Add Google Group to Issue Template

2026-07-08 15:15:23 +08:00 · 2020-01-28 14:05:47 -08:00
1140 changed files with 29117 additions and 90287 deletions
@@ -1,54 +0,0 @@
-#! /bin/bash
-
-# Work around issue with parallel make output causing random error, as in
-# make[1]: write error: stdout
-# Probably due to a kernel bug:
-#   https://bugs.launchpad.net/ubuntu/+source/linux-signed/+bug/1814393
-# Seems to affect image ubuntu-1604:201903-01 and ubuntu-1604:202004-01
-
-cd "$(dirname $0)"
-
-if [ ! -x cat_ignore_eagain.out ]; then
-    cc -x c -o cat_ignore_eagain.out - << EOF
-#include <unistd.h>
-#include <errno.h>
-#include <stdio.h>
-int main() {
-    int n, m, p;
-    char buf[1024];
-    for (;;) {
-        n = read(STDIN_FILENO, buf, 1024);
-        if (n > 0 && n <= 1024) {
-            for (m = 0; m < n;) {
-                p = write(STDOUT_FILENO, buf + m, n - m);
-                if (p < 0) {
-                    if (errno == EAGAIN) {
-                        // ignore but pause a bit
-                        usleep(100);
-                    } else {
-                        perror("write failed");
-                        return 42;
-                    }
-                } else {
-                    m += p;
-                }
-            }
-        } else if (n < 0) {
-            if (errno == EAGAIN) {
-                // ignore but pause a bit
-                usleep(100);
-            } else {
-                // Some non-ignorable error
-                perror("read failed");
-                return 43;
-            }
-        } else {
-            // EOF
-            return 0;
-        }
-    }
-}
-EOF
-fi
-
-exec ./cat_ignore_eagain.out
@@ -1,459 +0,0 @@
-version: 2.1
-
-orbs:
-  win: circleci/windows@2.4.0
-  slack: circleci/slack@3.4.2
-
-aliases:
-  - &notify-on-master-failure
-    fail_only: true
-    only_for_branches: master
-
-commands:
-  install-pyenv-on-macos:
-    steps:
-      - run:
-          name: Install pyenv on macos
-          command: |
-            HOMEBREW_NO_AUTO_UPDATE=1 brew install pyenv
-
-  increase-max-open-files-on-macos:
-    steps:
-      - run:
-          name: Increase max open files
-          command: |
-            sudo sysctl -w kern.maxfiles=1048576
-            sudo sysctl -w kern.maxfilesperproc=1048576
-            sudo launchctl limit maxfiles 1048576
-
-  pre-steps:
-    steps:
-      - checkout
-      - run: pyenv install --skip-existing 3.5.9
-      - run: pyenv global 3.5.9
-      - run:
-          name: Setup Environment Variables
-          command: |
-            echo "export GTEST_THROW_ON_FAILURE=0" >> $BASH_ENV
-            echo "export GTEST_OUTPUT=\"xml:/tmp/test-results/\"" >> $BASH_ENV
-            echo "export SKIP_FORMAT_BUCK_CHECKS=1" >> $BASH_ENV
-            echo "export PRINT_PARALLEL_OUTPUTS=1" >> $BASH_ENV
-
-  post-steps:
-    steps:
-      - slack/status: *notify-on-master-failure
-      - store_test_results: # store test result if there's any
-          path: /tmp/test-results
-      - store_artifacts: # store LOG for debugging if there's any
-          path: LOG
-
-  install-clang-10:
-    steps:
-      - run:
-          name: Install Clang 10
-          command: |
-            echo "deb http://apt.llvm.org/xenial/ llvm-toolchain-xenial-10 main" | sudo tee -a /etc/apt/sources.list
-            echo "deb-src http://apt.llvm.org/xenial/ llvm-toolchain-xenial-10 main" | sudo tee -a /etc/apt/sources.list
-            echo "APT::Acquire::Retries \"10\";" | sudo tee -a /etc/apt/apt.conf.d/80-retries # llvm.org unreliable
-            sudo apt-get update -y && sudo apt-get install -y clang-10
-
-  install-gflags:
-    steps:
-      - run:
-          name: Install gflags
-          command: |
-            sudo apt-get update -y && sudo apt-get install -y libgflags-dev
-  
-  install-gflags-on-macos:
-    steps:
-      - run:
-          name: Install gflags on macos
-          command: |
-            HOMEBREW_NO_AUTO_UPDATE=1 brew install gflags
-
-  install-gtest-parallel:
-    steps:
-      - run:
-          name: Install gtest-parallel
-          command: |
-            git clone --single-branch --branch master --depth 1 https://github.com/google/gtest-parallel.git ~/gtest-parallel
-            echo "export PATH=$HOME/gtest-parallel:$PATH" >> $BASH_ENV
-
-executors:
-  windows-2xlarge:
-    machine:
-      image: 'windows-server-2019-vs2019:stable'
-      resource_class: windows.2xlarge
-      shell: bash.exe
-
-jobs:
-  build-macos:
-    macos:
-      xcode: 11.3.0
-    steps:
-      - increase-max-open-files-on-macos
-      - install-pyenv-on-macos
-      - pre-steps
-      - install-gflags-on-macos
-      - run: ulimit -S -n 1048576 && OPT=-DCIRCLECI make V=1 J=32 -j32 check | .circleci/cat_ignore_eagain
-      - post-steps
-
-  build-linux:
-    machine:
-      image: ubuntu-1604:202007-01
-    resource_class: 2xlarge
-    steps:
-      - pre-steps
-      - install-gflags
-      - run: make V=1 J=32 -j32 check | .circleci/cat_ignore_eagain
-      - post-steps
-
-  build-linux-shared_lib-alt_namespace-status_checked:
-    machine:
-      image: ubuntu-1604:202007-01
-    resource_class: 2xlarge
-    steps:
-      - pre-steps
-      - install-gflags
-      - run: ASSERT_STATUS_CHECKED=1 TEST_UINT128_COMPAT=1 LIB_MODE=shared OPT="-DROCKSDB_NAMESPACE=alternative_rocksdb_ns" make V=1 -j32 all check_some | .circleci/cat_ignore_eagain
-      - post-steps
-
-  build-linux-release:
-    machine:
-      image: ubuntu-1604:202007-01
-    resource_class: 2xlarge
-    steps:
-      - checkout # check out the code in the project directory
-      - run: make V=1 -j32 release | .circleci/cat_ignore_eagain
-      - run: if ./db_stress --version; then false; else true; fi # ensure without gflags
-      - install-gflags
-      - run: make V=1 -j32 release | .circleci/cat_ignore_eagain
-      - run: ./db_stress --version # ensure with gflags
-      - post-steps
-
-  build-linux-release-rtti:
-    machine:
-      image: ubuntu-1604:201903-01
-    resource_class: large
-    steps:
-      - checkout # check out the code in the project directory
-      - run: make clean
-      - run: USE_RTTI=1 DEBUG_LEVEL=0 make V=1 -j16 static_lib tools db_bench | .circleci/cat_ignore_eagain
-      - run: if ./db_stress --version; then false; else true; fi # ensure without gflags
-      - run: sudo apt-get update -y && sudo apt-get install -y libgflags-dev
-      - run: make clean
-      - run: USE_RTTI=1 DEBUG_LEVEL=0 make V=1 -j16 static_lib tools db_bench | .circleci/cat_ignore_eagain
-      - run: ./db_stress --version # ensure with gflags
-
-  build-linux-lite:
-    machine:
-      image: ubuntu-1604:202007-01
-    resource_class: 2xlarge
-    steps:
-      - pre-steps
-      - install-gflags
-      - run: LITE=1 make V=1 J=32 -j32 check | .circleci/cat_ignore_eagain
-      - post-steps
-
-  build-linux-lite-release:
-    machine:
-      image: ubuntu-1604:202007-01
-    resource_class: large
-    steps:
-      - checkout # check out the code in the project directory
-      - run: LITE=1 make V=1 -j32 release | .circleci/cat_ignore_eagain
-      - run: if ./db_stress --version; then false; else true; fi # ensure without gflags
-      - install-gflags
-      - run: LITE=1 make V=1 -j32 release | .circleci/cat_ignore_eagain
-      - run: ./db_stress --version # ensure with gflags
-      - post-steps
-
-  build-linux-clang-no-test:
-    machine:
-      image: ubuntu-1604:202007-01
-    resource_class: 2xlarge
-    steps:
-      - checkout # check out the code in the project directory
-      - run: sudo apt-get update -y && sudo apt-get install -y clang libgflags-dev
-      - run: CC=clang CXX=clang++ USE_CLANG=1 PORTABLE=1 make V=1 -j32 all | .circleci/cat_ignore_eagain
-      - post-steps
-
-  build-linux-clang10-asan:
-    machine:
-      image: ubuntu-1604:202007-01
-    resource_class: 2xlarge
-    steps:
-      - pre-steps
-      - install-gflags
-      - install-clang-10
-      - run: COMPILE_WITH_ASAN=1 CC=clang-10 CXX=clang++-10 ROCKSDB_DISABLE_ALIGNED_NEW=1 USE_CLANG=1 make V=1 -j32 check | .circleci/cat_ignore_eagain # aligned new doesn't work for reason we haven't figured out
-      - post-steps
-
-  build-linux-clang10-mini-tsan:
-    machine:
-      image: ubuntu-1604:202007-01
-    resource_class: 2xlarge
-    steps:
-      - pre-steps
-      - install-gflags
-      - install-clang-10
-      - run: COMPILE_WITH_TSAN=1 CC=clang-10 CXX=clang++-10 ROCKSDB_DISABLE_ALIGNED_NEW=1 USE_CLANG=1 make V=1 -j32 check | .circleci/cat_ignore_eagain # aligned new doesn't work for reason we haven't figured out.
-      - post-steps
-
-  build-linux-clang10-ubsan:
-    machine:
-      image: ubuntu-1604:202007-01
-    resource_class: 2xlarge
-    steps:
-      - pre-steps
-      - install-gflags
-      - install-clang-10
-      - run: COMPILE_WITH_UBSAN=1 OPT="-fsanitize-blacklist=.circleci/ubsan_suppression_list.txt" CC=clang-10 CXX=clang++-10 ROCKSDB_DISABLE_ALIGNED_NEW=1 USE_CLANG=1 make V=1 -j32 ubsan_check | .circleci/cat_ignore_eagain # aligned new doesn't work for reason we haven't figured out
-      - post-steps
-
-  build-linux-clang10-clang-analyze:
-    machine:
-      image: ubuntu-1604:202007-01
-    resource_class: 2xlarge
-    steps:
-      - pre-steps
-      - install-gflags
-      - install-clang-10
-      - run: sudo apt-get update -y && sudo apt-get install -y clang-tools-10
-      - run: CC=clang-10 CXX=clang++-10 ROCKSDB_DISABLE_ALIGNED_NEW=1 CLANG_ANALYZER="/usr/bin/clang++-10" CLANG_SCAN_BUILD=scan-build-10 USE_CLANG=1 make V=1 -j32 analyze | .circleci/cat_ignore_eagain # aligned new doesn't work for reason we haven't figured out. For unknown, reason passing "clang++-10" as CLANG_ANALYZER doesn't work, and we need a full path.
-      - post-steps
-
-  build-linux-cmake:
-    machine:
-      image: ubuntu-1604:202007-01
-    resource_class: 2xlarge
-    steps:
-      - checkout # check out the code in the project directory
-      - run: (mkdir build && cd build && cmake -DWITH_GFLAGS=0 .. && make V=1 -j32) | .circleci/cat_ignore_eagain
-      - post-steps
-
-  build-linux-unity:
-    docker: # executor type
-      - image: gcc:latest
-    resource_class: xlarge
-    steps:
-      - checkout # check out the code in the project directory
-      - run: apt-get update -y && apt-get install -y libgflags-dev
-      - run: TEST_TMPDIR=/dev/shm && make V=1 -j16 unity_test | .circleci/cat_ignore_eagain
-      - post-steps
-
-  build-linux-gcc-4-8:
-    machine:
-      image: ubuntu-1604:202007-01
-    resource_class: large
-    steps:
-      - pre-steps
-      - run: sudo apt-get update -y && sudo apt-get install gcc-4.8 g++-4.8 libgflags-dev
-      - run: CC=gcc-4.8 CXX=g++-4.8 V=1 SKIP_LINK=1 make -j4 all | .circleci/cat_ignore_eagain # Linking broken because libgflags compiled with newer ABI
-      - post-steps
-
-  build-windows:
-    executor: windows-2xlarge
-    parameters:
-      extra_cmake_opt:
-        default: ""
-        type: string
-      vs_year:
-        default: "2019"
-        type: string
-      cmake_generator:
-        default: "Visual Studio 16 2019"
-        type: string
-    environment:
-      THIRDPARTY_HOME: C:/Users/circleci/thirdparty
-      CMAKE_HOME: C:/Users/circleci/thirdparty/cmake-3.16.4-win64-x64
-      CMAKE_BIN: C:/Users/circleci/thirdparty/cmake-3.16.4-win64-x64/bin/cmake.exe
-      SNAPPY_HOME: C:/Users/circleci/thirdparty/snappy-1.1.7
-      SNAPPY_INCLUDE: C:/Users/circleci/thirdparty/snappy-1.1.7;C:/Users/circleci/thirdparty/snappy-1.1.7/build
-      SNAPPY_LIB_DEBUG: C:/Users/circleci/thirdparty/snappy-1.1.7/build/Debug/snappy.lib
-      VS_YEAR: <<parameters.vs_year>>
-      CMAKE_GENERATOR: <<parameters.cmake_generator>>
-    steps:
-      - checkout
-      - run:
-          name: "Setup VS"
-          command: |
-            if [[ "${VS_YEAR}" == "2017" ]]; then
-              powershell .circleci/vs2017_install.ps1
-            elif [[ "${VS_YEAR}" == "2015" ]]; then
-              powershell .circleci/vs2015_install.ps1
-            fi
-      - run:
-          name: "Install thirdparty dependencies"
-          command: |
-            mkdir ${THIRDPARTY_HOME}
-            cd ${THIRDPARTY_HOME}
-            echo "Installing CMake..."
-            curl --fail --silent --show-error --output cmake-3.16.4-win64-x64.zip --location https://github.com/Kitware/CMake/releases/download/v3.16.4/cmake-3.16.4-win64-x64.zip
-            unzip -q cmake-3.16.4-win64-x64.zip
-            echo "Building Snappy dependency..."
-            curl --fail --silent --show-error --output snappy-1.1.7.zip --location https://github.com/google/snappy/archive/1.1.7.zip
-            unzip -q snappy-1.1.7.zip
-            cd snappy-1.1.7
-            mkdir build
-            cd build
-            ${CMAKE_BIN} -G "${CMAKE_GENERATOR}" ..
-            msbuild.exe Snappy.sln -maxCpuCount -property:Configuration=Debug -property:Platform=x64
-      - run:
-          name: "Build RocksDB"
-          command: |
-            mkdir build
-            cd build
-            ${CMAKE_BIN} -G "${CMAKE_GENERATOR}" -DCMAKE_BUILD_TYPE=Debug -DOPTDBG=1 -DPORTABLE=1 -DSNAPPY=1 -DJNI=1 << parameters.extra_cmake_opt >> ..
-            cd ..
-            msbuild.exe build/rocksdb.sln -maxCpuCount -property:Configuration=Debug -property:Platform=x64
-      - run:
-          name: "Test RocksDB"
-          shell: powershell.exe
-          command: |
-            build_tools\run_ci_db_test.ps1 -SuiteRun db_basic_test,db_test,db_test2,db_merge_operand_test,bloom_test,c_test,coding_test,crc32c_test,dynamic_bloom_test,env_basic_test,env_test,hash_test,random_test -Concurrency 16
-
-  build-linux-java:
-    machine:
-      image: ubuntu-1604:202007-01
-    resource_class: 2xlarge
-    steps:
-      - pre-steps
-      - install-gflags
-      - run:
-          name: "Build RocksDBJava"
-          command: |
-            export JAVA_HOME=/usr/lib/jvm/java-1.8.0-openjdk-amd64
-            export PATH=$JAVA_HOME/bin:$PATH
-            echo "JAVA_HOME=${JAVA_HOME}"
-            which java && java -version
-            which javac && javac -version
-            make V=1 J=32 -j32 rocksdbjava jtest | .circleci/cat_ignore_eagain
-      - post-steps
-
-  build-examples:
-    machine:
-      image: ubuntu-1604:202007-01
-    resource_class: medium
-    steps:
-      - pre-steps
-      - install-gflags
-      - run:
-          name: "Build examples"
-          command: |
-            OPT=-DTRAVIS V=1 make -j4 static_lib && cd examples && make -j4 | ../.circleci/cat_ignore_eagain
-      - post-steps
-
-  build-linux-non-shm:
-    machine:
-      image: ubuntu-1604:202007-01
-    resource_class: 2xlarge
-    parameters:
-      start_test:
-        default: ""
-        type: string
-      end_test:
-        default: ""
-        type: string
-    steps:
-      - pre-steps
-      - install-gflags
-      - install-gtest-parallel
-      - run:
-          name: "Build unit tests"
-          command: |
-            echo "env: $(env)"
-            echo "** done env"
-            ROCKSDBTESTS_START=<<parameters.start_test>> ROCKSDBTESTS_END=<<parameters.end_test>> ROCKSDBTESTS_SUBSET_TESTS_TO_FILE=/tmp/test_list make V=1 -j32 --output-sync=target build_subset_tests
-      - run:
-          name: "Run unit tests in parallel"
-          command: |
-            sed -i 's/[[:space:]]*$//; s/ / \.\//g; s/.*/.\/&/' /tmp/test_list
-            cat /tmp/test_list
-            export TEST_TMPDIR=/tmp/rocksdb_test_tmp
-            /usr/bin/python ../gtest-parallel/gtest-parallel $(</tmp/test_list) --output_dir=/tmp | cat  # pipe to cat to continuously output status on circleci UI. Otherwise, no status will be printed while the job is running.
-      - post-steps
-
-workflows:
-  build-linux:
-    jobs:
-      - build-linux
-  build-linux-shared_lib-alt_namespace-status_checked:
-    jobs:
-      - build-linux-shared_lib-alt_namespace-status_checked
-  build-linux-lite:
-    jobs:
-      - build-linux-lite
-  build-linux-release:
-    jobs:
-      - build-linux-release
-  build-linux-release-rtti:
-    jobs:
-      - build-linux-release-rtti
-  build-linux-lite-release:
-    jobs:
-      - build-linux-lite-release
-  build-linux-clang-no-test:
-    jobs:
-      - build-linux-clang-no-test
-  build-linux-clang10-asan:
-    jobs:
-      - build-linux-clang10-asan
-  build-linux-clang10-mini-tsan:
-    jobs:
-      - build-linux-clang10-mini-tsan
-  build-linux-clang10-ubsan:
-    jobs:
-      - build-linux-clang10-ubsan
-  build-linux-clang10-clang-analyze:
-    jobs:
-      - build-linux-clang10-clang-analyze
-  build-linux-cmake:
-    jobs:
-      - build-linux-cmake
-  build-linux-unity:
-    jobs:
-      - build-linux-unity
-  build-windows:
-    jobs:
-      - build-windows
-  build-windows-vs2017:
-    jobs:
-      - build-windows:
-          vs_year: "2017"
-          cmake_generator: "Visual Studio 15 Win64"
-  build-windows-vs2015:
-    jobs:
-      - build-windows:
-          vs_year: "2015"
-          cmake_generator: "Visual Studio 14 Win64"
-  build-windows-cxx20:
-    jobs:
-      - build-windows:
-          extra_cmake_opt: -DCMAKE_CXX_STANDARD=20
-  build-java:
-    jobs:
-      - build-linux-java
-  build-examples:
-    jobs:
-      - build-examples
-  build-linux-non-shm:
-    jobs:
-      - build-linux-non-shm:
-          start_test: ""
-          end_test: "db_options_test" # make sure unique in src.mk
-      - build-linux-non-shm:
-          start_test: "db_options_test" # make sure unique in src.mk
-          end_test: "filename_test" # make sure unique in src.mk
-      - build-linux-non-shm:
-          start_test: "filename_test" # make sure unique in src.mk
-          end_test: "statistics_test" # make sure unique in src.mk
-      - build-linux-non-shm:
-          start_test: "statistics_test" # make sure unique in src.mk
-          end_test: ""
-  build-linux-gcc-4-8:
-    jobs:
-      - build-linux-gcc-4-8
-  build-macos:
-    jobs:
-      - build-macos
@@ -1,6 +0,0 @@
-# Supress UBSAN warnings related to stl_tree.h, e.g.
-# UndefinedBehaviorSanitizer: undefined-behavior /usr/bin/../lib/gcc/x86_64-linux-gnu/5.4.0/../../../../include/c++/5.4.0/bits/stl_tree.h:1505:43 in 
-# /usr/bin/../lib/gcc/x86_64-linux-gnu/5.4.0/../../../../include/c++/5.4.0/bits/stl_tree.h:1505:43:
-# runtime error: upcast of address 0x000001fa8820 with insufficient space for an object of type
-# 'std::_Rb_tree_node<std::pair<const std::__cxx11::basic_string<char>, rocksdb::(anonymous namespace)::LockHoldingInfo> >'
-src:*bits/stl_tree.h
@@ -1,23 +0,0 @@
-$VS_DOWNLOAD_LINK = "https://go.microsoft.com/fwlink/?LinkId=691126"
-$COLLECT_DOWNLOAD_LINK = "https://aka.ms/vscollect.exe"
-curl.exe --retry 3 -kL $VS_DOWNLOAD_LINK --output vs_installer.exe
-if ($LASTEXITCODE -ne 0) {
-    echo "Download of the VS 2015 installer failed"
-    exit 1
-}
-$VS_INSTALL_ARGS = @("/Quiet", "/NoRestart")
-$process = Start-Process "${PWD}\vs_installer.exe" -ArgumentList $VS_INSTALL_ARGS -NoNewWindow -Wait -PassThru
-Remove-Item -Path vs_installer.exe -Force
-$exitCode = $process.ExitCode
-if (($exitCode -ne 0) -and ($exitCode -ne 3010)) {
-    echo "VS 2017 installer exited with code $exitCode, which should be one of [0, 3010]."
-    curl.exe --retry 3 -kL $COLLECT_DOWNLOAD_LINK --output Collect.exe
-    if ($LASTEXITCODE -ne 0) {
-        echo "Download of the VS Collect tool failed."
-        exit 1
-    }
-    Start-Process "${PWD}\Collect.exe" -NoNewWindow -Wait -PassThru
-    New-Item -Path "C:\w\build-results" -ItemType "directory" -Force
-    Copy-Item -Path "C:\Users\circleci\AppData\Local\Temp\vslogs.zip" -Destination "C:\w\build-results\"
-    exit 1
-}
@@ -1,34 +0,0 @@
-$VS_DOWNLOAD_LINK = "https://aka.ms/vs/15/release/vs_buildtools.exe"
-$COLLECT_DOWNLOAD_LINK = "https://aka.ms/vscollect.exe"
-$VS_INSTALL_ARGS = @("--nocache","--quiet","--wait", "--add Microsoft.VisualStudio.Workload.VCTools",
-                                                     "--add Microsoft.VisualStudio.Component.VC.Tools.14.13",
-                                                     "--add Microsoft.Component.MSBuild",
-                                                     "--add Microsoft.VisualStudio.Component.Roslyn.Compiler",
-                                                     "--add Microsoft.VisualStudio.Component.TextTemplating",
-                                                     "--add Microsoft.VisualStudio.Component.VC.CoreIde",
-                                                     "--add Microsoft.VisualStudio.Component.VC.Redist.14.Latest",
-                                                     "--add Microsoft.VisualStudio.ComponentGroup.NativeDesktop.Core",
-                                                     "--add Microsoft.VisualStudio.Component.VC.Tools.x86.x64",
-                                                     "--add Microsoft.VisualStudio.ComponentGroup.NativeDesktop.Win81")
-
-curl.exe --retry 3 -kL $VS_DOWNLOAD_LINK --output vs_installer.exe
-if ($LASTEXITCODE -ne 0) {
-    echo "Download of the VS 2017 installer failed"
-    exit 1
-}
-
-$process = Start-Process "${PWD}\vs_installer.exe" -ArgumentList $VS_INSTALL_ARGS -NoNewWindow -Wait -PassThru
-Remove-Item -Path vs_installer.exe -Force
-$exitCode = $process.ExitCode
-if (($exitCode -ne 0) -and ($exitCode -ne 3010)) {
-    echo "VS 2017 installer exited with code $exitCode, which should be one of [0, 3010]."
-    curl.exe --retry 3 -kL $COLLECT_DOWNLOAD_LINK --output Collect.exe
-    if ($LASTEXITCODE -ne 0) {
-        echo "Download of the VS Collect tool failed."
-        exit 1
-    }
-    Start-Process "${PWD}\Collect.exe" -NoNewWindow -Wait -PassThru
-    New-Item -Path "C:\w\build-results" -ItemType "directory" -Force
-    Copy-Item -Path "C:\Users\circleci\AppData\Local\Temp\vslogs.zip" -Destination "C:\w\build-results\"
-    exit 1
-}
@@ -1,41 +0,0 @@
-name: Check buck targets and code format
-on: [push, pull_request]
-jobs:
-  check:
-    name: Check TARGETS file and code format
-    runs-on: ubuntu-latest
-    steps:
-    - name: Checkout feature branch
-      uses: actions/checkout@v2
-      with:
-        fetch-depth: 0
-
-    - name: Fetch from upstream
-      run: |
-        git remote add upstream https://github.com/facebook/rocksdb.git && git fetch upstream
-
-    - name: Where am I
-      run: |
-        echo git status && git status
-        echo "git remote -v" && git remote -v
-        echo git branch && git branch
-
-    - name: Setup Python
-      uses: actions/setup-python@v1
-
-    - name: Install Dependencies
-      run: python -m pip install --upgrade pip
-
-    - name: Install argparse
-      run: pip install argparse
-
-    - name: Download clang-format-diff.py
-      uses: wei/wget@v1
-      with:
-        args: https://raw.githubusercontent.com/llvm-mirror/clang/master/tools/clang-format/clang-format-diff.py
-
-    - name: Check format
-      run: VERBOSE_CHECK=1 make check-format
-
-    - name: Compare buckify output
-      run: make check-buck-targets
@@ -1,5 +1,4 @@
 make_config.mk
-rocksdb.pc

 *.a
 *.arc
@@ -35,7 +34,6 @@ manifest_dump
 sst_dump
 blob_dump
 block_cache_trace_analyzer
-db_with_timestamp_basic_test
 tools/block_cache_analyzer/*.pyc
 column_aware_encoding_exp
 util/build_version.cc
@@ -53,10 +51,7 @@ db_test2
 trace_analyzer
 trace_analyzer_test
 block_cache_trace_analyzer
-io_tracer_parser
 .DS_Store
-.vs
-.vscode

 java/out
 java/target
@@ -85,7 +80,3 @@ fbcode/
 fbcode
 buckifier/*.pyc
 buckifier/__pycache__
-
-compile_commands.json
-clang-format-diff.py
-.py3/
@@ -3,14 +3,12 @@ language: cpp
 os:
  - linux
  - osx
-arch:
-  - amd64
-  - arm64
-  - ppc64le
 compiler:
  - clang
  - gcc
 osx_image: xcode9.4
+jdk:
+  - openjdk7
 cache:
  - ccache

@@ -50,213 +48,43 @@ env:
  - JOB_NAME=examples # 5-7 minutes
  - JOB_NAME=cmake # 3-5 minutes
  - JOB_NAME=cmake-gcc8 # 3-5 minutes
-  - JOB_NAME=cmake-gcc9 # 3-5 minutes
-  - JOB_NAME=cmake-gcc9-c++20 # 3-5 minutes
  - JOB_NAME=cmake-mingw # 3 minutes
-  - JOB_NAME=make-gcc4.8
-  - JOB_NAME=status_checked

 matrix:
  exclude:
+  - os: osx
+    env: TEST_GROUP=1
+  - os: osx
+    env: TEST_GROUP=2
+  - os: osx
+    env: TEST_GROUP=3
+  - os: osx
+    env: TEST_GROUP=4
  - os: osx
    env: JOB_NAME=cmake-gcc8
-  - os: osx
-    env: JOB_NAME=cmake-gcc9
-  - os: osx
-    env: JOB_NAME=cmake-gcc9-c++20
-  - os: osx
-    env: JOB_NAME=cmake-mingw
-  - os: osx
-    env: JOB_NAME=make-gcc4.8
-  - os: osx
-    arch: ppc64le
-  - os: osx
-    compiler: gcc
-  - os : linux
-    arch: arm64
+  - os : osx
    env: JOB_NAME=cmake-mingw
  - os : linux
-    arch: arm64
-    env: JOB_NAME=make-gcc4.8
-  - os: linux
-    arch: ppc64le
-    env: JOB_NAME=cmake-mingw
-  - os: linux
-    arch: ppc64le
-    env: JOB_NAME=make-gcc4.8
-  - os: linux
    compiler: clang
-  # Exclude all but most unique cmake variants for pull requests, but build all in branches
-  - if: type = pull_request AND commit_message !~ /FULL_CI/
-    os : linux
-    arch: amd64
-    env: JOB_NAME=cmake
-  - if: type = pull_request AND commit_message !~ /FULL_CI/
-    os : linux
-    arch: amd64
-    env: JOB_NAME=cmake-gcc8
-  - if: type = pull_request AND commit_message !~ /FULL_CI/
-    os : linux
-    arch: amd64
-    env: JOB_NAME=cmake-gcc9
-  # Exclude most osx, arm64 and ppc64le tests for pull requests, but build in branches
-  # Temporarily disable ppc64le cmake test while snapd is broken
-  - if: type = pull_request AND commit_message !~ /FULL_CI/
-    os: linux
-    arch: ppc64le
-    env: JOB_NAME=cmake
-  # NB: the cmake build is a partial java test
-  - if: type = pull_request AND commit_message !~ /FULL_CI/
-    os: osx
-    env: TEST_GROUP=1
-  - if: type = pull_request AND commit_message !~ /FULL_CI/
-    os : linux
-    arch: arm64
-    env: TEST_GROUP=1
-  - if: type = pull_request AND commit_message !~ /FULL_CI/
-    os: linux
-    arch: ppc64le
-    env: TEST_GROUP=1
-  - if: type = pull_request AND commit_message !~ /FULL_CI/
-    os: osx
-    env: TEST_GROUP=2
-  - if: type = pull_request AND commit_message !~ /FULL_CI/
-    os : linux
-    arch: arm64
-    env: TEST_GROUP=2
-  - if: type = pull_request AND commit_message !~ /FULL_CI/
-    os: linux
-    arch: ppc64le
-    env: TEST_GROUP=2
-  - if: type = pull_request AND commit_message !~ /FULL_CI/
-    os: osx
-    env: TEST_GROUP=3
-  - if: type = pull_request AND commit_message !~ /FULL_CI/
-    os : linux
-    arch: arm64
-    env: TEST_GROUP=3
-  - if: type = pull_request AND commit_message !~ /FULL_CI/
-    os: linux
-    arch: ppc64le
-    env: TEST_GROUP=3
-  - if: type = pull_request AND commit_message !~ /FULL_CI/
-    os: osx
-    env: TEST_GROUP=4
-  - if: type = pull_request AND commit_message !~ /FULL_CI/
-    os : linux
-    arch: arm64
-    env: TEST_GROUP=4
-  - if: type = pull_request AND commit_message !~ /FULL_CI/
-    os: linux
-    arch: ppc64le
-    env: TEST_GROUP=4
-  - if: type = pull_request AND commit_message !~ /FULL_CI/ AND commit_message !~ /java/
-    os : osx
-    env: JOB_NAME=java_test
-  - if: type = pull_request AND commit_message !~ /FULL_CI/ AND commit_message !~ /java/
-    os : linux
-    arch: arm64
-    env: JOB_NAME=java_test
-  - if: type = pull_request AND commit_message !~ /FULL_CI/ AND commit_message !~ /java/
-    os: linux
-    arch: ppc64le
-    env: JOB_NAME=java_test
-  - if: type = pull_request AND commit_message !~ /FULL_CI/
-    os : osx
-    env: JOB_NAME=lite_build
-  - if: type = pull_request AND commit_message !~ /FULL_CI/
-    os : linux
-    arch: arm64
-    env: JOB_NAME=lite_build
-  - if: type = pull_request AND commit_message !~ /FULL_CI/
-    os: linux
-    arch: ppc64le
-    env: JOB_NAME=lite_build
-  - if: type = pull_request AND commit_message !~ /FULL_CI/
-    os : osx
-    env: JOB_NAME=examples
-  - if: type = pull_request AND commit_message !~ /FULL_CI/
-    os : linux
-    arch: arm64
-    env: JOB_NAME=examples
-  - if: type = pull_request AND commit_message !~ /FULL_CI/
-    os: linux
-    arch: ppc64le
-    env: JOB_NAME=examples
-  - if: type = pull_request AND commit_message !~ /FULL_CI/
-    os : linux
-    arch: arm64
-    env: JOB_NAME=cmake-gcc8
-  - if: type = pull_request AND commit_message !~ /FULL_CI/
-    os: linux
-    arch: ppc64le
-    env: JOB_NAME=cmake-gcc8
-  - if: type = pull_request AND commit_message !~ /FULL_CI/
-    os : linux
-    arch: arm64
-    env: JOB_NAME=cmake-gcc9
-  - if: type = pull_request AND commit_message !~ /FULL_CI/
-    os: linux
-    arch: ppc64le
-    env: JOB_NAME=cmake-gcc9
-  - if: type = pull_request AND commit_message !~ /FULL_CI/
-    os : linux
-    arch: arm64
-    env: JOB_NAME=cmake-gcc9-c++20
-  - if: type = pull_request AND commit_message !~ /FULL_CI/
-    os: linux
-    arch: ppc64le
-    env: JOB_NAME=cmake-gcc9-c++20
-  - if: type = pull_request AND commit_message !~ /FULL_CI/
-    os : osx
-    env: JOB_NAME=status_checked
-  - if: type = pull_request AND commit_message !~ /FULL_CI/
-    os : linux
-    arch: arm64
-    env: JOB_NAME=status_checked
-  - if: type = pull_request AND commit_message !~ /FULL_CI/
-    os: linux
-    arch: ppc64le
-    env: JOB_NAME=status_checked
+  - os : osx
+    compiler: gcc

 install:
  - if [ "${TRAVIS_OS_NAME}" == osx ]; then
      PATH=$PATH:/usr/local/opt/ccache/libexec;
    fi
  - if [ "${JOB_NAME}" == cmake-gcc8 ]; then
-      sudo apt-get install -y g++-8 || exit $?;
+      sudo apt-get install -y g++-8;
      CC=gcc-8 && CXX=g++-8;
    fi
-  - if [ "${JOB_NAME}" == cmake-gcc9 ] || [ "${JOB_NAME}" == cmake-gcc9-c++20 ]; then
-      sudo apt-get install -y g++-9 || exit $?;
-      CC=gcc-9 && CXX=g++-9;
-    fi
  - if [ "${JOB_NAME}" == cmake-mingw ]; then
-      sudo apt-get install -y mingw-w64 || exit $?;
-    fi
-  - if [ "${JOB_NAME}" == make-gcc4.8 ]; then
-      sudo apt-get install -y g++-4.8 || exit $?;
-      CC=gcc-4.8 && CXX=g++-4.8;
+      sudo apt-get install -y mingw-w64 ;
    fi
  - if [[ "${JOB_NAME}" == cmake* ]] && [ "${TRAVIS_OS_NAME}" == linux ]; then
-      sudo apt-get install snapd && sudo snap install cmake --beta --classic || exit $?;
-      export PATH=/snap/bin:$PATH;
+      mkdir cmake-dist && curl -sfSL https://github.com/Kitware/CMake/releases/download/v3.14.5/cmake-3.14.5-Linux-x86_64.tar.gz | tar --strip-components=1 -C cmake-dist -xz && export PATH=$PWD/cmake-dist/bin:$PATH;
    fi
-  - |
-    if [[ "${JOB_NAME}" == java_test || "${JOB_NAME}" == cmake* ]]; then
-      # Ensure JDK 8
-      if [ "${TRAVIS_OS_NAME}" == osx ]; then
-        brew tap AdoptOpenJDK/openjdk || exit $?
-        brew cask install adoptopenjdk8 || exit $?
-        export JAVA_HOME=$(/usr/libexec/java_home)
-      else
-        sudo apt-get install -y openjdk-8-jdk || exit $?
-        export PATH=/usr/lib/jvm/java-8-openjdk-$(dpkg --print-architecture)/bin:$PATH
-        export JAVA_HOME=/usr/lib/jvm/java-8-openjdk-$(dpkg --print-architecture)
-      fi
-      echo "JAVA_HOME=${JAVA_HOME}"
-      which java && java -version
-      which javac && javac -version
+  - if [[ "${JOB_NAME}" == java_test ]]; then
+      java -version && echo "JAVA_HOME=${JAVA_HOME}";
    fi

 before_script:
@@ -265,23 +93,23 @@ before_script:
  - ulimit -n 8192

 script:
-  - date; ${CXX} --version
+  - ${CXX} --version
  - if [ `command -v ccache` ]; then ccache -C; fi
  - case $TEST_GROUP in
    platform_dependent)
-      OPT=-DTRAVIS V=1 ROCKSDBTESTS_PLATFORM_DEPENDENT=only make -j4 all_but_some_tests check_some
+      OPT=-DTRAVIS V=1 ROCKSDBTESTS_END=db_block_cache_test make -j4 all_but_some_tests check_some
      ;;
    1)
-      OPT=-DTRAVIS V=1 ROCKSDBTESTS_PLATFORM_DEPENDENT=exclude ROCKSDBTESTS_END=backupable_db_test make -j4 check_some
+      OPT=-DTRAVIS V=1 ROCKSDBTESTS_START=db_block_cache_test ROCKSDBTESTS_END=db_iter_test make -j4 check_some
      ;;
    2)
-      OPT="-DTRAVIS -DROCKSDB_NAMESPACE=alternative_rocksdb_ns" V=1 make -j4 tools && OPT="-DTRAVIS -DROCKSDB_NAMESPACE=alternative_rocksdb_ns" V=1 ROCKSDBTESTS_PLATFORM_DEPENDENT=exclude ROCKSDBTESTS_START=backupable_db_test ROCKSDBTESTS_END=db_universal_compaction_test make -j4 check_some
+      OPT=-DTRAVIS V=1 make -j4 tools && OPT=-DTRAVIS V=1 ROCKSDBTESTS_START=db_iter_test ROCKSDBTESTS_END=options_file_test make -j4 check_some
      ;;
    3)
-      OPT=-DTRAVIS LIB_MODE=shared V=1 ROCKSDBTESTS_PLATFORM_DEPENDENT=exclude ROCKSDBTESTS_START=db_universal_compaction_test ROCKSDBTESTS_END=table_properties_collector_test make -j4 check_some
+      OPT=-DTRAVIS V=1 ROCKSDBTESTS_START=options_file_test ROCKSDBTESTS_END=write_prepared_transaction_test make -j4 check_some
      ;;
    4)
-      OPT=-DTRAVIS V=1 ROCKSDBTESTS_PLATFORM_DEPENDENT=exclude ROCKSDBTESTS_START=table_properties_collector_test make -j4 check_some
+      OPT=-DTRAVIS V=1 ROCKSDBTESTS_START=write_prepared_transaction_test make -j4 check_some
      ;;
    esac
  - case $JOB_NAME in
@@ -289,7 +117,7 @@ script:
      OPT=-DTRAVIS V=1 make rocksdbjava jtest
      ;;
    lite_build)
-      OPT='-DTRAVIS -DROCKSDB_LITE' V=1 make -j4 all
+      OPT='-DTRAVIS -DROCKSDB_LITE' V=1 make -j4 static_lib tools
      ;;
    examples)
      OPT=-DTRAVIS V=1 make -j4 static_lib && cd examples && make -j4
@@ -299,19 +127,7 @@ script:
      mkdir build && cd build && cmake -DJNI=1 -DWITH_GFLAGS=OFF .. -DCMAKE_C_COMPILER=x86_64-w64-mingw32-gcc -DCMAKE_CXX_COMPILER=x86_64-w64-mingw32-g++ -DCMAKE_SYSTEM_NAME=Windows && make -j4 rocksdb rocksdbjni
      ;;
    cmake*)
-      case $JOB_NAME in
-        *-c++20)
-          OPT=-DCMAKE_CXX_STANDARD=20
-          ;;
-      esac
-
-      mkdir build && cd build && cmake -DCMAKE_BUILD_TYPE=Release -DWITH_TESTS=0 -DWITH_GFLAGS=0 -DWITH_BENCHMARK_TOOLS=0 -DWITH_TOOLS=0 -DWITH_CORE_TOOLS=1 .. && make -j4 && cd  .. && rm -rf build && mkdir build && cd build && cmake -DJNI=1 .. -DCMAKE_BUILD_TYPE=Release $OPT && make -j4 rocksdb rocksdbjni
-      ;;
-    make-gcc4.8)
-      OPT=-DTRAVIS V=1 SKIP_LINK=1 make -j4 all && [ "Linking broken because libgflags compiled with newer ABI" ]
-      ;;
-    status_checked)
-      OPT=-DTRAVIS V=1 ASSERT_STATUS_CHECKED=1 make -j4 check_some
+      mkdir build && cd build && cmake -DJNI=1 .. -DCMAKE_BUILD_TYPE=Release && make -j4 rocksdb rocksdbjni
      ;;
    esac
 notifications:
@@ -83,10 +83,6 @@ else()
  option(WITH_FOLLY_DISTRIBUTED_MUTEX "build with folly::DistributedMutex" OFF)
 endif()

-if( NOT DEFINED CMAKE_CXX_STANDARD )
-  set(CMAKE_CXX_STANDARD 11)
-endif()
-
 include(CMakeDependentOption)
 CMAKE_DEPENDENT_OPTION(WITH_GFLAGS "build with GFlags" ON
  "NOT MSVC;NOT MINGW" OFF)
@@ -95,7 +91,7 @@ if(MSVC)
  option(WITH_XPRESS "build with windows built in compression" OFF)
  include(${CMAKE_CURRENT_SOURCE_DIR}/thirdparty.inc)
 else()
-  if(CMAKE_SYSTEM_NAME MATCHES "FreeBSD" AND NOT CMAKE_SYSTEM_NAME MATCHES "kFreeBSD")
+  if(CMAKE_SYSTEM_NAME MATCHES "FreeBSD")
    # FreeBSD has jemalloc as default malloc
    # but it does not have all the jemalloc files in include/...
    set(WITH_JEMALLOC ON)
@@ -107,35 +103,18 @@ else()
    endif()
  endif()

-  set(GFLAGS_LIB)
+  # No config file for this
  if(WITH_GFLAGS)
-    # Config with namespace available since gflags 2.2.2
-    option(GFLAGS_USE_TARGET_NAMESPACE "Use gflags import target with namespace." ON)
-    find_package(gflags CONFIG)
-    if(gflags_FOUND)
-      if(TARGET ${GFLAGS_TARGET})
-        # Config with GFLAGS_TARGET available since gflags 2.2.0
-        set(GFLAGS_LIB ${GFLAGS_TARGET})
-      else()
-        # Config with GFLAGS_LIBRARIES available since gflags 2.1.0
-        set(GFLAGS_LIB ${GFLAGS_LIBRARIES})
-      endif()
-    else()
-      find_package(gflags REQUIRED)
-        set(GFLAGS_LIB gflags::gflags)
-    endif()
-    include_directories(${GFLAGS_INCLUDE_DIR})
-    list(APPEND THIRDPARTY_LIBS ${GFLAGS_LIB})
+    find_package(gflags REQUIRED)
    add_definitions(-DGFLAGS=1)
+    include_directories(${gflags_INCLUDE_DIR})
+    list(APPEND THIRDPARTY_LIBS gflags::gflags)
  endif()

  if(WITH_SNAPPY)
-    find_package(Snappy CONFIG)
-    if(NOT Snappy_FOUND)
-      find_package(Snappy REQUIRED)
-    endif()
+    find_package(snappy REQUIRED)
    add_definitions(-DSNAPPY)
-    list(APPEND THIRDPARTY_LIBS Snappy::snappy)
+    list(APPEND THIRDPARTY_LIBS snappy::snappy)
  endif()

  if(WITH_ZLIB)
@@ -212,6 +191,7 @@ else()
    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-format -fno-asynchronous-unwind-tables")
    add_definitions(-D_POSIX_C_SOURCE=1)
  endif()
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
  if(NOT CMAKE_BUILD_TYPE STREQUAL "Debug")
    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-omit-frame-pointer")
    include(CheckCXXCompilerFlag)
@@ -223,25 +203,16 @@ else()
 endif()

 include(CheckCCompilerFlag)
-if(CMAKE_SYSTEM_PROCESSOR MATCHES "^(powerpc|ppc)64")
-  CHECK_C_COMPILER_FLAG("-mcpu=power9" HAS_POWER9)
-  if(HAS_POWER9)
-    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -mcpu=power9 -mtune=power9")
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mcpu=power9 -mtune=power9")
-  else()
-    CHECK_C_COMPILER_FLAG("-mcpu=power8" HAS_POWER8)
-    if(HAS_POWER8)
-      set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -mcpu=power8 -mtune=power8")
-      set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mcpu=power8 -mtune=power8")
-    endif(HAS_POWER8)
-  endif(HAS_POWER9)
+if(CMAKE_SYSTEM_PROCESSOR MATCHES "ppc64le")
  CHECK_C_COMPILER_FLAG("-maltivec" HAS_ALTIVEC)
  if(HAS_ALTIVEC)
    message(STATUS " HAS_ALTIVEC yes")
    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -maltivec")
    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -maltivec")
+    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -mcpu=power8")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mcpu=power8")
  endif(HAS_ALTIVEC)
-endif(CMAKE_SYSTEM_PROCESSOR MATCHES "^(powerpc|ppc)64")
+endif(CMAKE_SYSTEM_PROCESSOR MATCHES "ppc64le")

 if(CMAKE_SYSTEM_PROCESSOR MATCHES "aarch64|AARCH64")
        CHECK_C_COMPILER_FLAG("-march=armv8-a+crc+crypto" HAS_ARMV8_CRC)
@@ -254,35 +225,17 @@ endif(CMAKE_SYSTEM_PROCESSOR MATCHES "aarch64|AARCH64")

 option(PORTABLE "build a portable binary" OFF)
 option(FORCE_SSE42 "force building with SSE4.2, even when PORTABLE=ON" OFF)
-option(FORCE_AVX "force building with AVX, even when PORTABLE=ON" OFF)
-option(FORCE_AVX2 "force building with AVX2, even when PORTABLE=ON" OFF)
 if(PORTABLE)
  # MSVC does not need a separate compiler flag to enable SSE4.2; if nmmintrin.h
  # is available, it is available by default.
  if(FORCE_SSE42 AND NOT MSVC)
    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -msse4.2 -mpclmul")
  endif()
-  if(MSVC)
-    if(FORCE_AVX)
-      set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /arch:AVX")
-    endif()
-    # MSVC automatically enables BMI / lzcnt with AVX2.
-    if(FORCE_AVX2)
-      set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /arch:AVX2")
-    endif()
-  else()
-    if(FORCE_AVX)
-      set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mavx")
-    endif()
-    if(FORCE_AVX2)
-      set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mavx2 -mbmi -mlzcnt")
-    endif()
-  endif()
 else()
  if(MSVC)
    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /arch:AVX2")
  else()
-    if(NOT CMAKE_SYSTEM_PROCESSOR MATCHES "^(powerpc|ppc)64" AND NOT HAS_ARMV8_CRC)
+    if(NOT HAVE_POWER8 AND NOT HAS_ARMV8_CRC)
      set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -march=native")
    endif()
  endif()
@@ -292,7 +245,6 @@ include(CheckCXXSourceCompiles)
 if(NOT MSVC)
  set(CMAKE_REQUIRED_FLAGS "-msse4.2 -mpclmul")
 endif()
-
 CHECK_CXX_SOURCE_COMPILES("
 #include <cstdint>
 #include <nmmintrin.h>
@@ -391,12 +343,6 @@ if(NOT WITH_DYNAMIC_EXTENSION)
  add_definitions(-DROCKSDB_NO_DYNAMIC_EXTENSION)
 endif()

-option(ASSERT_STATUS_CHECKED "build with assert status checked" OFF)
-if (ASSERT_STATUS_CHECKED)
-  message(STATUS "Build with assert status checked")
-  add_definitions(-DROCKSDB_ASSERT_STATUS_CHECKED)
-endif()
-
 if(DEFINED USE_RTTI)
  if(USE_RTTI)
    message(STATUS "Enabling RTTI")
@@ -431,15 +377,7 @@ if(MSVC)
    message(STATUS "Debug optimization is enabled")
    set(CMAKE_CXX_FLAGS_DEBUG "/Oxt")
  else()
-    set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} /Od /RTC1")
-
-    # Minimal Build is deprecated after MSVC 2015
-    if( MSVC_VERSION GREATER 1900 )
-      set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} /Gm-")
-    else()
-      set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} /Gm")
-    endif()
-
+    set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} /Od /RTC1 /Gm")
  endif()
  if(WITH_RUNTIME_DEBUG)
    set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} /${RUNTIME_LIBRARY}d")
@@ -475,8 +413,6 @@ elseif(CMAKE_SYSTEM_NAME MATCHES "Linux")
  add_definitions(-DOS_LINUX)
 elseif(CMAKE_SYSTEM_NAME MATCHES "SunOS")
  add_definitions(-DOS_SOLARIS)
-elseif(CMAKE_SYSTEM_NAME MATCHES "kFreeBSD")
-  add_definitions(-DOS_GNU_KFREEBSD)
 elseif(CMAKE_SYSTEM_NAME MATCHES "FreeBSD")
  add_definitions(-DOS_FREEBSD)
 elseif(CMAKE_SYSTEM_NAME MATCHES "NetBSD")
@@ -535,11 +471,7 @@ if(HAVE_PTHREAD_MUTEX_ADAPTIVE_NP)
 endif()

 include(CheckCXXSymbolExists)
-if(CMAKE_SYSTEM_NAME MATCHES "^FreeBSD")
-  check_cxx_symbol_exists(malloc_usable_size malloc_np.h HAVE_MALLOC_USABLE_SIZE)
-else()
-  check_cxx_symbol_exists(malloc_usable_size malloc.h HAVE_MALLOC_USABLE_SIZE)
-endif()
+check_cxx_symbol_exists(malloc_usable_size malloc.h HAVE_MALLOC_USABLE_SIZE)
 if(HAVE_MALLOC_USABLE_SIZE)
  add_definitions(-DROCKSDB_MALLOC_USABLE_SIZE)
 endif()
@@ -549,13 +481,9 @@ if(HAVE_SCHED_GETCPU)
  add_definitions(-DROCKSDB_SCHED_GETCPU_PRESENT)
 endif()

-check_cxx_symbol_exists(getauxval auvx.h HAVE_AUXV_GETAUXVAL)
-if(HAVE_AUXV_GETAUXVAL)
-  add_definitions(-DROCKSDB_AUXV_GETAUXVAL_PRESENT)
-endif()
-
 include_directories(${PROJECT_SOURCE_DIR})
 include_directories(${PROJECT_SOURCE_DIR}/include)
+include_directories(SYSTEM ${PROJECT_SOURCE_DIR}/third-party/gtest-1.8.1/fused-src)
 if(WITH_FOLLY_DISTRIBUTED_MUTEX)
  include_directories(${PROJECT_SOURCE_DIR}/third-party/folly)
 endif()
@@ -564,19 +492,10 @@ find_package(Threads REQUIRED)
 # Main library source code

 set(SOURCES
-        cache/cache.cc
        cache/clock_cache.cc
        cache/lru_cache.cc
        cache/sharded_cache.cc
        db/arena_wrapped_db_iter.cc
-        db/blob/blob_file_addition.cc
-        db/blob/blob_file_builder.cc
-        db/blob/blob_file_garbage.cc
-        db/blob/blob_file_meta.cc
-        db/blob/blob_file_reader.cc
-        db/blob/blob_log_format.cc
-        db/blob/blob_log_sequential_reader.cc
-        db/blob/blob_log_writer.cc
        db/builder.cc
        db/c.cc
        db/column_family.cc
@@ -588,7 +507,6 @@ set(SOURCES
        db/compaction/compaction_picker_fifo.cc
        db/compaction/compaction_picker_level.cc
        db/compaction/compaction_picker_universal.cc
-        db/compaction/sst_partitioner.cc
        db/convenience.cc
        db/db_filesnapshot.cc
        db/db_impl/db_impl.cc
@@ -621,8 +539,6 @@ set(SOURCES
        db/memtable_list.cc
        db/merge_helper.cc
        db/merge_operator.cc
-        db/output_validator.cc
-        db/periodic_work_scheduler.cc
        db/range_del_aggregator.cc
        db/range_tombstone_fragmenter.cc
        db/repair.cc
@@ -633,9 +549,7 @@ set(SOURCES
        db/trim_history_scheduler.cc
        db/version_builder.cc
        db/version_edit.cc
-        db/version_edit_handler.cc
        db/version_set.cc
-        db/wal_edit.cc
        db/wal_manager.cc
        db/write_batch.cc
        db/write_batch_base.cc
@@ -646,7 +560,6 @@ set(SOURCES
        env/env_encryption.cc
        env/env_hdfs.cc
        env/file_system.cc
-        env/file_system_tracer.cc
        env/mock_env.cc
        file/delete_scheduler.cc
        file/file_prefetch_buffer.cc
@@ -664,7 +577,6 @@ set(SOURCES
        memory/arena.cc
        memory/concurrent_arena.cc
        memory/jemalloc_nodump_allocator.cc
-        memory/memkind_kmem_allocator.cc
        memtable/alloc_tracker.cc
        memtable/hash_linklist_rep.cc
        memtable/hash_skiplist_rep.cc
@@ -685,22 +597,19 @@ set(SOURCES
        monitoring/thread_status_util.cc
        monitoring/thread_status_util_debug.cc
        options/cf_options.cc
-        options/configurable.cc
        options/db_options.cc
        options/options.cc
        options/options_helper.cc
        options/options_parser.cc
+        options/options_sanity_check.cc
        port/stack_trace.cc
        table/adaptive/adaptive_table_factory.cc
-        table/block_based/binary_search_index_reader.cc
        table/block_based/block.cc
        table/block_based/block_based_filter_block.cc
        table/block_based/block_based_table_builder.cc
        table/block_based/block_based_table_factory.cc
-        table/block_based/block_based_table_iterator.cc
        table/block_based/block_based_table_reader.cc
        table/block_based/block_builder.cc
-        table/block_based/block_prefetcher.cc
        table/block_based/block_prefix_index.cc
        table/block_based/data_block_hash_index.cc
        table/block_based/data_block_footer.cc
@@ -708,14 +617,9 @@ set(SOURCES
        table/block_based/filter_policy.cc
        table/block_based/flush_block_policy.cc
        table/block_based/full_filter_block.cc
-        table/block_based/hash_index_reader.cc
        table/block_based/index_builder.cc
-        table/block_based/index_reader_common.cc
        table/block_based/parsed_full_filter_block.cc
        table/block_based/partitioned_filter_block.cc
-        table/block_based/partitioned_index_iterator.cc
-        table/block_based/partitioned_index_reader.cc
-        table/block_based/reader_common.cc
        table/block_based/uncompression_dict_reader.cc
        table/block_fetcher.cc
        table/cuckoo/cuckoo_table_builder.cc
@@ -733,10 +637,8 @@ set(SOURCES
        table/plain/plain_table_index.cc
        table/plain/plain_table_key_coding.cc
        table/plain/plain_table_reader.cc
-        table/sst_file_dumper.cc
        table/sst_file_reader.cc
        table/sst_file_writer.cc
-        table/table_factory.cc
        table/table_properties.cc
        table/two_level_iterator.cc
        test_util/sync_point.cc
@@ -745,14 +647,12 @@ set(SOURCES
        test_util/transaction_test_util.cc
        tools/block_cache_analyzer/block_cache_trace_analyzer.cc
        tools/dump/db_dump_tool.cc
-        tools/io_tracer_parser_tool.cc
        tools/ldb_cmd.cc
        tools/ldb_tool.cc
        tools/sst_dump_tool.cc
        tools/trace_analyzer_tool.cc
        trace_replay/trace_replay.cc
        trace_replay/block_cache_tracer.cc
-        trace_replay/io_tracer.cc
        util/coding.cc
        util/compaction_job_stats_impl.cc
        util/comparator.cc
@@ -765,7 +665,6 @@ set(SOURCES
        util/random.cc
        util/rate_limiter.cc
        util/slice.cc
-        util/file_checksum_helper.cc
        util/status.cc
        util/string_util.cc
        util/thread_local.cc
@@ -778,6 +677,9 @@ set(SOURCES
        utilities/blob_db/blob_db_impl_filesnapshot.cc
        utilities/blob_db/blob_dump_tool.cc
        utilities/blob_db/blob_file.cc
+        utilities/blob_db/blob_log_reader.cc
+        utilities/blob_db/blob_log_writer.cc
+        utilities/blob_db/blob_log_format.cc
        utilities/cassandra/cassandra_compaction_filter.cc
        utilities/cassandra/format.cc
        utilities/cassandra/merge_operator.cc
@@ -786,8 +688,6 @@ set(SOURCES
        utilities/debug.cc
        utilities/env_mirror.cc
        utilities/env_timed.cc
-        utilities/fault_injection_env.cc
-        utilities/fault_injection_fs.cc
        utilities/leveldb_options/leveldb_options.cc
        utilities/memory/memory_util.cc
        utilities/merge_operators/bytesxor.cc
@@ -809,8 +709,6 @@ set(SOURCES
        utilities/simulator_cache/sim_cache.cc
        utilities/table_properties_collectors/compact_on_deletion_collector.cc
        utilities/trace/file_trace_reader_writer.cc
-        utilities/transactions/lock/lock_tracker.cc
-        utilities/transactions/lock/point_lock_tracker.cc
        utilities/transactions/optimistic_transaction_db_impl.cc
        utilities/transactions/optimistic_transaction.cc
        utilities/transactions/pessimistic_transaction.cc
@@ -835,11 +733,11 @@ if(HAVE_SSE42 AND NOT MSVC)
    PROPERTIES COMPILE_FLAGS "-msse4.2 -mpclmul")
 endif()

-if(CMAKE_SYSTEM_PROCESSOR MATCHES "^(powerpc|ppc)64")
+if(HAVE_POWER8)
  list(APPEND SOURCES
    util/crc32c_ppc.c
    util/crc32c_ppc_asm.S)
-endif(CMAKE_SYSTEM_PROCESSOR MATCHES "^(powerpc|ppc)64")
+endif(HAVE_POWER8)

 if(HAS_ARMV8_CRC)
  list(APPEND SOURCES
@@ -852,13 +750,9 @@ if(WIN32)
    port/win/env_win.cc
    port/win/env_default.cc
    port/win/port_win.cc
-    port/win/win_logger.cc)
-  if(NOT MINGW)
-    # Mingw only supports std::thread when using
-    # posix threads.
-    list(APPEND SOURCES
-      port/win/win_thread.cc)
-  endif()
+    port/win/win_logger.cc
+    port/win/win_thread.cc)
+
 if(WITH_XPRESS)
  list(APPEND SOURCES
    port/win/xpress_win.cc)
@@ -905,12 +799,12 @@ else()
 endif()

 add_library(${ROCKSDB_STATIC_LIB} STATIC ${SOURCES})
-target_link_libraries(${ROCKSDB_STATIC_LIB} PRIVATE
+target_link_libraries(${ROCKSDB_STATIC_LIB}
  ${THIRDPARTY_LIBS} ${SYSTEM_LIBS})

 if(ROCKSDB_BUILD_SHARED)
  add_library(${ROCKSDB_SHARED_LIB} SHARED ${SOURCES})
-  target_link_libraries(${ROCKSDB_SHARED_LIB} PRIVATE
+  target_link_libraries(${ROCKSDB_SHARED_LIB}
    ${THIRDPARTY_LIBS} ${SYSTEM_LIBS})

  if(WIN32)
@@ -927,6 +821,7 @@ if(ROCKSDB_BUILD_SHARED)
                          LINKER_LANGUAGE CXX
                          VERSION ${rocksdb_VERSION}
                          SOVERSION ${rocksdb_VERSION_MAJOR}
+                          CXX_STANDARD 11
                          OUTPUT_NAME "rocksdb")
  endif()
 endif()
@@ -938,16 +833,6 @@ else()
 endif()

 option(WITH_JNI "build with JNI" OFF)
-# Tests are excluded from Release builds
-CMAKE_DEPENDENT_OPTION(WITH_TESTS "build with tests" ON
-  "CMAKE_BUILD_TYPE STREQUAL Debug" OFF)
-option(WITH_BENCHMARK_TOOLS "build with benchmarks" ON)
-option(WITH_CORE_TOOLS "build with ldb and sst_dump" ON)
-option(WITH_TOOLS "build with tools" ON)
-
-if(WITH_TESTS OR WITH_BENCHMARK_TOOLS OR WITH_TOOLS OR WITH_JNI OR JNI)
-  include_directories(SYSTEM ${PROJECT_SOURCE_DIR}/third-party/gtest-1.8.1/fused-src)
-endif()
 if(WITH_JNI OR JNI)
  message(STATUS "JNI library is enabled")
  add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/java)
@@ -985,8 +870,6 @@ if(NOT WIN32 OR ROCKSDB_INSTALL_ON_WINDOWS)

  install(DIRECTORY include/rocksdb COMPONENT devel DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}")

-  install(DIRECTORY "${PROJECT_SOURCE_DIR}/cmake/modules" COMPONENT devel DESTINATION ${package_config_destination})
-
  install(
    TARGETS ${ROCKSDB_STATIC_LIB}
    EXPORT RocksDBTargets
@@ -1023,30 +906,18 @@ if(NOT WIN32 OR ROCKSDB_INSTALL_ON_WINDOWS)
  )
 endif()

-option(WITH_ALL_TESTS "Build all test, rather than a small subset" ON)
-
-if(WITH_TESTS OR WITH_BENCHMARK_TOOLS)
-  add_subdirectory(third-party/gtest-1.8.1/fused-src/gtest)
-  add_library(testharness STATIC
-  test_util/mock_time_env.cc
+add_subdirectory(third-party/gtest-1.8.1/fused-src/gtest)
+add_library(testharness STATIC
  test_util/testharness.cc)
-  target_link_libraries(testharness gtest)
-endif()
+target_link_libraries(testharness gtest)

+# Tests are excluded from Release builds
+CMAKE_DEPENDENT_OPTION(WITH_TESTS "build with tests" ON
+  "CMAKE_BUILD_TYPE STREQUAL Debug" OFF)
 if(WITH_TESTS)
  set(TESTS
-        db/db_basic_test.cc
-        env/env_basic_test.cc
-  )
-  if(WITH_ALL_TESTS)
-    list(APPEND TESTS
        cache/cache_test.cc
        cache/lru_cache_test.cc
-        db/blob/blob_file_addition_test.cc
-        db/blob/blob_file_builder_test.cc
-        db/blob/blob_file_garbage_test.cc
-        db/blob/blob_file_reader_test.cc
-        db/blob/db_blob_index_test.cc
        db/column_family_test.cc
        db/compact_files_test.cc
        db/compaction/compaction_job_stats_test.cc
@@ -1056,7 +927,8 @@ if(WITH_TESTS)
        db/comparator_db_test.cc
        db/corruption_test.cc
        db/cuckoo_table_db_test.cc
-        db/db_with_timestamp_basic_test.cc
+        db/db_basic_test.cc
+        db/db_blob_index_test.cc
        db/db_block_cache_test.cc
        db/db_bloom_filter_test.cc
        db/db_compaction_filter_test.cc
@@ -1082,14 +954,12 @@ if(WITH_TESTS)
        db/db_tailing_iter_test.cc
        db/db_test.cc
        db/db_test2.cc
-        db/db_logical_block_size_cache_test.cc
        db/db_universal_compaction_test.cc
        db/db_wal_test.cc
-        db/db_with_timestamp_compaction_test.cc
        db/db_write_test.cc
        db/dbformat_test.cc
        db/deletefile_test.cc
-        db/error_handler_fs_test.cc
+        db/error_handler_test.cc
        db/obsolete_files_test.cc
        db/external_sst_file_basic_test.cc
        db/external_sst_file_test.cc
@@ -1105,7 +975,6 @@ if(WITH_TESTS)
        db/merge_test.cc
        db/options_file_test.cc
        db/perf_context_test.cc
-        db/periodic_work_scheduler_test.cc
        db/plain_table_db_test.cc
        db/prefix_test.cc
        db/range_del_aggregator_test.cc
@@ -1116,21 +985,17 @@ if(WITH_TESTS)
        db/version_edit_test.cc
        db/version_set_test.cc
        db/wal_manager_test.cc
-        db/wal_edit_test.cc
        db/write_batch_test.cc
        db/write_callback_test.cc
        db/write_controller_test.cc
+        env/env_basic_test.cc
        env/env_test.cc
-        env/io_posix_test.cc
        env/mock_env_test.cc
        file/delete_scheduler_test.cc
-        file/prefetch_test.cc
-        file/random_access_file_reader_test.cc
        logging/auto_roll_logger_test.cc
        logging/env_logger_test.cc
        logging/event_logger_test.cc
        memory/arena_test.cc
-        memory/memkind_kmem_allocator_test.cc
        memtable/inlineskiplist_test.cc
        memtable/skiplist_test.cc
        memtable/write_buffer_manager_test.cc
@@ -1138,11 +1003,9 @@ if(WITH_TESTS)
        monitoring/iostats_context_test.cc
        monitoring/statistics_test.cc
        monitoring/stats_history_test.cc
-        options/configurable_test.cc
        options/options_settable_test.cc
        options/options_test.cc
        table/block_based/block_based_filter_block_test.cc
-        table/block_based/block_based_table_reader_test.cc
        table/block_based/block_test.cc
        table/block_based/data_block_hash_index_test.cc
        table/block_based/full_filter_block_test.cc
@@ -1153,11 +1016,7 @@ if(WITH_TESTS)
        table/merger_test.cc
        table/sst_file_reader_test.cc
        table/table_test.cc
-        table/block_fetcher_test.cc
-        test_util/testutil_test.cc
-        trace_replay/io_tracer_test.cc
        tools/block_cache_analyzer/block_cache_trace_analyzer_test.cc
-        tools/io_tracer_parser_test.cc
        tools/ldb_cmd_test.cc
        tools/reduce_levels_test.cc
        tools/sst_dump_test.cc
@@ -1166,7 +1025,6 @@ if(WITH_TESTS)
        util/bloom_test.cc
        util/coding_test.cc
        util/crc32c_test.cc
-        util/defer_test.cc
        util/dynamic_bloom_test.cc
        util/file_reader_writer_test.cc
        util/filelock_test.cc
@@ -1175,13 +1033,10 @@ if(WITH_TESTS)
        util/random_test.cc
        util/rate_limiter_test.cc
        util/repeatable_thread_test.cc
-        util/slice_test.cc
        util/slice_transform_test.cc
        util/timer_queue_test.cc
-        util/timer_test.cc
        util/thread_list_test.cc
        util/thread_local_test.cc
-        util/work_queue_test.cc
        utilities/backupable/backupable_db_test.cc
        utilities/blob_db/blob_db_test.cc
        utilities/cassandra/cassandra_functional_test.cc
@@ -1201,13 +1056,11 @@ if(WITH_TESTS)
        utilities/table_properties_collectors/compact_on_deletion_collector_test.cc
        utilities/transactions/optimistic_transaction_test.cc
        utilities/transactions/transaction_test.cc
-        utilities/transactions/transaction_lock_mgr_test.cc
        utilities/transactions/write_prepared_transaction_test.cc
        utilities/transactions/write_unprepared_transaction_test.cc
        utilities/ttl/ttl_test.cc
        utilities/write_batch_with_index/write_batch_with_index_test.cc
-    )
-  endif()
+  )
  if(WITH_LIBRADOS)
    list(APPEND TESTS utilities/env_librados_test.cc)
  endif()
@@ -1220,6 +1073,7 @@ if(WITH_TESTS)
      db/db_test_util.cc
      monitoring/thread_status_updater_debug.cc
      table/mock_table.cc
+      test_util/fault_injection_test_env.cc
      utilities/cassandra/test_utils.cc
  )
  enable_testing()
@@ -1234,7 +1088,7 @@ if(WITH_TESTS)
        PROPERTIES EXCLUDE_FROM_DEFAULT_BUILD_RELEASE 1
        EXCLUDE_FROM_DEFAULT_BUILD_MINRELEASE 1
        EXCLUDE_FROM_DEFAULT_BUILD_RELWITHDEBINFO 1
-  )
+        )

  foreach(sourcefile ${TESTS})
      get_filename_component(exename ${sourcefile} NAME_WE)
@@ -1244,16 +1098,12 @@ if(WITH_TESTS)
        EXCLUDE_FROM_DEFAULT_BUILD_MINRELEASE 1
        EXCLUDE_FROM_DEFAULT_BUILD_RELWITHDEBINFO 1
        OUTPUT_NAME ${exename}${ARTIFACT_SUFFIX}
-      )
-      target_link_libraries(${CMAKE_PROJECT_NAME}_${exename}${ARTIFACT_SUFFIX} testutillib${ARTIFACT_SUFFIX} testharness gtest ${THIRDPARTY_LIBS} ${ROCKSDB_LIB})
+        )
+      target_link_libraries(${CMAKE_PROJECT_NAME}_${exename}${ARTIFACT_SUFFIX} testutillib${ARTIFACT_SUFFIX} testharness gtest ${ROCKSDB_LIB})
      if(NOT "${exename}" MATCHES "db_sanity_test")
        add_test(NAME ${exename} COMMAND ${exename}${ARTIFACT_SUFFIX})
        add_dependencies(check ${CMAKE_PROJECT_NAME}_${exename}${ARTIFACT_SUFFIX})
      endif()
-      if("${exename}" MATCHES "env_librados_test")
-        # env_librados_test.cc uses librados directly
-        target_link_libraries(${CMAKE_PROJECT_NAME}_${exename}${ARTIFACT_SUFFIX} rados)
-      endif()
  endforeach(sourcefile ${TESTS})

  if(WIN32)
@@ -1269,64 +1119,57 @@ if(WITH_TESTS)

  if(ROCKSDB_LIB_FOR_C)
    set(C_TESTS db/c_test.c)
+    # C executables must link to a shared object
    add_executable(c_test db/c_test.c)
-    target_link_libraries(c_test ${ROCKSDB_LIB_FOR_C} testharness)
+    target_link_libraries(c_test ${ROCKSDB_SHARED_LIB} testharness)
    add_test(NAME c_test COMMAND c_test${ARTIFACT_SUFFIX})
    add_dependencies(check c_test)
  endif()
 endif()

+option(WITH_BENCHMARK_TOOLS "build with benchmarks" ON)
 if(WITH_BENCHMARK_TOOLS)
  add_executable(db_bench
    tools/db_bench.cc
    tools/db_bench_tool.cc)
  target_link_libraries(db_bench
-    ${ROCKSDB_LIB} ${THIRDPARTY_LIBS})
+    ${ROCKSDB_LIB})

  add_executable(cache_bench
    cache/cache_bench.cc)
  target_link_libraries(cache_bench
-    ${ROCKSDB_LIB} ${GFLAGS_LIB})
+    ${ROCKSDB_LIB})

  add_executable(memtablerep_bench
    memtable/memtablerep_bench.cc)
  target_link_libraries(memtablerep_bench
-    ${ROCKSDB_LIB} ${GFLAGS_LIB})
+    ${ROCKSDB_LIB})

  add_executable(range_del_aggregator_bench
    db/range_del_aggregator_bench.cc)
  target_link_libraries(range_del_aggregator_bench
-    ${ROCKSDB_LIB} ${GFLAGS_LIB})
+    ${ROCKSDB_LIB})

  add_executable(table_reader_bench
    table/table_reader_bench.cc)
  target_link_libraries(table_reader_bench
-    ${ROCKSDB_LIB} testharness ${GFLAGS_LIB})
+    ${ROCKSDB_LIB} testharness)

  add_executable(filter_bench
    util/filter_bench.cc)
  target_link_libraries(filter_bench
-    ${ROCKSDB_LIB} ${GFLAGS_LIB})
+    ${ROCKSDB_LIB})

  add_executable(hash_table_bench
    utilities/persistent_cache/hash_table_bench.cc)
  target_link_libraries(hash_table_bench
-    ${ROCKSDB_LIB} ${GFLAGS_LIB})
-endif()
-
-if(WITH_CORE_TOOLS OR WITH_TOOLS)
-  add_subdirectory(tools)
-  add_custom_target(core_tools
-    DEPENDS ${core_tool_deps})
+    ${ROCKSDB_LIB})
 endif()

+option(WITH_TOOLS "build with tools" ON)
 if(WITH_TOOLS)
+  add_subdirectory(tools)
  add_subdirectory(db_stress_tool)
  add_custom_target(tools
    DEPENDS ${tool_deps})
 endif()
-
-option(WITH_EXAMPLES "build with examples" OFF)
-if(WITH_EXAMPLES)
-  add_subdirectory(examples)
-endif()
@@ -1,235 +1,7 @@
 # Rocksdb Change Log
 ## Unreleased
-### Bug Fixes
-* Fixed a bug in the following combination of features: indexes with user keys (`format_version >= 3`), indexes are partitioned (`index_type == kTwoLevelIndexSearch`), and some index partitions are pinned in memory (`BlockBasedTableOptions::pin_l0_filter_and_index_blocks_in_cache`). The bug could cause keys to be truncated when read from the index leading to wrong read results or other unexpected behavior.
-* Fixed a bug when indexes are partitioned (`index_type == kTwoLevelIndexSearch`), some index partitions are pinned in memory (`BlockBasedTableOptions::pin_l0_filter_and_index_blocks_in_cache`), and partitions reads could be mixed between block cache and directly from the file (e.g., with `enable_index_compression == 1` and `mmap_read == 1`, partitions that were stored uncompressed due to poor compression ratio would be read directly from the file via mmap, while partitions that were stored compressed would be read from block cache). The bug could cause index partitions to be mistakenly considered empty during reads leading to wrong read results.
-* Since 6.12, memtable lookup should report unrecognized value_type as corruption (#7121).
-* Since 6.14, fix false positive flush/compaction `Status::Corruption` failure when `paranoid_file_checks == true` and range tombstones were written to the compaction output files.
-
-### Public API Change
-* Deprecate `BlockBasedTableOptions::pin_l0_filter_and_index_blocks_in_cache` and `BlockBasedTableOptions::pin_top_level_index_and_filter`. These options still take effect until users migrate to the replacement APIs in `BlockBasedTableOptions::metadata_cache_options`. Migration guidance can be found in the API comments on the deprecated options.
-
-## 6.14 (10/09/2020)
-### Bug fixes
-* Fixed a bug after a `CompactRange()` with `CompactRangeOptions::change_level` set fails due to a conflict in the level change step, which caused all subsequent calls to `CompactRange()` with `CompactRangeOptions::change_level` set to incorrectly fail with a `Status::NotSupported("another thread is refitting")` error.
-* Fixed a bug that the bottom most level compaction could still be a trivial move even if `BottommostLevelCompaction.kForce` or `kForceOptimized` is set.
-
-### Public API Change
-* The methods to create and manage EncrypedEnv have been changed.  The EncryptionProvider is now passed to NewEncryptedEnv as a shared pointer, rather than a raw pointer.  Comparably, the CTREncryptedProvider now takes a shared pointer, rather than a reference, to a BlockCipher.  CreateFromString methods have been added to BlockCipher and EncryptionProvider to provide a single API by which different ciphers and providers can be created, respectively.
-* The internal classes (CTREncryptionProvider, ROT13BlockCipher, CTRCipherStream) associated with the EncryptedEnv have been moved out of the public API.  To create a CTREncryptionProvider, one can either use EncryptionProvider::NewCTRProvider, or EncryptionProvider::CreateFromString("CTR").  To create a new ROT13BlockCipher, one can either use BlockCipher::NewROT13Cipher or BlockCipher::CreateFromString("ROT13").
-* The EncryptionProvider::AddCipher method has been added to allow keys to be added to an EncryptionProvider.  This API will allow future providers to support multiple cipher keys.
-* Add a new option "allow_data_in_errors". When this new option is set by users, it allows users to opt-in to get error messages containing corrupted keys/values. Corrupt keys, values will be logged in the messages, logs, status etc. that will help users with the useful information regarding affected data. By default value of this option is set false to prevent users data to be exposed in the messages so currently, data will be redacted from logs, messages, status by default.
-* AdvancedColumnFamilyOptions::force_consistency_checks is now true by default, for more proactive DB corruption detection at virtually no cost (estimated two extra CPU cycles per million on a major production workload). Corruptions reported by these checks now mention "force_consistency_checks" in case a false positive corruption report is suspected and the option needs to be disabled (unlikely). Since existing column families have a saved setting for force_consistency_checks, only new column families will pick up the new default.
-
-### General Improvements
-* The settings of the DBOptions and ColumnFamilyOptions are now managed by Configurable objects (see New Features).  The same convenience methods to configure these options still exist but the backend implementation has been unified under a common implementation.
-
-### New Features
-* Methods to configure serialize, and compare -- such as TableFactory -- are exposed directly through the Configurable base class (from which these objects inherit).  This change will allow for better and more thorough configuration management and retrieval in the future.  The options for a Configurable object can be set via the ConfigureFromMap, ConfigureFromString, or ConfigureOption method.  The serialized version of the options of an object can be retrieved via the GetOptionString, ToString, or GetOption methods.  The list of options supported by an object can be obtained via the GetOptionNames method.  The "raw" object (such as the BlockBasedTableOption) for an option may be retrieved via the GetOptions method.  Configurable options can be compared via the AreEquivalent method.  The settings within a Configurable object may be validated via the ValidateOptions method.  The object may be intialized (at which point only mutable options may be updated) via the PrepareOptions method.
-* Introduce options.check_flush_compaction_key_order with default value to be true. With this option, during flush and compaction, key order will be checked when writing to each SST file. If the order is violated, the flush or compaction will fail.
-* Added is_full_compaction to CompactionJobStats, so that the information is available through the EventListener interface.
-* Add more stats for MultiGet in Histogram to get number of data blocks, index blocks, filter blocks and sst files read from file system per level.
-
-## 6.13 (09/12/2020)
-### Bug fixes
-* Fix a performance regression introduced in 6.4 that makes a upper bound check for every Next() even if keys are within a data block that is within the upper bound.
-* Fix a possible corruption to the LSM state (overlapping files within a level) when a `CompactRange()` for refitting levels (`CompactRangeOptions::change_level == true`) and another manual compaction are executed in parallel.
-* Sanitize `recycle_log_file_num` to zero when the user attempts to enable it in combination with `WALRecoveryMode::kTolerateCorruptedTailRecords`. Previously the two features were allowed together, which compromised the user's configured crash-recovery guarantees.
-* Fix a bug where a level refitting in CompactRange() might race with an automatic compaction that puts the data to the target level of the refitting. The bug has been there for years.
-* Fixed a bug in version 6.12 in which BackupEngine::CreateNewBackup could fail intermittently with non-OK status when backing up a read-write DB configured with a DBOptions::file_checksum_gen_factory.
-* Fix useless no-op compactions scheduled upon snapshot release when options.disable-auto-compactions = true.
-* Fix a bug when max_write_buffer_size_to_maintain is set, immutable flushed memtable destruction is delayed until the next super version is installed. A memtable is not added to delete list because of its reference hold by super version and super version doesn't switch because of empt delete list. So memory usage keeps on increasing beyond write_buffer_size + max_write_buffer_size_to_maintain.
-* Avoid converting MERGES to PUTS when allow_ingest_behind is true.
-* Fix compression dictionary sampling together with `SstFileWriter`. Previously, the dictionary would be trained/finalized immediately with zero samples. Now, the whole `SstFileWriter` file is buffered in memory and then sampled.
-* Fix a bug with `avoid_unnecessary_blocking_io=1` and creating backups (BackupEngine::CreateNewBackup) or checkpoints (Checkpoint::Create). With this setting and WAL enabled, these operations could randomly fail with non-OK status.
-* Fix a bug in which bottommost compaction continues to advance the underlying InternalIterator to skip tombstones even after shutdown.
-
-### New Features
-* A new field `std::string requested_checksum_func_name` is added to `FileChecksumGenContext`, which enables the checksum factory to create generators for a suite of different functions.
-* Added a new subcommand, `ldb unsafe_remove_sst_file`, which removes a lost or corrupt SST file from a DB's metadata. This command involves data loss and must not be used on a live DB.
-
-### Performance Improvements
-* Reduce thread number for multiple DB instances by re-using one global thread for statistics dumping and persisting.
-* Reduce write-amp in heavy write bursts in `kCompactionStyleLevel` compaction style with `level_compaction_dynamic_level_bytes` set.
-* BackupEngine incremental backups no longer read DB table files that are already saved to a shared part of the backup directory, unless `share_files_with_checksum` is used with `kLegacyCrc32cAndFileSize` naming (discouraged).
-  * For `share_files_with_checksum`, we are confident there is no regression (vs. pre-6.12) in detecting DB or backup corruption at backup creation time, mostly because the old design did not leverage this extra checksum computation for detecting inconsistencies at backup creation time.
-  * For `share_table_files` without "checksum" (not recommended), there is a regression in detecting fundamentally unsafe use of the option, greatly mitigated by file size checking (under "Behavior Changes"). Almost no reason to use `share_files_with_checksum=false` should remain.
-  * `DB::VerifyChecksum` and `BackupEngine::VerifyBackup` with checksum checking are still able to catch corruptions that `CreateNewBackup` does not.
-
-### Public API Change
-* Expose kTypeDeleteWithTimestamp in EntryType and update GetEntryType() accordingly.
-* Added file_checksum and file_checksum_func_name to TableFileCreationInfo, which can pass the table file checksum information through the OnTableFileCreated callback during flush and compaction.
-* A warning is added to `DB::DeleteFile()` API describing its known problems and deprecation plan.
-* Add a new stats level, i.e. StatsLevel::kExceptTickers (PR7329) to exclude tickers even if application passes a non-null Statistics object.
-* Added a new status code IOStatus::IOFenced() for the Env/FileSystem to indicate that writes from this instance are fenced off. Like any other background error, this error is returned to the user in Put/Merge/Delete/Flush calls and can be checked using Status::IsIOFenced().
-
-### Behavior Changes
-* File abstraction `FSRandomAccessFile.Prefetch()` default return status is changed from `OK` to `NotSupported`. If the user inherited file doesn't implement prefetch, RocksDB will create internal prefetch buffer to improve read performance.
-* When retryabel IO error happens during Flush (manifest write error is excluded) and WAL is disabled, originally it is mapped to kHardError. Now,it is mapped to soft error. So DB will not stall the writes unless the memtable is full. At the same time, when auto resume is triggered to recover the retryable IO error during Flush, SwitchMemtable is not called to avoid generating to many small immutable memtables. If WAL is enabled, no behavior changes.
-* When considering whether a table file is already backed up in a shared part of backup directory, BackupEngine would already query the sizes of source (DB) and pre-existing destination (backup) files. BackupEngine now uses these file sizes to detect corruption, as at least one of (a) old backup, (b) backup in progress, or (c) current DB is corrupt if there's a size mismatch.
-
-### Others
-* Error in prefetching partitioned index blocks will not be swallowed. It will fail the query and return the IOError users.
-
-## 6.12 (2020-07-28)
-### Public API Change
-* Encryption file classes now exposed for inheritance in env_encryption.h
-* File I/O listener is extended to cover more I/O operations. Now class `EventListener` in listener.h contains new callback functions: `OnFileFlushFinish()`, `OnFileSyncFinish()`, `OnFileRangeSyncFinish()`, `OnFileTruncateFinish()`, and ``OnFileCloseFinish()``.
-* `FileOperationInfo` now reports `duration` measured by `std::chrono::steady_clock` and `start_ts` measured by `std::chrono::system_clock` instead of start and finish timestamps measured by `system_clock`. Note that `system_clock` is called before `steady_clock` in program order at operation starts.
-* `DB::GetDbSessionId(std::string& session_id)` is added. `session_id` stores a unique identifier that gets reset every time the DB is opened. This DB session ID should be unique among all open DB instances on all hosts, and should be unique among re-openings of the same or other DBs. This identifier is recorded in the LOG file on the line starting with "DB Session ID:".
-* `DB::OpenForReadOnly()` now returns `Status::NotFound` when the specified DB directory does not exist. Previously the error returned depended on the underlying `Env`. This change is available in all 6.11 releases as well.
-* A parameter `verify_with_checksum` is added to `BackupEngine::VerifyBackup`, which is false by default. If it is ture, `BackupEngine::VerifyBackup` verifies checksums and file sizes of backup files. Pass `false` for `verify_with_checksum` to maintain the previous behavior and performance of `BackupEngine::VerifyBackup`, by only verifying sizes of backup files.
-
-### Behavior Changes
-* Best-efforts recovery ignores CURRENT file completely. If CURRENT file is missing during recovery, best-efforts recovery still proceeds with MANIFEST file(s).
-* In best-efforts recovery, an error that is not Corruption or IOError::kNotFound or IOError::kPathNotFound will be overwritten silently. Fix this by checking all non-ok cases and return early.
-* When `file_checksum_gen_factory` is set to `GetFileChecksumGenCrc32cFactory()`, BackupEngine will compare the crc32c checksums of table files computed when creating a backup to the expected checksums stored in the DB manifest, and will fail `CreateNewBackup()` on mismatch (corruption). If the `file_checksum_gen_factory` is not set or set to any other customized factory, there is no checksum verification to detect if SST files in a DB are corrupt when read, copied, and independently checksummed by BackupEngine.
-* When a DB sets `stats_dump_period_sec > 0`, either as the initial value for DB open or as a dynamic option change, the first stats dump is staggered in the following X seconds, where X is an integer in `[0, stats_dump_period_sec)`. Subsequent stats dumps are still spaced `stats_dump_period_sec` seconds apart.
-* When the paranoid_file_checks option is true, a hash is generated of all keys and values are generated when the SST file is written, and then the values are read back in to validate the file.  A corruption is signaled if the two hashes do not match.
-
-### Bug fixes
-* Compressed block cache was automatically disabled with read-only DBs by mistake. Now it is fixed: compressed block cache will be in effective with read-only DB too.
-* Fix a bug of wrong iterator result if another thread finishes an update and a DB flush between two statement.
-* Disable file deletion after MANIFEST write/sync failure until db re-open or Resume() so that subsequent re-open will not see MANIFEST referencing deleted SSTs.
-* Fix a bug when index_type == kTwoLevelIndexSearch in PartitionedIndexBuilder to update FlushPolicy to point to internal key partitioner when it changes from user-key mode to internal-key mode in index partition.
-* Make compaction report InternalKey corruption while iterating over the input.
-* Fix a bug which may cause MultiGet to be slow because it may read more data than requested, but this won't affect correctness. The bug was introduced in 6.10 release.
-* Fail recovery and report once hitting a physical log record checksum mismatch, while reading MANIFEST. RocksDB should not continue processing the MANIFEST any further.
-* Fixed a bug in size-amp-triggered and periodic-triggered universal compaction, where the compression settings for the first input level were used rather than the compression settings for the output (bottom) level.
-
-### New Features
-* DB identity (`db_id`) and DB session identity (`db_session_id`) are added to table properties and stored in SST files. SST files generated from SstFileWriter and Repairer have DB identity “SST Writer” and “DB Repairer”, respectively. Their DB session IDs are generated in the same way as `DB::GetDbSessionId`. The session ID for SstFileWriter (resp., Repairer) resets every time `SstFileWriter::Open` (resp., `Repairer::Run`) is called.
-* Added experimental option BlockBasedTableOptions::optimize_filters_for_memory for reducing allocated memory size of Bloom filters (~10% savings with Jemalloc) while preserving the same general accuracy. To have an effect, the option requires format_version=5 and malloc_usable_size. Enabling this option is forward and backward compatible with existing format_version=5.
-* `BackupableDBOptions::share_files_with_checksum_naming` is added with new default behavior for naming backup files with `share_files_with_checksum`, to address performance and backup integrity issues. See API comments for details.
-* Added auto resume function to automatically recover the DB from background Retryable IO Error. When retryable IOError happens during flush and WAL write, the error is mapped to Hard Error and DB will be in read mode. When retryable IO Error happens during compaction, the error will be mapped to Soft Error. DB is still in write/read mode. Autoresume function will create a thread for a DB to call DB->ResumeImpl() to try the recover for Retryable IO Error during flush and WAL write. Compaction will be rescheduled by itself if retryable IO Error happens. Auto resume may also cause other Retryable IO Error during the recovery, so the recovery will fail. Retry the auto resume may solve the issue, so we use max_bgerror_resume_count to decide how many resume cycles will be tried in total. If it is <=0, auto resume retryable IO Error is disabled. Default is INT_MAX, which will lead to a infinit auto resume. bgerror_resume_retry_interval decides the time interval between two auto resumes.
-* Option `max_subcompactions` can be set dynamically using DB::SetDBOptions().
-* Added experimental ColumnFamilyOptions::sst_partitioner_factory to define determine the partitioning of sst files. This helps compaction to split the files on interesting boundaries (key prefixes) to make propagation of sst files less write amplifying (covering the whole key space).
-
-### Performance Improvements
-* Eliminate key copies for internal comparisons while accessing ingested block-based tables.
-* Reduce key comparisons during random access in all block-based tables.
-* BackupEngine avoids unnecessary repeated checksum computation for backing up a table file to the `shared_checksum` directory when using `share_files_with_checksum_naming = kUseDbSessionId` (new default), except on SST files generated before this version of RocksDB, which fall back on using `kLegacyCrc32cAndFileSize`.
-
-## 6.11 (6/12/2020)
-### Bug Fixes
-* Fix consistency checking error swallowing in some cases when options.force_consistency_checks = true.
-* Fix possible false NotFound status from batched MultiGet using index type kHashSearch.
-* Fix corruption caused by enabling delete triggered compaction (NewCompactOnDeletionCollectorFactory) in universal compaction mode, along with parallel compactions. The bug can result in two parallel compactions picking the same input files, resulting in the DB resurrecting older and deleted versions of some keys.
-* Fix a use-after-free bug in best-efforts recovery. column_family_memtables_ needs to point to valid ColumnFamilySet.
-* Let best-efforts recovery ignore corrupted files during table loading.
-* Fix corrupt key read from ingested file when iterator direction switches from reverse to forward at a key that is a prefix of another key in the same file. It is only possible in files with a non-zero global seqno.
-* Fix abnormally large estimate from GetApproximateSizes when a range starts near the end of one SST file and near the beginning of another. Now GetApproximateSizes consistently and fairly includes the size of SST metadata in addition to data blocks, attributing metadata proportionally among the data blocks based on their size.
-* Fix potential file descriptor leakage in PosixEnv's IsDirectory() and NewRandomAccessFile().
-* Fix false negative from the VerifyChecksum() API when there is a checksum mismatch in an index partition block in a BlockBasedTable format table file (index_type is kTwoLevelIndexSearch).
-* Fix sst_dump to return non-zero exit code if the specified file is not a recognized SST file or fails requested checks.
-* Fix incorrect results from batched MultiGet for duplicate keys, when the duplicate key matches the largest key of an SST file and the value type for the key in the file is a merge value.
-
-### Public API Change
-* Flush(..., column_family) may return Status::ColumnFamilyDropped() instead of Status::InvalidArgument() if column_family is dropped while processing the flush request.
-* BlobDB now explicitly disallows using the default column family's storage directories as blob directory.
-* DeleteRange now returns `Status::InvalidArgument` if the range's end key comes before its start key according to the user comparator. Previously the behavior was undefined.
-* ldb now uses options.force_consistency_checks = true by default and "--disable_consistency_checks" is added to disable it.
-* DB::OpenForReadOnly no longer creates files or directories if the named DB does not exist, unless create_if_missing is set to true.
-* The consistency checks that validate LSM state changes (table file additions/deletions during flushes and compactions) are now stricter, more efficient, and no longer optional, i.e. they are performed even if `force_consistency_checks` is `false`.
-* Disable delete triggered compaction (NewCompactOnDeletionCollectorFactory) in universal compaction mode and num_levels = 1 in order to avoid a corruption bug.
-* `pin_l0_filter_and_index_blocks_in_cache` no longer applies to L0 files larger than `1.5 * write_buffer_size` to give more predictable memory usage. Such L0 files may exist due to intra-L0 compaction, external file ingestion, or user dynamically changing `write_buffer_size` (note, however, that files that are already pinned will continue being pinned, even after such a dynamic change).
-* In point-in-time wal recovery mode, fail database recovery in case of IOError while reading the WAL to avoid data loss.
-* A new method `Env::LowerThreadPoolCPUPriority(Priority, CpuPriority)` is added to `Env` to be able to lower to a specific priority such as `CpuPriority::kIdle`.
-
-### New Features
-* sst_dump to add a new --readahead_size argument. Users can specify read size when scanning the data. Sst_dump also tries to prefetch tail part of the SST files so usually some number of I/Os are saved there too.
-* Generate file checksum in SstFileWriter if Options.file_checksum_gen_factory is set. The checksum and checksum function name are stored in ExternalSstFileInfo after the sst file write is finished.
-* Add a value_size_soft_limit in read options which limits the cumulative value size of keys read in batches in MultiGet. Once the cumulative value size of found keys exceeds read_options.value_size_soft_limit, all the remaining keys are returned with status Abort without further finding their values. By default the value_size_soft_limit is std::numeric_limits<uint64_t>::max().
-* Enable SST file ingestion with file checksum information when calling IngestExternalFiles(const std::vector<IngestExternalFileArg>& args). Added files_checksums and files_checksum_func_names to IngestExternalFileArg such that user can ingest the sst files with their file checksum information. Added verify_file_checksum to IngestExternalFileOptions (default is True). To be backward compatible, if DB does not enable file checksum or user does not provide checksum information (vectors of files_checksums and files_checksum_func_names are both empty), verification of file checksum is always sucessful. If DB enables file checksum, DB will always generate the checksum for each ingested SST file during Prepare stage of ingestion and store the checksum in Manifest, unless verify_file_checksum is False and checksum information is provided by the application. In this case, we only verify the checksum function name and directly store the ingested checksum in Manifest. If verify_file_checksum is set to True, DB will verify the ingested checksum and function name with the genrated ones. Any mismatch will fail the ingestion. Note that, if IngestExternalFileOptions::write_global_seqno is True, the seqno will be changed in the ingested file. Therefore, the checksum of the file will be changed. In this case, a new checksum will be generated after the seqno is updated and be stored in the Manifest.
-
-### Performance Improvements
-* Eliminate redundant key comparisons during random access in block-based tables.
-
-## 6.10 (5/2/2020)
-### Bug Fixes
-* Fix wrong result being read from ingested file. May happen when a key in the file happen to be prefix of another key also in the file. The issue can further cause more data corruption. The issue exists with rocksdb >= 5.0.0 since DB::IngestExternalFile() was introduced.
-* Finish implementation of BlockBasedTableOptions::IndexType::kBinarySearchWithFirstKey. It's now ready for use. Significantly reduces read amplification in some setups, especially for iterator seeks.
-* Fix a bug by updating CURRENT file so that it points to the correct MANIFEST file after best-efforts recovery.
-* Fixed a bug where ColumnFamilyHandle objects were not cleaned up in case an error happened during BlobDB's open after the base DB had been opened.
-* Fix a potential undefined behavior caused by trying to dereference nullable pointer (timestamp argument) in DB::MultiGet.
-* Fix a bug caused by not including user timestamp in MultiGet LookupKey construction. This can lead to wrong query result since the trailing bytes of a user key, if not shorter than timestamp, will be mistaken for user timestamp.
-* Fix a bug caused by using wrong compare function when sorting the input keys of MultiGet with timestamps.
-* Upgraded version of bzip library (1.0.6 -> 1.0.8) used with RocksJava to address potential vulnerabilities if an attacker can manipulate compressed data saved and loaded by RocksDB (not normal). See issue #6703.
-
-### Public API Change
-* Add a ConfigOptions argument to the APIs dealing with converting options to and from strings and files.  The ConfigOptions is meant to replace some of the options (such as input_strings_escaped and ignore_unknown_options) and allow for more parameters to be passed in the future without changing the function signature.
-* Add NewFileChecksumGenCrc32cFactory to the file checksum public API, such that the builtin Crc32c based file checksum generator factory can be used by applications.
-* Add IsDirectory to Env and FS to indicate if a path is a directory.
-
-### New Features
-* Added support for pipelined & parallel compression optimization for `BlockBasedTableBuilder`. This optimization makes block building, block compression and block appending a pipeline, and uses multiple threads to accelerate block compression. Users can set `CompressionOptions::parallel_threads` greater than 1 to enable compression parallelism. This feature is experimental for now.
-* Provide an allocator for memkind to be used with block cache. This is to work with memory technologies (Intel DCPMM is one such technology currently available) that require different libraries for allocation and management (such as PMDK and memkind). The high capacities available make it possible to provision large caches (up to several TBs in size) beyond what is achievable with DRAM.
-* Option `max_background_flushes` can be set dynamically using DB::SetDBOptions().
-* Added functionality in sst_dump tool to check the compressed file size for different compression levels and print the time spent on compressing files with each compression type. Added arguments `--compression_level_from` and `--compression_level_to` to report size of all compression levels and one compression_type must be specified with it so that it will report compressed sizes of one compression type with different levels.
-* Added statistics for redundant insertions into block cache: rocksdb.block.cache.*add.redundant. (There is currently no coordination to ensure that only one thread loads a table block when many threads are trying to access that same table block.)
-
-### Bug Fixes
-* Fix a bug when making options.bottommost_compression, options.compression_opts and options.bottommost_compression_opts dynamically changeable: the modified values are not written to option files or returned back to users when being queried.
-* Fix a bug where index key comparisons were unaccounted in `PerfContext::user_key_comparison_count` for lookups in files written with `format_version >= 3`.
-* Fix many bloom.filter statistics not being updated in batch MultiGet.
-
-### Performance Improvements
-* Improve performance of batch MultiGet with partitioned filters, by sharing block cache lookups to applicable filter blocks.
-* Reduced memory copies when fetching and uncompressing compressed blocks from sst files.
-
-## 6.9.0 (03/29/2020)
-### Behavior changes
-* Since RocksDB 6.8, ttl-based FIFO compaction can drop a file whose oldest key becomes older than options.ttl while others have not. This fix reverts this and makes ttl-based FIFO compaction use the file's flush time as the criterion. This fix also requires that max_open_files = -1 and compaction_options_fifo.allow_compaction = false to function properly.
-
-### Public API Change
-* Fix spelling so that API now has correctly spelled transaction state name `COMMITTED`, while the old misspelled `COMMITED` is still available as an alias.
-* Updated default format_version in BlockBasedTableOptions from 2 to 4. SST files generated with the new default can be read by RocksDB versions 5.16 and newer, and use more efficient encoding of keys in index blocks.
-* A new parameter `CreateBackupOptions` is added to both `BackupEngine::CreateNewBackup` and `BackupEngine::CreateNewBackupWithMetadata`, you can decrease CPU priority of `BackupEngine`'s background threads by setting `decrease_background_thread_cpu_priority` and `background_thread_cpu_priority` in `CreateBackupOptions`.
-* Updated the public API of SST file checksum. Introduce the FileChecksumGenFactory to create the FileChecksumGenerator for each SST file, such that the FileChecksumGenerator is not shared and it can be more general for checksum implementations. Changed the FileChecksumGenerator interface from Value, Extend, and GetChecksum to Update, Finalize, and GetChecksum. Finalize should be only called once after all data is processed to generate the final checksum. Temproal data should be maintained by the FileChecksumGenerator object itself and finally it can return the checksum string.
-
-### Bug Fixes
-* Fix a bug where range tombstone blocks in ingested files were cached incorrectly during ingestion. If range tombstones were read from those incorrectly cached blocks, the keys they covered would be exposed.
-* Fix a data race that might cause crash when calling DB::GetCreationTimeOfOldestFile() by a small chance. The bug was introduced in 6.6 Release.
-* Fix a bug where a boolean value optimize_filters_for_hits was for max threads when calling load table handles after a flush or compaction. The value is correct to 1. The bug should not cause user visible problems.
-* Fix a bug which might crash the service when write buffer manager fails to insert the dummy handle to the block cache.
-
-### Performance Improvements
-* In CompactRange, for levels starting from 0, if the level does not have any file with any key falling in the specified range, the level is skipped. So instead of always compacting from level 0, the compaction starts from the first level with keys in the specified range until the last such level.
-* Reduced memory copy when reading sst footer and blobdb in direct IO mode.
-* When restarting a database with large numbers of sst files, large amount of CPU time is spent on getting logical block size of the sst files, which slows down the starting progress, this inefficiency is optimized away with an internal cache for the logical block sizes.
-
-### New Features
-* Basic support for user timestamp in iterator. Seek/SeekToFirst/Next and lower/upper bounds are supported. Reverse iteration is not supported. Merge is not considered.
-* When file lock failure when the lock is held by the current process, return acquiring time and thread ID in the error message.
-* Added a new option, best_efforts_recovery (default: false), to allow database to open in a db dir with missing table files. During best efforts recovery, missing table files are ignored, and database recovers to the most recent state without missing table file. Cross-column-family consistency is not guaranteed even if WAL is enabled.
-* options.bottommost_compression, options.compression_opts and options.bottommost_compression_opts are now dynamically changeable.
-
-## 6.8.0 (02/24/2020)
-### Java API Changes
-* Major breaking changes to Java comparators, toward standardizing on ByteBuffer for performant, locale-neutral operations on keys (#6252).
-* Added overloads of common API methods using direct ByteBuffers for keys and values (#2283).
-
 ### Bug Fixes
 * Fix incorrect results while block-based table uses kHashSearch, together with Prev()/SeekForPrev().
-* Fix a bug that prevents opening a DB after two consecutive crash with TransactionDB, where the first crash recovers from a corrupted WAL with kPointInTimeRecovery but the second cannot.
-* Fixed issue #6316 that can cause a corruption of the MANIFEST file in the middle when writing to it fails due to no disk space.
-* Add DBOptions::skip_checking_sst_file_sizes_on_db_open. It disables potentially expensive checking of all sst file sizes in DB::Open().
-* BlobDB now ignores trivially moved files when updating the mapping between blob files and SSTs. This should mitigate issue #6338 where out of order flush/compaction notifications could trigger an assertion with the earlier code.
-* Batched MultiGet() ignores IO errors while reading data blocks, causing it to potentially continue looking for a key and returning stale results.
-* `WriteBatchWithIndex::DeleteRange` returns `Status::NotSupported`. Previously it returned success even though reads on the batch did not account for range tombstones. The corresponding language bindings now cannot be used. In C, that includes `rocksdb_writebatch_wi_delete_range`, `rocksdb_writebatch_wi_delete_range_cf`, `rocksdb_writebatch_wi_delete_rangev`, and `rocksdb_writebatch_wi_delete_rangev_cf`. In Java, that includes `WriteBatchWithIndex::deleteRange`.
-* Assign new MANIFEST file number when caller tries to create a new MANIFEST by calling LogAndApply(..., new_descriptor_log=true). This bug can cause MANIFEST being overwritten during recovery if options.write_dbid_to_manifest = true and there are WAL file(s).
-
-### Performance Improvements
-* Perfom readahead when reading from option files. Inside DB, options.log_readahead_size will be used as the readahead size. In other cases, a default 512KB is used.
-
-### Public API Change
-* The BlobDB garbage collector now emits the statistics `BLOB_DB_GC_NUM_FILES` (number of blob files obsoleted during GC), `BLOB_DB_GC_NUM_NEW_FILES` (number of new blob files generated during GC), `BLOB_DB_GC_FAILURES` (number of failed GC passes), `BLOB_DB_GC_NUM_KEYS_RELOCATED` (number of blobs relocated during GC), and `BLOB_DB_GC_BYTES_RELOCATED` (total size of blobs relocated during GC). On the other hand, the following statistics, which are not relevant for the new GC implementation, are now deprecated: `BLOB_DB_GC_NUM_KEYS_OVERWRITTEN`, `BLOB_DB_GC_NUM_KEYS_EXPIRED`, `BLOB_DB_GC_BYTES_OVERWRITTEN`, `BLOB_DB_GC_BYTES_EXPIRED`, and `BLOB_DB_GC_MICROS`.
-* Disable recycle_log_file_num when an inconsistent recovery modes are requested: kPointInTimeRecovery and kAbsoluteConsistency
-
-### New Features
-* Added the checksum for each SST file generated by Flush or Compaction. Added sst_file_checksum_func to Options such that user can plugin their own SST file checksum function via override the FileChecksumFunc class. If user does not set the sst_file_checksum_func, SST file checksum calculation will not be enabled. The checksum information inlcuding uint32_t checksum value and a checksum function name (string). The checksum information is stored in FileMetadata in version store and also logged to MANIFEST. A new tool is added to LDB such that user can dump out a list of file checksum information from MANIFEST (stored in an unordered_map).
-* `db_bench` now supports `value_size_distribution_type`, `value_size_min`, `value_size_max` options for generating random variable sized value. Added `blob_db_compression_type` option for BlobDB to enable blob compression.
-* Replace RocksDB namespace "rocksdb" with flag "ROCKSDB_NAMESPACE" which if is not defined, defined as "rocksdb" in header file rocksdb_namespace.h.

 ## 6.7.0 (01/21/2020)
 ### Public API Change
@@ -253,8 +25,6 @@
 * It is now possible to enable periodic compactions for the base DB when using BlobDB.
 * BlobDB now garbage collects non-TTL blobs when `enable_garbage_collection` is set to `true` in `BlobDBOptions`. Garbage collection is performed during compaction: any valid blobs located in the oldest N files (where N is the number of non-TTL blob files multiplied by the value of `BlobDBOptions::garbage_collection_cutoff`) encountered during compaction get relocated to new blob files, and old blob files are dropped once they are no longer needed. Note: we recommend enabling periodic compactions for the base DB when using this feature to deal with the case when some old blob files are kept alive by SSTs that otherwise do not get picked for compaction.
 * `db_bench` now supports the `garbage_collection_cutoff` option for BlobDB.
-* Introduce ReadOptions.auto_prefix_mode. When set to true, iterator will return the same result as total order seek, but may choose to use prefix seek internally based on seek key and iterator upper bound.
-* MultiGet() can use IO Uring to parallelize read from the same SST file. This featuer is by default disabled. It can be enabled with environment variable ROCKSDB_USE_IO_URING.

 ## 6.6.2 (01/13/2020)
 ### Bug Fixes
@@ -10,9 +10,7 @@ This is the list of all known third-party language bindings for RocksDB. If some
 * Ruby - http://rubygems.org/gems/rocksdb-ruby
 * Haskell - https://hackage.haskell.org/package/rocksdb-haskell
 * PHP - https://github.com/Photonios/rocksdb-php
-* C#
-    * https://github.com/warrenfalk/rocksdb-sharp
-    * https://github.com/curiosity-ai/rocksdb-sharp
+* C# - https://github.com/warrenfalk/rocksdb-sharp
 * Rust
    * https://github.com/pingcap/rust-rocksdb (used in production fork of https://github.com/spacejam/rust-rocksdb)
    * https://github.com/spacejam/rust-rocksdb
@@ -1,8 +1,7 @@
 ## RocksDB: A Persistent Key-Value Store for Flash and RAM Storage

-[![CircleCI Status](https://circleci.com/gh/facebook/rocksdb.svg?style=svg)](https://circleci.com/gh/facebook/rocksdb)
-[![TravisCI Status](https://travis-ci.org/facebook/rocksdb.svg?branch=master)](https://travis-ci.org/facebook/rocksdb)
-[![Appveyor Build status](https://ci.appveyor.com/api/projects/status/fbgfu0so3afcno78/branch/master?svg=true)](https://ci.appveyor.com/project/Facebook/rocksdb/branch/master)
+[![Linux/Mac Build Status](https://travis-ci.org/facebook/rocksdb.svg?branch=master)](https://travis-ci.org/facebook/rocksdb)
+[![Windows Build status](https://ci.appveyor.com/api/projects/status/fbgfu0so3afcno78/branch/master?svg=true)](https://ci.appveyor.com/project/Facebook/rocksdb/branch/master)
 [![PPC64le Build Status](http://140.211.168.68:8080/buildStatus/icon?job=Rocksdb)](http://140.211.168.68:8080/job/Rocksdb)

 RocksDB is developed and maintained by Facebook Database Engineering Team.
@@ -25,7 +24,7 @@ The public interface is in `include/`.  Callers should not include or
 rely on the details of any other header files in this package.  Those
 internal APIs may be changed without warning.

-Design discussions are conducted in https://www.facebook.com/groups/rocksdb.dev/ and https://rocksdb.slack.com/
+Design discussions are conducted in https://www.facebook.com/groups/rocksdb.dev/

 ## License

@@ -1,4 +1,4 @@
-# This file @generated by `python3 buckifier/buckify_rocksdb.py`
+# This file @generated by `python buckifier/buckify_rocksdb.py`
 # --> DO NOT EDIT MANUALLY <--
 # This file is a Facebook-specific integration for buck builds, so can
 # only be validated by Facebook employees.
@@ -25,16 +25,15 @@ ROCKSDB_EXTERNAL_DEPS = [
    ("gflags", None, "gflags"),
    ("lz4", None, "lz4"),
    ("zstd", None),
+    ("tbb", None),
+    ("liburing", None, "uring"),
+    ("googletest", None, "gtest"),
 ]

 ROCKSDB_OS_DEPS = [
    (
        "linux",
-        ["third-party//numa:numa", "third-party//liburing:uring", "third-party//tbb:tbb"],
-    ),
-    (
-        "macos",
-        ["third-party//tbb:tbb"],
+        ["third-party//numa:numa"],
    ),
 ]

@@ -50,29 +49,18 @@ ROCKSDB_OS_PREPROCESSOR_FLAGS = [
            "-DROCKSDB_SCHED_GETCPU_PRESENT",
            "-DROCKSDB_IOURING_PRESENT",
            "-DHAVE_SSE42",
-            "-DLIBURING",
            "-DNUMA",
-            "-DROCKSDB_PLATFORM_POSIX",
-            "-DROCKSDB_LIB_IO_POSIX",
-            "-DTBB",
        ],
    ),
    (
        "macos",
-        [
-            "-DOS_MACOSX",
-            "-DROCKSDB_PLATFORM_POSIX",
-            "-DROCKSDB_LIB_IO_POSIX",
-            "-DTBB",
-        ],
-    ),
-    (
-        "windows",
-        [ "-DOS_WIN", "-DWIN32", "-D_MBCS", "-DWIN64", "-DNOMINMAX" ]
+        ["-DOS_MACOSX"],
    ),
 ]

 ROCKSDB_PREPROCESSOR_FLAGS = [
+    "-DROCKSDB_PLATFORM_POSIX",
+    "-DROCKSDB_LIB_IO_POSIX",
    "-DROCKSDB_SUPPORT_THREAD_LOCAL",

    # Flags to enable libs we include
@@ -83,6 +71,8 @@ ROCKSDB_PREPROCESSOR_FLAGS = [
    "-DZSTD",
    "-DZSTD_STATIC_LINKING_ONLY",
    "-DGFLAGS=gflags",
+    "-DTBB",
+    "-DLIBURING",

    # Added missing flags from output of build_detect_platform
    "-DROCKSDB_BACKTRACE",
@@ -120,27 +110,13 @@ ROCKSDB_OS_DEPS += ([(
    ["third-party//jemalloc:headers"],
 )] if sanitizer == "" else [])

-ROCKSDB_LIB_DEPS = [
-    ":rocksdb_lib",
-    ":rocksdb_test_lib",
-] if not is_opt_mode else [":rocksdb_lib"]
-
 cpp_library(
    name = "rocksdb_lib",
    srcs = [
-        "cache/cache.cc",
        "cache/clock_cache.cc",
        "cache/lru_cache.cc",
        "cache/sharded_cache.cc",
        "db/arena_wrapped_db_iter.cc",
-        "db/blob/blob_file_addition.cc",
-        "db/blob/blob_file_builder.cc",
-        "db/blob/blob_file_garbage.cc",
-        "db/blob/blob_file_meta.cc",
-        "db/blob/blob_file_reader.cc",
-        "db/blob/blob_log_format.cc",
-        "db/blob/blob_log_sequential_reader.cc",
-        "db/blob/blob_log_writer.cc",
        "db/builder.cc",
        "db/c.cc",
        "db/column_family.cc",
@@ -152,7 +128,6 @@ cpp_library(
        "db/compaction/compaction_picker_fifo.cc",
        "db/compaction/compaction_picker_level.cc",
        "db/compaction/compaction_picker_universal.cc",
-        "db/compaction/sst_partitioner.cc",
        "db/convenience.cc",
        "db/db_filesnapshot.cc",
        "db/db_impl/db_impl.cc",
@@ -185,8 +160,6 @@ cpp_library(
        "db/memtable_list.cc",
        "db/merge_helper.cc",
        "db/merge_operator.cc",
-        "db/output_validator.cc",
-        "db/periodic_work_scheduler.cc",
        "db/range_del_aggregator.cc",
        "db/range_tombstone_fragmenter.cc",
        "db/repair.cc",
@@ -197,9 +170,7 @@ cpp_library(
        "db/trim_history_scheduler.cc",
        "db/version_builder.cc",
        "db/version_edit.cc",
-        "db/version_edit_handler.cc",
        "db/version_set.cc",
-        "db/wal_edit.cc",
        "db/wal_manager.cc",
        "db/write_batch.cc",
        "db/write_batch_base.cc",
@@ -211,7 +182,6 @@ cpp_library(
        "env/env_hdfs.cc",
        "env/env_posix.cc",
        "env/file_system.cc",
-        "env/file_system_tracer.cc",
        "env/fs_posix.cc",
        "env/io_posix.cc",
        "env/mock_env.cc",
@@ -231,7 +201,6 @@ cpp_library(
        "memory/arena.cc",
        "memory/concurrent_arena.cc",
        "memory/jemalloc_nodump_allocator.cc",
-        "memory/memkind_kmem_allocator.cc",
        "memtable/alloc_tracker.cc",
        "memtable/hash_linklist_rep.cc",
        "memtable/hash_skiplist_rep.cc",
@@ -253,29 +222,20 @@ cpp_library(
        "monitoring/thread_status_util.cc",
        "monitoring/thread_status_util_debug.cc",
        "options/cf_options.cc",
-        "options/configurable.cc",
        "options/db_options.cc",
        "options/options.cc",
        "options/options_helper.cc",
        "options/options_parser.cc",
+        "options/options_sanity_check.cc",
        "port/port_posix.cc",
        "port/stack_trace.cc",
-        "port/win/env_default.cc",
-        "port/win/env_win.cc",
-        "port/win/io_win.cc",
-        "port/win/port_win.cc",
-        "port/win/win_logger.cc",
-        "port/win/win_thread.cc",
        "table/adaptive/adaptive_table_factory.cc",
-        "table/block_based/binary_search_index_reader.cc",
        "table/block_based/block.cc",
        "table/block_based/block_based_filter_block.cc",
        "table/block_based/block_based_table_builder.cc",
        "table/block_based/block_based_table_factory.cc",
-        "table/block_based/block_based_table_iterator.cc",
        "table/block_based/block_based_table_reader.cc",
        "table/block_based/block_builder.cc",
-        "table/block_based/block_prefetcher.cc",
        "table/block_based/block_prefix_index.cc",
        "table/block_based/data_block_footer.cc",
        "table/block_based/data_block_hash_index.cc",
@@ -283,14 +243,9 @@ cpp_library(
        "table/block_based/filter_policy.cc",
        "table/block_based/flush_block_policy.cc",
        "table/block_based/full_filter_block.cc",
-        "table/block_based/hash_index_reader.cc",
        "table/block_based/index_builder.cc",
-        "table/block_based/index_reader_common.cc",
        "table/block_based/parsed_full_filter_block.cc",
        "table/block_based/partitioned_filter_block.cc",
-        "table/block_based/partitioned_index_iterator.cc",
-        "table/block_based/partitioned_index_reader.cc",
-        "table/block_based/reader_common.cc",
        "table/block_based/uncompression_dict_reader.cc",
        "table/block_fetcher.cc",
        "table/cuckoo/cuckoo_table_builder.cc",
@@ -308,22 +263,18 @@ cpp_library(
        "table/plain/plain_table_index.cc",
        "table/plain/plain_table_key_coding.cc",
        "table/plain/plain_table_reader.cc",
-        "table/sst_file_dumper.cc",
        "table/sst_file_reader.cc",
        "table/sst_file_writer.cc",
-        "table/table_factory.cc",
        "table/table_properties.cc",
        "table/two_level_iterator.cc",
        "test_util/sync_point.cc",
        "test_util/sync_point_impl.cc",
        "test_util/transaction_test_util.cc",
        "tools/dump/db_dump_tool.cc",
-        "tools/io_tracer_parser_tool.cc",
        "tools/ldb_cmd.cc",
        "tools/ldb_tool.cc",
        "tools/sst_dump_tool.cc",
        "trace_replay/block_cache_tracer.cc",
-        "trace_replay/io_tracer.cc",
        "trace_replay/trace_replay.cc",
        "util/build_version.cc",
        "util/coding.cc",
@@ -333,7 +284,6 @@ cpp_library(
        "util/concurrent_task_limiter_impl.cc",
        "util/crc32c.cc",
        "util/dynamic_bloom.cc",
-        "util/file_checksum_helper.cc",
        "util/hash.cc",
        "util/murmurhash.cc",
        "util/random.cc",
@@ -351,6 +301,9 @@ cpp_library(
        "utilities/blob_db/blob_db_impl_filesnapshot.cc",
        "utilities/blob_db/blob_dump_tool.cc",
        "utilities/blob_db/blob_file.cc",
+        "utilities/blob_db/blob_log_format.cc",
+        "utilities/blob_db/blob_log_reader.cc",
+        "utilities/blob_db/blob_log_writer.cc",
        "utilities/cassandra/cassandra_compaction_filter.cc",
        "utilities/cassandra/format.cc",
        "utilities/cassandra/merge_operator.cc",
@@ -360,8 +313,6 @@ cpp_library(
        "utilities/debug.cc",
        "utilities/env_mirror.cc",
        "utilities/env_timed.cc",
-        "utilities/fault_injection_env.cc",
-        "utilities/fault_injection_fs.cc",
        "utilities/leveldb_options/leveldb_options.cc",
        "utilities/memory/memory_util.cc",
        "utilities/merge_operators/bytesxor.cc",
@@ -383,8 +334,6 @@ cpp_library(
        "utilities/simulator_cache/sim_cache.cc",
        "utilities/table_properties_collectors/compact_on_deletion_collector.cc",
        "utilities/trace/file_trace_reader_writer.cc",
-        "utilities/transactions/lock/lock_tracker.cc",
-        "utilities/transactions/lock/point_lock_tracker.cc",
        "utilities/transactions/optimistic_transaction.cc",
        "utilities/transactions/optimistic_transaction_db_impl.cc",
        "utilities/transactions/pessimistic_transaction.cc",
@@ -410,295 +359,6 @@ cpp_library(
    preprocessor_flags = ROCKSDB_PREPROCESSOR_FLAGS,
    deps = [],
    external_deps = ROCKSDB_EXTERNAL_DEPS,
-    link_whole = False,
-)
-
-cpp_library(
-    name = "rocksdb_whole_archive_lib",
-    srcs = [
-        "cache/cache.cc",
-        "cache/clock_cache.cc",
-        "cache/lru_cache.cc",
-        "cache/sharded_cache.cc",
-        "db/arena_wrapped_db_iter.cc",
-        "db/blob/blob_file_addition.cc",
-        "db/blob/blob_file_builder.cc",
-        "db/blob/blob_file_garbage.cc",
-        "db/blob/blob_file_meta.cc",
-        "db/blob/blob_file_reader.cc",
-        "db/blob/blob_log_format.cc",
-        "db/blob/blob_log_sequential_reader.cc",
-        "db/blob/blob_log_writer.cc",
-        "db/builder.cc",
-        "db/c.cc",
-        "db/column_family.cc",
-        "db/compacted_db_impl.cc",
-        "db/compaction/compaction.cc",
-        "db/compaction/compaction_iterator.cc",
-        "db/compaction/compaction_job.cc",
-        "db/compaction/compaction_picker.cc",
-        "db/compaction/compaction_picker_fifo.cc",
-        "db/compaction/compaction_picker_level.cc",
-        "db/compaction/compaction_picker_universal.cc",
-        "db/compaction/sst_partitioner.cc",
-        "db/convenience.cc",
-        "db/db_filesnapshot.cc",
-        "db/db_impl/db_impl.cc",
-        "db/db_impl/db_impl_compaction_flush.cc",
-        "db/db_impl/db_impl_debug.cc",
-        "db/db_impl/db_impl_experimental.cc",
-        "db/db_impl/db_impl_files.cc",
-        "db/db_impl/db_impl_open.cc",
-        "db/db_impl/db_impl_readonly.cc",
-        "db/db_impl/db_impl_secondary.cc",
-        "db/db_impl/db_impl_write.cc",
-        "db/db_info_dumper.cc",
-        "db/db_iter.cc",
-        "db/dbformat.cc",
-        "db/error_handler.cc",
-        "db/event_helpers.cc",
-        "db/experimental.cc",
-        "db/external_sst_file_ingestion_job.cc",
-        "db/file_indexer.cc",
-        "db/flush_job.cc",
-        "db/flush_scheduler.cc",
-        "db/forward_iterator.cc",
-        "db/import_column_family_job.cc",
-        "db/internal_stats.cc",
-        "db/log_reader.cc",
-        "db/log_writer.cc",
-        "db/logs_with_prep_tracker.cc",
-        "db/malloc_stats.cc",
-        "db/memtable.cc",
-        "db/memtable_list.cc",
-        "db/merge_helper.cc",
-        "db/merge_operator.cc",
-        "db/output_validator.cc",
-        "db/periodic_work_scheduler.cc",
-        "db/range_del_aggregator.cc",
-        "db/range_tombstone_fragmenter.cc",
-        "db/repair.cc",
-        "db/snapshot_impl.cc",
-        "db/table_cache.cc",
-        "db/table_properties_collector.cc",
-        "db/transaction_log_impl.cc",
-        "db/trim_history_scheduler.cc",
-        "db/version_builder.cc",
-        "db/version_edit.cc",
-        "db/version_edit_handler.cc",
-        "db/version_set.cc",
-        "db/wal_edit.cc",
-        "db/wal_manager.cc",
-        "db/write_batch.cc",
-        "db/write_batch_base.cc",
-        "db/write_controller.cc",
-        "db/write_thread.cc",
-        "env/env.cc",
-        "env/env_chroot.cc",
-        "env/env_encryption.cc",
-        "env/env_hdfs.cc",
-        "env/env_posix.cc",
-        "env/file_system.cc",
-        "env/file_system_tracer.cc",
-        "env/fs_posix.cc",
-        "env/io_posix.cc",
-        "env/mock_env.cc",
-        "file/delete_scheduler.cc",
-        "file/file_prefetch_buffer.cc",
-        "file/file_util.cc",
-        "file/filename.cc",
-        "file/random_access_file_reader.cc",
-        "file/read_write_util.cc",
-        "file/readahead_raf.cc",
-        "file/sequence_file_reader.cc",
-        "file/sst_file_manager_impl.cc",
-        "file/writable_file_writer.cc",
-        "logging/auto_roll_logger.cc",
-        "logging/event_logger.cc",
-        "logging/log_buffer.cc",
-        "memory/arena.cc",
-        "memory/concurrent_arena.cc",
-        "memory/jemalloc_nodump_allocator.cc",
-        "memory/memkind_kmem_allocator.cc",
-        "memtable/alloc_tracker.cc",
-        "memtable/hash_linklist_rep.cc",
-        "memtable/hash_skiplist_rep.cc",
-        "memtable/skiplistrep.cc",
-        "memtable/vectorrep.cc",
-        "memtable/write_buffer_manager.cc",
-        "monitoring/histogram.cc",
-        "monitoring/histogram_windowing.cc",
-        "monitoring/in_memory_stats_history.cc",
-        "monitoring/instrumented_mutex.cc",
-        "monitoring/iostats_context.cc",
-        "monitoring/perf_context.cc",
-        "monitoring/perf_level.cc",
-        "monitoring/persistent_stats_history.cc",
-        "monitoring/statistics.cc",
-        "monitoring/thread_status_impl.cc",
-        "monitoring/thread_status_updater.cc",
-        "monitoring/thread_status_updater_debug.cc",
-        "monitoring/thread_status_util.cc",
-        "monitoring/thread_status_util_debug.cc",
-        "options/cf_options.cc",
-        "options/configurable.cc",
-        "options/db_options.cc",
-        "options/options.cc",
-        "options/options_helper.cc",
-        "options/options_parser.cc",
-        "port/port_posix.cc",
-        "port/stack_trace.cc",
-        "port/win/env_default.cc",
-        "port/win/env_win.cc",
-        "port/win/io_win.cc",
-        "port/win/port_win.cc",
-        "port/win/win_logger.cc",
-        "port/win/win_thread.cc",
-        "table/adaptive/adaptive_table_factory.cc",
-        "table/block_based/binary_search_index_reader.cc",
-        "table/block_based/block.cc",
-        "table/block_based/block_based_filter_block.cc",
-        "table/block_based/block_based_table_builder.cc",
-        "table/block_based/block_based_table_factory.cc",
-        "table/block_based/block_based_table_iterator.cc",
-        "table/block_based/block_based_table_reader.cc",
-        "table/block_based/block_builder.cc",
-        "table/block_based/block_prefetcher.cc",
-        "table/block_based/block_prefix_index.cc",
-        "table/block_based/data_block_footer.cc",
-        "table/block_based/data_block_hash_index.cc",
-        "table/block_based/filter_block_reader_common.cc",
-        "table/block_based/filter_policy.cc",
-        "table/block_based/flush_block_policy.cc",
-        "table/block_based/full_filter_block.cc",
-        "table/block_based/hash_index_reader.cc",
-        "table/block_based/index_builder.cc",
-        "table/block_based/index_reader_common.cc",
-        "table/block_based/parsed_full_filter_block.cc",
-        "table/block_based/partitioned_filter_block.cc",
-        "table/block_based/partitioned_index_iterator.cc",
-        "table/block_based/partitioned_index_reader.cc",
-        "table/block_based/reader_common.cc",
-        "table/block_based/uncompression_dict_reader.cc",
-        "table/block_fetcher.cc",
-        "table/cuckoo/cuckoo_table_builder.cc",
-        "table/cuckoo/cuckoo_table_factory.cc",
-        "table/cuckoo/cuckoo_table_reader.cc",
-        "table/format.cc",
-        "table/get_context.cc",
-        "table/iterator.cc",
-        "table/merging_iterator.cc",
-        "table/meta_blocks.cc",
-        "table/persistent_cache_helper.cc",
-        "table/plain/plain_table_bloom.cc",
-        "table/plain/plain_table_builder.cc",
-        "table/plain/plain_table_factory.cc",
-        "table/plain/plain_table_index.cc",
-        "table/plain/plain_table_key_coding.cc",
-        "table/plain/plain_table_reader.cc",
-        "table/sst_file_dumper.cc",
-        "table/sst_file_reader.cc",
-        "table/sst_file_writer.cc",
-        "table/table_factory.cc",
-        "table/table_properties.cc",
-        "table/two_level_iterator.cc",
-        "test_util/sync_point.cc",
-        "test_util/sync_point_impl.cc",
-        "test_util/transaction_test_util.cc",
-        "tools/dump/db_dump_tool.cc",
-        "tools/io_tracer_parser_tool.cc",
-        "tools/ldb_cmd.cc",
-        "tools/ldb_tool.cc",
-        "tools/sst_dump_tool.cc",
-        "trace_replay/block_cache_tracer.cc",
-        "trace_replay/io_tracer.cc",
-        "trace_replay/trace_replay.cc",
-        "util/build_version.cc",
-        "util/coding.cc",
-        "util/compaction_job_stats_impl.cc",
-        "util/comparator.cc",
-        "util/compression_context_cache.cc",
-        "util/concurrent_task_limiter_impl.cc",
-        "util/crc32c.cc",
-        "util/dynamic_bloom.cc",
-        "util/file_checksum_helper.cc",
-        "util/hash.cc",
-        "util/murmurhash.cc",
-        "util/random.cc",
-        "util/rate_limiter.cc",
-        "util/slice.cc",
-        "util/status.cc",
-        "util/string_util.cc",
-        "util/thread_local.cc",
-        "util/threadpool_imp.cc",
-        "util/xxhash.cc",
-        "utilities/backupable/backupable_db.cc",
-        "utilities/blob_db/blob_compaction_filter.cc",
-        "utilities/blob_db/blob_db.cc",
-        "utilities/blob_db/blob_db_impl.cc",
-        "utilities/blob_db/blob_db_impl_filesnapshot.cc",
-        "utilities/blob_db/blob_dump_tool.cc",
-        "utilities/blob_db/blob_file.cc",
-        "utilities/cassandra/cassandra_compaction_filter.cc",
-        "utilities/cassandra/format.cc",
-        "utilities/cassandra/merge_operator.cc",
-        "utilities/checkpoint/checkpoint_impl.cc",
-        "utilities/compaction_filters/remove_emptyvalue_compactionfilter.cc",
-        "utilities/convenience/info_log_finder.cc",
-        "utilities/debug.cc",
-        "utilities/env_mirror.cc",
-        "utilities/env_timed.cc",
-        "utilities/fault_injection_env.cc",
-        "utilities/fault_injection_fs.cc",
-        "utilities/leveldb_options/leveldb_options.cc",
-        "utilities/memory/memory_util.cc",
-        "utilities/merge_operators/bytesxor.cc",
-        "utilities/merge_operators/max.cc",
-        "utilities/merge_operators/put.cc",
-        "utilities/merge_operators/sortlist.cc",
-        "utilities/merge_operators/string_append/stringappend.cc",
-        "utilities/merge_operators/string_append/stringappend2.cc",
-        "utilities/merge_operators/uint64add.cc",
-        "utilities/object_registry.cc",
-        "utilities/option_change_migration/option_change_migration.cc",
-        "utilities/options/options_util.cc",
-        "utilities/persistent_cache/block_cache_tier.cc",
-        "utilities/persistent_cache/block_cache_tier_file.cc",
-        "utilities/persistent_cache/block_cache_tier_metadata.cc",
-        "utilities/persistent_cache/persistent_cache_tier.cc",
-        "utilities/persistent_cache/volatile_tier_impl.cc",
-        "utilities/simulator_cache/cache_simulator.cc",
-        "utilities/simulator_cache/sim_cache.cc",
-        "utilities/table_properties_collectors/compact_on_deletion_collector.cc",
-        "utilities/trace/file_trace_reader_writer.cc",
-        "utilities/transactions/lock/lock_tracker.cc",
-        "utilities/transactions/lock/point_lock_tracker.cc",
-        "utilities/transactions/optimistic_transaction.cc",
-        "utilities/transactions/optimistic_transaction_db_impl.cc",
-        "utilities/transactions/pessimistic_transaction.cc",
-        "utilities/transactions/pessimistic_transaction_db.cc",
-        "utilities/transactions/snapshot_checker.cc",
-        "utilities/transactions/transaction_base.cc",
-        "utilities/transactions/transaction_db_mutex_impl.cc",
-        "utilities/transactions/transaction_lock_mgr.cc",
-        "utilities/transactions/transaction_util.cc",
-        "utilities/transactions/write_prepared_txn.cc",
-        "utilities/transactions/write_prepared_txn_db.cc",
-        "utilities/transactions/write_unprepared_txn.cc",
-        "utilities/transactions/write_unprepared_txn_db.cc",
-        "utilities/ttl/db_ttl_impl.cc",
-        "utilities/write_batch_with_index/write_batch_with_index.cc",
-        "utilities/write_batch_with_index/write_batch_with_index_internal.cc",
-    ],
-    auto_headers = AutoHeaders.RECURSIVE_GLOB,
-    arch_preprocessor_flags = ROCKSDB_ARCH_PREPROCESSOR_FLAGS,
-    compiler_flags = ROCKSDB_COMPILER_FLAGS,
-    os_deps = ROCKSDB_OS_DEPS,
-    os_preprocessor_flags = ROCKSDB_OS_PREPROCESSOR_FLAGS,
-    preprocessor_flags = ROCKSDB_PREPROCESSOR_FLAGS,
-    deps = [],
-    external_deps = ROCKSDB_EXTERNAL_DEPS,
-    link_whole = True,
 )

 cpp_library(
@@ -706,7 +366,7 @@ cpp_library(
    srcs = [
        "db/db_test_util.cc",
        "table/mock_table.cc",
-        "test_util/mock_time_env.cc",
+        "test_util/fault_injection_test_env.cc",
        "test_util/testharness.cc",
        "test_util/testutil.cc",
        "tools/block_cache_analyzer/block_cache_trace_analyzer.cc",
@@ -720,10 +380,7 @@ cpp_library(
    os_preprocessor_flags = ROCKSDB_OS_PREPROCESSOR_FLAGS,
    preprocessor_flags = ROCKSDB_PREPROCESSOR_FLAGS,
    deps = [":rocksdb_lib"],
-    external_deps = ROCKSDB_EXTERNAL_DEPS + [
-        ("googletest", None, "gtest"),
-    ],
-    link_whole = False,
+    external_deps = ROCKSDB_EXTERNAL_DEPS,
 )

 cpp_library(
@@ -742,7 +399,6 @@ cpp_library(
    preprocessor_flags = ROCKSDB_PREPROCESSOR_FLAGS,
    deps = [":rocksdb_lib"],
    external_deps = ROCKSDB_EXTERNAL_DEPS,
-    link_whole = False,
 )

 cpp_library(
@@ -767,31 +423,10 @@ cpp_library(
    os_deps = ROCKSDB_OS_DEPS,
    os_preprocessor_flags = ROCKSDB_OS_PREPROCESSOR_FLAGS,
    preprocessor_flags = ROCKSDB_PREPROCESSOR_FLAGS,
-    deps = ROCKSDB_LIB_DEPS,
+    deps = [":rocksdb_lib"],
    external_deps = ROCKSDB_EXTERNAL_DEPS,
 )

-if not is_opt_mode:
-    cpp_binary(
-        name = "c_test_bin",
-        srcs = ["db/c_test.c"],
-        arch_preprocessor_flags = ROCKSDB_ARCH_PREPROCESSOR_FLAGS,
-        os_preprocessor_flags = ROCKSDB_OS_PREPROCESSOR_FLAGS,
-        compiler_flags = ROCKSDB_COMPILER_FLAGS,
-        preprocessor_flags = ROCKSDB_PREPROCESSOR_FLAGS,
-        deps = [":rocksdb_test_lib"],
-    )
-
-if not is_opt_mode:
-    custom_unittest(
-        "c_test",
-        command = [
-            native.package_name() + "/buckifier/rocks_test_runner.sh",
-            "$(location :{})".format("c_test_bin"),
-        ],
-        type = "simple",
-    )
-
 cpp_library(
    name = "env_basic_test_lib",
    srcs = ["env/env_basic_test.cc"],
@@ -803,7 +438,6 @@ cpp_library(
    preprocessor_flags = ROCKSDB_PREPROCESSOR_FLAGS,
    deps = [":rocksdb_test_lib"],
    external_deps = ROCKSDB_EXTERNAL_DEPS,
-    link_whole = False,
 )

 # [test_name, test_src, test_type, extra_deps, extra_compiler_flags]
@@ -843,34 +477,6 @@ ROCKS_TESTS = [
        [],
        [],
    ],
-    [
-        "blob_file_addition_test",
-        "db/blob/blob_file_addition_test.cc",
-        "serial",
-        [],
-        [],
-    ],
-    [
-        "blob_file_builder_test",
-        "db/blob/blob_file_builder_test.cc",
-        "serial",
-        [],
-        [],
-    ],
-    [
-        "blob_file_garbage_test",
-        "db/blob/blob_file_garbage_test.cc",
-        "serial",
-        [],
-        [],
-    ],
-    [
-        "blob_file_reader_test",
-        "db/blob/blob_file_reader_test.cc",
-        "serial",
-        [],
-        [],
-    ],
    [
        "block_based_filter_block_test",
        "table/block_based/block_based_filter_block_test.cc",
@@ -878,13 +484,6 @@ ROCKS_TESTS = [
        [],
        [],
    ],
-    [
-        "block_based_table_reader_test",
-        "table/block_based/block_based_table_reader_test.cc",
-        "serial",
-        [],
-        [],
-    ],
    [
        "block_cache_trace_analyzer_test",
        "tools/block_cache_analyzer/block_cache_trace_analyzer_test.cc",
@@ -899,13 +498,6 @@ ROCKS_TESTS = [
        [],
        [],
    ],
-    [
-        "block_fetcher_test",
-        "table/block_fetcher_test.cc",
-        "serial",
-        [],
-        [],
-    ],
    [
        "block_test",
        "table/block_based/block_test.cc",
@@ -920,6 +512,13 @@ ROCKS_TESTS = [
        [],
        [],
    ],
+    [
+        "c_test",
+        "db/c_test.c",
+        "serial",
+        [],
+        [],
+    ],
    [
        "cache_simulator_test",
        "utilities/simulator_cache/cache_simulator_test.cc",
@@ -986,7 +585,7 @@ ROCKS_TESTS = [
    [
        "column_family_test",
        "db/column_family_test.cc",
-        "parallel",
+        "serial",
        [],
        [],
    ],
@@ -1039,13 +638,6 @@ ROCKS_TESTS = [
        [],
        [],
    ],
-    [
-        "configurable_test",
-        "options/configurable_test.cc",
-        "serial",
-        [],
-        [],
-    ],
    [
        "corruption_test",
        "db/corruption_test.cc",
@@ -1097,7 +689,7 @@ ROCKS_TESTS = [
    ],
    [
        "db_blob_index_test",
-        "db/blob/db_blob_index_test.cc",
+        "db/db_blob_index_test.cc",
        "serial",
        [],
        [],
@@ -1193,13 +785,6 @@ ROCKS_TESTS = [
        [],
        [],
    ],
-    [
-        "db_logical_block_size_cache_test",
-        "db/db_logical_block_size_cache_test.cc",
-        "serial",
-        [],
-        [],
-    ],
    [
        "db_memtable_test",
        "db/db_memtable_test.cc",
@@ -1287,7 +872,7 @@ ROCKS_TESTS = [
    [
        "db_test2",
        "db/db_test2.cc",
-        "parallel",
+        "serial",
        [],
        [],
    ],
@@ -1305,20 +890,6 @@ ROCKS_TESTS = [
        [],
        [],
    ],
-    [
-        "db_with_timestamp_basic_test",
-        "db/db_with_timestamp_basic_test.cc",
-        "serial",
-        [],
-        [],
-    ],
-    [
-        "db_with_timestamp_compaction_test",
-        "db/db_with_timestamp_compaction_test.cc",
-        "serial",
-        [],
-        [],
-    ],
    [
        "db_write_test",
        "db/db_write_test.cc",
@@ -1333,13 +904,6 @@ ROCKS_TESTS = [
        [],
        [],
    ],
-    [
-        "defer_test",
-        "util/defer_test.cc",
-        "serial",
-        [],
-        [],
-    ],
    [
        "delete_scheduler_test",
        "file/delete_scheduler_test.cc",
@@ -1390,8 +954,8 @@ ROCKS_TESTS = [
        [],
    ],
    [
-        "error_handler_fs_test",
-        "db/error_handler_fs_test.cc",
+        "error_handler_test",
+        "db/error_handler_test.cc",
        "serial",
        [],
        [],
@@ -1508,27 +1072,6 @@ ROCKS_TESTS = [
        [],
        [],
    ],
-    [
-        "io_posix_test",
-        "env/io_posix_test.cc",
-        "serial",
-        [],
-        [],
-    ],
-    [
-        "io_tracer_parser_test",
-        "tools/io_tracer_parser_test.cc",
-        "serial",
-        [],
-        [],
-    ],
-    [
-        "io_tracer_test",
-        "trace_replay/io_tracer_test.cc",
-        "serial",
-        [],
-        [],
-    ],
    [
        "iostats_context_test",
        "monitoring/iostats_context_test.cc",
@@ -1571,13 +1114,6 @@ ROCKS_TESTS = [
        [],
        [],
    ],
-    [
-        "memkind_kmem_allocator_test",
-        "memory/memkind_kmem_allocator_test.cc",
-        "serial",
-        [],
-        [],
-    ],
    [
        "memory_test",
        "utilities/memory/memory_test.cc",
@@ -1690,13 +1226,6 @@ ROCKS_TESTS = [
        [],
        [],
    ],
-    [
-        "periodic_work_scheduler_test",
-        "db/periodic_work_scheduler_test.cc",
-        "serial",
-        [],
-        [],
-    ],
    [
        "persistent_cache_test",
        "utilities/persistent_cache/persistent_cache_test.cc",
@@ -1711,13 +1240,6 @@ ROCKS_TESTS = [
        [],
        [],
    ],
-    [
-        "prefetch_test",
-        "file/prefetch_test.cc",
-        "serial",
-        [],
-        [],
-    ],
    [
        "prefix_test",
        "db/prefix_test.cc",
@@ -1725,13 +1247,6 @@ ROCKS_TESTS = [
        [],
        [],
    ],
-    [
-        "random_access_file_reader_test",
-        "file/random_access_file_reader_test.cc",
-        "serial",
-        [],
-        [],
-    ],
    [
        "random_test",
        "util/random_test.cc",
@@ -1795,13 +1310,6 @@ ROCKS_TESTS = [
        [],
        [],
    ],
-    [
-        "slice_test",
-        "util/slice_test.cc",
-        "serial",
-        [],
-        [],
-    ],
    [
        "slice_transform_test",
        "util/slice_transform_test.cc",
@@ -1858,13 +1366,6 @@ ROCKS_TESTS = [
        [],
        [],
    ],
-    [
-        "testutil_test",
-        "test_util/testutil_test.cc",
-        "serial",
-        [],
-        [],
-    ],
    [
        "thread_list_test",
        "util/thread_list_test.cc",
@@ -1886,13 +1387,6 @@ ROCKS_TESTS = [
        [],
        [],
    ],
-    [
-        "timer_test",
-        "util/timer_test.cc",
-        "serial",
-        [],
-        [],
-    ],
    [
        "trace_analyzer_test",
        "tools/trace_analyzer_test.cc",
@@ -1900,13 +1394,6 @@ ROCKS_TESTS = [
        [],
        [],
    ],
-    [
-        "transaction_lock_mgr_test",
-        "utilities/transactions/transaction_lock_mgr_test.cc",
-        "parallel",
-        [],
-        [],
-    ],
    [
        "transaction_test",
        "utilities/transactions/transaction_test.cc",
@@ -1956,13 +1443,6 @@ ROCKS_TESTS = [
        [],
        [],
    ],
-    [
-        "work_queue_test",
-        "util/work_queue_test.cc",
-        "serial",
-        [],
-        [],
-    ],
    [
        "write_batch_test",
        "db/write_batch_test.cc",
@@ -2018,17 +1498,18 @@ ROCKS_TESTS = [
 # Do not build the tests in opt mode, since SyncPoint and other test code
 # will not be included.
 [
-    cpp_unittest(
-        name = test_name,
-        srcs = [test_cc],
-        arch_preprocessor_flags = ROCKSDB_ARCH_PREPROCESSOR_FLAGS,
-        os_preprocessor_flags = ROCKSDB_OS_PREPROCESSOR_FLAGS,
-        compiler_flags = ROCKSDB_COMPILER_FLAGS + extra_compiler_flags,
-        preprocessor_flags = ROCKSDB_PREPROCESSOR_FLAGS,
-        deps = [":rocksdb_test_lib"] + extra_deps,
-        external_deps = ROCKSDB_EXTERNAL_DEPS + [
-            ("googletest", None, "gtest"),
-        ],
+    test_binary(
+        extra_compiler_flags = extra_compiler_flags,
+        extra_deps = extra_deps,
+        parallelism = parallelism,
+        rocksdb_arch_preprocessor_flags = ROCKSDB_ARCH_PREPROCESSOR_FLAGS,
+        rocksdb_compiler_flags = ROCKSDB_COMPILER_FLAGS,
+        rocksdb_external_deps = ROCKSDB_EXTERNAL_DEPS,
+        rocksdb_os_deps = ROCKSDB_OS_DEPS,
+        rocksdb_os_preprocessor_flags = ROCKSDB_OS_PREPROCESSOR_FLAGS,
+        rocksdb_preprocessor_flags = ROCKSDB_PREPROCESSOR_FLAGS,
+        test_cc = test_cc,
+        test_name = test_name,
    )
    for test_name, test_cc, parallelism, extra_deps, extra_compiler_flags in ROCKS_TESTS
    if not is_opt_mode
@@ -106,6 +106,3 @@ LzLabs is using RocksDB as a storage engine in their multi-database distributed
 ## Nebula Graph

 [Nebula Graph](https://github.com/vesoft-inc/nebula) is a distributed, scalable, lightning-fast, open source graph database capable of hosting super large scale graphs with dozens of billions of vertices (nodes) and trillions of edges, with milliseconds of latency.
-
-## YugabyteDB
-[YugabyteDB](https://www.yugabyte.com/) is an open source, high performance, distributed SQL database that uses RocksDB as its storage layer. For more information, please see https://github.com/yugabyte/yugabyte-db/.
@@ -1,6 +1,6 @@
 version: 1.0.{build}

-image: Visual Studio 2019
+image: Visual Studio 2017

 environment:
  JAVA_HOME: C:\Program Files\Java\jdk1.8.0
@@ -29,18 +29,17 @@ install:
  - md %THIRDPARTY_HOME%
  - echo "Building Snappy dependency..."
  - cd %THIRDPARTY_HOME%
-  - curl --fail --silent --show-error --output snappy-1.1.7.zip --location https://github.com/google/snappy/archive/1.1.7.zip
+  - curl -fsSL -o snappy-1.1.7.zip https://github.com/google/snappy/archive/1.1.7.zip
  - unzip snappy-1.1.7.zip
  - cd snappy-1.1.7
  - mkdir build
  - cd build
-  - if DEFINED CMAKE_PLATEFORM_NAME (set "PLATEFORM_OPT=-A %CMAKE_PLATEFORM_NAME%")
-  - cmake .. -G "%CMAKE_GENERATOR%" %PLATEFORM_OPT%
+  - cmake -G "%CMAKE_GENERATOR%" ..
  - msbuild Snappy.sln /p:Configuration=Debug /p:Platform=x64
  - msbuild Snappy.sln /p:Configuration=Release /p:Platform=x64
  - echo "Building LZ4 dependency..."
  - cd %THIRDPARTY_HOME%
-  - curl --fail --silent --show-error --output lz4-1.8.3.zip --location https://github.com/lz4/lz4/archive/v1.8.3.zip
+  - curl -fsSL -o lz4-1.8.3.zip https://github.com/lz4/lz4/archive/v1.8.3.zip
  - unzip lz4-1.8.3.zip
  - cd lz4-1.8.3\visual\VS2010
  - ps: $CMD="$Env:DEV_ENV"; & $CMD lz4.sln /upgrade
@@ -48,7 +47,7 @@ install:
  - msbuild lz4.sln /p:Configuration=Release /p:Platform=x64
  - echo "Building ZStd dependency..."
  - cd %THIRDPARTY_HOME%
-  - curl --fail --silent --show-error --output zstd-1.4.0.zip --location https://github.com/facebook/zstd/archive/v1.4.0.zip
+  - curl -fsSL -o zstd-1.4.0.zip https://github.com/facebook/zstd/archive/v1.4.0.zip
  - unzip zstd-1.4.0.zip
  - cd zstd-1.4.0\build\VS2010
  - ps: $CMD="$Env:DEV_ENV"; & $CMD zstd.sln /upgrade
@@ -58,8 +57,7 @@ install:
 before_build:
  - md %APPVEYOR_BUILD_FOLDER%\build
  - cd %APPVEYOR_BUILD_FOLDER%\build
-  - if DEFINED CMAKE_PLATEFORM_NAME (set "PLATEFORM_OPT=-A %CMAKE_PLATEFORM_NAME%")
-  - cmake .. -G "%CMAKE_GENERATOR%" %PLATEFORM_OPT% %CMAKE_OPT% -DCMAKE_BUILD_TYPE=Debug -DOPTDBG=1 -DPORTABLE=1 -DSNAPPY=1 -DLZ4=1 -DZSTD=1 -DXPRESS=1 -DJNI=1 -DWITH_ALL_TESTS=0
+  - cmake -G "%CMAKE_GENERATOR%" -DCMAKE_BUILD_TYPE=Debug -DOPTDBG=1 -DPORTABLE=1 -DSNAPPY=1 -DLZ4=1 -DZSTD=1 -DXPRESS=1 -DJNI=1 ..
  - cd ..

 build:
@@ -70,7 +68,7 @@ build:
 test:

 test_script:
-  - ps: build_tools\run_ci_db_test.ps1 -SuiteRun db_basic_test,env_basic_test -Concurrency 8
+  - ps: build_tools\run_ci_db_test.ps1 -SuiteRun db_basic_test,db_test2,db_test,env_basic_test,env_test,db_merge_operand_test -Concurrency 8

 on_failure:
  - cmd: 7z a build-failed.zip %APPVEYOR_BUILD_FOLDER%\build\ && appveyor PushArtifact build-failed.zip
@@ -20,10 +20,10 @@ from util import ColorString
 # User can pass extra dependencies as a JSON object via command line, and this
 # script can include these dependencies in the generate TARGETS file.
 # Usage:
-# $python3 buckifier/buckify_rocksdb.py
+# $python buckifier/buckify_rocksdb.py
 # (This generates a TARGET file without user-specified dependency for unit
 # tests.)
-# $python3 buckifier/buckify_rocksdb.py \
+# $python buckifier/buckify_rocksdb.py \
 #        '{"fake": { \
 #                      "extra_deps": [":test_dep", "//fakes/module:mock1"],  \
 #                      "extra_compiler_flags": ["-DROCKSDB_LITE", "-Os"], \
@@ -48,8 +48,8 @@ def parse_src_mk(repo_path):
        if '=' in line:
            current_src = line.split('=')[0].strip()
            src_files[current_src] = []
-        elif '.c' in line:
-            src_path = line.split('\\')[0].strip()
+        elif '.cc' in line:
+            src_path = line.split('.cc')[0].strip() + '.cc'
            src_files[current_src].append(src_path)
    return src_files

@@ -69,11 +69,27 @@ def get_cc_files(repo_path):
    return cc_files


-# Get parallel tests from Makefile
-def get_parallel_tests(repo_path):
+# Get tests from Makefile
+def get_tests(repo_path):
    Makefile = repo_path + "/Makefile"

-    s = set({})
+    # Dictionary TEST_NAME => IS_PARALLEL
+    tests = {}
+
+    found_tests = False
+    for line in open(Makefile):
+        line = line.strip()
+        if line.startswith("TESTS ="):
+            found_tests = True
+        elif found_tests:
+            if line.endswith("\\"):
+                # remove the trailing \
+                line = line[:-1]
+                line = line.strip()
+                tests[line] = False
+            else:
+                # we consumed all the tests
+                break

    found_parallel_tests = False
    for line in open(Makefile):
@@ -85,12 +101,13 @@ def get_parallel_tests(repo_path):
                # remove the trailing \
                line = line[:-1]
                line = line.strip()
-                s.add(line)
+                tests[line] = True
            else:
                # we consumed all the parallel tests
                break

-    return s
+    return tests
+

 # Parse extra dependencies passed by user from command line
 def get_dependencies():
@@ -123,28 +140,18 @@ def generate_targets(repo_path, deps_map):
    src_mk = parse_src_mk(repo_path)
    # get all .cc files
    cc_files = get_cc_files(repo_path)
-    # get parallel tests from Makefile
-    parallel_tests = get_parallel_tests(repo_path)
+    # get tests from Makefile
+    tests = get_tests(repo_path)

-    if src_mk is None or cc_files is None or parallel_tests is None:
+    if src_mk is None or cc_files is None or tests is None:
        return False

    TARGETS = TARGETSBuilder("%s/TARGETS" % repo_path)
-
    # rocksdb_lib
    TARGETS.add_library(
        "rocksdb_lib",
        src_mk["LIB_SOURCES"] +
        src_mk["TOOL_LIB_SOURCES"])
-    # rocksdb_whole_archive_lib
-    TARGETS.add_library(
-        "rocksdb_whole_archive_lib",
-        src_mk["LIB_SOURCES"] +
-        src_mk["TOOL_LIB_SOURCES"],
-        deps=None,
-        headers=None,
-        extra_external_deps="",
-        link_whole=True)
    # rocksdb_test_lib
    TARGETS.add_library(
        "rocksdb_test_lib",
@@ -152,10 +159,7 @@ def generate_targets(repo_path, deps_map):
        src_mk.get("TEST_LIB_SOURCES", []) +
        src_mk.get("EXP_LIB_SOURCES", []) +
        src_mk.get("ANALYZER_LIB_SOURCES", []),
-        [":rocksdb_lib"],
-        extra_external_deps=""" + [
-        ("googletest", None, "gtest"),
-    ]""")
+        [":rocksdb_lib"])
    # rocksdb_tools_lib
    TARGETS.add_library(
        "rocksdb_tools_lib",
@@ -164,50 +168,40 @@ def generate_targets(repo_path, deps_map):
        ["test_util/testutil.cc"],
        [":rocksdb_lib"])
    # rocksdb_stress_lib
-    TARGETS.add_rocksdb_library(
+    TARGETS.add_library(
        "rocksdb_stress_lib",
        src_mk.get("ANALYZER_LIB_SOURCES", [])
        + src_mk.get('STRESS_LIB_SOURCES', [])
-        + ["test_util/testutil.cc"])
-
-    print("Extra dependencies:\n{0}".format(json.dumps(deps_map)))
-
-    # Dictionary test executable name -> relative source file path
-    test_source_map = {}
-    print(src_mk)
-
-    # c_test.c is added through TARGETS.add_c_test(). If there
-    # are more than one .c test file, we need to extend
-    # TARGETS.add_c_test() to include other C tests too.
-    for test_src in src_mk.get("TEST_MAIN_SOURCES_C", []):
-        if test_src != 'db/c_test.c':
-            print("Don't know how to deal with " + test_src)
-            return False
-    TARGETS.add_c_test()
-
-    for test_src in src_mk.get("TEST_MAIN_SOURCES", []):
-        test = test_src.split('.c')[0].strip().split('/')[-1].strip()
-        test_source_map[test] = test_src
-        print("" + test + " " + test_src)
+        + ["test_util/testutil.cc"],
+        [":rocksdb_lib"])

+    print("Extra dependencies:\n{0}".format(str(deps_map)))
+    # test for every test we found in the Makefile
    for target_alias, deps in deps_map.items():
-        for test, test_src in sorted(test_source_map.items()):
-            if len(test) == 0:
-                print(ColorString.warning("Failed to get test name for %s" % test_src))
+        for test in sorted(tests):
+            match_src = [src for src in cc_files if ("/%s.c" % test) in src]
+            if len(match_src) == 0:
+                print(ColorString.warning("Cannot find .cc file for %s" % test))
+                continue
+            elif len(match_src) > 1:
+                print(ColorString.warning("Found more than one .cc for %s" % test))
+                print(match_src)
                continue

+            assert(len(match_src) == 1)
+            is_parallel = tests[test]
            test_target_name = \
                test if not target_alias else test + "_" + target_alias
            TARGETS.register_test(
                test_target_name,
-                test_src,
-                test in parallel_tests,
-                json.dumps(deps['extra_deps']),
-                json.dumps(deps['extra_compiler_flags']))
+                match_src[0],
+                is_parallel,
+                deps['extra_deps'],
+                deps['extra_compiler_flags'])

            if test in _EXPORTED_TEST_LIBS:
                test_library = "%s_lib" % test_target_name
-                TARGETS.add_library(test_library, [test_src], [":rocksdb_test_lib"])
+                TARGETS.add_library(test_library, match_src, [":rocksdb_test_lib"])
    TARGETS.flush_tests()

    print(ColorString.info("Generated TARGETS Summary:"))
@@ -226,7 +220,6 @@ def get_rocksdb_path():

    return rocksdb_path

-
 def exit_with_error(msg):
    print(ColorString.error(msg))
    sys.exit(1)
@@ -1,32 +0,0 @@
-#!/usr/bin/env bash
-# Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
-# If clang_format_diff.py command is not specfied, we assume we are able to
-# access directly without any path.
-
-TGT_DIFF=`git diff TARGETS | head -n 1`
-
-if [ ! -z "$TGT_DIFF" ]
-then
-  echo "TARGETS file has uncommitted changes. Skip this check."
-  exit 0
-fi
-
-echo Backup original TARGETS file.
-
-cp TARGETS TARGETS.bkp
-
-${PYTHON:-python3} buckifier/buckify_rocksdb.py
-
-TGT_DIFF=`git diff TARGETS | head -n 1`
-
-if [ -z "$TGT_DIFF" ]
-then
-  mv TARGETS.bkp TARGETS
-  exit 0
-else
-  echo "Please run '${PYTHON:-python3} buckifier/buckify_rocksdb.py' to update TARGETS file."
-  echo "Do not manually update TARGETS file."
-  ${PYTHON:-python3} --version
-  mv TARGETS.bkp TARGETS
-  exit 1
-fi
@@ -27,9 +27,8 @@ def pretty_list(lst, indent=8):
 class TARGETSBuilder(object):
    def __init__(self, path):
        self.path = path
-        self.targets_file = open(path, 'wb')
-        header = targets_cfg.rocksdb_target_header_template
-        self.targets_file.write(header.encode("utf-8"))
+        self.targets_file = open(path, 'w')
+        self.targets_file.write(targets_cfg.rocksdb_target_header)
        self.total_lib = 0
        self.total_bin = 0
        self.total_test = 0
@@ -38,69 +37,26 @@ class TARGETSBuilder(object):
    def __del__(self):
        self.targets_file.close()

-    def add_library(self, name, srcs, deps=None, headers=None,
-                    extra_external_deps="", link_whole=False):
+    def add_library(self, name, srcs, deps=None, headers=None):
        headers_attr_prefix = ""
        if headers is None:
            headers_attr_prefix = "auto_"
            headers = "AutoHeaders.RECURSIVE_GLOB"
-        else:
-            headers = "[" + pretty_list(headers) + "]"
        self.targets_file.write(targets_cfg.library_template.format(
            name=name,
            srcs=pretty_list(srcs),
            headers_attr_prefix=headers_attr_prefix,
            headers=headers,
-            deps=pretty_list(deps),
-            extra_external_deps=extra_external_deps,
-            link_whole=link_whole).encode("utf-8"))
-        self.total_lib = self.total_lib + 1
-
-    def add_rocksdb_library(self, name, srcs, headers=None):
-        headers_attr_prefix = ""
-        if headers is None:
-            headers_attr_prefix = "auto_"
-            headers = "AutoHeaders.RECURSIVE_GLOB"
-        else:
-            headers = "[" + pretty_list(headers) + "]"
-        self.targets_file.write(targets_cfg.rocksdb_library_template.format(
-            name=name,
-            srcs=pretty_list(srcs),
-            headers_attr_prefix=headers_attr_prefix,
-            headers=headers).encode("utf-8"))
+            deps=pretty_list(deps)))
        self.total_lib = self.total_lib + 1

    def add_binary(self, name, srcs, deps=None):
-        self.targets_file.write(targets_cfg.binary_template.format(
-            name=name,
-            srcs=pretty_list(srcs),
-            deps=pretty_list(deps)).encode("utf-8"))
+        self.targets_file.write(targets_cfg.binary_template % (
+            name,
+            pretty_list(srcs),
+            pretty_list(deps)))
        self.total_bin = self.total_bin + 1

-    def add_c_test(self):
-        self.targets_file.write(b"""
-if not is_opt_mode:
-    cpp_binary(
-        name = "c_test_bin",
-        srcs = ["db/c_test.c"],
-        arch_preprocessor_flags = ROCKSDB_ARCH_PREPROCESSOR_FLAGS,
-        os_preprocessor_flags = ROCKSDB_OS_PREPROCESSOR_FLAGS,
-        compiler_flags = ROCKSDB_COMPILER_FLAGS,
-        preprocessor_flags = ROCKSDB_PREPROCESSOR_FLAGS,
-        deps = [":rocksdb_test_lib"],
-    )
-
-if not is_opt_mode:
-    custom_unittest(
-        "c_test",
-        command = [
-            native.package_name() + "/buckifier/rocks_test_runner.sh",
-            "$(location :{})".format("c_test_bin"),
-        ],
-        type = "simple",
-    )
-""")
-
    def register_test(self,
                      test_name,
                      src,
@@ -120,5 +76,5 @@ if not is_opt_mode:
        self.total_test = self.total_test + 1

    def flush_tests(self):
-        self.targets_file.write(targets_cfg.unittests_template.format(tests=self.tests_cfg).encode("utf-8"))
+        self.targets_file.write(targets_cfg.unittests_template % self.tests_cfg)
        self.tests_cfg = ""
@@ -4,8 +4,7 @@ from __future__ import division
 from __future__ import print_function
 from __future__ import unicode_literals

-rocksdb_target_header_template = \
-    """# This file \100generated by `python3 buckifier/buckify_rocksdb.py`
+rocksdb_target_header = """# This file \100generated by `python buckifier/buckify_rocksdb.py`
 # --> DO NOT EDIT MANUALLY <--
 # This file is a Facebook-specific integration for buck builds, so can
 # only be validated by Facebook employees.
@@ -32,16 +31,15 @@ ROCKSDB_EXTERNAL_DEPS = [
    ("gflags", None, "gflags"),
    ("lz4", None, "lz4"),
    ("zstd", None),
+    ("tbb", None),
+    ("liburing", None, "uring"),
+    ("googletest", None, "gtest"),
 ]

 ROCKSDB_OS_DEPS = [
    (
        "linux",
-        ["third-party//numa:numa", "third-party//liburing:uring", "third-party//tbb:tbb"],
-    ),
-    (
-        "macos",
-        ["third-party//tbb:tbb"],
+        ["third-party//numa:numa"],
    ),
 ]

@@ -57,29 +55,18 @@ ROCKSDB_OS_PREPROCESSOR_FLAGS = [
            "-DROCKSDB_SCHED_GETCPU_PRESENT",
            "-DROCKSDB_IOURING_PRESENT",
            "-DHAVE_SSE42",
-            "-DLIBURING",
            "-DNUMA",
-            "-DROCKSDB_PLATFORM_POSIX",
-            "-DROCKSDB_LIB_IO_POSIX",
-            "-DTBB",
        ],
    ),
    (
        "macos",
-        [
-            "-DOS_MACOSX",
-            "-DROCKSDB_PLATFORM_POSIX",
-            "-DROCKSDB_LIB_IO_POSIX",
-            "-DTBB",
-        ],
-    ),
-    (
-        "windows",
-        [ "-DOS_WIN", "-DWIN32", "-D_MBCS", "-DWIN64", "-DNOMINMAX" ]
+        ["-DOS_MACOSX"],
    ),
 ]

 ROCKSDB_PREPROCESSOR_FLAGS = [
+    "-DROCKSDB_PLATFORM_POSIX",
+    "-DROCKSDB_LIB_IO_POSIX",
    "-DROCKSDB_SUPPORT_THREAD_LOCAL",

    # Flags to enable libs we include
@@ -90,6 +77,8 @@ ROCKSDB_PREPROCESSOR_FLAGS = [
    "-DZSTD",
    "-DZSTD_STATIC_LINKING_ONLY",
    "-DGFLAGS=gflags",
+    "-DTBB",
+    "-DLIBURING",

    # Added missing flags from output of build_detect_platform
    "-DROCKSDB_BACKTRACE",
@@ -126,11 +115,6 @@ ROCKSDB_OS_DEPS += ([(
    "linux",
    ["third-party//jemalloc:headers"],
 )] if sanitizer == "" else [])
-
-ROCKSDB_LIB_DEPS = [
-    ":rocksdb_lib",
-    ":rocksdb_test_lib",
-] if not is_opt_mode else [":rocksdb_lib"]
 """


@@ -145,34 +129,18 @@ cpp_library(
    os_preprocessor_flags = ROCKSDB_OS_PREPROCESSOR_FLAGS,
    preprocessor_flags = ROCKSDB_PREPROCESSOR_FLAGS,
    deps = [{deps}],
-    external_deps = ROCKSDB_EXTERNAL_DEPS{extra_external_deps},
-    link_whole = {link_whole},
-)
-"""
-
-rocksdb_library_template = """
-cpp_library(
-    name = "{name}",
-    srcs = [{srcs}],
-    {headers_attr_prefix}headers = {headers},
-    arch_preprocessor_flags = ROCKSDB_ARCH_PREPROCESSOR_FLAGS,
-    compiler_flags = ROCKSDB_COMPILER_FLAGS,
-    os_deps = ROCKSDB_OS_DEPS,
-    os_preprocessor_flags = ROCKSDB_OS_PREPROCESSOR_FLAGS,
-    preprocessor_flags = ROCKSDB_PREPROCESSOR_FLAGS,
-    deps = ROCKSDB_LIB_DEPS,
    external_deps = ROCKSDB_EXTERNAL_DEPS,
 )
 """

 binary_template = """
 cpp_binary(
-    name = "{name}",
-    srcs = [{srcs}],
+    name = "%s",
+    srcs = [%s],
    arch_preprocessor_flags = ROCKSDB_ARCH_PREPROCESSOR_FLAGS,
    compiler_flags = ROCKSDB_COMPILER_FLAGS,
    preprocessor_flags = ROCKSDB_PREPROCESSOR_FLAGS,
-    deps = [{deps}],
+    deps = [%s],
    external_deps = ROCKSDB_EXTERNAL_DEPS,
 )
 """
@@ -189,23 +157,24 @@ test_cfg_template = """    [
 unittests_template = """
 # [test_name, test_src, test_type, extra_deps, extra_compiler_flags]
 ROCKS_TESTS = [
-{tests}]
+%s]

 # Generate a test rule for each entry in ROCKS_TESTS
 # Do not build the tests in opt mode, since SyncPoint and other test code
 # will not be included.
 [
-    cpp_unittest(
-        name = test_name,
-        srcs = [test_cc],
-        arch_preprocessor_flags = ROCKSDB_ARCH_PREPROCESSOR_FLAGS,
-        os_preprocessor_flags = ROCKSDB_OS_PREPROCESSOR_FLAGS,
-        compiler_flags = ROCKSDB_COMPILER_FLAGS + extra_compiler_flags,
-        preprocessor_flags = ROCKSDB_PREPROCESSOR_FLAGS,
-        deps = [":rocksdb_test_lib"] + extra_deps,
-        external_deps = ROCKSDB_EXTERNAL_DEPS + [
-            ("googletest", None, "gtest"),
-        ],
+    test_binary(
+        extra_compiler_flags = extra_compiler_flags,
+        extra_deps = extra_deps,
+        parallelism = parallelism,
+        rocksdb_arch_preprocessor_flags = ROCKSDB_ARCH_PREPROCESSOR_FLAGS,
+        rocksdb_compiler_flags = ROCKSDB_COMPILER_FLAGS,
+        rocksdb_external_deps = ROCKSDB_EXTERNAL_DEPS,
+        rocksdb_os_deps = ROCKSDB_OS_DEPS,
+        rocksdb_os_preprocessor_flags = ROCKSDB_OS_PREPROCESSOR_FLAGS,
+        rocksdb_preprocessor_flags = ROCKSDB_PREPROCESSOR_FLAGS,
+        test_cc = test_cc,
+        test_name = test_name,
    )
    for test_name, test_cc, parallelism, extra_deps, extra_compiler_flags in ROCKS_TESTS
    if not is_opt_mode
@@ -9,7 +9,6 @@
 #   PLATFORM_LDFLAGS            Linker flags
 #   JAVA_LDFLAGS                Linker flags for RocksDBJava
 #   JAVA_STATIC_LDFLAGS         Linker flags for RocksDBJava static build
-#   JAVAC_ARGS                  Arguments for javac
 #   PLATFORM_SHARED_EXT         Extension for shared libraries
 #   PLATFORM_SHARED_LDFLAGS     Flags for building shared library
 #   PLATFORM_SHARED_CFLAGS      Flags for compiling objects for shared library
@@ -28,7 +27,6 @@
 #       -DZSTD                      if the ZSTD library is present
 #       -DNUMA                      if the NUMA library is present
 #       -DTBB                       if the TBB library is present
-#       -DMEMKIND                   if the memkind library is present
 #
 # Using gflags in rocksdb:
 # Our project depends on gflags, which requires users to take some extra steps
@@ -60,16 +58,8 @@ if [ -z "$ROCKSDB_NO_FBCODE" -a -d /mnt/gvfs/third-party ]; then
      source "$PWD/build_tools/fbcode_config4.8.1.sh"
    elif [ -n "$ROCKSDB_FBCODE_BUILD_WITH_5xx" ]; then
      source "$PWD/build_tools/fbcode_config.sh"
-    elif [ -n "$ROCKSDB_FBCODE_BUILD_WITH_PLATFORM007" ]; then
-      source "$PWD/build_tools/fbcode_config_platform007.sh"
-    elif [ -n "$ROCKSDB_FBCODE_BUILD_WITH_PLATFORM009" ]; then
-      source "$PWD/build_tools/fbcode_config_platform009.sh"
-    elif [ -z "$USE_CLANG" ]; then
-        # Still use platform007 for gcc by default for build break on
-        # some hosts.
-      source "$PWD/build_tools/fbcode_config_platform007.sh"
    else
-      source "$PWD/build_tools/fbcode_config_platform009.sh"
+      source "$PWD/build_tools/fbcode_config_platform007.sh"
    fi
 fi

@@ -97,16 +87,6 @@ if test -z "$CXX"; then
    fi
 fi

-if test -z "$AR"; then
-    if [ -x "$(command -v gcc-ar)" ]; then
-        AR=gcc-ar
-    elif [ -x "$(command -v llvm-ar)" ]; then
-        AR=llvm-ar
-    else
-        AR=ar
-    fi
-fi
-
 # Detect OS
 if test -z "$TARGET_OS"; then
    TARGET_OS=`uname -s`
@@ -169,21 +149,19 @@ case "$TARGET_OS" in
        else
            PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -latomic"
        fi
-        PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lpthread -lrt -ldl"
-        if test $ROCKSDB_USE_IO_URING; then
-            # check for liburing
-            $CXX $CFLAGS -x c++ - -luring -o /dev/null 2>/dev/null  <<EOF
-              #include <liburing.h>
-              int main() {
-                struct io_uring ring;
-                io_uring_queue_init(1, &ring, 0);
-                return 0;
-              }
+        PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lpthread -lrt"
+        # check for liburing
+        $CXX $CFLAGS -x c++ - -luring -o /dev/null 2>/dev/null  <<EOF
+          #include <liburing.h>
+          int main() {
+            struct io_uring ring;
+            io_uring_queue_init(1, &ring, 0);
+            return 0;
+          }
 EOF
-            if [ "$?" = 0 ]; then
-                PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -luring"
-                COMMON_FLAGS="$COMMON_FLAGS -DROCKSDB_IOURING_PRESENT"
-            fi
+        if [ "$?" = 0 ]; then
+          PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -luring"
+          COMMON_FLAGS="$COMMON_FLAGS -DROCKSDB_IOURING_PRESENT"
        fi
        if test -z "$USE_FOLLY_DISTRIBUTED_MUTEX"; then
          USE_FOLLY_DISTRIBUTED_MUTEX=1
@@ -210,17 +188,6 @@ EOF
        PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lpthread"
        # PORT_FILES=port/freebsd/freebsd_specific.cc
        ;;
-    GNU/kFreeBSD)
-        PLATFORM=OS_GNU_KFREEBSD
-        COMMON_FLAGS="$COMMON_FLAGS -DOS_GNU_KFREEBSD"
-        if [ -z "$USE_CLANG" ]; then
-            COMMON_FLAGS="$COMMON_FLAGS -fno-builtin-memcmp"
-        else
-            PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -latomic"
-        fi
-        PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lpthread -lrt"
-        # PORT_FILES=port/gnu_kfreebsd/gnu_kfreebsd_specific.cc
-        ;;
    NetBSD)
        PLATFORM=OS_NETBSD
        COMMON_FLAGS="$COMMON_FLAGS -fno-builtin-memcmp -D_REENTRANT -DOS_NETBSD"
@@ -270,15 +237,10 @@ esac
 PLATFORM_CXXFLAGS="$PLATFORM_CXXFLAGS ${CXXFLAGS}"
 JAVA_LDFLAGS="$PLATFORM_LDFLAGS"
 JAVA_STATIC_LDFLAGS="$PLATFORM_LDFLAGS"
-JAVAC_ARGS="-source 7"

 if [ "$CROSS_COMPILE" = "true" -o "$FBCODE_BUILD" = "true" ]; then
    # Cross-compiling; do not try any compilation tests.
    # Also don't need any compilation tests if compiling on fbcode
-    if [ "$FBCODE_BUILD" = "true" ]; then
-      # Enable backtrace on fbcode since the necessary libraries are present
-      COMMON_FLAGS="$COMMON_FLAGS -DROCKSDB_BACKTRACE"
-    fi
    true
 else
    if ! test $ROCKSDB_DISABLE_FALLOCATE; then
@@ -314,32 +276,24 @@ EOF
        # Test whether gflags library is installed
        # http://gflags.github.io/gflags/
        # check if the namespace is gflags
-        if $CXX $CFLAGS -x c++ - -o /dev/null 2>/dev/null << EOF
+        $CXX $CFLAGS -x c++ - -o /dev/null 2>/dev/null << EOF
          #include <gflags/gflags.h>
-          using namespace GFLAGS_NAMESPACE;
          int main() {}
 EOF
-        then
-          COMMON_FLAGS="$COMMON_FLAGS -DGFLAGS=1"
-          PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lgflags"
-        # check if namespace is gflags
-        elif $CXX $CFLAGS -x c++ - -o /dev/null 2>/dev/null << EOF
-            #include <gflags/gflags.h>
-            using namespace gflags;
-            int main() {}
-EOF
-        then
-          COMMON_FLAGS="$COMMON_FLAGS -DGFLAGS=1 -DGFLAGS_NAMESPACE=gflags"
-          PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lgflags"
-        # check if namespace is google
-        elif $CXX $CFLAGS -x c++ - -o /dev/null 2>/dev/null << EOF
+        if [ "$?" = 0 ]; then
+            COMMON_FLAGS="$COMMON_FLAGS -DGFLAGS=1"
+            PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lgflags"
+        else
+          # check if namespace is google
+          $CXX $CFLAGS -x c++ - -o /dev/null 2>/dev/null << EOF
            #include <gflags/gflags.h>
            using namespace google;
            int main() {}
 EOF
-        then
-          COMMON_FLAGS="$COMMON_FLAGS -DGFLAGS=1 -DGFLAGS_NAMESPACE=google"
-          PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lgflags"
+          if [ "$?" = 0 ]; then
+              COMMON_FLAGS="$COMMON_FLAGS -DGFLAGS=google"
+              PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lgflags"
+          fi
        fi
    fi

@@ -468,22 +422,6 @@ EOF
        fi
    fi

-    if ! test $ROCKSDB_DISABLE_MEMKIND; then
-        # Test whether memkind library is installed
-        $CXX $CFLAGS $COMMON_FLAGS -lmemkind -x c++ - -o /dev/null 2>/dev/null  <<EOF
-          #include <memkind.h>
-          int main() {
-            memkind_malloc(MEMKIND_DAX_KMEM, 1024);
-            return 0;
-          }
-EOF
-        if [ "$?" = 0 ]; then
-            COMMON_FLAGS="$COMMON_FLAGS -DMEMKIND"
-            PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lmemkind"
-            JAVA_LDFLAGS="$JAVA_LDFLAGS -lmemkind"
-        fi
-    fi
-
    if ! test $ROCKSDB_DISABLE_PTHREAD_MUTEX_ADAPTIVE_NP; then
        # Test whether PTHREAD_MUTEX_ADAPTIVE_NP mutex type is available
        $CXX $CFLAGS -x c++ - -o /dev/null 2>/dev/null  <<EOF
@@ -568,20 +506,6 @@ EOF
        fi
    fi

-    if ! test $ROCKSDB_DISABLE_AUXV_GETAUXVAL; then
-        # Test whether getauxval is supported
-        $CXX $CFLAGS -x c++ - -o /dev/null 2>/dev/null  <<EOF
-          #include <sys/auxv.h>
-          int main() {
-            uint64_t auxv = getauxval(AT_HWCAP);
-            (void)auxv;
-          }
-EOF
-        if [ "$?" = 0 ]; then
-            COMMON_FLAGS="$COMMON_FLAGS -DROCKSDB_AUXV_GETAUXVAL_PRESENT"
-        fi
-    fi
-
    if ! test $ROCKSDB_DISABLE_ALIGNED_NEW; then
        # Test whether c++17 aligned-new is supported
        $CXX $PLATFORM_CXXFLAGS -faligned-new -x c++ - -o /dev/null 2>/dev/null <<EOF
@@ -649,13 +573,6 @@ else
  if test "$USE_SSE"; then
    TRY_SSE_ETC="1"
  fi
-
-  if [[ "${PLATFORM}" == "OS_MACOSX" ]]; then
-    # For portability compile for macOS 10.12 (2016) or newer
-    COMMON_FLAGS="$COMMON_FLAGS -mmacosx-version-min=10.12"
-    PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -mmacosx-version-min=10.12"
-    PLATFORM_SHARED_LDFLAGS="$PLATFORM_SHARED_LDFLAGS -mmacosx-version-min=10.12"
-  fi
 fi

 if test "$TRY_SSE_ETC"; then
@@ -665,18 +582,11 @@ if test "$TRY_SSE_ETC"; then
  # It doesn't even really check that your current CPU is compatible.
  #
  # SSE4.2 available since nehalem, ca. 2008-2010
-  # Includes POPCNT for BitsSetToOne, BitParity
  TRY_SSE42="-msse4.2"
  # PCLMUL available since westmere, ca. 2010-2011
  TRY_PCLMUL="-mpclmul"
  # AVX2 available since haswell, ca. 2013-2015
  TRY_AVX2="-mavx2"
-  # BMI available since haswell, ca. 2013-2015
-  # Primarily for TZCNT for CountTrailingZeroBits
-  TRY_BMI="-mbmi"
-  # LZCNT available since haswell, ca. 2013-2015
-  # For FloorLog2
-  TRY_LZCNT="-mlzcnt"
 fi

 $CXX $PLATFORM_CXXFLAGS $COMMON_FLAGS $TRY_SSE42 -x c++ - -o /dev/null 2>/dev/null <<EOF
@@ -725,34 +635,6 @@ elif test "$USE_SSE"; then
  echo "warning: USE_SSE specified but compiler could not use AVX2 intrinsics, disabling" >&2
 fi

-$CXX $PLATFORM_CXXFLAGS $COMMON_FLAGS $TRY_BMI -x c++ - -o /dev/null 2>/dev/null <<EOF
-  #include <cstdint>
-  #include <immintrin.h>
-  int main(int argc, char *argv[]) {
-    (void)argv;
-    return (int)_tzcnt_u64((uint64_t)argc);
-  }
-EOF
-if [ "$?" = 0 ]; then
-  COMMON_FLAGS="$COMMON_FLAGS $TRY_BMI -DHAVE_BMI"
-elif test "$USE_SSE"; then
-  echo "warning: USE_SSE specified but compiler could not use BMI intrinsics, disabling" >&2
-fi
-
-$CXX $PLATFORM_CXXFLAGS $COMMON_FLAGS $TRY_LZCNT -x c++ - -o /dev/null 2>/dev/null <<EOF
-  #include <cstdint>
-  #include <immintrin.h>
-  int main(int argc, char *argv[]) {
-    (void)argv;
-    return (int)_lzcnt_u64((uint64_t)argc);
-  }
-EOF
-if [ "$?" = 0 ]; then
-  COMMON_FLAGS="$COMMON_FLAGS $TRY_LZCNT -DHAVE_LZCNT"
-elif test "$USE_SSE"; then
-  echo "warning: USE_SSE specified but compiler could not use LZCNT intrinsics, disabling" >&2
-fi
-
 $CXX $PLATFORM_CXXFLAGS $COMMON_FLAGS -x c++ - -o /dev/null 2>/dev/null <<EOF
  #include <cstdint>
  int main() {
@@ -784,7 +666,6 @@ EOF
  fi
 fi

-
 if [ "$FBCODE_BUILD" != "true" -a "$PLATFORM" = OS_LINUX ]; then
  $CXX $COMMON_FLAGS $PLATFORM_SHARED_CFLAGS -x c++ -c - -o test_dl.o 2>/dev/null <<EOF
  void dummy_func() {}
@@ -809,12 +690,10 @@ ROCKSDB_PATCH=`build_tools/version.sh patch`

 echo "CC=$CC" >> "$OUTPUT"
 echo "CXX=$CXX" >> "$OUTPUT"
-echo "AR=$AR" >> "$OUTPUT"
 echo "PLATFORM=$PLATFORM" >> "$OUTPUT"
 echo "PLATFORM_LDFLAGS=$PLATFORM_LDFLAGS" >> "$OUTPUT"
 echo "JAVA_LDFLAGS=$JAVA_LDFLAGS" >> "$OUTPUT"
 echo "JAVA_STATIC_LDFLAGS=$JAVA_STATIC_LDFLAGS" >> "$OUTPUT"
-echo "JAVAC_ARGS=$JAVAC_ARGS" >> "$OUTPUT"
 echo "VALGRIND_VER=$VALGRIND_VER" >> "$OUTPUT"
 echo "PLATFORM_CCFLAGS=$PLATFORM_CCFLAGS" >> "$OUTPUT"
 echo "PLATFORM_CXXFLAGS=$PLATFORM_CXXFLAGS" >> "$OUTPUT"
@@ -1,20 +0,0 @@
-# Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
-GCC_BASE=/mnt/gvfs/third-party2/gcc/1795efe5f06778c15a92c8f9a2aba5dc496d9d4d/9.x/centos7-native/3bed279
-CLANG_BASE=/mnt/gvfs/third-party2/llvm-fb/7318eaac22659b6ff2fe43918e4b69fd0772a8a7/9.0.0/platform009/651ee30
-LIBGCC_BASE=/mnt/gvfs/third-party2/libgcc/4959b39cfbe5965a37c861c4c327fa7c5c759b87/9.x/platform009/9202ce7
-GLIBC_BASE=/mnt/gvfs/third-party2/glibc/45ce3375cdc77ecb2520bbf8f0ecddd3f98efd7a/2.30/platform009/f259413
-SNAPPY_BASE=/mnt/gvfs/third-party2/snappy/be4de3205e029101b18aa8103daa696c2bef3b19/1.1.3/platform009/7f3b187
-ZLIB_BASE=/mnt/gvfs/third-party2/zlib/3c160ac5c67e257501e24c6c1d00ad5e01d73db6/1.2.8/platform009/7f3b187
-BZIP2_BASE=/mnt/gvfs/third-party2/bzip2/73a237ac5bc0a5f5d67b39b8d253cfebaab88684/1.0.6/platform009/7f3b187
-LZ4_BASE=/mnt/gvfs/third-party2/lz4/ec6573523b0ce55ef6373a4801189027cf07bb2c/1.9.1/platform009/7f3b187
-ZSTD_BASE=/mnt/gvfs/third-party2/zstd/64c58a207d2495e83abc57a500a956df09b79a7c/1.4.x/platform009/ba86d1f
-GFLAGS_BASE=/mnt/gvfs/third-party2/gflags/824d0a8a5abb5b121afd1b35fc3896407ea50092/2.2.0/platform009/7f3b187
-JEMALLOC_BASE=/mnt/gvfs/third-party2/jemalloc/d9aef9feb850b168a68736420f217b01cce11a89/master/platform009/c305944
-NUMA_BASE=/mnt/gvfs/third-party2/numa/0af65f71e23a67bf65dc91b11f95caa39325c432/2.0.11/platform009/7f3b187
-LIBUNWIND_BASE=/mnt/gvfs/third-party2/libunwind/02486dac347645d31dce116f44e1de3177315be2/1.4/platform009/5191652
-TBB_BASE=/mnt/gvfs/third-party2/tbb/2e0ec671e550bfca347300bf3f789d9c0fff24ad/2018_U5/platform009/7f3b187
-LIBURING_BASE=/mnt/gvfs/third-party2/liburing/70dbd9cfee63a25611417d09433a86d7711b3990/20200729/platform009/7f3b187
-KERNEL_HEADERS_BASE=/mnt/gvfs/third-party2/kernel-headers/32b8a2407b634df3f8f948ba373fc4acc6a18296/fb/platform009/da39a3e
-BINUTILS_BASE=/mnt/gvfs/third-party2/binutils/08634589372fa5f237bfd374e8c644a8364e78c1/2.32/platform009/ba86d1f/
-VALGRIND_BASE=/mnt/gvfs/third-party2/valgrind/6ae525939ad02e5e676855082fbbc7828dbafeac/3.15.0/platform009/7f3b187
-LUA_BASE=/mnt/gvfs/third-party2/lua/162efd9561a3d21f6869f4814011e9cf1b3ff4dc/5.3.4/platform009/a6271c4
@@ -109,7 +109,6 @@ if [ -z "$USE_CLANG" ]; then
  # gcc
  CC="$GCC_BASE/bin/gcc"
  CXX="$GCC_BASE/bin/g++"
-  AR="$GCC_BASE/bin/gcc-ar"

  CFLAGS+=" -B$BINUTILS/gold"
  CFLAGS+=" -isystem $GLIBC_INCLUDE"
@@ -120,7 +119,6 @@ else
  CLANG_INCLUDE="$CLANG_LIB/clang/stable/include"
  CC="$CLANG_BIN/clang"
  CXX="$CLANG_BIN/clang++"
-  AR="$CLANG_BIN/llvm-ar"

  KERNEL_HEADERS_INCLUDE="$KERNEL_HEADERS_BASE/include"

@@ -69,7 +69,6 @@ if [ -z "$USE_CLANG" ]; then
  # gcc
  CC="$GCC_BASE/bin/gcc"
  CXX="$GCC_BASE/bin/g++"
-  CXX="$GCC_BASE/bin/gcc-ar"

  CFLAGS="-B$BINUTILS/gold -m64 -mtune=generic"
  CFLAGS+=" -isystem $GLIBC_INCLUDE"
@@ -82,7 +81,6 @@ else
  CLANG_INCLUDE="$CLANG_LIB/clang/*/include"
  CC="$CLANG_BIN/clang"
  CXX="$CLANG_BIN/clang++"
-  AR="$CLANG_BIN/llvm-ar"

  KERNEL_HEADERS_INCLUDE="$KERNEL_HEADERS_BASE/include/"

@@ -118,7 +118,6 @@ if [ -z "$USE_CLANG" ]; then
  # gcc
  CC="$GCC_BASE/bin/gcc"
  CXX="$GCC_BASE/bin/g++"
-  AR="$GCC_BASE/bin/gcc-ar"

  CFLAGS+=" -B$BINUTILS/gold"
  CFLAGS+=" -isystem $LIBGCC_INCLUDE"
@@ -129,7 +128,6 @@ else
  CLANG_INCLUDE="$CLANG_LIB/clang/stable/include"
  CC="$CLANG_BIN/clang"
  CXX="$CLANG_BIN/clang++"
-  AR="$CLANG_BIN/llvm-ar"

  KERNEL_HEADERS_INCLUDE="$KERNEL_HEADERS_BASE/include"

@@ -1,172 +0,0 @@
-#!/bin/sh
-# Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
-#
-# Set environment variables so that we can compile rocksdb using
-# fbcode settings.  It uses the latest g++ and clang compilers and also
-# uses jemalloc
-# Environment variables that change the behavior of this script:
-# PIC_BUILD -- if true, it will only take pic versions of libraries from fbcode. libraries that don't have pic variant will not be included
-
-
-BASEDIR=`dirname $BASH_SOURCE`
-source "$BASEDIR/dependencies_platform009.sh"
-
-CFLAGS=""
-
-# libgcc
-LIBGCC_INCLUDE="$LIBGCC_BASE/include/c++/9.3.0"
-LIBGCC_LIBS=" -L $LIBGCC_BASE/lib"
-
-# glibc
-GLIBC_INCLUDE="$GLIBC_BASE/include"
-GLIBC_LIBS=" -L $GLIBC_BASE/lib"
-
-# snappy
-SNAPPY_INCLUDE=" -I $SNAPPY_BASE/include/"
-if test -z $PIC_BUILD; then
-  SNAPPY_LIBS=" $SNAPPY_BASE/lib/libsnappy.a"
-else
-  SNAPPY_LIBS=" $SNAPPY_BASE/lib/libsnappy_pic.a"
-fi
-CFLAGS+=" -DSNAPPY"
-
-if test -z $PIC_BUILD; then
-  # location of zlib headers and libraries
-  ZLIB_INCLUDE=" -I $ZLIB_BASE/include/"
-  ZLIB_LIBS=" $ZLIB_BASE/lib/libz.a"
-  CFLAGS+=" -DZLIB"
-
-  # location of bzip headers and libraries
-  BZIP_INCLUDE=" -I $BZIP2_BASE/include/"
-  BZIP_LIBS=" $BZIP2_BASE/lib/libbz2.a"
-  CFLAGS+=" -DBZIP2"
-
-  LZ4_INCLUDE=" -I $LZ4_BASE/include/"
-  LZ4_LIBS=" $LZ4_BASE/lib/liblz4.a"
-  CFLAGS+=" -DLZ4"
-fi
-
-ZSTD_INCLUDE=" -I $ZSTD_BASE/include/"
-if test -z $PIC_BUILD; then
-  ZSTD_LIBS=" $ZSTD_BASE/lib/libzstd.a"
-else
-  ZSTD_LIBS=" $ZSTD_BASE/lib/libzstd_pic.a"
-fi
-CFLAGS+=" -DZSTD"
-
-# location of gflags headers and libraries
-GFLAGS_INCLUDE=" -I $GFLAGS_BASE/include/"
-if test -z $PIC_BUILD; then
-  GFLAGS_LIBS=" $GFLAGS_BASE/lib/libgflags.a"
-else
-  GFLAGS_LIBS=" $GFLAGS_BASE/lib/libgflags_pic.a"
-fi
-CFLAGS+=" -DGFLAGS=gflags"
-
-# location of jemalloc
-JEMALLOC_INCLUDE=" -I $JEMALLOC_BASE/include/"
-JEMALLOC_LIB=" $JEMALLOC_BASE/lib/libjemalloc.a"
-
-if test -z $PIC_BUILD; then
-  # location of numa
-  NUMA_INCLUDE=" -I $NUMA_BASE/include/"
-  NUMA_LIB=" $NUMA_BASE/lib/libnuma.a"
-  CFLAGS+=" -DNUMA"
-
-  # location of libunwind
-  LIBUNWIND="$LIBUNWIND_BASE/lib/libunwind.a"
-fi
-
-# location of TBB
-TBB_INCLUDE=" -isystem $TBB_BASE/include/"
-if test -z $PIC_BUILD; then
-  TBB_LIBS="$TBB_BASE/lib/libtbb.a"
-else
-  TBB_LIBS="$TBB_BASE/lib/libtbb_pic.a"
-fi
-CFLAGS+=" -DTBB"
-
-# location of LIBURING
-LIBURING_INCLUDE=" -isystem $LIBURING_BASE/include/"
-if test -z $PIC_BUILD; then
-  LIBURING_LIBS="$LIBURING_BASE/lib/liburing.a"
-else
-  LIBURING_LIBS="$LIBURING_BASE/lib/liburing_pic.a"
-fi
-CFLAGS+=" -DLIBURING"
-
-test "$USE_SSE" || USE_SSE=1
-export USE_SSE
-test "$PORTABLE" || PORTABLE=1
-export PORTABLE
-
-BINUTILS="$BINUTILS_BASE/bin"
-AR="$BINUTILS/ar"
-
-DEPS_INCLUDE="$SNAPPY_INCLUDE $ZLIB_INCLUDE $BZIP_INCLUDE $LZ4_INCLUDE $ZSTD_INCLUDE $GFLAGS_INCLUDE $NUMA_INCLUDE $TBB_INCLUDE $LIBURING_INCLUDE"
-
-STDLIBS="-L $GCC_BASE/lib64"
-
-CLANG_BIN="$CLANG_BASE/bin"
-CLANG_LIB="$CLANG_BASE/lib"
-CLANG_SRC="$CLANG_BASE/../../src"
-
-CLANG_ANALYZER="$CLANG_BIN/clang++"
-CLANG_SCAN_BUILD="$CLANG_SRC/llvm/clang/tools/scan-build/bin/scan-build"
-
-if [ -z "$USE_CLANG" ]; then
-  # gcc
-  CC="$GCC_BASE/bin/gcc"
-  CXX="$GCC_BASE/bin/g++"
-  AR="$GCC_BASE/bin/gcc-ar"
-
-  CFLAGS+=" -B$BINUTILS/gold"
-  CFLAGS+=" -isystem $LIBGCC_INCLUDE"
-  CFLAGS+=" -isystem $GLIBC_INCLUDE"
-  JEMALLOC=1
-else
-  # clang
-  CLANG_INCLUDE="$CLANG_LIB/clang/stable/include"
-  CC="$CLANG_BIN/clang"
-  CXX="$CLANG_BIN/clang++"
-  AR="$CLANG_BIN/llvm-ar"
-
-  KERNEL_HEADERS_INCLUDE="$KERNEL_HEADERS_BASE/include"
-
-  CFLAGS+=" -B$BINUTILS/gold -nostdinc -nostdlib"
-  CFLAGS+=" -isystem $LIBGCC_BASE/include/c++/9.x "
-  CFLAGS+=" -isystem $LIBGCC_BASE/include/c++/9.x/x86_64-facebook-linux "
-  CFLAGS+=" -isystem $GLIBC_INCLUDE"
-  CFLAGS+=" -isystem $LIBGCC_INCLUDE"
-  CFLAGS+=" -isystem $CLANG_INCLUDE"
-  CFLAGS+=" -isystem $KERNEL_HEADERS_INCLUDE/linux "
-  CFLAGS+=" -isystem $KERNEL_HEADERS_INCLUDE "
-  CFLAGS+=" -Wno-expansion-to-defined "
-  CXXFLAGS="-nostdinc++"
-fi
-
-CFLAGS+=" $DEPS_INCLUDE"
-CFLAGS+=" -DROCKSDB_PLATFORM_POSIX -DROCKSDB_LIB_IO_POSIX -DROCKSDB_FALLOCATE_PRESENT -DROCKSDB_MALLOC_USABLE_SIZE -DROCKSDB_RANGESYNC_PRESENT -DROCKSDB_SCHED_GETCPU_PRESENT -DROCKSDB_SUPPORT_THREAD_LOCAL -DHAVE_SSE42 -DROCKSDB_IOURING_PRESENT"
-CXXFLAGS+=" $CFLAGS"
-
-EXEC_LDFLAGS=" $SNAPPY_LIBS $ZLIB_LIBS $BZIP_LIBS $LZ4_LIBS $ZSTD_LIBS $GFLAGS_LIBS $NUMA_LIB $TBB_LIBS $LIBURING_LIBS"
-EXEC_LDFLAGS+=" -B$BINUTILS/gold"
-EXEC_LDFLAGS+=" -Wl,--dynamic-linker,/usr/local/fbcode/platform009/lib/ld.so"
-EXEC_LDFLAGS+=" $LIBUNWIND"
-EXEC_LDFLAGS+=" -Wl,-rpath=/usr/local/fbcode/platform009/lib"
-# required by libtbb
-EXEC_LDFLAGS+=" -ldl"
-
-PLATFORM_LDFLAGS="$LIBGCC_LIBS $GLIBC_LIBS $STDLIBS -lgcc -lstdc++"
-
-EXEC_LDFLAGS_SHARED="$SNAPPY_LIBS $ZLIB_LIBS $BZIP_LIBS $LZ4_LIBS $ZSTD_LIBS $GFLAGS_LIBS $TBB_LIBS $LIBURING_LIBS"
-
-VALGRIND_VER="$VALGRIND_BASE/bin/"
-
-# lua not supported because it's on track for deprecation, I think
-LUA_PATH=
-LUA_LIB=
-
-USE_FOLLY_DISTRIBUTED_MUTEX=1
-
-export CC CXX AR CFLAGS CXXFLAGS EXEC_LDFLAGS EXEC_LDFLAGS_SHARED VALGRIND_VER JEMALLOC_LIB JEMALLOC_INCLUDE CLANG_ANALYZER CLANG_SCAN_BUILD LUA_PATH LUA_LIB
@@ -2,99 +2,41 @@
 # Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
 # If clang_format_diff.py command is not specfied, we assume we are able to
 # access directly without any path.
+if [ -z $CLANG_FORMAT_DIFF ]
+then
+CLANG_FORMAT_DIFF="clang-format-diff.py"
+fi

-print_usage () {
-  echo "Usage:"
-  echo "format-diff.sh [OPTIONS]"
-  echo "-c: check only."
-  echo "-h: print this message."
-}
+# Check clang-format-diff.py
+if ! which $CLANG_FORMAT_DIFF &> /dev/null
+then
+  echo "You didn't have clang-format-diff.py and/or clang-format available in your computer!"
+  echo "You can download clang-format-diff.py by running: "
+  echo "    curl --location http://goo.gl/iUW1u2 -o ${CLANG_FORMAT_DIFF}"
+  echo "You can download clang-format by running:"
+  echo "    brew install clang-format"
+  echo "  Or"
+  echo "    apt install clang-format"
+  echo "  This might work too:"
+  echo "    yum install git-clang-format"
+  echo "Then, move both files (i.e. ${CLANG_FORMAT_DIFF} and clang-format) to some directory within PATH=${PATH}"
+  echo "and make sure ${CLANG_FORMAT_DIFF} is executable."
+  exit 128
+fi

-while getopts ':ch' OPTION; do
-  case "$OPTION" in
-    c)
-      CHECK_ONLY=1
-      ;;
-    h)
-      print_usage
-      exit 1
-      ;;
-    ?)
-      print_usage
-      exit 1
-      ;;
-  esac
-done
+# Check argparse, a library that clang-format-diff.py requires.
+python 2>/dev/null << EOF
+import argparse
+EOF

-REPO_ROOT="$(git rev-parse --show-toplevel)"
-
-if [ "$CLANG_FORMAT_DIFF" ]; then
-  echo "Note: CLANG_FORMAT_DIFF='$CLANG_FORMAT_DIFF'"
-  # Dry run to confirm dependencies like argparse
-  if $CLANG_FORMAT_DIFF --help >/dev/null < /dev/null; then
-    true #Good
-  else
-    exit 128
-  fi
-else
-  # First try directly executing the possibilities
-  if clang-format-diff.py --help &> /dev/null < /dev/null; then
-    CLANG_FORMAT_DIFF=clang-format-diff.py
-  elif $REPO_ROOT/clang-format-diff.py --help &> /dev/null < /dev/null; then
-    CLANG_FORMAT_DIFF=$REPO_ROOT/clang-format-diff.py
-  else
-    # This probably means we need to directly invoke the interpreter.
-    # But first find clang-format-diff.py
-    if [ -f "$REPO_ROOT/clang-format-diff.py" ]; then
-      CFD_PATH="$REPO_ROOT/clang-format-diff.py"
-    elif which clang-format-diff.py &> /dev/null; then
-      CFD_PATH="$(which clang-format-diff.py)"
-    else
-      echo "You didn't have clang-format-diff.py and/or clang-format available in your computer!"
-      echo "You can download clang-format-diff.py by running: "
-      echo "    curl --location http://goo.gl/iUW1u2 -o ${CLANG_FORMAT_DIFF}"
-      echo "You can download clang-format by running:"
-      echo "    brew install clang-format"
-      echo "  Or"
-      echo "    apt install clang-format"
-      echo "  This might work too:"
-      echo "    yum install git-clang-format"
-      echo "Then, move both files (i.e. ${CLANG_FORMAT_DIFF} and clang-format) to some directory within PATH=${PATH}"
-      echo "and make sure ${CLANG_FORMAT_DIFF} is executable."
-      exit 128
-    fi
-    # Check argparse pre-req on interpreter, or it will fail
-    if echo import argparse | ${PYTHON:-python3}; then
-      true # Good
-    else
-      echo "To run clang-format-diff.py, we'll need the library "argparse" to be"
-      echo "installed. You can try either of the follow ways to install it:"
-      echo "  1. Manually download argparse: https://pypi.python.org/pypi/argparse"
-      echo "  2. easy_install argparse (if you have easy_install)"
-      echo "  3. pip install argparse (if you have pip)"
-      exit 129
-    fi
-    # Unfortunately, some machines have a Python2 clang-format-diff.py
-    # installed but only a Python3 interpreter installed. Rather than trying
-    # different Python versions that might be installed, we can try migrating
-    # the code to Python3 if it looks like Python2
-    if grep -q "print '" "$CFD_PATH" && \
-       ${PYTHON:-python3} --version | grep -q 'ython 3'; then
-      if [ ! -f "$REPO_ROOT/.py3/clang-format-diff.py" ]; then
-        echo "Migrating $CFD_PATH to Python3 in a hidden file"
-        mkdir -p "$REPO_ROOT/.py3"
-        ${PYTHON:-python3} -m lib2to3 -w -n -o "$REPO_ROOT/.py3" "$CFD_PATH" > /dev/null || exit 128
-      fi
-      CFD_PATH="$REPO_ROOT/.py3/clang-format-diff.py"
-    fi
-    CLANG_FORMAT_DIFF="${PYTHON:-python3} $CFD_PATH"
-    # This had better work after all those checks
-    if $CLANG_FORMAT_DIFF --help >/dev/null < /dev/null; then
-      true #Good
-    else
-      exit 128
-    fi
-  fi
+if [ "$?" != 0 ]
+then
+  echo "To run clang-format-diff.py, we'll need the library "argparse" to be"
+  echo "installed. You can try either of the follow ways to install it:"
+  echo "  1. Manually download argparse: https://pypi.python.org/pypi/argparse"
+  echo "  2. easy_install argparse (if you have easy_install)"
+  echo "  3. pip install argparse (if you have pip)"
+  exit 129
 fi

 # TODO(kailiu) following work is not complete since we still need to figure
@@ -145,14 +87,6 @@ if [ -z "$diffs" ]
 then
  echo "Nothing needs to be reformatted!"
  exit 0
-elif [ $CHECK_ONLY ]
-then
-  echo "Your change has unformatted code. Please run make format!"
-  if [ $VERBOSE_CHECK ]; then
-    clang-format --version
-    echo "$diffs"
-  fi
-  exit 1
 fi

 # Highlight the insertion/deletion from the clang-format-diff.py's output
@@ -187,7 +121,7 @@ if [ -z "$uncommitted_code" ]
 then
  git diff -U0 "$FORMAT_UPSTREAM_MERGE_BASE" | $CLANG_FORMAT_DIFF -i -p 1
 else
-  git diff -U0 HEAD | $CLANG_FORMAT_DIFF -i -p 1
+  git diff -U0 HEAD^ | $CLANG_FORMAT_DIFF -i -p 1
 fi
 echo "Files reformatted!"

@@ -5801,7 +5801,7 @@ sub workdir {
 		    . "-" . $self->seq();
 	    } else {
 		$workdir = $opt::workdir;
-		# Rsync treats /./ special. We don't want that
+		# Rsync treats /./ special. We dont want that
 		$workdir =~ s:/\./:/:g; # Remove /./
 		$workdir =~ s:/+$::; # Remove ending / if any
 		$workdir =~ s:^\./::g; # Remove starting ./ if any
@@ -103,26 +103,31 @@ function main() {
  gem_install fpm

  make static_lib
-  LIBDIR=/usr/lib
-  if [[ $FPM_OUTPUT = "rpm" ]]; then
-      LIBDIR=$(rpm --eval '%_libdir')
-  fi
+  make install INSTALL_PATH=package

-  rm -rf package
-  make install DESTDIR=package PREFIX=/usr LIBDIR=$LIBDIR
+  cd package
+
+  LIB_DIR=lib
+  if [[ -z "$ARCH" ]]; then
+      ARCH=$(getconf LONG_BIT)
+  fi
+  if [[ ("$FPM_OUTPUT" = "rpm") && ($ARCH -eq 64) ]]; then
+      mv lib lib64
+      LIB_DIR=lib64
+  fi

  fpm \
    -s dir \
    -t $FPM_OUTPUT \
-    -C package \
    -n rocksdb \
    -v $1 \
+    --prefix /usr \
    --url http://rocksdb.org/ \
    -m rocksdb@fb.com \
    --license BSD \
    --vendor Facebook \
    --description "RocksDB is an embeddable persistent key-value store for fast storage." \
-    usr
+    include $LIB_DIR
 }

 # shellcheck disable=SC2068
@@ -378,7 +378,7 @@ function send_to_ods {
    echo >&2 "ERROR: Key $key doesn't have a value."
    return
  fi
-  curl --silent "https://www.intern.facebook.com/intern/agent/ods_set.php?entity=rocksdb_build$git_br&key=$key&value=$value" \
+  curl -s "https://www.intern.facebook.com/intern/agent/ods_set.php?entity=rocksdb_build$git_br&key=$key&value=$value" \
    --connect-timeout 60
 }

@@ -414,68 +414,7 @@ STRESS_CRASH_TEST_COMMANDS="[
                'shell':'$SHM $DEBUG $NON_TSAN_CRASH make J=1 crash_test || $CONTRUN_NAME=crash_test $TASK_CREATION_TOOL',
                'user':'root',
                $PARSER
-            },
-            $UPLOAD_DB_DIR,
-        ],
-        $REPORT
-    }
-]"
-
-#
-# RocksDB blackbox stress/crash test
-#
-BLACKBOX_STRESS_CRASH_TEST_COMMANDS="[
-    {
-        'name':'Rocksdb Blackbox Stress and Crash Test',
-        'oncall':'$ONCALL',
-        'executeLocal': 'true',
-        'timeout': 86400,
-        'steps': [
-            $CLEANUP_ENV,
-            {
-                'name':'Build and run RocksDB debug stress tests',
-                'shell':'$SHM $DEBUG $NON_TSAN_CRASH make J=1 db_stress || $CONTRUN_NAME=db_stress $TASK_CREATION_TOOL',
-                'user':'root',
-                $PARSER
-            },
-            {
-                'name':'Build and run RocksDB debug blackbox crash tests',
-                'timeout': 86400,
-                'shell':'$SHM $DEBUG $NON_TSAN_CRASH make J=1 blackbox_crash_test || $CONTRUN_NAME=blackbox_crash_test $TASK_CREATION_TOOL',
-                'user':'root',
-                $PARSER
-            },
-            $UPLOAD_DB_DIR,
-        ],
-        $REPORT
-    }
-]"
-
-#
-# RocksDB whitebox stress/crash test
-#
-WHITEBOX_STRESS_CRASH_TEST_COMMANDS="[
-    {
-        'name':'Rocksdb Whitebox Stress and Crash Test',
-        'oncall':'$ONCALL',
-        'executeLocal': 'true',
-        'timeout': 86400,
-        'steps': [
-            $CLEANUP_ENV,
-            {
-                'name':'Build and run RocksDB debug stress tests',
-                'shell':'$SHM $DEBUG $NON_TSAN_CRASH make J=1 db_stress || $CONTRUN_NAME=db_stress $TASK_CREATION_TOOL',
-                'user':'root',
-                $PARSER
-            },
-            {
-                'name':'Build and run RocksDB debug whitebox crash tests',
-                'timeout': 86400,
-                'shell':'$SHM $DEBUG $NON_TSAN_CRASH make J=1 whitebox_crash_test || $CONTRUN_NAME=whitebox_crash_test $TASK_CREATION_TOOL',
-                'user':'root',
-                $PARSER
-            },
-            $UPLOAD_DB_DIR,
+            }
        ],
        $REPORT
    }
@@ -603,55 +542,6 @@ ASAN_CRASH_TEST_COMMANDS="[
                'user':'root',
                $PARSER
            },
-            $UPLOAD_DB_DIR,
-        ],
-        $REPORT
-    }
-]"
-
-#
-# RocksDB blackbox crash testing under address sanitizer
-#
-ASAN_BLACKBOX_CRASH_TEST_COMMANDS="[
-    {
-        'name':'Rocksdb blackbox crash test under ASAN',
-        'oncall':'$ONCALL',
-        'executeLocal': 'true',
-        'timeout': 86400,
-        'steps': [
-            $CLEANUP_ENV,
-            {
-                'name':'Build and run RocksDB debug blackbox asan_crash_test',
-                'timeout': 86400,
-                'shell':'$SHM $DEBUG $NON_TSAN_CRASH make J=1 blackbox_asan_crash_test || $CONTRUN_NAME=blackbox_asan_crash_test $TASK_CREATION_TOOL',
-                'user':'root',
-                $PARSER
-            },
-            $UPLOAD_DB_DIR,
-        ],
-        $REPORT
-    }
-]"
-
-#
-# RocksDB whitebox crash testing under address sanitizer
-#
-ASAN_WHITEBOX_CRASH_TEST_COMMANDS="[
-    {
-        'name':'Rocksdb whitebox crash test under ASAN',
-        'oncall':'$ONCALL',
-        'executeLocal': 'true',
-        'timeout': 86400,
-        'steps': [
-            $CLEANUP_ENV,
-            {
-                'name':'Build and run RocksDB debug whitebox asan_crash_test',
-                'timeout': 86400,
-                'shell':'$SHM $DEBUG $NON_TSAN_CRASH make J=1 whitebox_asan_crash_test || $CONTRUN_NAME=whitebox_asan_crash_test $TASK_CREATION_TOOL',
-                'user':'root',
-                $PARSER
-            },
-            $UPLOAD_DB_DIR,
        ],
        $REPORT
    }
@@ -727,7 +617,7 @@ UBSAN_TEST_COMMANDS="[
 ]"

 #
-# RocksDB crash testing under undefined behavior sanitizer
+# RocksDB crash testing under udnefined behavior sanitizer
 #
 UBSAN_CRASH_TEST_COMMANDS="[
    {
@@ -744,55 +634,6 @@ UBSAN_CRASH_TEST_COMMANDS="[
                'user':'root',
                $PARSER
            },
-            $UPLOAD_DB_DIR,
-        ],
-        $REPORT
-    }
-]"
-
-#
-# RocksDB crash testing under undefined behavior sanitizer
-#
-UBSAN_BLACKBOX_CRASH_TEST_COMMANDS="[
-    {
-        'name':'Rocksdb blackbox crash test under UBSAN',
-        'oncall':'$ONCALL',
-        'executeLocal': 'true',
-        'timeout': 86400,
-        'steps': [
-            $CLEANUP_ENV,
-            {
-                'name':'Build and run RocksDB debug blackbox ubsan_crash_test',
-                'timeout': 86400,
-                'shell':'$SHM $DEBUG $NON_TSAN_CRASH $CLANG make J=1 blackbox_ubsan_crash_test || $CONTRUN_NAME=blackbox_ubsan_crash_test $TASK_CREATION_TOOL',
-                'user':'root',
-                $PARSER
-            },
-            $UPLOAD_DB_DIR,
-        ],
-        $REPORT
-    }
-]"
-
-#
-# RocksDB crash testing under undefined behavior sanitizer
-#
-UBSAN_WHITEBOX_CRASH_TEST_COMMANDS="[
-    {
-        'name':'Rocksdb whitebox crash test under UBSAN',
-        'oncall':'$ONCALL',
-        'executeLocal': 'true',
-        'timeout': 86400,
-        'steps': [
-            $CLEANUP_ENV,
-            {
-                'name':'Build and run RocksDB debug whitebox ubsan_crash_test',
-                'timeout': 86400,
-                'shell':'$SHM $DEBUG $NON_TSAN_CRASH $CLANG make J=1 whitebox_ubsan_crash_test || $CONTRUN_NAME=whitebox_ubsan_crash_test $TASK_CREATION_TOOL',
-                'user':'root',
-                $PARSER
-            },
-            $UPLOAD_DB_DIR,
        ],
        $REPORT
    }
@@ -910,55 +751,6 @@ TSAN_CRASH_TEST_COMMANDS="[
                'user':'root',
                $PARSER
            },
-            $UPLOAD_DB_DIR,
-        ],
-        $REPORT
-    }
-]"
-
-#
-# RocksDB blackbox crash test under TSAN
-#
-TSAN_BLACKBOX_CRASH_TEST_COMMANDS="[
-    {
-        'name':'Rocksdb Blackbox Crash Test under TSAN',
-        'oncall':'$ONCALL',
-        'executeLocal': 'true',
-        'timeout': 86400,
-        'steps': [
-            $CLEANUP_ENV,
-            {
-                'name':'Compile and run',
-                'timeout': 86400,
-                'shell':'set -o pipefail && $SHM $DEBUG $TSAN $TSAN_CRASH CRASH_TEST_KILL_ODD=1887 make J=1 blackbox_crash_test || $CONTRUN_NAME=tsan_blackbox_crash_test $TASK_CREATION_TOOL',
-                'user':'root',
-                $PARSER
-            },
-            $UPLOAD_DB_DIR,
-        ],
-        $REPORT
-    }
-]"
-
-#
-# RocksDB whitebox crash test under TSAN
-#
-TSAN_WHITEBOX_CRASH_TEST_COMMANDS="[
-    {
-        'name':'Rocksdb Whitebox Crash Test under TSAN',
-        'oncall':'$ONCALL',
-        'executeLocal': 'true',
-        'timeout': 86400,
-        'steps': [
-            $CLEANUP_ENV,
-            {
-                'name':'Compile and run',
-                'timeout': 86400,
-                'shell':'set -o pipefail && $SHM $DEBUG $TSAN $TSAN_CRASH CRASH_TEST_KILL_ODD=1887 make J=1 whitebox_crash_test || $CONTRUN_NAME=tsan_whitebox_crash_test $TASK_CREATION_TOOL',
-                'user':'root',
-                $PARSER
-            },
-            $UPLOAD_DB_DIR,
        ],
        $REPORT
    }
@@ -1022,8 +814,6 @@ run_format_compatible()
  rm -rf /dev/shm/rocksdb
  mkdir /dev/shm/rocksdb

-  export https_proxy="fwdproxy:8080"
-  
  tools/check_format_compatible.sh
 }

@@ -1090,7 +880,7 @@ run_regression()

  # parameters: $1 -- key, $2 -- value
  function send_size_to_ods {
-    curl --silent "https://www.intern.facebook.com/intern/agent/ods_set.php?entity=rocksdb_build&key=rocksdb.build_size.$1&value=$2" \
+    curl -s "https://www.intern.facebook.com/intern/agent/ods_set.php?entity=rocksdb_build&key=rocksdb.build_size.$1&value=$2" \
      --connect-timeout 60
  }

@@ -1101,7 +891,6 @@ run_regression()
  strip librocksdb.a
  send_size_to_ods static_lib_stripped $(stat --printf="%s" librocksdb.a)

-  make clean
  make -j$(nproc) shared_lib
  send_size_to_ods shared_lib $(stat --printf="%s" `readlink -f librocksdb.so`)
  strip `readlink -f librocksdb.so`
@@ -1114,7 +903,6 @@ run_regression()
  strip librocksdb.a
  send_size_to_ods static_lib_lite_stripped $(stat --printf="%s" librocksdb.a)

-  make clean
  make LITE=1 -j$(nproc) shared_lib
  send_size_to_ods shared_lib_lite $(stat --printf="%s" `readlink -f librocksdb.so`)
  strip `readlink -f librocksdb.so`
@@ -1200,12 +988,6 @@ case $1 in
  stress_crash)
    echo $STRESS_CRASH_TEST_COMMANDS
    ;;
-  blackbox_stress_crash)
-    echo $BLACKBOX_STRESS_CRASH_TEST_COMMANDS
-    ;;
-  whitebox_stress_crash)
-    echo $WHITEBOX_STRESS_CRASH_TEST_COMMANDS
-    ;;
  stress_crash_with_atomic_flush)
    echo $STRESS_CRASH_TEST_WITH_ATOMIC_FLUSH_COMMANDS
    ;;
@@ -1221,12 +1003,6 @@ case $1 in
  asan_crash)
    echo $ASAN_CRASH_TEST_COMMANDS
    ;;
-  blackbox_asan_crash)
-    echo $ASAN_BLACKBOX_CRASH_TEST_COMMANDS
-    ;;
-  whitebox_asan_crash)
-    echo $ASAN_WHITEBOX_CRASH_TEST_COMMANDS
-    ;;
  asan_crash_with_atomic_flush)
    echo $ASAN_CRASH_TEST_WITH_ATOMIC_FLUSH_COMMANDS
    ;;
@@ -1239,12 +1015,6 @@ case $1 in
  ubsan_crash)
    echo $UBSAN_CRASH_TEST_COMMANDS
    ;;
-  blackbox_ubsan_crash)
-    echo $UBSAN_BLACKBOX_CRASH_TEST_COMMANDS
-    ;;
-  whitebox_ubsan_crash)
-    echo $UBSAN_WHITEBOX_CRASH_TEST_COMMANDS
-    ;;
  ubsan_crash_with_atomic_flush)
    echo $UBSAN_CRASH_TEST_WITH_ATOMIC_FLUSH_COMMANDS
    ;;
@@ -1260,12 +1030,6 @@ case $1 in
  tsan_crash)
    echo $TSAN_CRASH_TEST_COMMANDS
    ;;
-  blackbox_tsan_crash)
-    echo $TSAN_BLACKBOX_CRASH_TEST_COMMANDS
-    ;;
-  whitebox_tsan_crash)
-    echo $TSAN_WHITEBOX_CRASH_TEST_COMMANDS
-    ;;
  tsan_crash_with_atomic_flush)
    echo $TSAN_CRASH_TEST_WITH_ATOMIC_FLUSH_COMMANDS
    ;;
@@ -1295,6 +1059,5 @@ case $1 in
    ;;
  *)
    echo "Invalid determinator command"
-    exit 1
    ;;
 esac
@@ -1,9 +1,9 @@
 #!/bin/bash
 # Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
-set -ex
+set -e

-ROCKSDB_VERSION="6.7.3"
-ZSTD_VERSION="1.4.4"
+ROCKSDB_VERSION="5.10.3"
+ZSTD_VERSION="1.1.3"

 echo "This script configures CentOS with everything needed to build and run RocksDB"

@@ -40,6 +40,5 @@ cd /usr/local/rocksdb
 chown -R vagrant:vagrant /usr/local/rocksdb/
 sudo -u vagrant make static_lib
 cd examples/
-sudo -u vagrant LD_LIBRARY_PATH=/usr/local/lib/ make all
-sudo -u vagrant LD_LIBRARY_PATH=/usr/local/lib/ ./c_simple_example
-
+sudo -u vagrant make all
+sudo -u vagrant ./c_simple_example
@@ -1,63 +0,0 @@
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
-//  This source code is licensed under both the GPLv2 (found in the
-//  COPYING file in the root directory) and Apache 2.0 License
-//  (found in the LICENSE.Apache file in the root directory).
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "rocksdb/cache.h"
-
-#include "cache/lru_cache.h"
-#include "rocksdb/utilities/options_type.h"
-#include "util/string_util.h"
-
-namespace ROCKSDB_NAMESPACE {
-#ifndef ROCKSDB_LITE
-static std::unordered_map<std::string, OptionTypeInfo>
-    lru_cache_options_type_info = {
-        {"capacity",
-         {offsetof(struct LRUCacheOptions, capacity), OptionType::kSizeT,
-          OptionVerificationType::kNormal, OptionTypeFlags::kMutable}},
-        {"num_shard_bits",
-         {offsetof(struct LRUCacheOptions, num_shard_bits), OptionType::kInt,
-          OptionVerificationType::kNormal, OptionTypeFlags::kMutable}},
-        {"strict_capacity_limit",
-         {offsetof(struct LRUCacheOptions, strict_capacity_limit),
-          OptionType::kBoolean, OptionVerificationType::kNormal,
-          OptionTypeFlags::kMutable}},
-        {"high_pri_pool_ratio",
-         {offsetof(struct LRUCacheOptions, high_pri_pool_ratio),
-          OptionType::kDouble, OptionVerificationType::kNormal,
-          OptionTypeFlags::kMutable}},
-};
-#endif  // ROCKSDB_LITE
-
-Status Cache::CreateFromString(const ConfigOptions& config_options,
-                               const std::string& value,
-                               std::shared_ptr<Cache>* result) {
-  Status status;
-  std::shared_ptr<Cache> cache;
-  if (value.find('=') == std::string::npos) {
-    cache = NewLRUCache(ParseSizeT(value));
-  } else {
-#ifndef ROCKSDB_LITE
-    LRUCacheOptions cache_opts;
-    status = OptionTypeInfo::ParseStruct(
-        config_options, "", &lru_cache_options_type_info, "", value,
-        reinterpret_cast<char*>(&cache_opts));
-    if (status.ok()) {
-      cache = NewLRUCache(cache_opts);
-    }
-#else
-    (void)config_options;
-    status = Status::NotSupported("Cannot load cache in LITE mode ", value);
-#endif  //! ROCKSDB_LITE
-  }
-  if (status.ok()) {
-    result->swap(cache);
-  }
-  return status;
-}
-}  // namespace ROCKSDB_NAMESPACE
@@ -14,63 +14,56 @@ int main() {
 #include <stdio.h>
 #include <sys/types.h>
 #include <cinttypes>
-#include <limits>

 #include "port/port.h"
 #include "rocksdb/cache.h"
 #include "rocksdb/db.h"
 #include "rocksdb/env.h"
-#include "util/coding.h"
 #include "util/gflags_compat.h"
-#include "util/hash.h"
 #include "util/mutexlock.h"
 #include "util/random.h"

 using GFLAGS_NAMESPACE::ParseCommandLineFlags;

-static constexpr uint32_t KiB = uint32_t{1} << 10;
-static constexpr uint32_t MiB = KiB << 10;
-static constexpr uint64_t GiB = MiB << 10;
+static const uint32_t KB = 1024;

-DEFINE_uint32(threads, 16, "Number of concurrent threads to run.");
-DEFINE_uint64(cache_size, 1 * GiB,
-              "Number of bytes to use as a cache of uncompressed data.");
-DEFINE_uint32(num_shard_bits, 6, "shard_bits.");
+DEFINE_int32(threads, 16, "Number of concurrent threads to run.");
+DEFINE_int64(cache_size, 8 * KB * KB,
+             "Number of bytes to use as a cache of uncompressed data.");
+DEFINE_int32(num_shard_bits, 4, "shard_bits.");

-DEFINE_double(resident_ratio, 0.25,
-              "Ratio of keys fitting in cache to keyspace.");
-DEFINE_uint64(ops_per_thread, 0,
-              "Number of operations per thread. (Default: 5 * keyspace size)");
-DEFINE_uint32(value_bytes, 8 * KiB, "Size of each value added.");
+DEFINE_int64(max_key, 1 * KB * KB * KB, "Max number of key to place in cache");
+DEFINE_uint64(ops_per_thread, 1200000, "Number of operations per thread.");

-DEFINE_uint32(skew, 5, "Degree of skew in key selection");
-DEFINE_bool(populate_cache, true, "Populate cache before operations");
-
-DEFINE_uint32(lookup_insert_percent, 87,
-              "Ratio of lookup (+ insert on not found) to total workload "
-              "(expressed as a percentage)");
-DEFINE_uint32(insert_percent, 2,
-              "Ratio of insert to total workload (expressed as a percentage)");
-DEFINE_uint32(lookup_percent, 10,
-              "Ratio of lookup to total workload (expressed as a percentage)");
-DEFINE_uint32(erase_percent, 1,
-              "Ratio of erase to total workload (expressed as a percentage)");
+DEFINE_bool(populate_cache, false, "Populate cache before operations");
+DEFINE_int32(insert_percent, 40,
+             "Ratio of insert to total workload (expressed as a percentage)");
+DEFINE_int32(lookup_percent, 50,
+             "Ratio of lookup to total workload (expressed as a percentage)");
+DEFINE_int32(erase_percent, 10,
+             "Ratio of erase to total workload (expressed as a percentage)");

 DEFINE_bool(use_clock_cache, false, "");

-namespace ROCKSDB_NAMESPACE {
+namespace rocksdb {

 class CacheBench;
 namespace {
+void deleter(const Slice& /*key*/, void* value) {
+    delete reinterpret_cast<char *>(value);
+}
+
 // State shared by all concurrent executions of the same benchmark.
 class SharedState {
 public:
  explicit SharedState(CacheBench* cache_bench)
      : cv_(&mu_),
+        num_threads_(FLAGS_threads),
        num_initialized_(0),
        start_(false),
        num_done_(0),
-        cache_bench_(cache_bench) {}
+        cache_bench_(cache_bench) {
+  }

  ~SharedState() {}

@@ -94,9 +87,13 @@ class SharedState {
    num_done_++;
  }

-  bool AllInitialized() const { return num_initialized_ >= FLAGS_threads; }
+  bool AllInitialized() const {
+    return num_initialized_ >= num_threads_;
+  }

-  bool AllDone() const { return num_done_ >= FLAGS_threads; }
+  bool AllDone() const {
+    return num_done_ >= num_threads_;
+  }

  void SetStart() {
    start_ = true;
@@ -110,6 +107,7 @@ class SharedState {
  port::Mutex mu_;
  port::CondVar cv_;

+  const uint64_t num_threads_;
  uint64_t num_initialized_;
  bool start_;
  uint64_t num_done_;
@@ -120,69 +118,17 @@ class SharedState {
 // Per-thread state for concurrent executions of the same benchmark.
 struct ThreadState {
  uint32_t tid;
-  Random64 rnd;
+  Random rnd;
  SharedState* shared;

  ThreadState(uint32_t index, SharedState* _shared)
      : tid(index), rnd(1000 + index), shared(_shared) {}
 };
-
-struct KeyGen {
-  char key_data[27];
-
-  Slice GetRand(Random64& rnd, uint64_t max_key) {
-    uint64_t raw = rnd.Next();
-    // Skew according to setting
-    for (uint32_t i = 0; i < FLAGS_skew; ++i) {
-      raw = std::min(raw, rnd.Next());
-    }
-    uint64_t key = FastRange64(raw, max_key);
-    // Variable size and alignment
-    size_t off = key % 8;
-    key_data[0] = char{42};
-    EncodeFixed64(key_data + 1, key);
-    key_data[9] = char{11};
-    EncodeFixed64(key_data + 10, key);
-    key_data[18] = char{4};
-    EncodeFixed64(key_data + 19, key);
-    return Slice(&key_data[off], sizeof(key_data) - off);
-  }
-};
-
-char* createValue(Random64& rnd) {
-  char* rv = new char[FLAGS_value_bytes];
-  // Fill with some filler data, and take some CPU time
-  for (uint32_t i = 0; i < FLAGS_value_bytes; i += 8) {
-    EncodeFixed64(rv + i, rnd.Next());
-  }
-  return rv;
-}
-
-void deleter(const Slice& /*key*/, void* value) {
-  delete[] static_cast<char*>(value);
-}
 }  // namespace

 class CacheBench {
-  static constexpr uint64_t kHundredthUint64 =
-      std::numeric_limits<uint64_t>::max() / 100U;
-
 public:
-  CacheBench()
-      : max_key_(static_cast<uint64_t>(FLAGS_cache_size / FLAGS_resident_ratio /
-                                       FLAGS_value_bytes)),
-        lookup_insert_threshold_(kHundredthUint64 *
-                                 FLAGS_lookup_insert_percent),
-        insert_threshold_(lookup_insert_threshold_ +
-                          kHundredthUint64 * FLAGS_insert_percent),
-        lookup_threshold_(insert_threshold_ +
-                          kHundredthUint64 * FLAGS_lookup_percent),
-        erase_threshold_(lookup_threshold_ +
-                         kHundredthUint64 * FLAGS_erase_percent) {
-    if (erase_threshold_ != 100U * kHundredthUint64) {
-      fprintf(stderr, "Percentages must add to 100.\n");
-      exit(1);
-    }
+  CacheBench() : num_threads_(FLAGS_threads) {
    if (FLAGS_use_clock_cache) {
      cache_ = NewClockCache(FLAGS_cache_size, FLAGS_num_shard_bits);
      if (!cache_) {
@@ -192,31 +138,30 @@ class CacheBench {
    } else {
      cache_ = NewLRUCache(FLAGS_cache_size, FLAGS_num_shard_bits);
    }
-    if (FLAGS_ops_per_thread == 0) {
-      FLAGS_ops_per_thread = 5 * max_key_;
-    }
  }

  ~CacheBench() {}

  void PopulateCache() {
-    Random64 rnd(1);
-    KeyGen keygen;
-    for (uint64_t i = 0; i < 2 * FLAGS_cache_size; i += FLAGS_value_bytes) {
-      cache_->Insert(keygen.GetRand(rnd, max_key_), createValue(rnd),
-                     FLAGS_value_bytes, &deleter);
+    Random rnd(1);
+    for (int64_t i = 0; i < FLAGS_cache_size; i++) {
+      uint64_t rand_key = rnd.Next() % FLAGS_max_key;
+      // Cast uint64* to be char*, data would be copied to cache
+      Slice key(reinterpret_cast<char*>(&rand_key), 8);
+      // do insert
+      cache_->Insert(key, new char[10], 1, &deleter);
    }
  }

  bool Run() {
-    ROCKSDB_NAMESPACE::Env* env = ROCKSDB_NAMESPACE::Env::Default();
+    rocksdb::Env* env = rocksdb::Env::Default();

    PrintEnv();
    SharedState shared(this);
-    std::vector<std::unique_ptr<ThreadState> > threads(FLAGS_threads);
-    for (uint32_t i = 0; i < FLAGS_threads; i++) {
-      threads[i].reset(new ThreadState(i, &shared));
-      env->StartThread(ThreadBody, threads[i].get());
+    std::vector<ThreadState*> threads(num_threads_);
+    for (uint32_t i = 0; i < num_threads_; i++) {
+      threads[i] = new ThreadState(i, &shared);
+      env->StartThread(ThreadBody, threads[i]);
    }
    {
      MutexLock l(shared.GetMutex());
@@ -247,15 +192,10 @@ class CacheBench {

 private:
  std::shared_ptr<Cache> cache_;
-  const uint64_t max_key_;
-  // Cumulative thresholds in the space of a random uint64_t
-  const uint64_t lookup_insert_threshold_;
-  const uint64_t insert_threshold_;
-  const uint64_t lookup_threshold_;
-  const uint64_t erase_threshold_;
+  uint32_t num_threads_;

  static void ThreadBody(void* v) {
-    ThreadState* thread = static_cast<ThreadState*>(v);
+    ThreadState* thread = reinterpret_cast<ThreadState*>(v);
    SharedState* shared = thread->shared;

    {
@@ -280,82 +220,44 @@ class CacheBench {
  }

  void OperateCache(ThreadState* thread) {
-    // To use looked-up values
-    uint64_t result = 0;
-    // To hold handles for a non-trivial amount of time
-    Cache::Handle* handle = nullptr;
-    KeyGen gen;
    for (uint64_t i = 0; i < FLAGS_ops_per_thread; i++) {
-      Slice key = gen.GetRand(thread->rnd, max_key_);
-      uint64_t random_op = thread->rnd.Next();
-      if (random_op < lookup_insert_threshold_) {
-        if (handle) {
-          cache_->Release(handle);
-          handle = nullptr;
-        }
-        // do lookup
-        handle = cache_->Lookup(key);
-        if (handle) {
-          // do something with the data
-          result += NPHash64(static_cast<char*>(cache_->Value(handle)),
-                             FLAGS_value_bytes);
-        } else {
-          // do insert
-          cache_->Insert(key, createValue(thread->rnd), FLAGS_value_bytes,
-                         &deleter, &handle);
-        }
-      } else if (random_op < insert_threshold_) {
-        if (handle) {
-          cache_->Release(handle);
-          handle = nullptr;
-        }
+      uint64_t rand_key = thread->rnd.Next() % FLAGS_max_key;
+      // Cast uint64* to be char*, data would be copied to cache
+      Slice key(reinterpret_cast<char*>(&rand_key), 8);
+      int32_t prob_op = thread->rnd.Uniform(100);
+      if (prob_op >= 0 && prob_op < FLAGS_insert_percent) {
        // do insert
-        cache_->Insert(key, createValue(thread->rnd), FLAGS_value_bytes,
-                       &deleter, &handle);
-      } else if (random_op < lookup_threshold_) {
+        cache_->Insert(key, new char[10], 1, &deleter);
+      } else if (prob_op -= FLAGS_insert_percent &&
+                 prob_op < FLAGS_lookup_percent) {
+        // do lookup
+        auto handle = cache_->Lookup(key);
        if (handle) {
          cache_->Release(handle);
-          handle = nullptr;
        }
-        // do lookup
-        handle = cache_->Lookup(key);
-        if (handle) {
-          // do something with the data
-          result += NPHash64(static_cast<char*>(cache_->Value(handle)),
-                             FLAGS_value_bytes);
-        }
-      } else if (random_op < erase_threshold_) {
+      } else if (prob_op -= FLAGS_lookup_percent &&
+                 prob_op < FLAGS_erase_percent) {
        // do erase
        cache_->Erase(key);
-      } else {
-        // Should be extremely unlikely (noop)
-        assert(random_op >= kHundredthUint64 * 100U);
      }
    }
-    if (handle) {
-      cache_->Release(handle);
-      handle = nullptr;
-    }
  }

  void PrintEnv() const {
    printf("RocksDB version     : %d.%d\n", kMajorVersion, kMinorVersion);
-    printf("Number of threads   : %u\n", FLAGS_threads);
+    printf("Number of threads   : %d\n", FLAGS_threads);
    printf("Ops per thread      : %" PRIu64 "\n", FLAGS_ops_per_thread);
    printf("Cache size          : %" PRIu64 "\n", FLAGS_cache_size);
-    printf("Num shard bits      : %u\n", FLAGS_num_shard_bits);
-    printf("Max key             : %" PRIu64 "\n", max_key_);
-    printf("Resident ratio      : %g\n", FLAGS_resident_ratio);
-    printf("Skew degree         : %u\n", FLAGS_skew);
-    printf("Populate cache      : %d\n", int{FLAGS_populate_cache});
-    printf("Lookup+Insert pct   : %u%%\n", FLAGS_lookup_insert_percent);
-    printf("Insert percentage   : %u%%\n", FLAGS_insert_percent);
-    printf("Lookup percentage   : %u%%\n", FLAGS_lookup_percent);
-    printf("Erase percentage    : %u%%\n", FLAGS_erase_percent);
+    printf("Num shard bits      : %d\n", FLAGS_num_shard_bits);
+    printf("Max key             : %" PRIu64 "\n", FLAGS_max_key);
+    printf("Populate cache      : %d\n", FLAGS_populate_cache);
+    printf("Insert percentage   : %d%%\n", FLAGS_insert_percent);
+    printf("Lookup percentage   : %d%%\n", FLAGS_lookup_percent);
+    printf("Erase percentage    : %d%%\n", FLAGS_erase_percent);
    printf("----------------------------\n");
  }
 };
-}  // namespace ROCKSDB_NAMESPACE
+}  // namespace rocksdb

 int main(int argc, char** argv) {
  ParseCommandLineFlags(&argc, &argv, true);
@@ -365,11 +267,9 @@ int main(int argc, char** argv) {
    exit(1);
  }

-  ROCKSDB_NAMESPACE::CacheBench bench;
+  rocksdb::CacheBench bench;
  if (FLAGS_populate_cache) {
    bench.PopulateCache();
-    printf("Population complete\n");
-    printf("----------------------------\n");
  }
  if (bench.Run()) {
    return 0;
@@ -20,7 +20,7 @@
 #include "util/coding.h"
 #include "util/string_util.h"

-namespace ROCKSDB_NAMESPACE {
+namespace rocksdb {

 // Conversions between numeric keys/values and the types expected by Cache.
 static std::string EncodeKey(int k) {
@@ -117,8 +117,8 @@ class CacheTest : public testing::TestWithParam<std::string> {

  void Insert(std::shared_ptr<Cache> cache, int key, int value,
              int charge = 1) {
-    EXPECT_OK(cache->Insert(EncodeKey(key), EncodeValue(value), charge,
-                            &CacheTest::Deleter));
+    cache->Insert(EncodeKey(key), EncodeValue(value), charge,
+                  &CacheTest::Deleter);
  }

  void Erase(std::shared_ptr<Cache> cache, int key) {
@@ -167,10 +167,9 @@ TEST_P(CacheTest, UsageTest) {
  for (int i = 1; i < 100; ++i) {
    std::string key(i, 'a');
    auto kv_size = key.size() + 5;
-    ASSERT_OK(cache->Insert(key, reinterpret_cast<void*>(value), kv_size,
-                            dumbDeleter));
-    ASSERT_OK(precise_cache->Insert(key, reinterpret_cast<void*>(value),
-                                    kv_size, dumbDeleter));
+    cache->Insert(key, reinterpret_cast<void*>(value), kv_size, dumbDeleter);
+    precise_cache->Insert(key, reinterpret_cast<void*>(value), kv_size,
+                          dumbDeleter);
    usage += kv_size;
    ASSERT_EQ(usage, cache->GetUsage());
    ASSERT_LT(usage, precise_cache->GetUsage());
@@ -184,10 +183,10 @@ TEST_P(CacheTest, UsageTest) {
  // make sure the cache will be overloaded
  for (uint64_t i = 1; i < kCapacity; ++i) {
    auto key = ToString(i);
-    ASSERT_OK(cache->Insert(key, reinterpret_cast<void*>(value), key.size() + 5,
-                            dumbDeleter));
-    ASSERT_OK(precise_cache->Insert(key, reinterpret_cast<void*>(value),
-                                    key.size() + 5, dumbDeleter));
+    cache->Insert(key, reinterpret_cast<void*>(value), key.size() + 5,
+                  dumbDeleter);
+    precise_cache->Insert(key, reinterpret_cast<void*>(value), key.size() + 5,
+                          dumbDeleter);
  }

  // the usage should be close to the capacity
@@ -216,12 +215,11 @@ TEST_P(CacheTest, PinnedUsageTest) {
    auto kv_size = key.size() + 5;
    Cache::Handle* handle;
    Cache::Handle* handle_in_precise_cache;
-    ASSERT_OK(cache->Insert(key, reinterpret_cast<void*>(value), kv_size,
-                            dumbDeleter, &handle));
+    cache->Insert(key, reinterpret_cast<void*>(value), kv_size, dumbDeleter,
+                  &handle);
    assert(handle);
-    ASSERT_OK(precise_cache->Insert(key, reinterpret_cast<void*>(value),
-                                    kv_size, dumbDeleter,
-                                    &handle_in_precise_cache));
+    precise_cache->Insert(key, reinterpret_cast<void*>(value), kv_size,
+                          dumbDeleter, &handle_in_precise_cache);
    assert(handle_in_precise_cache);
    pinned_usage += kv_size;
    ASSERT_EQ(pinned_usage, cache->GetPinnedUsage());
@@ -256,10 +254,10 @@ TEST_P(CacheTest, PinnedUsageTest) {
  // check that overloading the cache does not change the pinned usage
  for (uint64_t i = 1; i < 2 * kCapacity; ++i) {
    auto key = ToString(i);
-    ASSERT_OK(cache->Insert(key, reinterpret_cast<void*>(value), key.size() + 5,
-                            dumbDeleter));
-    ASSERT_OK(precise_cache->Insert(key, reinterpret_cast<void*>(value),
-                                    key.size() + 5, dumbDeleter));
+    cache->Insert(key, reinterpret_cast<void*>(value), key.size() + 5,
+                  dumbDeleter);
+    precise_cache->Insert(key, reinterpret_cast<void*>(value), key.size() + 5,
+                          dumbDeleter);
  }
  ASSERT_EQ(pinned_usage, cache->GetPinnedUsage());
  ASSERT_EQ(precise_cache_pinned_usage, precise_cache->GetPinnedUsage());
@@ -767,7 +765,7 @@ INSTANTIATE_TEST_CASE_P(CacheTestInstance, CacheTest, testing::Values(kLRU));
 #endif  // SUPPORT_CLOCK_CACHE
 INSTANTIATE_TEST_CASE_P(CacheTestInstance, LRUCacheTest, testing::Values(kLRU));

-}  // namespace ROCKSDB_NAMESPACE
+}  // namespace rocksdb

 int main(int argc, char** argv) {
  ::testing::InitGoogleTest(&argc, argv);
@@ -11,7 +11,7 @@

 #ifndef SUPPORT_CLOCK_CACHE

-namespace ROCKSDB_NAMESPACE {
+namespace rocksdb {

 std::shared_ptr<Cache> NewClockCache(
    size_t /*capacity*/, int /*num_shard_bits*/, bool /*strict_capacity_limit*/,
@@ -20,7 +20,7 @@ std::shared_ptr<Cache> NewClockCache(
  return nullptr;
 }

-}  // namespace ROCKSDB_NAMESPACE
+}  // namespace rocksdb

 #else

@@ -41,7 +41,7 @@ std::shared_ptr<Cache> NewClockCache(
 #include "util/autovector.h"
 #include "util/mutexlock.h"

-namespace ROCKSDB_NAMESPACE {
+namespace rocksdb {

 namespace {

@@ -182,7 +182,7 @@ struct CacheHandle {
  void (*deleter)(const Slice&, void* value);

  // Flags and counters associated with the cache handle:
-  //   lowest bit: in-cache bit
+  //   lowest bit: n-cache bit
  //   second lowest bit: usage bit
  //   the rest bits: reference count
  // The handle is unused when flags equals to 0. The thread decreases the count
@@ -341,8 +341,7 @@ class ClockCacheShard final : public CacheShard {
  CacheHandle* Insert(const Slice& key, uint32_t hash, void* value,
                      size_t change,
                      void (*deleter)(const Slice& key, void* value),
-                      bool hold_reference, CleanupContext* context,
-                      bool* overwritten);
+                      bool hold_reference, CleanupContext* context);

  // Guards list_, head_, and recycle_. In addition, updating table_ also has
  // to hold the mutex, to avoid the cache being in inconsistent state.
@@ -565,8 +564,7 @@ void ClockCacheShard::SetStrictCapacityLimit(bool strict_capacity_limit) {
 CacheHandle* ClockCacheShard::Insert(
    const Slice& key, uint32_t hash, void* value, size_t charge,
    void (*deleter)(const Slice& key, void* value), bool hold_reference,
-    CleanupContext* context, bool* overwritten) {
-  assert(overwritten != nullptr && *overwritten == false);
+    CleanupContext* context) {
  size_t total_charge =
      CacheHandle::CalcTotalCharge(key, charge, metadata_charge_policy_);
  MutexLock l(&mutex_);
@@ -599,7 +597,6 @@ CacheHandle* ClockCacheShard::Insert(
  handle->flags.store(flags, std::memory_order_relaxed);
  HashTable::accessor accessor;
  if (table_.find(accessor, CacheKey(key, hash))) {
-    *overwritten = true;
    CacheHandle* existing_handle = accessor->second;
    table_.erase(accessor);
    UnsetInCache(existing_handle, context);
@@ -622,9 +619,8 @@ Status ClockCacheShard::Insert(const Slice& key, uint32_t hash, void* value,
  char* key_data = new char[key.size()];
  memcpy(key_data, key.data(), key.size());
  Slice key_copy(key_data, key.size());
-  bool overwritten = false;
  CacheHandle* handle = Insert(key_copy, hash, value, charge, deleter,
-                               out_handle != nullptr, &context, &overwritten);
+                               out_handle != nullptr, &context);
  Status s;
  if (out_handle != nullptr) {
    if (handle == nullptr) {
@@ -633,10 +629,6 @@ Status ClockCacheShard::Insert(const Slice& key, uint32_t hash, void* value,
      *out_handle = reinterpret_cast<Cache::Handle*>(handle);
    }
  }
-  if (overwritten) {
-    assert(s.ok());
-    s = Status::OkOverwritten();
-  }
  Cleanup(context);
  return s;
 }
@@ -764,6 +756,6 @@ std::shared_ptr<Cache> NewClockCache(
      capacity, num_shard_bits, strict_capacity_limit, metadata_charge_policy);
 }

-}  // namespace ROCKSDB_NAMESPACE
+}  // namespace rocksdb

 #endif  // SUPPORT_CLOCK_CACHE
@@ -16,7 +16,7 @@

 #include "util/mutexlock.h"

-namespace ROCKSDB_NAMESPACE {
+namespace rocksdb {

 LRUHandleTable::LRUHandleTable() : list_(nullptr), length_(0), elems_(0) {
  Resize();
@@ -386,7 +386,6 @@ Status LRUCacheShard::Insert(const Slice& key, uint32_t hash, void* value,
      LRUHandle* old = table_.Insert(e);
      usage_ += total_charge;
      if (old != nullptr) {
-        s = Status::OkOverwritten();
        assert(old->InCache());
        old->SetInCache(false);
        if (!old->HasRefs()) {
@@ -572,4 +571,4 @@ std::shared_ptr<Cache> NewLRUCache(
      std::move(memory_allocator), use_adaptive_mutex, metadata_charge_policy);
 }

-}  // namespace ROCKSDB_NAMESPACE
+}  // namespace rocksdb
@@ -16,7 +16,7 @@
 #include "port/port.h"
 #include "util/autovector.h"

-namespace ROCKSDB_NAMESPACE {
+namespace rocksdb {

 // LRU cache implementation. This class is not thread-safe.

@@ -336,4 +336,4 @@ class LRUCache
  int num_shards_ = 0;
 };

-}  // namespace ROCKSDB_NAMESPACE
+}  // namespace rocksdb
@@ -10,7 +10,7 @@
 #include "port/port.h"
 #include "test_util/testharness.h"

-namespace ROCKSDB_NAMESPACE {
+namespace rocksdb {

 class LRUCacheTest : public testing::Test {
 public:
@@ -37,9 +37,8 @@ class LRUCacheTest : public testing::Test {

  void Insert(const std::string& key,
              Cache::Priority priority = Cache::Priority::LOW) {
-    EXPECT_OK(cache_->Insert(key, 0 /*hash*/, nullptr /*value*/, 1 /*charge*/,
-                             nullptr /*deleter*/, nullptr /*handle*/,
-                             priority));
+    cache_->Insert(key, 0 /*hash*/, nullptr /*value*/, 1 /*charge*/,
+                   nullptr /*deleter*/, nullptr /*handle*/, priority);
  }

  void Insert(char key, Cache::Priority priority = Cache::Priority::LOW) {
@@ -191,7 +190,7 @@ TEST_F(LRUCacheTest, EntriesWithPriority) {
  ValidateLRUList({"e", "f", "g", "Z", "d"}, 2);
 }

-}  // namespace ROCKSDB_NAMESPACE
+}  // namespace rocksdb

 int main(int argc, char** argv) {
  ::testing::InitGoogleTest(&argc, argv);
@@ -13,7 +13,7 @@

 #include "util/mutexlock.h"

-namespace ROCKSDB_NAMESPACE {
+namespace rocksdb {

 ShardedCache::ShardedCache(size_t capacity, int num_shard_bits,
                           bool strict_capacity_limit,
@@ -159,4 +159,4 @@ int GetDefaultCacheShardBits(size_t capacity) {
  return num_shard_bits;
 }

-}  // namespace ROCKSDB_NAMESPACE
+}  // namespace rocksdb
@@ -16,7 +16,7 @@
 #include "rocksdb/cache.h"
 #include "util/hash.h"

-namespace ROCKSDB_NAMESPACE {
+namespace rocksdb {

 // Single cache shard interface.
 class CacheShard {
@@ -108,4 +108,4 @@ class ShardedCache : public Cache {

 extern int GetDefaultCacheShardBits(size_t capacity);

-}  // namespace ROCKSDB_NAMESPACE
+}  // namespace rocksdb
@@ -1,54 +1,3 @@
@PACKAGE_INIT@
-
-list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}/modules")
-
-include(CMakeFindDependencyMacro)
-
-set(GFLAGS_USE_TARGET_NAMESPACE @GFLAGS_USE_TARGET_NAMESPACE@)
-
-if(@WITH_JEMALLOC@)
-  find_dependency(JeMalloc)
-endif()
-
-if(@WITH_GFLAGS@)
-  find_dependency(gflags CONFIG)
-  if(NOT gflags_FOUND)
-    find_dependency(gflags)
-  endif()
-endif()
-
-if(@WITH_SNAPPY@)
-  find_dependency(Snappy CONFIG)
-  if(NOT Snappy_FOUND)
-    find_dependency(Snappy)
-  endif()
-endif()
-
-if(@WITH_ZLIB@)
-  find_dependency(ZLIB)
-endif()
-
-if(@WITH_BZ2@)
-  find_dependency(BZip2)
-endif()
-
-if(@WITH_LZ4@)
-  find_dependency(lz4)
-endif()
-
-if(@WITH_ZSTD@)
-  find_dependency(zstd)
-endif()
-
-if(@WITH_NUMA@)
-  find_dependency(NUMA)
-endif()
-
-if(@WITH_TBB@)
-  find_dependency(TBB)
-endif()
-
-find_dependency(Threads)
-
 include("${CMAKE_CURRENT_LIST_DIR}/RocksDBTargets.cmake")
 check_required_components(RocksDB)
@@ -1,7 +0,0 @@
-macro(get_cxx_std_flags FLAGS_VARIABLE)
-  if( CMAKE_CXX_STANDARD_REQUIRED )
-    set(${FLAGS_VARIABLE} ${CMAKE_CXX${CMAKE_CXX_STANDARD}_STANDARD_COMPILE_OPTION})
-  else()
-    set(${FLAGS_VARIABLE} ${CMAKE_CXX${CMAKE_CXX_STANDARD}_EXTENSION_COMPILE_OPTION})
-  endif()
-endmacro()
@@ -1,29 +0,0 @@
-# - Find Snappy
-# Find the snappy compression library and includes
-#
-# Snappy_INCLUDE_DIRS - where to find snappy.h, etc.
-# Snappy_LIBRARIES - List of libraries when using snappy.
-# Snappy_FOUND - True if snappy found.
-
-find_path(Snappy_INCLUDE_DIRS
-  NAMES snappy.h
-  HINTS ${snappy_ROOT_DIR}/include)
-
-find_library(Snappy_LIBRARIES
-  NAMES snappy
-  HINTS ${snappy_ROOT_DIR}/lib)
-
-include(FindPackageHandleStandardArgs)
-find_package_handle_standard_args(Snappy DEFAULT_MSG Snappy_LIBRARIES Snappy_INCLUDE_DIRS)
-
-mark_as_advanced(
-  Snappy_LIBRARIES
-  Snappy_INCLUDE_DIRS)
-
-if(Snappy_FOUND AND NOT (TARGET Snappy::snappy))
-  add_library (Snappy::snappy UNKNOWN IMPORTED)
-  set_target_properties(Snappy::snappy
-    PROPERTIES
-      IMPORTED_LOCATION ${Snappy_LIBRARIES}
-      INTERFACE_INCLUDE_DIRECTORIES ${Snappy_INCLUDE_DIRS})
-endif()
@@ -1,8 +1,8 @@
 # - Find gflags library
 # Find the gflags includes and library
 #
-# GFLAGS_INCLUDE_DIR - where to find gflags.h.
-# GFLAGS_LIBRARIES - List of libraries when using gflags.
+# gflags_INCLUDE_DIR - where to find gflags.h.
+# gflags_LIBRARIES - List of libraries when using gflags.
 # gflags_FOUND - True if gflags found.

 find_path(GFLAGS_INCLUDE_DIR
@@ -0,0 +1,29 @@
+# - Find Snappy
+# Find the snappy compression library and includes
+#
+# snappy_INCLUDE_DIRS - where to find snappy.h, etc.
+# snappy_LIBRARIES - List of libraries when using snappy.
+# snappy_FOUND - True if snappy found.
+
+find_path(snappy_INCLUDE_DIRS
+  NAMES snappy.h
+  HINTS ${snappy_ROOT_DIR}/include)
+
+find_library(snappy_LIBRARIES
+  NAMES snappy
+  HINTS ${snappy_ROOT_DIR}/lib)
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(snappy DEFAULT_MSG snappy_LIBRARIES snappy_INCLUDE_DIRS)
+
+mark_as_advanced(
+  snappy_LIBRARIES
+  snappy_INCLUDE_DIRS)
+
+if(snappy_FOUND AND NOT (TARGET snappy::snappy))
+  add_library (snappy::snappy UNKNOWN IMPORTED)
+  set_target_properties(snappy::snappy
+    PROPERTIES
+      IMPORTED_LOCATION ${snappy_LIBRARIES}
+      INTERFACE_INCLUDE_DIRECTORIES ${snappy_INCLUDE_DIRS})
+endif()
@@ -12,24 +12,21 @@ fi
 ROOT=".."
 # Fetch right version of gcov
 if [ -d /mnt/gvfs/third-party -a -z "$CXX" ]; then
-  source $ROOT/build_tools/fbcode_config_platform007.sh
+  source $ROOT/build_tools/fbcode_config.sh
  GCOV=$GCC_BASE/bin/gcov
 else
  GCOV=$(which gcov)
 fi
-echo -e "Using $GCOV"

 COVERAGE_DIR="$PWD/COVERAGE_REPORT"
 mkdir -p $COVERAGE_DIR

 # Find all gcno files to generate the coverage report

-PYTHON=${1:-`which python`}
-echo -e "Using $PYTHON"
 GCNO_FILES=`find $ROOT -name "*.gcno"`
 $GCOV --preserve-paths --relative-only --no-output $GCNO_FILES 2>/dev/null |
  # Parse the raw gcov report to more human readable form.
-  $PYTHON $ROOT/coverage/parse_gcov_output.py |
+  python $ROOT/coverage/parse_gcov_output.py |
  # Write the output to both stdout and report file.
  tee $COVERAGE_DIR/coverage_report_all.txt &&
 echo -e "Generated coverage report for all files: $COVERAGE_DIR/coverage_report_all.txt\n"
@@ -44,7 +41,7 @@ RECENT_REPORT=$COVERAGE_DIR/coverage_report_recent.txt

 echo -e "Recently updated files: $LATEST_FILES\n" > $RECENT_REPORT
 $GCOV --preserve-paths --relative-only --no-output $GCNO_FILES 2>/dev/null |
-  $PYTHON $ROOT/coverage/parse_gcov_output.py -interested-files $LATEST_FILES |
+  python $ROOT/coverage/parse_gcov_output.py -interested-files $LATEST_FILES |
  tee -a $RECENT_REPORT &&
 echo -e "Generated coverage report for recently updated files: $RECENT_REPORT\n"

@@ -1,12 +1,10 @@
-#!/usr/bin/env python
+#!/usr/bin/env python2
 # Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
-
-from __future__ import print_function
-
-import optparse
 import re
 import sys

+from optparse import OptionParser
+
 # the gcov report follows certain pattern. Each file will have two lines
 # of report, from which we can extract the file name, total lines and coverage
 # percentage.
@@ -50,7 +48,7 @@ def parse_gcov_report(gcov_input):
 def get_option_parser():
    usage = "Parse the gcov output and generate more human-readable code " +\
            "coverage report."
-    parser = optparse.OptionParser(usage)
+    parser = OptionParser(usage)

    parser.add_option(
        "--interested-files", "-i",
@@ -75,8 +73,8 @@ def display_file_coverage(per_file_coverage, total_coverage):
    header_template = \
        "%" + str(max_file_name_length) + "s\t%s\t%s"
    separator = "-" * (max_file_name_length + 10 + 20)
-    print(header_template % ("Filename", "Coverage", "Lines"))  # noqa: E999 T25377293 Grandfathered in
-    print(separator)
+    print header_template % ("Filename", "Coverage", "Lines")  # noqa: E999 T25377293 Grandfathered in
+    print separator

    # -- Print body
    # template for printing coverage report for each file.
@@ -84,12 +82,12 @@ def display_file_coverage(per_file_coverage, total_coverage):

    for fname, coverage_info in per_file_coverage.items():
        coverage, lines = coverage_info
-        print(record_template % (fname, coverage, lines))
+        print record_template % (fname, coverage, lines)

    # -- Print footer
    if total_coverage:
-        print(separator)
-        print(record_template % ("Total", total_coverage[0], total_coverage[1]))
+        print separator
+        print record_template % ("Total", total_coverage[0], total_coverage[1])

 def report_coverage():
    parser = get_option_parser()
@@ -113,7 +111,7 @@ def report_coverage():
        total_coverage = None

    if not len(per_file_coverage):
-        print("Cannot find coverage info for the given files.", file=sys.stderr)
+        print >> sys.stderr, "Cannot find coverage info for the given files."
        return
    display_file_coverage(per_file_coverage, total_coverage)

@@ -16,7 +16,7 @@
 #include "table/iterator_wrapper.h"
 #include "util/user_comparator_wrapper.h"

-namespace ROCKSDB_NAMESPACE {
+namespace rocksdb {

 Status ArenaWrappedDBIter::GetProperty(std::string prop_name,
                                       std::string* prop) {
@@ -45,7 +45,6 @@ void ArenaWrappedDBIter::Init(Env* env, const ReadOptions& read_options,
                              true, max_sequential_skip_in_iteration,
                              read_callback, db_impl, cfd, allow_blob);
  sv_number_ = version_number;
-  read_options_ = read_options;
  allow_refresh_ = allow_refresh;
 }

@@ -57,9 +56,8 @@ Status ArenaWrappedDBIter::Refresh() {
  // TODO(yiwu): For last_seq_same_as_publish_seq_==false, this is not the
  // correct behavior. Will be corrected automatically when we take a snapshot
  // here for the case of WritePreparedTxnDB.
+  SequenceNumber latest_seq = db_impl_->GetLatestSequenceNumber();
  uint64_t cur_sv_number = cfd_->GetSuperVersionNumber();
-  TEST_SYNC_POINT("ArenaWrappedDBIter::Refresh:1");
-  TEST_SYNC_POINT("ArenaWrappedDBIter::Refresh:2");
  if (sv_number_ != cur_sv_number) {
    Env* env = db_iter_->env();
    db_iter_->~DBIter();
@@ -67,7 +65,6 @@ Status ArenaWrappedDBIter::Refresh() {
    new (&arena_) Arena();

    SuperVersion* sv = cfd_->GetReferencedSuperVersion(db_impl_);
-    SequenceNumber latest_seq = db_impl_->GetLatestSequenceNumber();
    if (read_callback_) {
      read_callback_->Refresh(latest_seq);
    }
@@ -78,10 +75,10 @@ Status ArenaWrappedDBIter::Refresh() {

    InternalIterator* internal_iter = db_impl_->NewInternalIterator(
        read_options_, cfd_, sv, &arena_, db_iter_->GetRangeDelAggregator(),
-        latest_seq, /* allow_unprepared_value */ true);
+        latest_seq);
    SetIterUnderDBIter(internal_iter);
  } else {
-    db_iter_->set_sequence(db_impl_->GetLatestSequenceNumber());
+    db_iter_->set_sequence(latest_seq);
    db_iter_->set_valid(false);
  }
  return Status::OK();
@@ -99,10 +96,11 @@ ArenaWrappedDBIter* NewArenaWrappedDbIterator(
             max_sequential_skip_in_iterations, version_number, read_callback,
             db_impl, cfd, allow_blob, allow_refresh);
  if (db_impl != nullptr && cfd != nullptr && allow_refresh) {
-    iter->StoreRefreshInfo(db_impl, cfd, read_callback, allow_blob);
+    iter->StoreRefreshInfo(read_options, db_impl, cfd, read_callback,
+                           allow_blob);
  }

  return iter;
 }

-}  // namespace ROCKSDB_NAMESPACE
+}  // namespace rocksdb
@@ -20,7 +20,7 @@
 #include "rocksdb/iterator.h"
 #include "util/autovector.h"

-namespace ROCKSDB_NAMESPACE {
+namespace rocksdb {

 class Arena;

@@ -41,34 +41,30 @@ class ArenaWrappedDBIter : public Iterator {
  virtual ReadRangeDelAggregator* GetRangeDelAggregator() {
    return db_iter_->GetRangeDelAggregator();
  }
-  const ReadOptions& GetReadOptions() { return read_options_; }

  // Set the internal iterator wrapped inside the DB Iterator. Usually it is
  // a merging iterator.
  virtual void SetIterUnderDBIter(InternalIterator* iter) {
-    db_iter_->SetIter(iter);
+    static_cast<DBIter*>(db_iter_)->SetIter(iter);
  }

-  bool Valid() const override { return db_iter_->Valid(); }
-  void SeekToFirst() override { db_iter_->SeekToFirst(); }
-  void SeekToLast() override { db_iter_->SeekToLast(); }
-  // 'target' does not contain timestamp, even if user timestamp feature is
-  // enabled.
-  void Seek(const Slice& target) override { db_iter_->Seek(target); }
-  void SeekForPrev(const Slice& target) override {
+  virtual bool Valid() const override { return db_iter_->Valid(); }
+  virtual void SeekToFirst() override { db_iter_->SeekToFirst(); }
+  virtual void SeekToLast() override { db_iter_->SeekToLast(); }
+  virtual void Seek(const Slice& target) override { db_iter_->Seek(target); }
+  virtual void SeekForPrev(const Slice& target) override {
    db_iter_->SeekForPrev(target);
  }
-  void Next() override { db_iter_->Next(); }
-  void Prev() override { db_iter_->Prev(); }
-  Slice key() const override { return db_iter_->key(); }
-  Slice value() const override { return db_iter_->value(); }
-  Status status() const override { return db_iter_->status(); }
-  Slice timestamp() const override { return db_iter_->timestamp(); }
+  virtual void Next() override { db_iter_->Next(); }
+  virtual void Prev() override { db_iter_->Prev(); }
+  virtual Slice key() const override { return db_iter_->key(); }
+  virtual Slice value() const override { return db_iter_->value(); }
+  virtual Status status() const override { return db_iter_->status(); }
  bool IsBlob() const { return db_iter_->IsBlob(); }

-  Status GetProperty(std::string prop_name, std::string* prop) override;
+  virtual Status GetProperty(std::string prop_name, std::string* prop) override;

-  Status Refresh() override;
+  virtual Status Refresh() override;

  void Init(Env* env, const ReadOptions& read_options,
            const ImmutableCFOptions& cf_options,
@@ -80,8 +76,10 @@ class ArenaWrappedDBIter : public Iterator {

  // Store some parameters so we can refresh the iterator at a later point
  // with these same params
-  void StoreRefreshInfo(DBImpl* db_impl, ColumnFamilyData* cfd,
-                        ReadCallback* read_callback, bool allow_blob) {
+  void StoreRefreshInfo(const ReadOptions& read_options, DBImpl* db_impl,
+                        ColumnFamilyData* cfd, ReadCallback* read_callback,
+                        bool allow_blob) {
+    read_options_ = read_options;
    db_impl_ = db_impl;
    cfd_ = cfd;
    read_callback_ = read_callback;
@@ -111,4 +109,4 @@ extern ArenaWrappedDBIter* NewArenaWrappedDbIterator(
    ReadCallback* read_callback, DBImpl* db_impl = nullptr,
    ColumnFamilyData* cfd = nullptr, bool allow_blob = false,
    bool allow_refresh = true);
-}  // namespace ROCKSDB_NAMESPACE
+}  // namespace rocksdb
@@ -1,16 +0,0 @@
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
-//  This source code is licensed under both the GPLv2 (found in the
-//  COPYING file in the root directory) and Apache 2.0 License
-//  (found in the LICENSE.Apache file in the root directory).
-
-#pragma once
-
-#include <cstdint>
-
-#include "rocksdb/rocksdb_namespace.h"
-
-namespace ROCKSDB_NAMESPACE {
-
-constexpr uint64_t kInvalidBlobFileNumber = 0;
-
-}  // namespace ROCKSDB_NAMESPACE
@@ -1,154 +0,0 @@
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
-//  This source code is licensed under both the GPLv2 (found in the
-//  COPYING file in the root directory) and Apache 2.0 License
-//  (found in the LICENSE.Apache file in the root directory).
-
-#include "db/blob/blob_file_addition.h"
-
-#include <ostream>
-#include <sstream>
-
-#include "logging/event_logger.h"
-#include "rocksdb/slice.h"
-#include "rocksdb/status.h"
-#include "test_util/sync_point.h"
-#include "util/coding.h"
-
-namespace ROCKSDB_NAMESPACE {
-
-// Tags for custom fields. Note that these get persisted in the manifest,
-// so existing tags should not be modified.
-enum BlobFileAddition::CustomFieldTags : uint32_t {
-  kEndMarker,
-
-  // Add forward compatible fields here
-
-  /////////////////////////////////////////////////////////////////////
-
-  kForwardIncompatibleMask = 1 << 6,
-
-  // Add forward incompatible fields here
-};
-
-void BlobFileAddition::EncodeTo(std::string* output) const {
-  PutVarint64(output, blob_file_number_);
-  PutVarint64(output, total_blob_count_);
-  PutVarint64(output, total_blob_bytes_);
-  PutLengthPrefixedSlice(output, checksum_method_);
-  PutLengthPrefixedSlice(output, checksum_value_);
-
-  // Encode any custom fields here. The format to use is a Varint32 tag (see
-  // CustomFieldTags above) followed by a length prefixed slice. Unknown custom
-  // fields will be ignored during decoding unless they're in the forward
-  // incompatible range.
-
-  TEST_SYNC_POINT_CALLBACK("BlobFileAddition::EncodeTo::CustomFields", output);
-
-  PutVarint32(output, kEndMarker);
-}
-
-Status BlobFileAddition::DecodeFrom(Slice* input) {
-  constexpr char class_name[] = "BlobFileAddition";
-
-  if (!GetVarint64(input, &blob_file_number_)) {
-    return Status::Corruption(class_name, "Error decoding blob file number");
-  }
-
-  if (!GetVarint64(input, &total_blob_count_)) {
-    return Status::Corruption(class_name, "Error decoding total blob count");
-  }
-
-  if (!GetVarint64(input, &total_blob_bytes_)) {
-    return Status::Corruption(class_name, "Error decoding total blob bytes");
-  }
-
-  Slice checksum_method;
-  if (!GetLengthPrefixedSlice(input, &checksum_method)) {
-    return Status::Corruption(class_name, "Error decoding checksum method");
-  }
-  checksum_method_ = checksum_method.ToString();
-
-  Slice checksum_value;
-  if (!GetLengthPrefixedSlice(input, &checksum_value)) {
-    return Status::Corruption(class_name, "Error decoding checksum value");
-  }
-  checksum_value_ = checksum_value.ToString();
-
-  while (true) {
-    uint32_t custom_field_tag = 0;
-    if (!GetVarint32(input, &custom_field_tag)) {
-      return Status::Corruption(class_name, "Error decoding custom field tag");
-    }
-
-    if (custom_field_tag == kEndMarker) {
-      break;
-    }
-
-    if (custom_field_tag & kForwardIncompatibleMask) {
-      return Status::Corruption(
-          class_name, "Forward incompatible custom field encountered");
-    }
-
-    Slice custom_field_value;
-    if (!GetLengthPrefixedSlice(input, &custom_field_value)) {
-      return Status::Corruption(class_name,
-                                "Error decoding custom field value");
-    }
-  }
-
-  return Status::OK();
-}
-
-std::string BlobFileAddition::DebugString() const {
-  std::ostringstream oss;
-
-  oss << *this;
-
-  return oss.str();
-}
-
-std::string BlobFileAddition::DebugJSON() const {
-  JSONWriter jw;
-
-  jw << *this;
-
-  jw.EndObject();
-
-  return jw.Get();
-}
-
-bool operator==(const BlobFileAddition& lhs, const BlobFileAddition& rhs) {
-  return lhs.GetBlobFileNumber() == rhs.GetBlobFileNumber() &&
-         lhs.GetTotalBlobCount() == rhs.GetTotalBlobCount() &&
-         lhs.GetTotalBlobBytes() == rhs.GetTotalBlobBytes() &&
-         lhs.GetChecksumMethod() == rhs.GetChecksumMethod() &&
-         lhs.GetChecksumValue() == rhs.GetChecksumValue();
-}
-
-bool operator!=(const BlobFileAddition& lhs, const BlobFileAddition& rhs) {
-  return !(lhs == rhs);
-}
-
-std::ostream& operator<<(std::ostream& os,
-                         const BlobFileAddition& blob_file_addition) {
-  os << "blob_file_number: " << blob_file_addition.GetBlobFileNumber()
-     << " total_blob_count: " << blob_file_addition.GetTotalBlobCount()
-     << " total_blob_bytes: " << blob_file_addition.GetTotalBlobBytes()
-     << " checksum_method: " << blob_file_addition.GetChecksumMethod()
-     << " checksum_value: " << blob_file_addition.GetChecksumValue();
-
-  return os;
-}
-
-JSONWriter& operator<<(JSONWriter& jw,
-                       const BlobFileAddition& blob_file_addition) {
-  jw << "BlobFileNumber" << blob_file_addition.GetBlobFileNumber()
-     << "TotalBlobCount" << blob_file_addition.GetTotalBlobCount()
-     << "TotalBlobBytes" << blob_file_addition.GetTotalBlobBytes()
-     << "ChecksumMethod" << blob_file_addition.GetChecksumMethod()
-     << "ChecksumValue" << blob_file_addition.GetChecksumValue();
-
-  return jw;
-}
-
-}  // namespace ROCKSDB_NAMESPACE
@@ -1,67 +0,0 @@
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
-//  This source code is licensed under both the GPLv2 (found in the
-//  COPYING file in the root directory) and Apache 2.0 License
-//  (found in the LICENSE.Apache file in the root directory).
-
-#pragma once
-
-#include <cassert>
-#include <cstdint>
-#include <iosfwd>
-#include <string>
-
-#include "db/blob/blob_constants.h"
-#include "rocksdb/rocksdb_namespace.h"
-
-namespace ROCKSDB_NAMESPACE {
-
-class JSONWriter;
-class Slice;
-class Status;
-
-class BlobFileAddition {
- public:
-  BlobFileAddition() = default;
-
-  BlobFileAddition(uint64_t blob_file_number, uint64_t total_blob_count,
-                   uint64_t total_blob_bytes, std::string checksum_method,
-                   std::string checksum_value)
-      : blob_file_number_(blob_file_number),
-        total_blob_count_(total_blob_count),
-        total_blob_bytes_(total_blob_bytes),
-        checksum_method_(std::move(checksum_method)),
-        checksum_value_(std::move(checksum_value)) {
-    assert(checksum_method_.empty() == checksum_value_.empty());
-  }
-
-  uint64_t GetBlobFileNumber() const { return blob_file_number_; }
-  uint64_t GetTotalBlobCount() const { return total_blob_count_; }
-  uint64_t GetTotalBlobBytes() const { return total_blob_bytes_; }
-  const std::string& GetChecksumMethod() const { return checksum_method_; }
-  const std::string& GetChecksumValue() const { return checksum_value_; }
-
-  void EncodeTo(std::string* output) const;
-  Status DecodeFrom(Slice* input);
-
-  std::string DebugString() const;
-  std::string DebugJSON() const;
-
- private:
-  enum CustomFieldTags : uint32_t;
-
-  uint64_t blob_file_number_ = kInvalidBlobFileNumber;
-  uint64_t total_blob_count_ = 0;
-  uint64_t total_blob_bytes_ = 0;
-  std::string checksum_method_;
-  std::string checksum_value_;
-};
-
-bool operator==(const BlobFileAddition& lhs, const BlobFileAddition& rhs);
-bool operator!=(const BlobFileAddition& lhs, const BlobFileAddition& rhs);
-
-std::ostream& operator<<(std::ostream& os,
-                         const BlobFileAddition& blob_file_addition);
-JSONWriter& operator<<(JSONWriter& jw,
-                       const BlobFileAddition& blob_file_addition);
-
-}  // namespace ROCKSDB_NAMESPACE
@@ -1,206 +0,0 @@
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
-//  This source code is licensed under both the GPLv2 (found in the
-//  COPYING file in the root directory) and Apache 2.0 License
-//  (found in the LICENSE.Apache file in the root directory).
-
-#include "db/blob/blob_file_addition.h"
-
-#include <cstdint>
-#include <cstring>
-#include <string>
-
-#include "test_util/sync_point.h"
-#include "test_util/testharness.h"
-#include "util/coding.h"
-
-namespace ROCKSDB_NAMESPACE {
-
-class BlobFileAdditionTest : public testing::Test {
- public:
-  static void TestEncodeDecode(const BlobFileAddition& blob_file_addition) {
-    std::string encoded;
-    blob_file_addition.EncodeTo(&encoded);
-
-    BlobFileAddition decoded;
-    Slice input(encoded);
-    ASSERT_OK(decoded.DecodeFrom(&input));
-
-    ASSERT_EQ(blob_file_addition, decoded);
-  }
-};
-
-TEST_F(BlobFileAdditionTest, Empty) {
-  BlobFileAddition blob_file_addition;
-
-  ASSERT_EQ(blob_file_addition.GetBlobFileNumber(), kInvalidBlobFileNumber);
-  ASSERT_EQ(blob_file_addition.GetTotalBlobCount(), 0);
-  ASSERT_EQ(blob_file_addition.GetTotalBlobBytes(), 0);
-  ASSERT_TRUE(blob_file_addition.GetChecksumMethod().empty());
-  ASSERT_TRUE(blob_file_addition.GetChecksumValue().empty());
-
-  TestEncodeDecode(blob_file_addition);
-}
-
-TEST_F(BlobFileAdditionTest, NonEmpty) {
-  constexpr uint64_t blob_file_number = 123;
-  constexpr uint64_t total_blob_count = 2;
-  constexpr uint64_t total_blob_bytes = 123456;
-  const std::string checksum_method("SHA1");
-  const std::string checksum_value("bdb7f34a59dfa1592ce7f52e99f98c570c525cbd");
-
-  BlobFileAddition blob_file_addition(blob_file_number, total_blob_count,
-                                      total_blob_bytes, checksum_method,
-                                      checksum_value);
-
-  ASSERT_EQ(blob_file_addition.GetBlobFileNumber(), blob_file_number);
-  ASSERT_EQ(blob_file_addition.GetTotalBlobCount(), total_blob_count);
-  ASSERT_EQ(blob_file_addition.GetTotalBlobBytes(), total_blob_bytes);
-  ASSERT_EQ(blob_file_addition.GetChecksumMethod(), checksum_method);
-  ASSERT_EQ(blob_file_addition.GetChecksumValue(), checksum_value);
-
-  TestEncodeDecode(blob_file_addition);
-}
-
-TEST_F(BlobFileAdditionTest, DecodeErrors) {
-  std::string str;
-  Slice slice(str);
-
-  BlobFileAddition blob_file_addition;
-
-  {
-    const Status s = blob_file_addition.DecodeFrom(&slice);
-    ASSERT_TRUE(s.IsCorruption());
-    ASSERT_TRUE(std::strstr(s.getState(), "blob file number"));
-  }
-
-  constexpr uint64_t blob_file_number = 123;
-  PutVarint64(&str, blob_file_number);
-  slice = str;
-
-  {
-    const Status s = blob_file_addition.DecodeFrom(&slice);
-    ASSERT_TRUE(s.IsCorruption());
-    ASSERT_TRUE(std::strstr(s.getState(), "total blob count"));
-  }
-
-  constexpr uint64_t total_blob_count = 4567;
-  PutVarint64(&str, total_blob_count);
-  slice = str;
-
-  {
-    const Status s = blob_file_addition.DecodeFrom(&slice);
-    ASSERT_TRUE(s.IsCorruption());
-    ASSERT_TRUE(std::strstr(s.getState(), "total blob bytes"));
-  }
-
-  constexpr uint64_t total_blob_bytes = 12345678;
-  PutVarint64(&str, total_blob_bytes);
-  slice = str;
-
-  {
-    const Status s = blob_file_addition.DecodeFrom(&slice);
-    ASSERT_TRUE(s.IsCorruption());
-    ASSERT_TRUE(std::strstr(s.getState(), "checksum method"));
-  }
-
-  constexpr char checksum_method[] = "SHA1";
-  PutLengthPrefixedSlice(&str, checksum_method);
-  slice = str;
-
-  {
-    const Status s = blob_file_addition.DecodeFrom(&slice);
-    ASSERT_TRUE(s.IsCorruption());
-    ASSERT_TRUE(std::strstr(s.getState(), "checksum value"));
-  }
-
-  constexpr char checksum_value[] = "bdb7f34a59dfa1592ce7f52e99f98c570c525cbd";
-  PutLengthPrefixedSlice(&str, checksum_value);
-  slice = str;
-
-  {
-    const Status s = blob_file_addition.DecodeFrom(&slice);
-    ASSERT_TRUE(s.IsCorruption());
-    ASSERT_TRUE(std::strstr(s.getState(), "custom field tag"));
-  }
-
-  constexpr uint32_t custom_tag = 2;
-  PutVarint32(&str, custom_tag);
-  slice = str;
-
-  {
-    const Status s = blob_file_addition.DecodeFrom(&slice);
-    ASSERT_TRUE(s.IsCorruption());
-    ASSERT_TRUE(std::strstr(s.getState(), "custom field value"));
-  }
-}
-
-TEST_F(BlobFileAdditionTest, ForwardCompatibleCustomField) {
-  SyncPoint::GetInstance()->SetCallBack(
-      "BlobFileAddition::EncodeTo::CustomFields", [&](void* arg) {
-        std::string* output = static_cast<std::string*>(arg);
-
-        constexpr uint32_t forward_compatible_tag = 2;
-        PutVarint32(output, forward_compatible_tag);
-
-        PutLengthPrefixedSlice(output, "deadbeef");
-      });
-  SyncPoint::GetInstance()->EnableProcessing();
-
-  constexpr uint64_t blob_file_number = 678;
-  constexpr uint64_t total_blob_count = 9999;
-  constexpr uint64_t total_blob_bytes = 100000000;
-  const std::string checksum_method("CRC32");
-  const std::string checksum_value("3d87ff57");
-
-  BlobFileAddition blob_file_addition(blob_file_number, total_blob_count,
-                                      total_blob_bytes, checksum_method,
-                                      checksum_value);
-
-  TestEncodeDecode(blob_file_addition);
-
-  SyncPoint::GetInstance()->DisableProcessing();
-  SyncPoint::GetInstance()->ClearAllCallBacks();
-}
-
-TEST_F(BlobFileAdditionTest, ForwardIncompatibleCustomField) {
-  SyncPoint::GetInstance()->SetCallBack(
-      "BlobFileAddition::EncodeTo::CustomFields", [&](void* arg) {
-        std::string* output = static_cast<std::string*>(arg);
-
-        constexpr uint32_t forward_incompatible_tag = (1 << 6) + 1;
-        PutVarint32(output, forward_incompatible_tag);
-
-        PutLengthPrefixedSlice(output, "foobar");
-      });
-  SyncPoint::GetInstance()->EnableProcessing();
-
-  constexpr uint64_t blob_file_number = 456;
-  constexpr uint64_t total_blob_count = 100;
-  constexpr uint64_t total_blob_bytes = 2000000;
-  const std::string checksum_method("CRC32B");
-  const std::string checksum_value("6dbdf23a");
-
-  BlobFileAddition blob_file_addition(blob_file_number, total_blob_count,
-                                      total_blob_bytes, checksum_method,
-                                      checksum_value);
-
-  std::string encoded;
-  blob_file_addition.EncodeTo(&encoded);
-
-  BlobFileAddition decoded_blob_file_addition;
-  Slice input(encoded);
-  const Status s = decoded_blob_file_addition.DecodeFrom(&input);
-
-  ASSERT_TRUE(s.IsCorruption());
-  ASSERT_TRUE(std::strstr(s.getState(), "Forward incompatible"));
-
-  SyncPoint::GetInstance()->DisableProcessing();
-  SyncPoint::GetInstance()->ClearAllCallBacks();
-}
-
-}  // namespace ROCKSDB_NAMESPACE
-
-int main(int argc, char** argv) {
-  ::testing::InitGoogleTest(&argc, argv);
-  return RUN_ALL_TESTS();
-}
@@ -1,316 +0,0 @@
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
-//  This source code is licensed under both the GPLv2 (found in the
-//  COPYING file in the root directory) and Apache 2.0 License
-//  (found in the LICENSE.Apache file in the root directory).
-
-#include "db/blob/blob_file_builder.h"
-
-#include <cassert>
-
-#include "db/blob/blob_file_addition.h"
-#include "db/blob/blob_index.h"
-#include "db/blob/blob_log_format.h"
-#include "db/blob/blob_log_writer.h"
-#include "db/version_set.h"
-#include "file/filename.h"
-#include "file/read_write_util.h"
-#include "file/writable_file_writer.h"
-#include "logging/logging.h"
-#include "options/cf_options.h"
-#include "rocksdb/slice.h"
-#include "rocksdb/status.h"
-#include "test_util/sync_point.h"
-#include "util/compression.h"
-
-namespace ROCKSDB_NAMESPACE {
-
-BlobFileBuilder::BlobFileBuilder(
-    VersionSet* versions, Env* env, FileSystem* fs,
-    const ImmutableCFOptions* immutable_cf_options,
-    const MutableCFOptions* mutable_cf_options, const FileOptions* file_options,
-    int job_id, uint32_t column_family_id,
-    const std::string& column_family_name, Env::IOPriority io_priority,
-    Env::WriteLifeTimeHint write_hint,
-    std::vector<std::string>* blob_file_paths,
-    std::vector<BlobFileAddition>* blob_file_additions)
-    : BlobFileBuilder([versions]() { return versions->NewFileNumber(); }, env,
-                      fs, immutable_cf_options, mutable_cf_options,
-                      file_options, job_id, column_family_id,
-                      column_family_name, io_priority, write_hint,
-                      blob_file_paths, blob_file_additions) {}
-
-BlobFileBuilder::BlobFileBuilder(
-    std::function<uint64_t()> file_number_generator, Env* env, FileSystem* fs,
-    const ImmutableCFOptions* immutable_cf_options,
-    const MutableCFOptions* mutable_cf_options, const FileOptions* file_options,
-    int job_id, uint32_t column_family_id,
-    const std::string& column_family_name, Env::IOPriority io_priority,
-    Env::WriteLifeTimeHint write_hint,
-    std::vector<std::string>* blob_file_paths,
-    std::vector<BlobFileAddition>* blob_file_additions)
-    : file_number_generator_(std::move(file_number_generator)),
-      env_(env),
-      fs_(fs),
-      immutable_cf_options_(immutable_cf_options),
-      min_blob_size_(mutable_cf_options->min_blob_size),
-      blob_file_size_(mutable_cf_options->blob_file_size),
-      blob_compression_type_(mutable_cf_options->blob_compression_type),
-      file_options_(file_options),
-      job_id_(job_id),
-      column_family_id_(column_family_id),
-      column_family_name_(column_family_name),
-      io_priority_(io_priority),
-      write_hint_(write_hint),
-      blob_file_paths_(blob_file_paths),
-      blob_file_additions_(blob_file_additions),
-      blob_count_(0),
-      blob_bytes_(0) {
-  assert(file_number_generator_);
-  assert(env_);
-  assert(fs_);
-  assert(immutable_cf_options_);
-  assert(file_options_);
-  assert(blob_file_paths_);
-  assert(blob_file_paths_->empty());
-  assert(blob_file_additions_);
-  assert(blob_file_additions_->empty());
-}
-
-BlobFileBuilder::~BlobFileBuilder() = default;
-
-Status BlobFileBuilder::Add(const Slice& key, const Slice& value,
-                            std::string* blob_index) {
-  assert(blob_index);
-  assert(blob_index->empty());
-
-  if (value.size() < min_blob_size_) {
-    return Status::OK();
-  }
-
-  {
-    const Status s = OpenBlobFileIfNeeded();
-    if (!s.ok()) {
-      return s;
-    }
-  }
-
-  Slice blob = value;
-  std::string compressed_blob;
-
-  {
-    const Status s = CompressBlobIfNeeded(&blob, &compressed_blob);
-    if (!s.ok()) {
-      return s;
-    }
-  }
-
-  uint64_t blob_file_number = 0;
-  uint64_t blob_offset = 0;
-
-  {
-    const Status s =
-        WriteBlobToFile(key, blob, &blob_file_number, &blob_offset);
-    if (!s.ok()) {
-      return s;
-    }
-  }
-
-  {
-    const Status s = CloseBlobFileIfNeeded();
-    if (!s.ok()) {
-      return s;
-    }
-  }
-
-  BlobIndex::EncodeBlob(blob_index, blob_file_number, blob_offset, blob.size(),
-                        blob_compression_type_);
-
-  return Status::OK();
-}
-
-Status BlobFileBuilder::Finish() {
-  if (!IsBlobFileOpen()) {
-    return Status::OK();
-  }
-
-  return CloseBlobFile();
-}
-
-bool BlobFileBuilder::IsBlobFileOpen() const { return !!writer_; }
-
-Status BlobFileBuilder::OpenBlobFileIfNeeded() {
-  if (IsBlobFileOpen()) {
-    return Status::OK();
-  }
-
-  assert(!blob_count_);
-  assert(!blob_bytes_);
-
-  assert(file_number_generator_);
-  const uint64_t blob_file_number = file_number_generator_();
-
-  assert(immutable_cf_options_);
-  assert(!immutable_cf_options_->cf_paths.empty());
-  std::string blob_file_path = BlobFileName(
-      immutable_cf_options_->cf_paths.front().path, blob_file_number);
-
-  std::unique_ptr<FSWritableFile> file;
-
-  {
-    TEST_SYNC_POINT("BlobFileBuilder::OpenBlobFileIfNeeded:NewWritableFile");
-
-    assert(file_options_);
-    const Status s =
-        NewWritableFile(fs_, blob_file_path, &file, *file_options_);
-    if (!s.ok()) {
-      return s;
-    }
-  }
-
-  // Note: files get added to blob_file_paths_ right after the open, so they
-  // can be cleaned up upon failure. Contrast this with blob_file_additions_,
-  // which only contains successfully written files.
-  assert(blob_file_paths_);
-  blob_file_paths_->emplace_back(std::move(blob_file_path));
-
-  assert(file);
-  file->SetIOPriority(io_priority_);
-  file->SetWriteLifeTimeHint(write_hint_);
-
-  Statistics* const statistics = immutable_cf_options_->statistics;
-
-  std::unique_ptr<WritableFileWriter> file_writer(new WritableFileWriter(
-      std::move(file), blob_file_paths_->back(), *file_options_, env_,
-      nullptr /*IOTracer*/, statistics, immutable_cf_options_->listeners,
-      immutable_cf_options_->file_checksum_gen_factory));
-
-  std::unique_ptr<BlobLogWriter> blob_log_writer(
-      new BlobLogWriter(std::move(file_writer), env_, statistics,
-                        blob_file_number, immutable_cf_options_->use_fsync));
-
-  constexpr bool has_ttl = false;
-  constexpr ExpirationRange expiration_range;
-
-  BlobLogHeader header(column_family_id_, blob_compression_type_, has_ttl,
-                       expiration_range);
-
-  {
-    TEST_SYNC_POINT("BlobFileBuilder::OpenBlobFileIfNeeded:WriteHeader");
-
-    const Status s = blob_log_writer->WriteHeader(header);
-    if (!s.ok()) {
-      return s;
-    }
-  }
-
-  writer_ = std::move(blob_log_writer);
-
-  assert(IsBlobFileOpen());
-
-  return Status::OK();
-}
-
-Status BlobFileBuilder::CompressBlobIfNeeded(
-    Slice* blob, std::string* compressed_blob) const {
-  assert(blob);
-  assert(compressed_blob);
-  assert(compressed_blob->empty());
-
-  if (blob_compression_type_ == kNoCompression) {
-    return Status::OK();
-  }
-
-  CompressionOptions opts;
-  CompressionContext context(blob_compression_type_);
-  constexpr uint64_t sample_for_compression = 0;
-
-  CompressionInfo info(opts, context, CompressionDict::GetEmptyDict(),
-                       blob_compression_type_, sample_for_compression);
-
-  constexpr uint32_t compression_format_version = 2;
-
-  if (!CompressData(*blob, info, compression_format_version, compressed_blob)) {
-    return Status::Corruption("Error compressing blob");
-  }
-
-  *blob = Slice(*compressed_blob);
-
-  return Status::OK();
-}
-
-Status BlobFileBuilder::WriteBlobToFile(const Slice& key, const Slice& blob,
-                                        uint64_t* blob_file_number,
-                                        uint64_t* blob_offset) {
-  assert(IsBlobFileOpen());
-  assert(blob_file_number);
-  assert(blob_offset);
-
-  uint64_t key_offset = 0;
-
-  TEST_SYNC_POINT("BlobFileBuilder::WriteBlobToFile:AddRecord");
-
-  const Status s = writer_->AddRecord(key, blob, &key_offset, blob_offset);
-  if (!s.ok()) {
-    return s;
-  }
-
-  *blob_file_number = writer_->get_log_number();
-
-  ++blob_count_;
-  blob_bytes_ += BlobLogRecord::kHeaderSize + key.size() + blob.size();
-
-  return Status::OK();
-}
-
-Status BlobFileBuilder::CloseBlobFile() {
-  assert(IsBlobFileOpen());
-
-  BlobLogFooter footer;
-  footer.blob_count = blob_count_;
-
-  std::string checksum_method;
-  std::string checksum_value;
-
-  TEST_SYNC_POINT("BlobFileBuilder::WriteBlobToFile:AppendFooter");
-
-  const Status s =
-      writer_->AppendFooter(footer, &checksum_method, &checksum_value);
-  if (!s.ok()) {
-    return s;
-  }
-
-  const uint64_t blob_file_number = writer_->get_log_number();
-
-  assert(blob_file_additions_);
-  blob_file_additions_->emplace_back(blob_file_number, blob_count_, blob_bytes_,
-                                     std::move(checksum_method),
-                                     std::move(checksum_value));
-
-  assert(immutable_cf_options_);
-  ROCKS_LOG_INFO(immutable_cf_options_->info_log,
-                 "[%s] [JOB %d] Generated blob file #%" PRIu64 ": %" PRIu64
-                 " total blobs, %" PRIu64 " total bytes",
-                 column_family_name_.c_str(), job_id_, blob_file_number,
-                 blob_count_, blob_bytes_);
-
-  writer_.reset();
-  blob_count_ = 0;
-  blob_bytes_ = 0;
-
-  return Status::OK();
-}
-
-Status BlobFileBuilder::CloseBlobFileIfNeeded() {
-  assert(IsBlobFileOpen());
-
-  const WritableFileWriter* const file_writer = writer_->file();
-  assert(file_writer);
-
-  if (file_writer->GetFileSize() < blob_file_size_) {
-    return Status::OK();
-  }
-
-  return CloseBlobFile();
-}
-
-}  // namespace ROCKSDB_NAMESPACE
@@ -1,91 +0,0 @@
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
-//  This source code is licensed under both the GPLv2 (found in the
-//  COPYING file in the root directory) and Apache 2.0 License
-//  (found in the LICENSE.Apache file in the root directory).
-#pragma once
-
-#include <cinttypes>
-#include <functional>
-#include <memory>
-#include <string>
-#include <vector>
-
-#include "rocksdb/compression_type.h"
-#include "rocksdb/env.h"
-#include "rocksdb/rocksdb_namespace.h"
-
-namespace ROCKSDB_NAMESPACE {
-
-class VersionSet;
-class FileSystem;
-struct ImmutableCFOptions;
-struct MutableCFOptions;
-struct FileOptions;
-class BlobFileAddition;
-class Status;
-class Slice;
-class BlobLogWriter;
-
-class BlobFileBuilder {
- public:
-  BlobFileBuilder(VersionSet* versions, Env* env, FileSystem* fs,
-                  const ImmutableCFOptions* immutable_cf_options,
-                  const MutableCFOptions* mutable_cf_options,
-                  const FileOptions* file_options, int job_id,
-                  uint32_t column_family_id,
-                  const std::string& column_family_name,
-                  Env::IOPriority io_priority,
-                  Env::WriteLifeTimeHint write_hint,
-                  std::vector<std::string>* blob_file_paths,
-                  std::vector<BlobFileAddition>* blob_file_additions);
-
-  BlobFileBuilder(std::function<uint64_t()> file_number_generator, Env* env,
-                  FileSystem* fs,
-                  const ImmutableCFOptions* immutable_cf_options,
-                  const MutableCFOptions* mutable_cf_options,
-                  const FileOptions* file_options, int job_id,
-                  uint32_t column_family_id,
-                  const std::string& column_family_name,
-                  Env::IOPriority io_priority,
-                  Env::WriteLifeTimeHint write_hint,
-                  std::vector<std::string>* blob_file_paths,
-                  std::vector<BlobFileAddition>* blob_file_additions);
-
-  BlobFileBuilder(const BlobFileBuilder&) = delete;
-  BlobFileBuilder& operator=(const BlobFileBuilder&) = delete;
-
-  ~BlobFileBuilder();
-
-  Status Add(const Slice& key, const Slice& value, std::string* blob_index);
-  Status Finish();
-
- private:
-  bool IsBlobFileOpen() const;
-  Status OpenBlobFileIfNeeded();
-  Status CompressBlobIfNeeded(Slice* blob, std::string* compressed_blob) const;
-  Status WriteBlobToFile(const Slice& key, const Slice& blob,
-                         uint64_t* blob_file_number, uint64_t* blob_offset);
-  Status CloseBlobFile();
-  Status CloseBlobFileIfNeeded();
-
-  std::function<uint64_t()> file_number_generator_;
-  Env* env_;
-  FileSystem* fs_;
-  const ImmutableCFOptions* immutable_cf_options_;
-  uint64_t min_blob_size_;
-  uint64_t blob_file_size_;
-  CompressionType blob_compression_type_;
-  const FileOptions* file_options_;
-  int job_id_;
-  uint32_t column_family_id_;
-  std::string column_family_name_;
-  Env::IOPriority io_priority_;
-  Env::WriteLifeTimeHint write_hint_;
-  std::vector<std::string>* blob_file_paths_;
-  std::vector<BlobFileAddition>* blob_file_additions_;
-  std::unique_ptr<BlobLogWriter> writer_;
-  uint64_t blob_count_;
-  uint64_t blob_bytes_;
-};
-
-}  // namespace ROCKSDB_NAMESPACE
@@ -1,659 +0,0 @@
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
-//  This source code is licensed under both the GPLv2 (found in the
-//  COPYING file in the root directory) and Apache 2.0 License
-//  (found in the LICENSE.Apache file in the root directory).
-
-#include "db/blob/blob_file_builder.h"
-
-#include <cassert>
-#include <cinttypes>
-#include <string>
-#include <utility>
-#include <vector>
-
-#include "db/blob/blob_file_addition.h"
-#include "db/blob/blob_index.h"
-#include "db/blob/blob_log_format.h"
-#include "db/blob/blob_log_sequential_reader.h"
-#include "env/composite_env_wrapper.h"
-#include "env/mock_env.h"
-#include "file/filename.h"
-#include "file/random_access_file_reader.h"
-#include "options/cf_options.h"
-#include "rocksdb/env.h"
-#include "rocksdb/file_checksum.h"
-#include "rocksdb/options.h"
-#include "test_util/sync_point.h"
-#include "test_util/testharness.h"
-#include "util/compression.h"
-#include "utilities/fault_injection_env.h"
-
-namespace ROCKSDB_NAMESPACE {
-
-class TestFileNumberGenerator {
- public:
-  uint64_t operator()() { return ++next_file_number_; }
-
- private:
-  uint64_t next_file_number_ = 1;
-};
-
-class BlobFileBuilderTest : public testing::Test {
- protected:
-  BlobFileBuilderTest() : mock_env_(Env::Default()), fs_(&mock_env_) {}
-
-  void VerifyBlobFile(uint64_t blob_file_number,
-                      const std::string& blob_file_path,
-                      uint32_t column_family_id,
-                      CompressionType blob_compression_type,
-                      const std::vector<std::pair<std::string, std::string>>&
-                          expected_key_value_pairs,
-                      const std::vector<std::string>& blob_indexes) {
-    assert(expected_key_value_pairs.size() == blob_indexes.size());
-
-    std::unique_ptr<FSRandomAccessFile> file;
-    constexpr IODebugContext* dbg = nullptr;
-    ASSERT_OK(
-        fs_.NewRandomAccessFile(blob_file_path, file_options_, &file, dbg));
-
-    std::unique_ptr<RandomAccessFileReader> file_reader(
-        new RandomAccessFileReader(std::move(file), blob_file_path,
-                                   &mock_env_));
-
-    constexpr Statistics* statistics = nullptr;
-    BlobLogSequentialReader blob_log_reader(std::move(file_reader), &mock_env_,
-                                            statistics);
-
-    BlobLogHeader header;
-    ASSERT_OK(blob_log_reader.ReadHeader(&header));
-    ASSERT_EQ(header.version, kVersion1);
-    ASSERT_EQ(header.column_family_id, column_family_id);
-    ASSERT_EQ(header.compression, blob_compression_type);
-    ASSERT_FALSE(header.has_ttl);
-    ASSERT_EQ(header.expiration_range, ExpirationRange());
-
-    for (size_t i = 0; i < expected_key_value_pairs.size(); ++i) {
-      BlobLogRecord record;
-      uint64_t blob_offset = 0;
-
-      ASSERT_OK(blob_log_reader.ReadRecord(
-          &record, BlobLogSequentialReader::kReadHeaderKeyBlob, &blob_offset));
-
-      // Check the contents of the blob file
-      const auto& expected_key_value = expected_key_value_pairs[i];
-      const auto& key = expected_key_value.first;
-      const auto& value = expected_key_value.second;
-
-      ASSERT_EQ(record.key_size, key.size());
-      ASSERT_EQ(record.value_size, value.size());
-      ASSERT_EQ(record.expiration, 0);
-      ASSERT_EQ(record.key, key);
-      ASSERT_EQ(record.value, value);
-
-      // Make sure the blob reference returned by the builder points to the
-      // right place
-      BlobIndex blob_index;
-      ASSERT_OK(blob_index.DecodeFrom(blob_indexes[i]));
-      ASSERT_FALSE(blob_index.IsInlined());
-      ASSERT_FALSE(blob_index.HasTTL());
-      ASSERT_EQ(blob_index.file_number(), blob_file_number);
-      ASSERT_EQ(blob_index.offset(), blob_offset);
-      ASSERT_EQ(blob_index.size(), value.size());
-    }
-
-    BlobLogFooter footer;
-    ASSERT_OK(blob_log_reader.ReadFooter(&footer));
-    ASSERT_EQ(footer.blob_count, expected_key_value_pairs.size());
-    ASSERT_EQ(footer.expiration_range, ExpirationRange());
-  }
-
-  MockEnv mock_env_;
-  LegacyFileSystemWrapper fs_;
-  FileOptions file_options_;
-};
-
-TEST_F(BlobFileBuilderTest, BuildAndCheckOneFile) {
-  // Build a single blob file
-  constexpr size_t number_of_blobs = 10;
-  constexpr size_t key_size = 1;
-  constexpr size_t value_size = 4;
-  constexpr size_t value_offset = 1234;
-
-  Options options;
-  options.cf_paths.emplace_back(
-      test::PerThreadDBPath(&mock_env_,
-                            "BlobFileBuilderTest_BuildAndCheckOneFile"),
-      0);
-  options.enable_blob_files = true;
-
-  ImmutableCFOptions immutable_cf_options(options);
-  MutableCFOptions mutable_cf_options(options);
-
-  constexpr int job_id = 1;
-  constexpr uint32_t column_family_id = 123;
-  constexpr char column_family_name[] = "foobar";
-  constexpr Env::IOPriority io_priority = Env::IO_HIGH;
-  constexpr Env::WriteLifeTimeHint write_hint = Env::WLTH_MEDIUM;
-
-  std::vector<std::string> blob_file_paths;
-  std::vector<BlobFileAddition> blob_file_additions;
-
-  BlobFileBuilder builder(TestFileNumberGenerator(), &mock_env_, &fs_,
-                          &immutable_cf_options, &mutable_cf_options,
-                          &file_options_, job_id, column_family_id,
-                          column_family_name, io_priority, write_hint,
-                          &blob_file_paths, &blob_file_additions);
-
-  std::vector<std::pair<std::string, std::string>> expected_key_value_pairs(
-      number_of_blobs);
-  std::vector<std::string> blob_indexes(number_of_blobs);
-
-  for (size_t i = 0; i < number_of_blobs; ++i) {
-    auto& expected_key_value = expected_key_value_pairs[i];
-
-    auto& key = expected_key_value.first;
-    key = std::to_string(i);
-    assert(key.size() == key_size);
-
-    auto& value = expected_key_value.second;
-    value = std::to_string(i + value_offset);
-    assert(value.size() == value_size);
-
-    auto& blob_index = blob_indexes[i];
-
-    ASSERT_OK(builder.Add(key, value, &blob_index));
-    ASSERT_FALSE(blob_index.empty());
-  }
-
-  ASSERT_OK(builder.Finish());
-
-  // Check the metadata generated
-  constexpr uint64_t blob_file_number = 2;
-
-  ASSERT_EQ(blob_file_paths.size(), 1);
-
-  const std::string& blob_file_path = blob_file_paths[0];
-
-  ASSERT_EQ(blob_file_path,
-            BlobFileName(immutable_cf_options.cf_paths.front().path,
-                         blob_file_number));
-
-  ASSERT_EQ(blob_file_additions.size(), 1);
-
-  const auto& blob_file_addition = blob_file_additions[0];
-
-  ASSERT_EQ(blob_file_addition.GetBlobFileNumber(), blob_file_number);
-  ASSERT_EQ(blob_file_addition.GetTotalBlobCount(), number_of_blobs);
-  ASSERT_EQ(
-      blob_file_addition.GetTotalBlobBytes(),
-      number_of_blobs * (BlobLogRecord::kHeaderSize + key_size + value_size));
-
-  // Verify the contents of the new blob file as well as the blob references
-  VerifyBlobFile(blob_file_number, blob_file_path, column_family_id,
-                 kNoCompression, expected_key_value_pairs, blob_indexes);
-}
-
-TEST_F(BlobFileBuilderTest, BuildAndCheckMultipleFiles) {
-  // Build multiple blob files: file size limit is set to the size of a single
-  // value, so each blob ends up in a file of its own
-  constexpr size_t number_of_blobs = 10;
-  constexpr size_t key_size = 1;
-  constexpr size_t value_size = 10;
-  constexpr size_t value_offset = 1234567890;
-
-  Options options;
-  options.cf_paths.emplace_back(
-      test::PerThreadDBPath(&mock_env_,
-                            "BlobFileBuilderTest_BuildAndCheckMultipleFiles"),
-      0);
-  options.enable_blob_files = true;
-  options.blob_file_size = value_size;
-
-  ImmutableCFOptions immutable_cf_options(options);
-  MutableCFOptions mutable_cf_options(options);
-
-  constexpr int job_id = 1;
-  constexpr uint32_t column_family_id = 123;
-  constexpr char column_family_name[] = "foobar";
-  constexpr Env::IOPriority io_priority = Env::IO_HIGH;
-  constexpr Env::WriteLifeTimeHint write_hint = Env::WLTH_MEDIUM;
-
-  std::vector<std::string> blob_file_paths;
-  std::vector<BlobFileAddition> blob_file_additions;
-
-  BlobFileBuilder builder(TestFileNumberGenerator(), &mock_env_, &fs_,
-                          &immutable_cf_options, &mutable_cf_options,
-                          &file_options_, job_id, column_family_id,
-                          column_family_name, io_priority, write_hint,
-                          &blob_file_paths, &blob_file_additions);
-
-  std::vector<std::pair<std::string, std::string>> expected_key_value_pairs(
-      number_of_blobs);
-  std::vector<std::string> blob_indexes(number_of_blobs);
-
-  for (size_t i = 0; i < number_of_blobs; ++i) {
-    auto& expected_key_value = expected_key_value_pairs[i];
-
-    auto& key = expected_key_value.first;
-    key = std::to_string(i);
-    assert(key.size() == key_size);
-
-    auto& value = expected_key_value.second;
-    value = std::to_string(i + value_offset);
-    assert(value.size() == value_size);
-
-    auto& blob_index = blob_indexes[i];
-
-    ASSERT_OK(builder.Add(key, value, &blob_index));
-    ASSERT_FALSE(blob_index.empty());
-  }
-
-  ASSERT_OK(builder.Finish());
-
-  // Check the metadata generated
-  ASSERT_EQ(blob_file_paths.size(), number_of_blobs);
-  ASSERT_EQ(blob_file_additions.size(), number_of_blobs);
-
-  for (size_t i = 0; i < number_of_blobs; ++i) {
-    const uint64_t blob_file_number = i + 2;
-
-    ASSERT_EQ(blob_file_paths[i],
-              BlobFileName(immutable_cf_options.cf_paths.front().path,
-                           blob_file_number));
-
-    const auto& blob_file_addition = blob_file_additions[i];
-
-    ASSERT_EQ(blob_file_addition.GetBlobFileNumber(), blob_file_number);
-    ASSERT_EQ(blob_file_addition.GetTotalBlobCount(), 1);
-    ASSERT_EQ(blob_file_addition.GetTotalBlobBytes(),
-              BlobLogRecord::kHeaderSize + key_size + value_size);
-  }
-
-  // Verify the contents of the new blob files as well as the blob references
-  for (size_t i = 0; i < number_of_blobs; ++i) {
-    std::vector<std::pair<std::string, std::string>> expected_key_value_pair{
-        expected_key_value_pairs[i]};
-    std::vector<std::string> blob_index{blob_indexes[i]};
-
-    VerifyBlobFile(i + 2, blob_file_paths[i], column_family_id, kNoCompression,
-                   expected_key_value_pair, blob_index);
-  }
-}
-
-TEST_F(BlobFileBuilderTest, InlinedValues) {
-  // All values are below the min_blob_size threshold; no blob files get written
-  constexpr size_t number_of_blobs = 10;
-  constexpr size_t key_size = 1;
-  constexpr size_t value_size = 10;
-  constexpr size_t value_offset = 1234567890;
-
-  Options options;
-  options.cf_paths.emplace_back(
-      test::PerThreadDBPath(&mock_env_, "BlobFileBuilderTest_InlinedValues"),
-      0);
-  options.enable_blob_files = true;
-  options.min_blob_size = 1024;
-
-  ImmutableCFOptions immutable_cf_options(options);
-  MutableCFOptions mutable_cf_options(options);
-
-  constexpr int job_id = 1;
-  constexpr uint32_t column_family_id = 123;
-  constexpr char column_family_name[] = "foobar";
-  constexpr Env::IOPriority io_priority = Env::IO_HIGH;
-  constexpr Env::WriteLifeTimeHint write_hint = Env::WLTH_MEDIUM;
-
-  std::vector<std::string> blob_file_paths;
-  std::vector<BlobFileAddition> blob_file_additions;
-
-  BlobFileBuilder builder(TestFileNumberGenerator(), &mock_env_, &fs_,
-                          &immutable_cf_options, &mutable_cf_options,
-                          &file_options_, job_id, column_family_id,
-                          column_family_name, io_priority, write_hint,
-                          &blob_file_paths, &blob_file_additions);
-
-  for (size_t i = 0; i < number_of_blobs; ++i) {
-    const std::string key = std::to_string(i);
-    assert(key.size() == key_size);
-
-    const std::string value = std::to_string(i + value_offset);
-    assert(value.size() == value_size);
-
-    std::string blob_index;
-    ASSERT_OK(builder.Add(key, value, &blob_index));
-    ASSERT_TRUE(blob_index.empty());
-  }
-
-  ASSERT_OK(builder.Finish());
-
-  // Check the metadata generated
-  ASSERT_TRUE(blob_file_paths.empty());
-  ASSERT_TRUE(blob_file_additions.empty());
-}
-
-TEST_F(BlobFileBuilderTest, Compression) {
-  // Build a blob file with a compressed blob
-  if (!Snappy_Supported()) {
-    return;
-  }
-
-  constexpr size_t key_size = 1;
-  constexpr size_t value_size = 100;
-
-  Options options;
-  options.cf_paths.emplace_back(
-      test::PerThreadDBPath(&mock_env_, "BlobFileBuilderTest_Compression"), 0);
-  options.enable_blob_files = true;
-  options.blob_compression_type = kSnappyCompression;
-
-  ImmutableCFOptions immutable_cf_options(options);
-  MutableCFOptions mutable_cf_options(options);
-
-  constexpr int job_id = 1;
-  constexpr uint32_t column_family_id = 123;
-  constexpr char column_family_name[] = "foobar";
-  constexpr Env::IOPriority io_priority = Env::IO_HIGH;
-  constexpr Env::WriteLifeTimeHint write_hint = Env::WLTH_MEDIUM;
-
-  std::vector<std::string> blob_file_paths;
-  std::vector<BlobFileAddition> blob_file_additions;
-
-  BlobFileBuilder builder(TestFileNumberGenerator(), &mock_env_, &fs_,
-                          &immutable_cf_options, &mutable_cf_options,
-                          &file_options_, job_id, column_family_id,
-                          column_family_name, io_priority, write_hint,
-                          &blob_file_paths, &blob_file_additions);
-
-  const std::string key("1");
-  const std::string uncompressed_value(value_size, 'x');
-
-  std::string blob_index;
-
-  ASSERT_OK(builder.Add(key, uncompressed_value, &blob_index));
-  ASSERT_FALSE(blob_index.empty());
-
-  ASSERT_OK(builder.Finish());
-
-  // Check the metadata generated
-  constexpr uint64_t blob_file_number = 2;
-
-  ASSERT_EQ(blob_file_paths.size(), 1);
-
-  const std::string& blob_file_path = blob_file_paths[0];
-
-  ASSERT_EQ(blob_file_path,
-            BlobFileName(immutable_cf_options.cf_paths.front().path,
-                         blob_file_number));
-
-  ASSERT_EQ(blob_file_additions.size(), 1);
-
-  const auto& blob_file_addition = blob_file_additions[0];
-
-  ASSERT_EQ(blob_file_addition.GetBlobFileNumber(), blob_file_number);
-  ASSERT_EQ(blob_file_addition.GetTotalBlobCount(), 1);
-
-  CompressionOptions opts;
-  CompressionContext context(kSnappyCompression);
-  constexpr uint64_t sample_for_compression = 0;
-
-  CompressionInfo info(opts, context, CompressionDict::GetEmptyDict(),
-                       kSnappyCompression, sample_for_compression);
-
-  std::string compressed_value;
-  ASSERT_TRUE(Snappy_Compress(info, uncompressed_value.data(),
-                              uncompressed_value.size(), &compressed_value));
-
-  ASSERT_EQ(blob_file_addition.GetTotalBlobBytes(),
-            BlobLogRecord::kHeaderSize + key_size + compressed_value.size());
-
-  // Verify the contents of the new blob file as well as the blob reference
-  std::vector<std::pair<std::string, std::string>> expected_key_value_pairs{
-      {key, compressed_value}};
-  std::vector<std::string> blob_indexes{blob_index};
-
-  VerifyBlobFile(blob_file_number, blob_file_path, column_family_id,
-                 kSnappyCompression, expected_key_value_pairs, blob_indexes);
-}
-
-TEST_F(BlobFileBuilderTest, CompressionError) {
-  // Simulate an error during compression
-  if (!Snappy_Supported()) {
-    return;
-  }
-
-  Options options;
-  options.cf_paths.emplace_back(
-      test::PerThreadDBPath(&mock_env_, "BlobFileBuilderTest_CompressionError"),
-      0);
-  options.enable_blob_files = true;
-  options.blob_compression_type = kSnappyCompression;
-
-  ImmutableCFOptions immutable_cf_options(options);
-  MutableCFOptions mutable_cf_options(options);
-
-  constexpr int job_id = 1;
-  constexpr uint32_t column_family_id = 123;
-  constexpr char column_family_name[] = "foobar";
-  constexpr Env::IOPriority io_priority = Env::IO_HIGH;
-  constexpr Env::WriteLifeTimeHint write_hint = Env::WLTH_MEDIUM;
-
-  std::vector<std::string> blob_file_paths;
-  std::vector<BlobFileAddition> blob_file_additions;
-
-  BlobFileBuilder builder(TestFileNumberGenerator(), &mock_env_, &fs_,
-                          &immutable_cf_options, &mutable_cf_options,
-                          &file_options_, job_id, column_family_id,
-                          column_family_name, io_priority, write_hint,
-                          &blob_file_paths, &blob_file_additions);
-
-  SyncPoint::GetInstance()->SetCallBack("CompressData:TamperWithReturnValue",
-                                        [](void* arg) {
-                                          bool* ret = static_cast<bool*>(arg);
-                                          *ret = false;
-                                        });
-  SyncPoint::GetInstance()->EnableProcessing();
-
-  constexpr char key[] = "1";
-  constexpr char value[] = "deadbeef";
-
-  std::string blob_index;
-
-  ASSERT_TRUE(builder.Add(key, value, &blob_index).IsCorruption());
-
-  SyncPoint::GetInstance()->DisableProcessing();
-  SyncPoint::GetInstance()->ClearAllCallBacks();
-
-  constexpr uint64_t blob_file_number = 2;
-
-  ASSERT_EQ(blob_file_paths.size(), 1);
-  ASSERT_EQ(blob_file_paths[0],
-            BlobFileName(immutable_cf_options.cf_paths.front().path,
-                         blob_file_number));
-
-  ASSERT_TRUE(blob_file_additions.empty());
-}
-
-TEST_F(BlobFileBuilderTest, Checksum) {
-  // Build a blob file with checksum
-
-  class DummyFileChecksumGenerator : public FileChecksumGenerator {
-   public:
-    void Update(const char* /* data */, size_t /* n */) override {}
-
-    void Finalize() override {}
-
-    std::string GetChecksum() const override { return std::string("dummy"); }
-
-    const char* Name() const override { return "DummyFileChecksum"; }
-  };
-
-  class DummyFileChecksumGenFactory : public FileChecksumGenFactory {
-   public:
-    std::unique_ptr<FileChecksumGenerator> CreateFileChecksumGenerator(
-        const FileChecksumGenContext& /* context */) override {
-      return std::unique_ptr<FileChecksumGenerator>(
-          new DummyFileChecksumGenerator);
-    }
-
-    const char* Name() const override { return "DummyFileChecksumGenFactory"; }
-  };
-
-  Options options;
-  options.cf_paths.emplace_back(
-      test::PerThreadDBPath(&mock_env_, "BlobFileBuilderTest_Checksum"), 0);
-  options.enable_blob_files = true;
-  options.file_checksum_gen_factory =
-      std::make_shared<DummyFileChecksumGenFactory>();
-
-  ImmutableCFOptions immutable_cf_options(options);
-  MutableCFOptions mutable_cf_options(options);
-
-  constexpr int job_id = 1;
-  constexpr uint32_t column_family_id = 123;
-  constexpr char column_family_name[] = "foobar";
-  constexpr Env::IOPriority io_priority = Env::IO_HIGH;
-  constexpr Env::WriteLifeTimeHint write_hint = Env::WLTH_MEDIUM;
-
-  std::vector<std::string> blob_file_paths;
-  std::vector<BlobFileAddition> blob_file_additions;
-
-  BlobFileBuilder builder(TestFileNumberGenerator(), &mock_env_, &fs_,
-                          &immutable_cf_options, &mutable_cf_options,
-                          &file_options_, job_id, column_family_id,
-                          column_family_name, io_priority, write_hint,
-                          &blob_file_paths, &blob_file_additions);
-
-  const std::string key("1");
-  const std::string value("deadbeef");
-
-  std::string blob_index;
-
-  ASSERT_OK(builder.Add(key, value, &blob_index));
-  ASSERT_FALSE(blob_index.empty());
-
-  ASSERT_OK(builder.Finish());
-
-  // Check the metadata generated
-  constexpr uint64_t blob_file_number = 2;
-
-  ASSERT_EQ(blob_file_paths.size(), 1);
-
-  const std::string& blob_file_path = blob_file_paths[0];
-
-  ASSERT_EQ(blob_file_path,
-            BlobFileName(immutable_cf_options.cf_paths.front().path,
-                         blob_file_number));
-
-  ASSERT_EQ(blob_file_additions.size(), 1);
-
-  const auto& blob_file_addition = blob_file_additions[0];
-
-  ASSERT_EQ(blob_file_addition.GetBlobFileNumber(), blob_file_number);
-  ASSERT_EQ(blob_file_addition.GetTotalBlobCount(), 1);
-  ASSERT_EQ(blob_file_addition.GetTotalBlobBytes(),
-            BlobLogRecord::kHeaderSize + key.size() + value.size());
-  ASSERT_EQ(blob_file_addition.GetChecksumMethod(), "DummyFileChecksum");
-  ASSERT_EQ(blob_file_addition.GetChecksumValue(), "dummy");
-
-  // Verify the contents of the new blob file as well as the blob reference
-  std::vector<std::pair<std::string, std::string>> expected_key_value_pairs{
-      {key, value}};
-  std::vector<std::string> blob_indexes{blob_index};
-
-  VerifyBlobFile(blob_file_number, blob_file_path, column_family_id,
-                 kNoCompression, expected_key_value_pairs, blob_indexes);
-}
-
-class BlobFileBuilderIOErrorTest
-    : public testing::Test,
-      public testing::WithParamInterface<std::string> {
- protected:
-  BlobFileBuilderIOErrorTest()
-      : mock_env_(Env::Default()),
-        fault_injection_env_(&mock_env_),
-        fs_(&fault_injection_env_),
-        sync_point_(GetParam()) {}
-
-  MockEnv mock_env_;
-  FaultInjectionTestEnv fault_injection_env_;
-  LegacyFileSystemWrapper fs_;
-  FileOptions file_options_;
-  std::string sync_point_;
-};
-
-INSTANTIATE_TEST_CASE_P(
-    BlobFileBuilderTest, BlobFileBuilderIOErrorTest,
-    ::testing::ValuesIn(std::vector<std::string>{
-        "BlobFileBuilder::OpenBlobFileIfNeeded:NewWritableFile",
-        "BlobFileBuilder::OpenBlobFileIfNeeded:WriteHeader",
-        "BlobFileBuilder::WriteBlobToFile:AddRecord",
-        "BlobFileBuilder::WriteBlobToFile:AppendFooter"}));
-
-TEST_P(BlobFileBuilderIOErrorTest, IOError) {
-  // Simulate an I/O error during the specified step of Add()
-  // Note: blob_file_size will be set to value_size in order for the first blob
-  // to trigger close
-  constexpr size_t value_size = 8;
-
-  Options options;
-  options.cf_paths.emplace_back(
-      test::PerThreadDBPath(&fault_injection_env_,
-                            "BlobFileBuilderIOErrorTest_IOError"),
-      0);
-  options.enable_blob_files = true;
-  options.blob_file_size = value_size;
-
-  ImmutableCFOptions immutable_cf_options(options);
-  MutableCFOptions mutable_cf_options(options);
-
-  constexpr int job_id = 1;
-  constexpr uint32_t column_family_id = 123;
-  constexpr char column_family_name[] = "foobar";
-  constexpr Env::IOPriority io_priority = Env::IO_HIGH;
-  constexpr Env::WriteLifeTimeHint write_hint = Env::WLTH_MEDIUM;
-
-  std::vector<std::string> blob_file_paths;
-  std::vector<BlobFileAddition> blob_file_additions;
-
-  BlobFileBuilder builder(TestFileNumberGenerator(), &fault_injection_env_,
-                          &fs_, &immutable_cf_options, &mutable_cf_options,
-                          &file_options_, job_id, column_family_id,
-                          column_family_name, io_priority, write_hint,
-                          &blob_file_paths, &blob_file_additions);
-
-  SyncPoint::GetInstance()->SetCallBack(sync_point_, [this](void* /* arg */) {
-    fault_injection_env_.SetFilesystemActive(false,
-                                             Status::IOError(sync_point_));
-  });
-  SyncPoint::GetInstance()->EnableProcessing();
-
-  constexpr char key[] = "1";
-  constexpr char value[] = "deadbeef";
-
-  std::string blob_index;
-
-  ASSERT_TRUE(builder.Add(key, value, &blob_index).IsIOError());
-
-  SyncPoint::GetInstance()->DisableProcessing();
-  SyncPoint::GetInstance()->ClearAllCallBacks();
-
-  if (sync_point_ == "BlobFileBuilder::OpenBlobFileIfNeeded:NewWritableFile") {
-    ASSERT_TRUE(blob_file_paths.empty());
-  } else {
-    constexpr uint64_t blob_file_number = 2;
-
-    ASSERT_EQ(blob_file_paths.size(), 1);
-    ASSERT_EQ(blob_file_paths[0],
-              BlobFileName(immutable_cf_options.cf_paths.front().path,
-                           blob_file_number));
-  }
-
-  ASSERT_TRUE(blob_file_additions.empty());
-}
-
-}  // namespace ROCKSDB_NAMESPACE
-
-int main(int argc, char** argv) {
-  ::testing::InitGoogleTest(&argc, argv);
-  return RUN_ALL_TESTS();
-}
@@ -1,134 +0,0 @@
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
-//  This source code is licensed under both the GPLv2 (found in the
-//  COPYING file in the root directory) and Apache 2.0 License
-//  (found in the LICENSE.Apache file in the root directory).
-
-#include "db/blob/blob_file_garbage.h"
-
-#include <ostream>
-#include <sstream>
-
-#include "logging/event_logger.h"
-#include "rocksdb/slice.h"
-#include "rocksdb/status.h"
-#include "test_util/sync_point.h"
-#include "util/coding.h"
-
-namespace ROCKSDB_NAMESPACE {
-
-// Tags for custom fields. Note that these get persisted in the manifest,
-// so existing tags should not be modified.
-enum BlobFileGarbage::CustomFieldTags : uint32_t {
-  kEndMarker,
-
-  // Add forward compatible fields here
-
-  /////////////////////////////////////////////////////////////////////
-
-  kForwardIncompatibleMask = 1 << 6,
-
-  // Add forward incompatible fields here
-};
-
-void BlobFileGarbage::EncodeTo(std::string* output) const {
-  PutVarint64(output, blob_file_number_);
-  PutVarint64(output, garbage_blob_count_);
-  PutVarint64(output, garbage_blob_bytes_);
-
-  // Encode any custom fields here. The format to use is a Varint32 tag (see
-  // CustomFieldTags above) followed by a length prefixed slice. Unknown custom
-  // fields will be ignored during decoding unless they're in the forward
-  // incompatible range.
-
-  TEST_SYNC_POINT_CALLBACK("BlobFileGarbage::EncodeTo::CustomFields", output);
-
-  PutVarint32(output, kEndMarker);
-}
-
-Status BlobFileGarbage::DecodeFrom(Slice* input) {
-  constexpr char class_name[] = "BlobFileGarbage";
-
-  if (!GetVarint64(input, &blob_file_number_)) {
-    return Status::Corruption(class_name, "Error decoding blob file number");
-  }
-
-  if (!GetVarint64(input, &garbage_blob_count_)) {
-    return Status::Corruption(class_name, "Error decoding garbage blob count");
-  }
-
-  if (!GetVarint64(input, &garbage_blob_bytes_)) {
-    return Status::Corruption(class_name, "Error decoding garbage blob bytes");
-  }
-
-  while (true) {
-    uint32_t custom_field_tag = 0;
-    if (!GetVarint32(input, &custom_field_tag)) {
-      return Status::Corruption(class_name, "Error decoding custom field tag");
-    }
-
-    if (custom_field_tag == kEndMarker) {
-      break;
-    }
-
-    if (custom_field_tag & kForwardIncompatibleMask) {
-      return Status::Corruption(
-          class_name, "Forward incompatible custom field encountered");
-    }
-
-    Slice custom_field_value;
-    if (!GetLengthPrefixedSlice(input, &custom_field_value)) {
-      return Status::Corruption(class_name,
-                                "Error decoding custom field value");
-    }
-  }
-
-  return Status::OK();
-}
-
-std::string BlobFileGarbage::DebugString() const {
-  std::ostringstream oss;
-
-  oss << *this;
-
-  return oss.str();
-}
-
-std::string BlobFileGarbage::DebugJSON() const {
-  JSONWriter jw;
-
-  jw << *this;
-
-  jw.EndObject();
-
-  return jw.Get();
-}
-
-bool operator==(const BlobFileGarbage& lhs, const BlobFileGarbage& rhs) {
-  return lhs.GetBlobFileNumber() == rhs.GetBlobFileNumber() &&
-         lhs.GetGarbageBlobCount() == rhs.GetGarbageBlobCount() &&
-         lhs.GetGarbageBlobBytes() == rhs.GetGarbageBlobBytes();
-}
-
-bool operator!=(const BlobFileGarbage& lhs, const BlobFileGarbage& rhs) {
-  return !(lhs == rhs);
-}
-
-std::ostream& operator<<(std::ostream& os,
-                         const BlobFileGarbage& blob_file_garbage) {
-  os << "blob_file_number: " << blob_file_garbage.GetBlobFileNumber()
-     << " garbage_blob_count: " << blob_file_garbage.GetGarbageBlobCount()
-     << " garbage_blob_bytes: " << blob_file_garbage.GetGarbageBlobBytes();
-
-  return os;
-}
-
-JSONWriter& operator<<(JSONWriter& jw,
-                       const BlobFileGarbage& blob_file_garbage) {
-  jw << "BlobFileNumber" << blob_file_garbage.GetBlobFileNumber()
-     << "GarbageBlobCount" << blob_file_garbage.GetGarbageBlobCount()
-     << "GarbageBlobBytes" << blob_file_garbage.GetGarbageBlobBytes();
-
-  return jw;
-}
-
-}  // namespace ROCKSDB_NAMESPACE
@@ -1,57 +0,0 @@
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
-//  This source code is licensed under both the GPLv2 (found in the
-//  COPYING file in the root directory) and Apache 2.0 License
-//  (found in the LICENSE.Apache file in the root directory).
-
-#pragma once
-
-#include <cstdint>
-#include <iosfwd>
-#include <string>
-
-#include "db/blob/blob_constants.h"
-#include "rocksdb/rocksdb_namespace.h"
-
-namespace ROCKSDB_NAMESPACE {
-
-class JSONWriter;
-class Slice;
-class Status;
-
-class BlobFileGarbage {
- public:
-  BlobFileGarbage() = default;
-
-  BlobFileGarbage(uint64_t blob_file_number, uint64_t garbage_blob_count,
-                  uint64_t garbage_blob_bytes)
-      : blob_file_number_(blob_file_number),
-        garbage_blob_count_(garbage_blob_count),
-        garbage_blob_bytes_(garbage_blob_bytes) {}
-
-  uint64_t GetBlobFileNumber() const { return blob_file_number_; }
-  uint64_t GetGarbageBlobCount() const { return garbage_blob_count_; }
-  uint64_t GetGarbageBlobBytes() const { return garbage_blob_bytes_; }
-
-  void EncodeTo(std::string* output) const;
-  Status DecodeFrom(Slice* input);
-
-  std::string DebugString() const;
-  std::string DebugJSON() const;
-
- private:
-  enum CustomFieldTags : uint32_t;
-
-  uint64_t blob_file_number_ = kInvalidBlobFileNumber;
-  uint64_t garbage_blob_count_ = 0;
-  uint64_t garbage_blob_bytes_ = 0;
-};
-
-bool operator==(const BlobFileGarbage& lhs, const BlobFileGarbage& rhs);
-bool operator!=(const BlobFileGarbage& lhs, const BlobFileGarbage& rhs);
-
-std::ostream& operator<<(std::ostream& os,
-                         const BlobFileGarbage& blob_file_garbage);
-JSONWriter& operator<<(JSONWriter& jw,
-                       const BlobFileGarbage& blob_file_garbage);
-
-}  // namespace ROCKSDB_NAMESPACE
@@ -1,173 +0,0 @@
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
-//  This source code is licensed under both the GPLv2 (found in the
-//  COPYING file in the root directory) and Apache 2.0 License
-//  (found in the LICENSE.Apache file in the root directory).
-
-#include "db/blob/blob_file_garbage.h"
-
-#include <cstdint>
-#include <cstring>
-#include <string>
-
-#include "test_util/sync_point.h"
-#include "test_util/testharness.h"
-#include "util/coding.h"
-
-namespace ROCKSDB_NAMESPACE {
-
-class BlobFileGarbageTest : public testing::Test {
- public:
-  static void TestEncodeDecode(const BlobFileGarbage& blob_file_garbage) {
-    std::string encoded;
-    blob_file_garbage.EncodeTo(&encoded);
-
-    BlobFileGarbage decoded;
-    Slice input(encoded);
-    ASSERT_OK(decoded.DecodeFrom(&input));
-
-    ASSERT_EQ(blob_file_garbage, decoded);
-  }
-};
-
-TEST_F(BlobFileGarbageTest, Empty) {
-  BlobFileGarbage blob_file_garbage;
-
-  ASSERT_EQ(blob_file_garbage.GetBlobFileNumber(), kInvalidBlobFileNumber);
-  ASSERT_EQ(blob_file_garbage.GetGarbageBlobCount(), 0);
-  ASSERT_EQ(blob_file_garbage.GetGarbageBlobBytes(), 0);
-
-  TestEncodeDecode(blob_file_garbage);
-}
-
-TEST_F(BlobFileGarbageTest, NonEmpty) {
-  constexpr uint64_t blob_file_number = 123;
-  constexpr uint64_t garbage_blob_count = 1;
-  constexpr uint64_t garbage_blob_bytes = 9876;
-
-  BlobFileGarbage blob_file_garbage(blob_file_number, garbage_blob_count,
-                                    garbage_blob_bytes);
-
-  ASSERT_EQ(blob_file_garbage.GetBlobFileNumber(), blob_file_number);
-  ASSERT_EQ(blob_file_garbage.GetGarbageBlobCount(), garbage_blob_count);
-  ASSERT_EQ(blob_file_garbage.GetGarbageBlobBytes(), garbage_blob_bytes);
-
-  TestEncodeDecode(blob_file_garbage);
-}
-
-TEST_F(BlobFileGarbageTest, DecodeErrors) {
-  std::string str;
-  Slice slice(str);
-
-  BlobFileGarbage blob_file_garbage;
-
-  {
-    const Status s = blob_file_garbage.DecodeFrom(&slice);
-    ASSERT_TRUE(s.IsCorruption());
-    ASSERT_TRUE(std::strstr(s.getState(), "blob file number"));
-  }
-
-  constexpr uint64_t blob_file_number = 123;
-  PutVarint64(&str, blob_file_number);
-  slice = str;
-
-  {
-    const Status s = blob_file_garbage.DecodeFrom(&slice);
-    ASSERT_TRUE(s.IsCorruption());
-    ASSERT_TRUE(std::strstr(s.getState(), "garbage blob count"));
-  }
-
-  constexpr uint64_t garbage_blob_count = 4567;
-  PutVarint64(&str, garbage_blob_count);
-  slice = str;
-
-  {
-    const Status s = blob_file_garbage.DecodeFrom(&slice);
-    ASSERT_TRUE(s.IsCorruption());
-    ASSERT_TRUE(std::strstr(s.getState(), "garbage blob bytes"));
-  }
-
-  constexpr uint64_t garbage_blob_bytes = 12345678;
-  PutVarint64(&str, garbage_blob_bytes);
-  slice = str;
-
-  {
-    const Status s = blob_file_garbage.DecodeFrom(&slice);
-    ASSERT_TRUE(s.IsCorruption());
-    ASSERT_TRUE(std::strstr(s.getState(), "custom field tag"));
-  }
-
-  constexpr uint32_t custom_tag = 2;
-  PutVarint32(&str, custom_tag);
-  slice = str;
-
-  {
-    const Status s = blob_file_garbage.DecodeFrom(&slice);
-    ASSERT_TRUE(s.IsCorruption());
-    ASSERT_TRUE(std::strstr(s.getState(), "custom field value"));
-  }
-}
-
-TEST_F(BlobFileGarbageTest, ForwardCompatibleCustomField) {
-  SyncPoint::GetInstance()->SetCallBack(
-      "BlobFileGarbage::EncodeTo::CustomFields", [&](void* arg) {
-        std::string* output = static_cast<std::string*>(arg);
-
-        constexpr uint32_t forward_compatible_tag = 2;
-        PutVarint32(output, forward_compatible_tag);
-
-        PutLengthPrefixedSlice(output, "deadbeef");
-      });
-  SyncPoint::GetInstance()->EnableProcessing();
-
-  constexpr uint64_t blob_file_number = 678;
-  constexpr uint64_t garbage_blob_count = 9999;
-  constexpr uint64_t garbage_blob_bytes = 100000000;
-
-  BlobFileGarbage blob_file_garbage(blob_file_number, garbage_blob_count,
-                                    garbage_blob_bytes);
-
-  TestEncodeDecode(blob_file_garbage);
-
-  SyncPoint::GetInstance()->DisableProcessing();
-  SyncPoint::GetInstance()->ClearAllCallBacks();
-}
-
-TEST_F(BlobFileGarbageTest, ForwardIncompatibleCustomField) {
-  SyncPoint::GetInstance()->SetCallBack(
-      "BlobFileGarbage::EncodeTo::CustomFields", [&](void* arg) {
-        std::string* output = static_cast<std::string*>(arg);
-
-        constexpr uint32_t forward_incompatible_tag = (1 << 6) + 1;
-        PutVarint32(output, forward_incompatible_tag);
-
-        PutLengthPrefixedSlice(output, "foobar");
-      });
-  SyncPoint::GetInstance()->EnableProcessing();
-
-  constexpr uint64_t blob_file_number = 456;
-  constexpr uint64_t garbage_blob_count = 100;
-  constexpr uint64_t garbage_blob_bytes = 2000000;
-
-  BlobFileGarbage blob_file_garbage(blob_file_number, garbage_blob_count,
-                                    garbage_blob_bytes);
-
-  std::string encoded;
-  blob_file_garbage.EncodeTo(&encoded);
-
-  BlobFileGarbage decoded_blob_file_addition;
-  Slice input(encoded);
-  const Status s = decoded_blob_file_addition.DecodeFrom(&input);
-
-  ASSERT_TRUE(s.IsCorruption());
-  ASSERT_TRUE(std::strstr(s.getState(), "Forward incompatible"));
-
-  SyncPoint::GetInstance()->DisableProcessing();
-  SyncPoint::GetInstance()->ClearAllCallBacks();
-}
-
-}  // namespace ROCKSDB_NAMESPACE
-
-int main(int argc, char** argv) {
-  ::testing::InitGoogleTest(&argc, argv);
-  return RUN_ALL_TESTS();
-}
@@ -1,55 +0,0 @@
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
-//  This source code is licensed under both the GPLv2 (found in the
-//  COPYING file in the root directory) and Apache 2.0 License
-//  (found in the LICENSE.Apache file in the root directory).
-
-#include "db/blob/blob_file_meta.h"
-
-#include <ostream>
-#include <sstream>
-
-namespace ROCKSDB_NAMESPACE {
-
-std::string SharedBlobFileMetaData::DebugString() const {
-  std::ostringstream oss;
-  oss << (*this);
-
-  return oss.str();
-}
-
-std::ostream& operator<<(std::ostream& os,
-                         const SharedBlobFileMetaData& shared_meta) {
-  os << "blob_file_number: " << shared_meta.GetBlobFileNumber()
-     << " total_blob_count: " << shared_meta.GetTotalBlobCount()
-     << " total_blob_bytes: " << shared_meta.GetTotalBlobBytes()
-     << " checksum_method: " << shared_meta.GetChecksumMethod()
-     << " checksum_value: " << shared_meta.GetChecksumValue();
-
-  return os;
-}
-
-std::string BlobFileMetaData::DebugString() const {
-  std::ostringstream oss;
-  oss << (*this);
-
-  return oss.str();
-}
-
-std::ostream& operator<<(std::ostream& os, const BlobFileMetaData& meta) {
-  const auto& shared_meta = meta.GetSharedMeta();
-  assert(shared_meta);
-  os << (*shared_meta);
-
-  os << " linked_ssts: {";
-  for (uint64_t file_number : meta.GetLinkedSsts()) {
-    os << ' ' << file_number;
-  }
-  os << " }";
-
-  os << " garbage_blob_count: " << meta.GetGarbageBlobCount()
-     << " garbage_blob_bytes: " << meta.GetGarbageBlobBytes();
-
-  return os;
-}
-
-}  // namespace ROCKSDB_NAMESPACE
@@ -1,164 +0,0 @@
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
-//  This source code is licensed under both the GPLv2 (found in the
-//  COPYING file in the root directory) and Apache 2.0 License
-//  (found in the LICENSE.Apache file in the root directory).
-
-#pragma once
-
-#include <cassert>
-#include <iosfwd>
-#include <memory>
-#include <string>
-#include <unordered_set>
-
-#include "rocksdb/rocksdb_namespace.h"
-
-namespace ROCKSDB_NAMESPACE {
-
-// SharedBlobFileMetaData represents the immutable part of blob files' metadata,
-// like the blob file number, total number and size of blobs, or checksum
-// method and value. There is supposed to be one object of this class per blob
-// file (shared across all versions that include the blob file in question);
-// hence, the type is neither copyable nor movable. A blob file can be marked
-// obsolete when the corresponding SharedBlobFileMetaData object is destroyed.
-
-class SharedBlobFileMetaData {
- public:
-  static std::shared_ptr<SharedBlobFileMetaData> Create(
-      uint64_t blob_file_number, uint64_t total_blob_count,
-      uint64_t total_blob_bytes, std::string checksum_method,
-      std::string checksum_value) {
-    return std::shared_ptr<SharedBlobFileMetaData>(new SharedBlobFileMetaData(
-        blob_file_number, total_blob_count, total_blob_bytes,
-        std::move(checksum_method), std::move(checksum_value)));
-  }
-
-  template <typename Deleter>
-  static std::shared_ptr<SharedBlobFileMetaData> Create(
-      uint64_t blob_file_number, uint64_t total_blob_count,
-      uint64_t total_blob_bytes, std::string checksum_method,
-      std::string checksum_value, Deleter deleter) {
-    return std::shared_ptr<SharedBlobFileMetaData>(
-        new SharedBlobFileMetaData(blob_file_number, total_blob_count,
-                                   total_blob_bytes, std::move(checksum_method),
-                                   std::move(checksum_value)),
-        deleter);
-  }
-
-  SharedBlobFileMetaData(const SharedBlobFileMetaData&) = delete;
-  SharedBlobFileMetaData& operator=(const SharedBlobFileMetaData&) = delete;
-
-  SharedBlobFileMetaData(SharedBlobFileMetaData&&) = delete;
-  SharedBlobFileMetaData& operator=(SharedBlobFileMetaData&&) = delete;
-
-  uint64_t GetBlobFileNumber() const { return blob_file_number_; }
-  uint64_t GetTotalBlobCount() const { return total_blob_count_; }
-  uint64_t GetTotalBlobBytes() const { return total_blob_bytes_; }
-  const std::string& GetChecksumMethod() const { return checksum_method_; }
-  const std::string& GetChecksumValue() const { return checksum_value_; }
-
-  std::string DebugString() const;
-
- private:
-  SharedBlobFileMetaData(uint64_t blob_file_number, uint64_t total_blob_count,
-                         uint64_t total_blob_bytes, std::string checksum_method,
-                         std::string checksum_value)
-      : blob_file_number_(blob_file_number),
-        total_blob_count_(total_blob_count),
-        total_blob_bytes_(total_blob_bytes),
-        checksum_method_(std::move(checksum_method)),
-        checksum_value_(std::move(checksum_value)) {
-    assert(checksum_method_.empty() == checksum_value_.empty());
-  }
-
-  uint64_t blob_file_number_;
-  uint64_t total_blob_count_;
-  uint64_t total_blob_bytes_;
-  std::string checksum_method_;
-  std::string checksum_value_;
-};
-
-std::ostream& operator<<(std::ostream& os,
-                         const SharedBlobFileMetaData& shared_meta);
-
-// BlobFileMetaData contains the part of the metadata for blob files that can
-// vary across versions, like the amount of garbage in the blob file. In
-// addition, BlobFileMetaData objects point to and share the ownership of the
-// SharedBlobFileMetaData object for the corresponding blob file. Similarly to
-// SharedBlobFileMetaData, BlobFileMetaData are not copyable or movable. They
-// are meant to be jointly owned by the versions in which the blob file has the
-// same (immutable *and* mutable) state.
-
-class BlobFileMetaData {
- public:
-  using LinkedSsts = std::unordered_set<uint64_t>;
-
-  static std::shared_ptr<BlobFileMetaData> Create(
-      std::shared_ptr<SharedBlobFileMetaData> shared_meta,
-      LinkedSsts linked_ssts, uint64_t garbage_blob_count,
-      uint64_t garbage_blob_bytes) {
-    return std::shared_ptr<BlobFileMetaData>(
-        new BlobFileMetaData(std::move(shared_meta), std::move(linked_ssts),
-                             garbage_blob_count, garbage_blob_bytes));
-  }
-
-  BlobFileMetaData(const BlobFileMetaData&) = delete;
-  BlobFileMetaData& operator=(const BlobFileMetaData&) = delete;
-
-  BlobFileMetaData(BlobFileMetaData&&) = delete;
-  BlobFileMetaData& operator=(BlobFileMetaData&&) = delete;
-
-  const std::shared_ptr<SharedBlobFileMetaData>& GetSharedMeta() const {
-    return shared_meta_;
-  }
-
-  uint64_t GetBlobFileNumber() const {
-    assert(shared_meta_);
-    return shared_meta_->GetBlobFileNumber();
-  }
-  uint64_t GetTotalBlobCount() const {
-    assert(shared_meta_);
-    return shared_meta_->GetTotalBlobCount();
-  }
-  uint64_t GetTotalBlobBytes() const {
-    assert(shared_meta_);
-    return shared_meta_->GetTotalBlobBytes();
-  }
-  const std::string& GetChecksumMethod() const {
-    assert(shared_meta_);
-    return shared_meta_->GetChecksumMethod();
-  }
-  const std::string& GetChecksumValue() const {
-    assert(shared_meta_);
-    return shared_meta_->GetChecksumValue();
-  }
-
-  const LinkedSsts& GetLinkedSsts() const { return linked_ssts_; }
-
-  uint64_t GetGarbageBlobCount() const { return garbage_blob_count_; }
-  uint64_t GetGarbageBlobBytes() const { return garbage_blob_bytes_; }
-
-  std::string DebugString() const;
-
- private:
-  BlobFileMetaData(std::shared_ptr<SharedBlobFileMetaData> shared_meta,
-                   LinkedSsts linked_ssts, uint64_t garbage_blob_count,
-                   uint64_t garbage_blob_bytes)
-      : shared_meta_(std::move(shared_meta)),
-        linked_ssts_(std::move(linked_ssts)),
-        garbage_blob_count_(garbage_blob_count),
-        garbage_blob_bytes_(garbage_blob_bytes) {
-    assert(shared_meta_);
-    assert(garbage_blob_count_ <= shared_meta_->GetTotalBlobCount());
-    assert(garbage_blob_bytes_ <= shared_meta_->GetTotalBlobBytes());
-  }
-
-  std::shared_ptr<SharedBlobFileMetaData> shared_meta_;
-  LinkedSsts linked_ssts_;
-  uint64_t garbage_blob_count_;
-  uint64_t garbage_blob_bytes_;
-};
-
-std::ostream& operator<<(std::ostream& os, const BlobFileMetaData& meta);
-
-}  // namespace ROCKSDB_NAMESPACE
@@ -1,423 +0,0 @@
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
-//  This source code is licensed under both the GPLv2 (found in the
-//  COPYING file in the root directory) and Apache 2.0 License
-//  (found in the LICENSE.Apache file in the root directory).
-
-#include "db/blob/blob_file_reader.h"
-
-#include <cassert>
-#include <string>
-
-#include "db/blob/blob_log_format.h"
-#include "file/filename.h"
-#include "options/cf_options.h"
-#include "rocksdb/file_system.h"
-#include "rocksdb/slice.h"
-#include "rocksdb/status.h"
-#include "test_util/sync_point.h"
-#include "util/compression.h"
-#include "util/crc32c.h"
-
-namespace ROCKSDB_NAMESPACE {
-
-Status BlobFileReader::Create(
-    const ImmutableCFOptions& immutable_cf_options,
-    const FileOptions& file_options, uint32_t column_family_id,
-    HistogramImpl* blob_file_read_hist, uint64_t blob_file_number,
-    std::unique_ptr<BlobFileReader>* blob_file_reader) {
-  assert(blob_file_reader);
-  assert(!*blob_file_reader);
-
-  uint64_t file_size = 0;
-  std::unique_ptr<RandomAccessFileReader> file_reader;
-
-  {
-    const Status s =
-        OpenFile(immutable_cf_options, file_options, blob_file_read_hist,
-                 blob_file_number, &file_size, &file_reader);
-    if (!s.ok()) {
-      return s;
-    }
-  }
-
-  assert(file_reader);
-
-  CompressionType compression_type = kNoCompression;
-
-  {
-    const Status s =
-        ReadHeader(file_reader.get(), column_family_id, &compression_type);
-    if (!s.ok()) {
-      return s;
-    }
-  }
-
-  {
-    const Status s = ReadFooter(file_size, file_reader.get());
-    if (!s.ok()) {
-      return s;
-    }
-  }
-
-  blob_file_reader->reset(
-      new BlobFileReader(std::move(file_reader), file_size, compression_type));
-
-  return Status::OK();
-}
-
-Status BlobFileReader::OpenFile(
-    const ImmutableCFOptions& immutable_cf_options,
-    const FileOptions& file_opts, HistogramImpl* blob_file_read_hist,
-    uint64_t blob_file_number, uint64_t* file_size,
-    std::unique_ptr<RandomAccessFileReader>* file_reader) {
-  assert(file_size);
-  assert(file_reader);
-
-  const auto& cf_paths = immutable_cf_options.cf_paths;
-  assert(!cf_paths.empty());
-
-  const std::string blob_file_path =
-      BlobFileName(cf_paths.front().path, blob_file_number);
-
-  FileSystem* const fs = immutable_cf_options.fs;
-  assert(fs);
-
-  constexpr IODebugContext* dbg = nullptr;
-
-  {
-    TEST_SYNC_POINT("BlobFileReader::OpenFile:GetFileSize");
-
-    const Status s =
-        fs->GetFileSize(blob_file_path, IOOptions(), file_size, dbg);
-    if (!s.ok()) {
-      return s;
-    }
-  }
-
-  if (*file_size < BlobLogHeader::kSize + BlobLogFooter::kSize) {
-    return Status::Corruption("Malformed blob file");
-  }
-
-  std::unique_ptr<FSRandomAccessFile> file;
-
-  {
-    TEST_SYNC_POINT("BlobFileReader::OpenFile:NewRandomAccessFile");
-
-    const Status s =
-        fs->NewRandomAccessFile(blob_file_path, file_opts, &file, dbg);
-    if (!s.ok()) {
-      return s;
-    }
-  }
-
-  assert(file);
-
-  if (immutable_cf_options.advise_random_on_open) {
-    file->Hint(FSRandomAccessFile::kRandom);
-  }
-
-  file_reader->reset(new RandomAccessFileReader(
-      std::move(file), blob_file_path, immutable_cf_options.env,
-      std::shared_ptr<IOTracer>(), immutable_cf_options.statistics,
-      BLOB_DB_BLOB_FILE_READ_MICROS, blob_file_read_hist,
-      immutable_cf_options.rate_limiter, immutable_cf_options.listeners));
-
-  return Status::OK();
-}
-
-Status BlobFileReader::ReadHeader(const RandomAccessFileReader* file_reader,
-                                  uint32_t column_family_id,
-                                  CompressionType* compression_type) {
-  assert(file_reader);
-  assert(compression_type);
-
-  Slice header_slice;
-  Buffer buf;
-  AlignedBuf aligned_buf;
-
-  {
-    TEST_SYNC_POINT("BlobFileReader::ReadHeader:ReadFromFile");
-
-    constexpr uint64_t read_offset = 0;
-    constexpr size_t read_size = BlobLogHeader::kSize;
-
-    const Status s = ReadFromFile(file_reader, read_offset, read_size,
-                                  &header_slice, &buf, &aligned_buf);
-    if (!s.ok()) {
-      return s;
-    }
-
-    TEST_SYNC_POINT_CALLBACK("BlobFileReader::ReadHeader:TamperWithResult",
-                             &header_slice);
-  }
-
-  BlobLogHeader header;
-
-  {
-    const Status s = header.DecodeFrom(header_slice);
-    if (!s.ok()) {
-      return s;
-    }
-  }
-
-  constexpr ExpirationRange no_expiration_range;
-
-  if (header.has_ttl || header.expiration_range != no_expiration_range) {
-    return Status::Corruption("Unexpected TTL blob file");
-  }
-
-  if (header.column_family_id != column_family_id) {
-    return Status::Corruption("Column family ID mismatch");
-  }
-
-  *compression_type = header.compression;
-
-  return Status::OK();
-}
-
-Status BlobFileReader::ReadFooter(uint64_t file_size,
-                                  const RandomAccessFileReader* file_reader) {
-  assert(file_size >= BlobLogHeader::kSize + BlobLogFooter::kSize);
-  assert(file_reader);
-
-  Slice footer_slice;
-  Buffer buf;
-  AlignedBuf aligned_buf;
-
-  {
-    TEST_SYNC_POINT("BlobFileReader::ReadFooter:ReadFromFile");
-
-    const uint64_t read_offset = file_size - BlobLogFooter::kSize;
-    constexpr size_t read_size = BlobLogFooter::kSize;
-
-    const Status s = ReadFromFile(file_reader, read_offset, read_size,
-                                  &footer_slice, &buf, &aligned_buf);
-    if (!s.ok()) {
-      return s;
-    }
-
-    TEST_SYNC_POINT_CALLBACK("BlobFileReader::ReadFooter:TamperWithResult",
-                             &footer_slice);
-  }
-
-  BlobLogFooter footer;
-
-  {
-    const Status s = footer.DecodeFrom(footer_slice);
-    if (!s.ok()) {
-      return s;
-    }
-  }
-
-  constexpr ExpirationRange no_expiration_range;
-
-  if (footer.expiration_range != no_expiration_range) {
-    return Status::Corruption("Unexpected TTL blob file");
-  }
-
-  return Status::OK();
-}
-
-Status BlobFileReader::ReadFromFile(const RandomAccessFileReader* file_reader,
-                                    uint64_t read_offset, size_t read_size,
-                                    Slice* slice, Buffer* buf,
-                                    AlignedBuf* aligned_buf) {
-  assert(slice);
-  assert(buf);
-  assert(aligned_buf);
-
-  assert(file_reader);
-
-  Status s;
-
-  if (file_reader->use_direct_io()) {
-    constexpr char* scratch = nullptr;
-
-    s = file_reader->Read(IOOptions(), read_offset, read_size, slice, scratch,
-                          aligned_buf);
-  } else {
-    buf->reset(new char[read_size]);
-    constexpr AlignedBuf* aligned_scratch = nullptr;
-
-    s = file_reader->Read(IOOptions(), read_offset, read_size, slice,
-                          buf->get(), aligned_scratch);
-  }
-
-  if (!s.ok()) {
-    return s;
-  }
-
-  if (slice->size() != read_size) {
-    return Status::Corruption("Failed to read data from blob file");
-  }
-
-  return Status::OK();
-}
-
-BlobFileReader::BlobFileReader(
-    std::unique_ptr<RandomAccessFileReader>&& file_reader, uint64_t file_size,
-    CompressionType compression_type)
-    : file_reader_(std::move(file_reader)),
-      file_size_(file_size),
-      compression_type_(compression_type) {
-  assert(file_reader_);
-}
-
-BlobFileReader::~BlobFileReader() = default;
-
-Status BlobFileReader::GetBlob(const ReadOptions& read_options,
-                               const Slice& user_key, uint64_t offset,
-                               uint64_t value_size,
-                               CompressionType compression_type,
-                               PinnableSlice* value) const {
-  assert(value);
-
-  const uint64_t key_size = user_key.size();
-
-  if (!IsValidBlobOffset(offset, key_size, value_size, file_size_)) {
-    return Status::Corruption("Invalid blob offset");
-  }
-
-  if (compression_type != compression_type_) {
-    return Status::Corruption("Compression type mismatch when reading blob");
-  }
-
-  // Note: if verify_checksum is set, we read the entire blob record to be able
-  // to perform the verification; otherwise, we just read the blob itself. Since
-  // the offset in BlobIndex actually points to the blob value, we need to make
-  // an adjustment in the former case.
-  const uint64_t adjustment =
-      read_options.verify_checksums
-          ? BlobLogRecord::CalculateAdjustmentForRecordHeader(key_size)
-          : 0;
-  assert(offset >= adjustment);
-
-  Slice record_slice;
-  Buffer buf;
-  AlignedBuf aligned_buf;
-
-  {
-    TEST_SYNC_POINT("BlobFileReader::GetBlob:ReadFromFile");
-
-    const uint64_t record_offset = offset - adjustment;
-    const uint64_t record_size = value_size + adjustment;
-
-    const Status s = ReadFromFile(file_reader_.get(), record_offset,
-                                  static_cast<size_t>(record_size),
-                                  &record_slice, &buf, &aligned_buf);
-    if (!s.ok()) {
-      return s;
-    }
-
-    TEST_SYNC_POINT_CALLBACK("BlobFileReader::GetBlob:TamperWithResult",
-                             &record_slice);
-  }
-
-  if (read_options.verify_checksums) {
-    const Status s = VerifyBlob(record_slice, user_key, value_size);
-    if (!s.ok()) {
-      return s;
-    }
-  }
-
-  const Slice value_slice(record_slice.data() + adjustment, value_size);
-
-  {
-    const Status s =
-        UncompressBlobIfNeeded(value_slice, compression_type, value);
-    if (!s.ok()) {
-      return s;
-    }
-  }
-
-  return Status::OK();
-}
-
-Status BlobFileReader::VerifyBlob(const Slice& record_slice,
-                                  const Slice& user_key, uint64_t value_size) {
-  BlobLogRecord record;
-
-  const Slice header_slice(record_slice.data(), BlobLogRecord::kHeaderSize);
-
-  {
-    const Status s = record.DecodeHeaderFrom(header_slice);
-    if (!s.ok()) {
-      return s;
-    }
-  }
-
-  if (record.key_size != user_key.size()) {
-    return Status::Corruption("Key size mismatch when reading blob");
-  }
-
-  if (record.value_size != value_size) {
-    return Status::Corruption("Value size mismatch when reading blob");
-  }
-
-  record.key =
-      Slice(record_slice.data() + BlobLogRecord::kHeaderSize, record.key_size);
-  if (record.key != user_key) {
-    return Status::Corruption("Key mismatch when reading blob");
-  }
-
-  record.value = Slice(record.key.data() + record.key_size, value_size);
-
-  {
-    TEST_SYNC_POINT_CALLBACK("BlobFileReader::VerifyBlob:CheckBlobCRC",
-                             &record);
-
-    const Status s = record.CheckBlobCRC();
-    if (!s.ok()) {
-      return s;
-    }
-  }
-
-  return Status::OK();
-}
-
-Status BlobFileReader::UncompressBlobIfNeeded(const Slice& value_slice,
-                                              CompressionType compression_type,
-                                              PinnableSlice* value) {
-  assert(value);
-
-  if (compression_type == kNoCompression) {
-    SaveValue(value_slice, value);
-
-    return Status::OK();
-  }
-
-  UncompressionContext context(compression_type);
-  UncompressionInfo info(context, UncompressionDict::GetEmptyDict(),
-                         compression_type);
-
-  size_t uncompressed_size = 0;
-  constexpr uint32_t compression_format_version = 2;
-  constexpr MemoryAllocator* allocator = nullptr;
-
-  CacheAllocationPtr output =
-      UncompressData(info, value_slice.data(), value_slice.size(),
-                     &uncompressed_size, compression_format_version, allocator);
-
-  TEST_SYNC_POINT_CALLBACK(
-      "BlobFileReader::UncompressBlobIfNeeded:TamperWithResult", &output);
-
-  if (!output) {
-    return Status::Corruption("Unable to uncompress blob");
-  }
-
-  SaveValue(Slice(output.get(), uncompressed_size), value);
-
-  return Status::OK();
-}
-
-void BlobFileReader::SaveValue(const Slice& src, PinnableSlice* dst) {
-  assert(dst);
-
-  if (dst->IsPinned()) {
-    dst->Reset();
-  }
-
-  dst->PinSelf(src);
-}
-
-}  // namespace ROCKSDB_NAMESPACE
@@ -1,81 +0,0 @@
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
-//  This source code is licensed under both the GPLv2 (found in the
-//  COPYING file in the root directory) and Apache 2.0 License
-//  (found in the LICENSE.Apache file in the root directory).
-
-#pragma once
-
-#include <cinttypes>
-#include <memory>
-
-#include "file/random_access_file_reader.h"
-#include "rocksdb/compression_type.h"
-#include "rocksdb/rocksdb_namespace.h"
-
-namespace ROCKSDB_NAMESPACE {
-
-class Status;
-struct ImmutableCFOptions;
-struct FileOptions;
-class HistogramImpl;
-struct ReadOptions;
-class Slice;
-class PinnableSlice;
-
-class BlobFileReader {
- public:
-  static Status Create(const ImmutableCFOptions& immutable_cf_options,
-                       const FileOptions& file_options,
-                       uint32_t column_family_id,
-                       HistogramImpl* blob_file_read_hist,
-                       uint64_t blob_file_number,
-                       std::unique_ptr<BlobFileReader>* reader);
-
-  BlobFileReader(const BlobFileReader&) = delete;
-  BlobFileReader& operator=(const BlobFileReader&) = delete;
-
-  ~BlobFileReader();
-
-  Status GetBlob(const ReadOptions& read_options, const Slice& user_key,
-                 uint64_t offset, uint64_t value_size,
-                 CompressionType compression_type, PinnableSlice* value) const;
-
- private:
-  BlobFileReader(std::unique_ptr<RandomAccessFileReader>&& file_reader,
-                 uint64_t file_size, CompressionType compression_type);
-
-  static Status OpenFile(const ImmutableCFOptions& immutable_cf_options,
-                         const FileOptions& file_opts,
-                         HistogramImpl* blob_file_read_hist,
-                         uint64_t blob_file_number, uint64_t* file_size,
-                         std::unique_ptr<RandomAccessFileReader>* file_reader);
-
-  static Status ReadHeader(const RandomAccessFileReader* file_reader,
-                           uint32_t column_family_id,
-                           CompressionType* compression_type);
-
-  static Status ReadFooter(uint64_t file_size,
-                           const RandomAccessFileReader* file_reader);
-
-  using Buffer = std::unique_ptr<char[]>;
-
-  static Status ReadFromFile(const RandomAccessFileReader* file_reader,
-                             uint64_t read_offset, size_t read_size,
-                             Slice* slice, Buffer* buf,
-                             AlignedBuf* aligned_buf);
-
-  static Status VerifyBlob(const Slice& record_slice, const Slice& user_key,
-                           uint64_t value_size);
-
-  static Status UncompressBlobIfNeeded(const Slice& value_slice,
-                                       CompressionType compression_type,
-                                       PinnableSlice* value);
-
-  static void SaveValue(const Slice& src, PinnableSlice* dst);
-
-  std::unique_ptr<RandomAccessFileReader> file_reader_;
-  uint64_t file_size_;
-  CompressionType compression_type_;
-};
-
-}  // namespace ROCKSDB_NAMESPACE
@@ -1,770 +0,0 @@
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
-//  This source code is licensed under both the GPLv2 (found in the
-//  COPYING file in the root directory) and Apache 2.0 License
-//  (found in the LICENSE.Apache file in the root directory).
-
-#include "db/blob/blob_file_reader.h"
-
-#include <cassert>
-#include <string>
-
-#include "db/blob/blob_log_format.h"
-#include "db/blob/blob_log_writer.h"
-#include "env/mock_env.h"
-#include "file/filename.h"
-#include "file/read_write_util.h"
-#include "file/writable_file_writer.h"
-#include "options/cf_options.h"
-#include "rocksdb/env.h"
-#include "rocksdb/file_system.h"
-#include "rocksdb/options.h"
-#include "test_util/testharness.h"
-#include "util/compression.h"
-#include "utilities/fault_injection_env.h"
-
-namespace ROCKSDB_NAMESPACE {
-
-namespace {
-
-// Creates a test blob file with a single blob in it. Note: this method
-// makes it possible to test various corner cases by allowing the caller
-// to specify the contents of various blob file header/footer fields.
-void WriteBlobFile(const ImmutableCFOptions& immutable_cf_options,
-                   uint32_t column_family_id, bool has_ttl,
-                   const ExpirationRange& expiration_range_header,
-                   const ExpirationRange& expiration_range_footer,
-                   uint64_t blob_file_number, const Slice& key,
-                   const Slice& blob, CompressionType compression_type,
-                   uint64_t* blob_offset, uint64_t* blob_size) {
-  assert(!immutable_cf_options.cf_paths.empty());
-  assert(blob_offset);
-  assert(blob_size);
-
-  const std::string blob_file_path = BlobFileName(
-      immutable_cf_options.cf_paths.front().path, blob_file_number);
-
-  std::unique_ptr<FSWritableFile> file;
-  ASSERT_OK(NewWritableFile(immutable_cf_options.fs, blob_file_path, &file,
-                            FileOptions()));
-
-  std::unique_ptr<WritableFileWriter> file_writer(
-      new WritableFileWriter(std::move(file), blob_file_path, FileOptions(),
-                             immutable_cf_options.env));
-
-  constexpr Statistics* statistics = nullptr;
-  constexpr bool use_fsync = false;
-
-  BlobLogWriter blob_log_writer(std::move(file_writer),
-                                immutable_cf_options.env, statistics,
-                                blob_file_number, use_fsync);
-
-  BlobLogHeader header(column_family_id, compression_type, has_ttl,
-                       expiration_range_header);
-
-  ASSERT_OK(blob_log_writer.WriteHeader(header));
-
-  std::string compressed_blob;
-  Slice blob_to_write;
-
-  if (compression_type == kNoCompression) {
-    blob_to_write = blob;
-    *blob_size = blob.size();
-  } else {
-    CompressionOptions opts;
-    CompressionContext context(compression_type);
-    constexpr uint64_t sample_for_compression = 0;
-
-    CompressionInfo info(opts, context, CompressionDict::GetEmptyDict(),
-                         compression_type, sample_for_compression);
-
-    constexpr uint32_t compression_format_version = 2;
-
-    ASSERT_TRUE(
-        CompressData(blob, info, compression_format_version, &compressed_blob));
-
-    blob_to_write = compressed_blob;
-    *blob_size = compressed_blob.size();
-  }
-
-  uint64_t key_offset = 0;
-
-  ASSERT_OK(
-      blob_log_writer.AddRecord(key, blob_to_write, &key_offset, blob_offset));
-
-  BlobLogFooter footer;
-  footer.blob_count = 1;
-  footer.expiration_range = expiration_range_footer;
-
-  std::string checksum_method;
-  std::string checksum_value;
-
-  ASSERT_OK(
-      blob_log_writer.AppendFooter(footer, &checksum_method, &checksum_value));
-}
-
-}  // anonymous namespace
-
-class BlobFileReaderTest : public testing::Test {
- protected:
-  BlobFileReaderTest() : mock_env_(Env::Default()) {}
-
-  MockEnv mock_env_;
-};
-
-TEST_F(BlobFileReaderTest, CreateReaderAndGetBlob) {
-  Options options;
-  options.env = &mock_env_;
-  options.cf_paths.emplace_back(
-      test::PerThreadDBPath(&mock_env_,
-                            "BlobFileReaderTest_CreateReaderAndGetBlob"),
-      0);
-  options.enable_blob_files = true;
-
-  ImmutableCFOptions immutable_cf_options(options);
-
-  constexpr uint32_t column_family_id = 1;
-  constexpr bool has_ttl = false;
-  constexpr ExpirationRange expiration_range;
-  constexpr uint64_t blob_file_number = 1;
-  constexpr char key[] = "key";
-  constexpr char blob[] = "blob";
-
-  uint64_t blob_offset = 0;
-  uint64_t blob_size = 0;
-
-  WriteBlobFile(immutable_cf_options, column_family_id, has_ttl,
-                expiration_range, expiration_range, blob_file_number, key, blob,
-                kNoCompression, &blob_offset, &blob_size);
-
-  constexpr HistogramImpl* blob_file_read_hist = nullptr;
-
-  std::unique_ptr<BlobFileReader> reader;
-
-  ASSERT_OK(BlobFileReader::Create(immutable_cf_options, FileOptions(),
-                                   column_family_id, blob_file_read_hist,
-                                   blob_file_number, &reader));
-
-  // Make sure the blob can be retrieved with and without checksum verification
-  ReadOptions read_options;
-  read_options.verify_checksums = false;
-
-  {
-    PinnableSlice value;
-
-    ASSERT_OK(reader->GetBlob(read_options, key, blob_offset, blob_size,
-                              kNoCompression, &value));
-    ASSERT_EQ(value, blob);
-  }
-
-  read_options.verify_checksums = true;
-
-  {
-    PinnableSlice value;
-
-    ASSERT_OK(reader->GetBlob(read_options, key, blob_offset, blob_size,
-                              kNoCompression, &value));
-    ASSERT_EQ(value, blob);
-  }
-
-  // Invalid offset (too close to start of file)
-  {
-    PinnableSlice value;
-
-    ASSERT_TRUE(reader
-                    ->GetBlob(read_options, key, blob_offset - 1, blob_size,
-                              kNoCompression, &value)
-                    .IsCorruption());
-  }
-
-  // Invalid offset (too close to end of file)
-  {
-    PinnableSlice value;
-
-    ASSERT_TRUE(reader
-                    ->GetBlob(read_options, key, blob_offset + 1, blob_size,
-                              kNoCompression, &value)
-                    .IsCorruption());
-  }
-
-  // Incorrect compression type
-  {
-    PinnableSlice value;
-
-    ASSERT_TRUE(
-        reader
-            ->GetBlob(read_options, key, blob_offset, blob_size, kZSTD, &value)
-            .IsCorruption());
-  }
-
-  // Incorrect key size
-  {
-    constexpr char shorter_key[] = "k";
-    PinnableSlice value;
-
-    ASSERT_TRUE(reader
-                    ->GetBlob(read_options, shorter_key,
-                              blob_offset - (sizeof(key) - sizeof(shorter_key)),
-                              blob_size, kNoCompression, &value)
-                    .IsCorruption());
-  }
-
-  // Incorrect key
-  {
-    constexpr char incorrect_key[] = "foo";
-    PinnableSlice value;
-
-    ASSERT_TRUE(reader
-                    ->GetBlob(read_options, incorrect_key, blob_offset,
-                              blob_size, kNoCompression, &value)
-                    .IsCorruption());
-  }
-
-  // Incorrect value size
-  {
-    PinnableSlice value;
-
-    ASSERT_TRUE(reader
-                    ->GetBlob(read_options, key, blob_offset, blob_size + 1,
-                              kNoCompression, &value)
-                    .IsCorruption());
-  }
-}
-
-TEST_F(BlobFileReaderTest, Malformed) {
-  // Write a blob file consisting of nothing but a header, and make sure we
-  // detect the error when we open it for reading
-
-  Options options;
-  options.env = &mock_env_;
-  options.cf_paths.emplace_back(
-      test::PerThreadDBPath(&mock_env_, "BlobFileReaderTest_Malformed"), 0);
-  options.enable_blob_files = true;
-
-  ImmutableCFOptions immutable_cf_options(options);
-
-  constexpr uint32_t column_family_id = 1;
-  constexpr uint64_t blob_file_number = 1;
-
-  {
-    constexpr bool has_ttl = false;
-    constexpr ExpirationRange expiration_range;
-
-    const std::string blob_file_path = BlobFileName(
-        immutable_cf_options.cf_paths.front().path, blob_file_number);
-
-    std::unique_ptr<FSWritableFile> file;
-    ASSERT_OK(NewWritableFile(immutable_cf_options.fs, blob_file_path, &file,
-                              FileOptions()));
-
-    std::unique_ptr<WritableFileWriter> file_writer(
-        new WritableFileWriter(std::move(file), blob_file_path, FileOptions(),
-                               immutable_cf_options.env));
-
-    constexpr Statistics* statistics = nullptr;
-    constexpr bool use_fsync = false;
-
-    BlobLogWriter blob_log_writer(std::move(file_writer),
-                                  immutable_cf_options.env, statistics,
-                                  blob_file_number, use_fsync);
-
-    BlobLogHeader header(column_family_id, kNoCompression, has_ttl,
-                         expiration_range);
-
-    ASSERT_OK(blob_log_writer.WriteHeader(header));
-  }
-
-  constexpr HistogramImpl* blob_file_read_hist = nullptr;
-
-  std::unique_ptr<BlobFileReader> reader;
-
-  ASSERT_TRUE(BlobFileReader::Create(immutable_cf_options, FileOptions(),
-                                     column_family_id, blob_file_read_hist,
-                                     blob_file_number, &reader)
-                  .IsCorruption());
-}
-
-TEST_F(BlobFileReaderTest, TTL) {
-  Options options;
-  options.env = &mock_env_;
-  options.cf_paths.emplace_back(
-      test::PerThreadDBPath(&mock_env_, "BlobFileReaderTest_TTL"), 0);
-  options.enable_blob_files = true;
-
-  ImmutableCFOptions immutable_cf_options(options);
-
-  constexpr uint32_t column_family_id = 1;
-  constexpr bool has_ttl = true;
-  constexpr ExpirationRange expiration_range;
-  constexpr uint64_t blob_file_number = 1;
-  constexpr char key[] = "key";
-  constexpr char blob[] = "blob";
-
-  uint64_t blob_offset = 0;
-  uint64_t blob_size = 0;
-
-  WriteBlobFile(immutable_cf_options, column_family_id, has_ttl,
-                expiration_range, expiration_range, blob_file_number, key, blob,
-                kNoCompression, &blob_offset, &blob_size);
-
-  constexpr HistogramImpl* blob_file_read_hist = nullptr;
-
-  std::unique_ptr<BlobFileReader> reader;
-
-  ASSERT_TRUE(BlobFileReader::Create(immutable_cf_options, FileOptions(),
-                                     column_family_id, blob_file_read_hist,
-                                     blob_file_number, &reader)
-                  .IsCorruption());
-}
-
-TEST_F(BlobFileReaderTest, ExpirationRangeInHeader) {
-  Options options;
-  options.env = &mock_env_;
-  options.cf_paths.emplace_back(
-      test::PerThreadDBPath(&mock_env_,
-                            "BlobFileReaderTest_ExpirationRangeInHeader"),
-      0);
-  options.enable_blob_files = true;
-
-  ImmutableCFOptions immutable_cf_options(options);
-
-  constexpr uint32_t column_family_id = 1;
-  constexpr bool has_ttl = false;
-  const ExpirationRange expiration_range_header(
-      1, 2);  // can be made constexpr when we adopt C++14
-  constexpr ExpirationRange expiration_range_footer;
-  constexpr uint64_t blob_file_number = 1;
-  constexpr char key[] = "key";
-  constexpr char blob[] = "blob";
-
-  uint64_t blob_offset = 0;
-  uint64_t blob_size = 0;
-
-  WriteBlobFile(immutable_cf_options, column_family_id, has_ttl,
-                expiration_range_header, expiration_range_footer,
-                blob_file_number, key, blob, kNoCompression, &blob_offset,
-                &blob_size);
-
-  constexpr HistogramImpl* blob_file_read_hist = nullptr;
-
-  std::unique_ptr<BlobFileReader> reader;
-
-  ASSERT_TRUE(BlobFileReader::Create(immutable_cf_options, FileOptions(),
-                                     column_family_id, blob_file_read_hist,
-                                     blob_file_number, &reader)
-                  .IsCorruption());
-}
-
-TEST_F(BlobFileReaderTest, ExpirationRangeInFooter) {
-  Options options;
-  options.env = &mock_env_;
-  options.cf_paths.emplace_back(
-      test::PerThreadDBPath(&mock_env_,
-                            "BlobFileReaderTest_ExpirationRangeInFooter"),
-      0);
-  options.enable_blob_files = true;
-
-  ImmutableCFOptions immutable_cf_options(options);
-
-  constexpr uint32_t column_family_id = 1;
-  constexpr bool has_ttl = false;
-  constexpr ExpirationRange expiration_range_header;
-  const ExpirationRange expiration_range_footer(
-      1, 2);  // can be made constexpr when we adopt C++14
-  constexpr uint64_t blob_file_number = 1;
-  constexpr char key[] = "key";
-  constexpr char blob[] = "blob";
-
-  uint64_t blob_offset = 0;
-  uint64_t blob_size = 0;
-
-  WriteBlobFile(immutable_cf_options, column_family_id, has_ttl,
-                expiration_range_header, expiration_range_footer,
-                blob_file_number, key, blob, kNoCompression, &blob_offset,
-                &blob_size);
-
-  constexpr HistogramImpl* blob_file_read_hist = nullptr;
-
-  std::unique_ptr<BlobFileReader> reader;
-
-  ASSERT_TRUE(BlobFileReader::Create(immutable_cf_options, FileOptions(),
-                                     column_family_id, blob_file_read_hist,
-                                     blob_file_number, &reader)
-                  .IsCorruption());
-}
-
-TEST_F(BlobFileReaderTest, IncorrectColumnFamily) {
-  Options options;
-  options.env = &mock_env_;
-  options.cf_paths.emplace_back(
-      test::PerThreadDBPath(&mock_env_,
-                            "BlobFileReaderTest_IncorrectColumnFamily"),
-      0);
-  options.enable_blob_files = true;
-
-  ImmutableCFOptions immutable_cf_options(options);
-
-  constexpr uint32_t column_family_id = 1;
-  constexpr bool has_ttl = false;
-  constexpr ExpirationRange expiration_range;
-  constexpr uint64_t blob_file_number = 1;
-  constexpr char key[] = "key";
-  constexpr char blob[] = "blob";
-
-  uint64_t blob_offset = 0;
-  uint64_t blob_size = 0;
-
-  WriteBlobFile(immutable_cf_options, column_family_id, has_ttl,
-                expiration_range, expiration_range, blob_file_number, key, blob,
-                kNoCompression, &blob_offset, &blob_size);
-
-  constexpr HistogramImpl* blob_file_read_hist = nullptr;
-
-  std::unique_ptr<BlobFileReader> reader;
-
-  constexpr uint32_t incorrect_column_family_id = 2;
-
-  ASSERT_TRUE(BlobFileReader::Create(immutable_cf_options, FileOptions(),
-                                     incorrect_column_family_id,
-                                     blob_file_read_hist, blob_file_number,
-                                     &reader)
-                  .IsCorruption());
-}
-
-TEST_F(BlobFileReaderTest, BlobCRCError) {
-  Options options;
-  options.env = &mock_env_;
-  options.cf_paths.emplace_back(
-      test::PerThreadDBPath(&mock_env_, "BlobFileReaderTest_BlobCRCError"), 0);
-  options.enable_blob_files = true;
-
-  ImmutableCFOptions immutable_cf_options(options);
-
-  constexpr uint32_t column_family_id = 1;
-  constexpr bool has_ttl = false;
-  constexpr ExpirationRange expiration_range;
-  constexpr uint64_t blob_file_number = 1;
-  constexpr char key[] = "key";
-  constexpr char blob[] = "blob";
-
-  uint64_t blob_offset = 0;
-  uint64_t blob_size = 0;
-
-  WriteBlobFile(immutable_cf_options, column_family_id, has_ttl,
-                expiration_range, expiration_range, blob_file_number, key, blob,
-                kNoCompression, &blob_offset, &blob_size);
-
-  constexpr HistogramImpl* blob_file_read_hist = nullptr;
-
-  std::unique_ptr<BlobFileReader> reader;
-
-  ASSERT_OK(BlobFileReader::Create(immutable_cf_options, FileOptions(),
-                                   column_family_id, blob_file_read_hist,
-                                   blob_file_number, &reader));
-
-  SyncPoint::GetInstance()->SetCallBack(
-      "BlobFileReader::VerifyBlob:CheckBlobCRC", [](void* arg) {
-        BlobLogRecord* const record = static_cast<BlobLogRecord*>(arg);
-        assert(record);
-
-        record->blob_crc = 0xfaceb00c;
-      });
-
-  SyncPoint::GetInstance()->EnableProcessing();
-
-  PinnableSlice value;
-
-  ASSERT_TRUE(reader
-                  ->GetBlob(ReadOptions(), key, blob_offset, blob_size,
-                            kNoCompression, &value)
-                  .IsCorruption());
-
-  SyncPoint::GetInstance()->DisableProcessing();
-  SyncPoint::GetInstance()->ClearAllCallBacks();
-}
-
-TEST_F(BlobFileReaderTest, Compression) {
-  if (!Snappy_Supported()) {
-    return;
-  }
-
-  Options options;
-  options.env = &mock_env_;
-  options.cf_paths.emplace_back(
-      test::PerThreadDBPath(&mock_env_, "BlobFileReaderTest_Compression"), 0);
-  options.enable_blob_files = true;
-
-  ImmutableCFOptions immutable_cf_options(options);
-
-  constexpr uint32_t column_family_id = 1;
-  constexpr bool has_ttl = false;
-  constexpr ExpirationRange expiration_range;
-  constexpr uint64_t blob_file_number = 1;
-  constexpr char key[] = "key";
-  constexpr char blob[] = "blob";
-
-  uint64_t blob_offset = 0;
-  uint64_t blob_size = 0;
-
-  WriteBlobFile(immutable_cf_options, column_family_id, has_ttl,
-                expiration_range, expiration_range, blob_file_number, key, blob,
-                kSnappyCompression, &blob_offset, &blob_size);
-
-  constexpr HistogramImpl* blob_file_read_hist = nullptr;
-
-  std::unique_ptr<BlobFileReader> reader;
-
-  ASSERT_OK(BlobFileReader::Create(immutable_cf_options, FileOptions(),
-                                   column_family_id, blob_file_read_hist,
-                                   blob_file_number, &reader));
-
-  // Make sure the blob can be retrieved with and without checksum verification
-  ReadOptions read_options;
-  read_options.verify_checksums = false;
-
-  {
-    PinnableSlice value;
-
-    ASSERT_OK(reader->GetBlob(read_options, key, blob_offset, blob_size,
-                              kSnappyCompression, &value));
-    ASSERT_EQ(value, blob);
-  }
-
-  read_options.verify_checksums = true;
-
-  {
-    PinnableSlice value;
-
-    ASSERT_OK(reader->GetBlob(read_options, key, blob_offset, blob_size,
-                              kSnappyCompression, &value));
-    ASSERT_EQ(value, blob);
-  }
-}
-
-TEST_F(BlobFileReaderTest, UncompressionError) {
-  if (!Snappy_Supported()) {
-    return;
-  }
-
-  Options options;
-  options.env = &mock_env_;
-  options.cf_paths.emplace_back(
-      test::PerThreadDBPath(&mock_env_,
-                            "BlobFileReaderTest_UncompressionError"),
-      0);
-  options.enable_blob_files = true;
-
-  ImmutableCFOptions immutable_cf_options(options);
-
-  constexpr uint32_t column_family_id = 1;
-  constexpr bool has_ttl = false;
-  constexpr ExpirationRange expiration_range;
-  constexpr uint64_t blob_file_number = 1;
-  constexpr char key[] = "key";
-  constexpr char blob[] = "blob";
-
-  uint64_t blob_offset = 0;
-  uint64_t blob_size = 0;
-
-  WriteBlobFile(immutable_cf_options, column_family_id, has_ttl,
-                expiration_range, expiration_range, blob_file_number, key, blob,
-                kSnappyCompression, &blob_offset, &blob_size);
-
-  constexpr HistogramImpl* blob_file_read_hist = nullptr;
-
-  std::unique_ptr<BlobFileReader> reader;
-
-  ASSERT_OK(BlobFileReader::Create(immutable_cf_options, FileOptions(),
-                                   column_family_id, blob_file_read_hist,
-                                   blob_file_number, &reader));
-
-  SyncPoint::GetInstance()->SetCallBack(
-      "BlobFileReader::UncompressBlobIfNeeded:TamperWithResult", [](void* arg) {
-        CacheAllocationPtr* const output =
-            static_cast<CacheAllocationPtr*>(arg);
-        assert(output);
-
-        output->reset();
-      });
-
-  SyncPoint::GetInstance()->EnableProcessing();
-
-  PinnableSlice value;
-
-  ASSERT_TRUE(reader
-                  ->GetBlob(ReadOptions(), key, blob_offset, blob_size,
-                            kSnappyCompression, &value)
-                  .IsCorruption());
-
-  SyncPoint::GetInstance()->DisableProcessing();
-  SyncPoint::GetInstance()->ClearAllCallBacks();
-}
-
-class BlobFileReaderIOErrorTest
-    : public testing::Test,
-      public testing::WithParamInterface<std::string> {
- protected:
-  BlobFileReaderIOErrorTest()
-      : mock_env_(Env::Default()),
-        fault_injection_env_(&mock_env_),
-        sync_point_(GetParam()) {}
-
-  MockEnv mock_env_;
-  FaultInjectionTestEnv fault_injection_env_;
-  std::string sync_point_;
-};
-
-INSTANTIATE_TEST_CASE_P(BlobFileReaderTest, BlobFileReaderIOErrorTest,
-                        ::testing::ValuesIn(std::vector<std::string>{
-                            "BlobFileReader::OpenFile:GetFileSize",
-                            "BlobFileReader::OpenFile:NewRandomAccessFile",
-                            "BlobFileReader::ReadHeader:ReadFromFile",
-                            "BlobFileReader::ReadFooter:ReadFromFile",
-                            "BlobFileReader::GetBlob:ReadFromFile"}));
-
-TEST_P(BlobFileReaderIOErrorTest, IOError) {
-  // Simulates an I/O error during the specified step
-
-  Options options;
-  options.env = &fault_injection_env_;
-  options.cf_paths.emplace_back(
-      test::PerThreadDBPath(&fault_injection_env_,
-                            "BlobFileReaderIOErrorTest_IOError"),
-      0);
-  options.enable_blob_files = true;
-
-  ImmutableCFOptions immutable_cf_options(options);
-
-  constexpr uint32_t column_family_id = 1;
-  constexpr bool has_ttl = false;
-  constexpr ExpirationRange expiration_range;
-  constexpr uint64_t blob_file_number = 1;
-  constexpr char key[] = "key";
-  constexpr char blob[] = "blob";
-
-  uint64_t blob_offset = 0;
-  uint64_t blob_size = 0;
-
-  WriteBlobFile(immutable_cf_options, column_family_id, has_ttl,
-                expiration_range, expiration_range, blob_file_number, key, blob,
-                kNoCompression, &blob_offset, &blob_size);
-
-  SyncPoint::GetInstance()->SetCallBack(sync_point_, [this](void* /* arg */) {
-    fault_injection_env_.SetFilesystemActive(false,
-                                             Status::IOError(sync_point_));
-  });
-  SyncPoint::GetInstance()->EnableProcessing();
-
-  constexpr HistogramImpl* blob_file_read_hist = nullptr;
-
-  std::unique_ptr<BlobFileReader> reader;
-
-  const Status s = BlobFileReader::Create(immutable_cf_options, FileOptions(),
-                                          column_family_id, blob_file_read_hist,
-                                          blob_file_number, &reader);
-
-  const bool fail_during_create =
-      (sync_point_ != "BlobFileReader::GetBlob:ReadFromFile");
-
-  if (fail_during_create) {
-    ASSERT_TRUE(s.IsIOError());
-  } else {
-    ASSERT_OK(s);
-
-    PinnableSlice value;
-
-    ASSERT_TRUE(reader
-                    ->GetBlob(ReadOptions(), key, blob_offset, blob_size,
-                              kNoCompression, &value)
-                    .IsIOError());
-  }
-
-  SyncPoint::GetInstance()->DisableProcessing();
-  SyncPoint::GetInstance()->ClearAllCallBacks();
-}
-
-class BlobFileReaderDecodingErrorTest
-    : public testing::Test,
-      public testing::WithParamInterface<std::string> {
- protected:
-  BlobFileReaderDecodingErrorTest()
-      : mock_env_(Env::Default()), sync_point_(GetParam()) {}
-
-  MockEnv mock_env_;
-  std::string sync_point_;
-};
-
-INSTANTIATE_TEST_CASE_P(BlobFileReaderTest, BlobFileReaderDecodingErrorTest,
-                        ::testing::ValuesIn(std::vector<std::string>{
-                            "BlobFileReader::ReadHeader:TamperWithResult",
-                            "BlobFileReader::ReadFooter:TamperWithResult",
-                            "BlobFileReader::GetBlob:TamperWithResult"}));
-
-TEST_P(BlobFileReaderDecodingErrorTest, DecodingError) {
-  Options options;
-  options.env = &mock_env_;
-  options.cf_paths.emplace_back(
-      test::PerThreadDBPath(&mock_env_,
-                            "BlobFileReaderDecodingErrorTest_DecodingError"),
-      0);
-  options.enable_blob_files = true;
-
-  ImmutableCFOptions immutable_cf_options(options);
-
-  constexpr uint32_t column_family_id = 1;
-  constexpr bool has_ttl = false;
-  constexpr ExpirationRange expiration_range;
-  constexpr uint64_t blob_file_number = 1;
-  constexpr char key[] = "key";
-  constexpr char blob[] = "blob";
-
-  uint64_t blob_offset = 0;
-  uint64_t blob_size = 0;
-
-  WriteBlobFile(immutable_cf_options, column_family_id, has_ttl,
-                expiration_range, expiration_range, blob_file_number, key, blob,
-                kNoCompression, &blob_offset, &blob_size);
-
-  SyncPoint::GetInstance()->SetCallBack(sync_point_, [](void* arg) {
-    Slice* const slice = static_cast<Slice*>(arg);
-    assert(slice);
-    assert(!slice->empty());
-
-    slice->remove_prefix(1);
-  });
-
-  SyncPoint::GetInstance()->EnableProcessing();
-
-  constexpr HistogramImpl* blob_file_read_hist = nullptr;
-
-  std::unique_ptr<BlobFileReader> reader;
-
-  const Status s = BlobFileReader::Create(immutable_cf_options, FileOptions(),
-                                          column_family_id, blob_file_read_hist,
-                                          blob_file_number, &reader);
-
-  const bool fail_during_create =
-      sync_point_ != "BlobFileReader::GetBlob:TamperWithResult";
-
-  if (fail_during_create) {
-    ASSERT_TRUE(s.IsCorruption());
-  } else {
-    ASSERT_OK(s);
-
-    PinnableSlice value;
-
-    ASSERT_TRUE(reader
-                    ->GetBlob(ReadOptions(), key, blob_offset, blob_size,
-                              kNoCompression, &value)
-                    .IsCorruption());
-  }
-
-  SyncPoint::GetInstance()->DisableProcessing();
-  SyncPoint::GetInstance()->ClearAllCallBacks();
-}
-
-}  // namespace ROCKSDB_NAMESPACE
-
-int main(int argc, char** argv) {
-  ::testing::InitGoogleTest(&argc, argv);
-  return RUN_ALL_TESTS();
-}
@@ -1,76 +0,0 @@
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
-//  This source code is licensed under both the GPLv2 (found in the
-//  COPYING file in the root directory) and Apache 2.0 License
-//  (found in the LICENSE.Apache file in the root directory).
-//
-#pragma once
-
-#include <memory>
-
-#include "db/blob/blob_log_format.h"
-#include "rocksdb/slice.h"
-
-namespace ROCKSDB_NAMESPACE {
-
-class RandomAccessFileReader;
-class Env;
-class Statistics;
-class Status;
-
-/**
- * BlobLogSequentialReader is a general purpose log stream reader
- * implementation. The actual job of reading from the device is implemented by
- * the RandomAccessFileReader interface.
- *
- * Please see BlobLogWriter for details on the file and record layout.
- */
-
-class BlobLogSequentialReader {
- public:
-  enum ReadLevel {
-    kReadHeader,
-    kReadHeaderKey,
-    kReadHeaderKeyBlob,
-  };
-
-  // Create a reader that will return log records from "*file_reader".
-  BlobLogSequentialReader(std::unique_ptr<RandomAccessFileReader>&& file_reader,
-                          Env* env, Statistics* statistics);
-
-  // No copying allowed
-  BlobLogSequentialReader(const BlobLogSequentialReader&) = delete;
-  BlobLogSequentialReader& operator=(const BlobLogSequentialReader&) = delete;
-
-  ~BlobLogSequentialReader();
-
-  Status ReadHeader(BlobLogHeader* header);
-
-  // Read the next record into *record.  Returns true if read
-  // successfully, false if we hit end of the input. The contents filled in
-  // *record will only be valid until the next mutating operation on this
-  // reader.
-  // If blob_offset is non-null, return offset of the blob through it.
-  Status ReadRecord(BlobLogRecord* record, ReadLevel level = kReadHeader,
-                    uint64_t* blob_offset = nullptr);
-
-  Status ReadFooter(BlobLogFooter* footer);
-
-  void ResetNextByte() { next_byte_ = 0; }
-
-  uint64_t GetNextByte() const { return next_byte_; }
-
- private:
-  Status ReadSlice(uint64_t size, Slice* slice, char* buf);
-
-  const std::unique_ptr<RandomAccessFileReader> file_;
-  Env* env_;
-  Statistics* statistics_;
-
-  Slice buffer_;
-  char header_buf_[BlobLogRecord::kHeaderSize];
-
-  // which byte to read next
-  uint64_t next_byte_;
-};
-
-}  // namespace ROCKSDB_NAMESPACE
@@ -3,16 +3,16 @@
 //  COPYING file in the root directory) and Apache 2.0 License
 //  (found in the LICENSE.Apache file in the root directory).
 #pragma once
+#ifndef ROCKSDB_LITE

 #include <sstream>
 #include <string>

-#include "rocksdb/compression_type.h"
+#include "rocksdb/options.h"
 #include "util/coding.h"
-#include "util/compression.h"
 #include "util/string_util.h"

-namespace ROCKSDB_NAMESPACE {
+namespace rocksdb {

 // BlobIndex is a pointer to the blob and metadata of the blob. The index is
 // stored in base DB as ValueType::kTypeBlobIndex.
@@ -83,11 +83,6 @@ class BlobIndex {
    return size_;
  }

-  CompressionType compression() const {
-    assert(!IsInlined());
-    return compression_;
-  }
-
  Status DecodeFrom(Slice slice) {
    static const std::string kErrorMessage = "Error while decoding blob index";
    assert(slice.size() > 0);
@@ -123,8 +118,7 @@ class BlobIndex {
      oss << "[inlined blob] value:" << value_.ToString(output_hex);
    } else {
      oss << "[blob ref] file:" << file_number_ << " offset:" << offset_
-          << " size:" << size_
-          << " compression: " << CompressionTypeToString(compression_);
+          << " size:" << size_;
    }

    if (HasTTL()) {
@@ -181,4 +175,5 @@ class BlobIndex {
  CompressionType compression_ = kNoCompression;
 };

-}  // namespace ROCKSDB_NAMESPACE
+}  // namespace rocksdb
+#endif  // ROCKSDB_LITE
@@ -13,13 +13,11 @@
 #include <deque>
 #include <vector>

-#include "db/blob/blob_file_builder.h"
 #include "db/compaction/compaction_iterator.h"
 #include "db/dbformat.h"
 #include "db/event_helpers.h"
 #include "db/internal_stats.h"
 #include "db/merge_helper.h"
-#include "db/output_validator.h"
 #include "db/range_del_aggregator.h"
 #include "db/table_cache.h"
 #include "db/version_edit.h"
@@ -39,7 +37,7 @@
 #include "test_util/sync_point.h"
 #include "util/stop_watch.h"

-namespace ROCKSDB_NAMESPACE {
+namespace rocksdb {

 class TableFactory;

@@ -53,8 +51,7 @@ TableBuilder* NewTableBuilder(
    uint64_t sample_for_compression, const CompressionOptions& compression_opts,
    int level, const bool skip_filters, const uint64_t creation_time,
    const uint64_t oldest_key_time, const uint64_t target_file_size,
-    const uint64_t file_creation_time, const std::string& db_id,
-    const std::string& db_session_id) {
+    const uint64_t file_creation_time) {
  assert((column_family_id ==
          TablePropertiesCollectorFactory::Context::kUnknownColumnFamily) ==
         column_family_name.empty());
@@ -64,19 +61,18 @@ TableBuilder* NewTableBuilder(
                          sample_for_compression, compression_opts,
                          skip_filters, column_family_name, level,
                          creation_time, oldest_key_time, target_file_size,
-                          file_creation_time, db_id, db_session_id),
+                          file_creation_time),
      column_family_id, file);
 }

 Status BuildTable(
-    const std::string& dbname, VersionSet* versions, Env* env, FileSystem* fs,
+    const std::string& dbname, Env* env, FileSystem* fs,
    const ImmutableCFOptions& ioptions,
    const MutableCFOptions& mutable_cf_options, const FileOptions& file_options,
    TableCache* table_cache, InternalIterator* iter,
    std::vector<std::unique_ptr<FragmentedRangeTombstoneIterator>>
        range_del_iters,
-    FileMetaData* meta, std::vector<BlobFileAddition>* blob_file_additions,
-    const InternalKeyComparator& internal_comparator,
+    FileMetaData* meta, const InternalKeyComparator& internal_comparator,
    const std::vector<std::unique_ptr<IntTblPropCollectorFactory>>*
        int_tbl_prop_collector_factories,
    uint32_t column_family_id, const std::string& column_family_name,
@@ -85,23 +81,15 @@ Status BuildTable(
    SnapshotChecker* snapshot_checker, const CompressionType compression,
    uint64_t sample_for_compression, const CompressionOptions& compression_opts,
    bool paranoid_file_checks, InternalStats* internal_stats,
-    TableFileCreationReason reason, IOStatus* io_status,
-    const std::shared_ptr<IOTracer>& io_tracer, EventLogger* event_logger,
-    int job_id, const Env::IOPriority io_priority,
-    TableProperties* table_properties, int level, const uint64_t creation_time,
-    const uint64_t oldest_key_time, Env::WriteLifeTimeHint write_hint,
-    const uint64_t file_creation_time, const std::string& db_id,
-    const std::string& db_session_id) {
+    TableFileCreationReason reason, EventLogger* event_logger, int job_id,
+    const Env::IOPriority io_priority, TableProperties* table_properties,
+    int level, const uint64_t creation_time, const uint64_t oldest_key_time,
+    Env::WriteLifeTimeHint write_hint, const uint64_t file_creation_time) {
  assert((column_family_id ==
          TablePropertiesCollectorFactory::Context::kUnknownColumnFamily) ==
         column_family_name.empty());
  // Reports the IOStats for flush for every following bytes.
  const size_t kReportFlushIOStatsEvery = 1048576;
-  OutputValidator output_validator(
-      internal_comparator,
-      /*enable_order_check=*/
-      mutable_cf_options.check_flush_compaction_key_order,
-      /*enable_hash=*/paranoid_file_checks);
  Status s;
  meta->fd.file_size = 0;
  iter->SeekToFirst();
@@ -113,14 +101,12 @@ Status BuildTable(

  std::string fname = TableFileName(ioptions.cf_paths, meta->fd.GetNumber(),
                                    meta->fd.GetPathId());
-  std::vector<std::string> blob_file_paths;
-  std::string file_checksum = kUnknownFileChecksum;
-  std::string file_checksum_func_name = kUnknownFileChecksumFuncName;
 #ifndef ROCKSDB_LITE
  EventHelpers::NotifyTableFileCreationStarted(
      ioptions.listeners, dbname, column_family_name, fname, job_id, reason);
 #endif  // !ROCKSDB_LITE
  TableProperties tp;
+
  if (iter->Valid() || !range_del_agg->IsEmpty()) {
    TableBuilder* builder;
    std::unique_ptr<WritableFileWriter> file_writer;
@@ -135,34 +121,26 @@ Status BuildTable(
      bool use_direct_writes = file_options.use_direct_writes;
      TEST_SYNC_POINT_CALLBACK("BuildTable:create_file", &use_direct_writes);
 #endif  // !NDEBUG
-      IOStatus io_s = NewWritableFile(fs, fname, &file, file_options);
-      assert(s.ok());
-      s = io_s;
-      if (io_status->ok()) {
-        *io_status = io_s;
-      }
+      s = NewWritableFile(fs, fname, &file, file_options);
      if (!s.ok()) {
        EventHelpers::LogAndNotifyTableFileCreationFinished(
            event_logger, ioptions.listeners, dbname, column_family_name, fname,
-            job_id, meta->fd, kInvalidBlobFileNumber, tp, reason, s,
-            file_checksum, file_checksum_func_name);
+            job_id, meta->fd, kInvalidBlobFileNumber, tp, reason, s);
        return s;
      }
      file->SetIOPriority(io_priority);
      file->SetWriteLifeTimeHint(write_hint);

-      file_writer.reset(new WritableFileWriter(
-          std::move(file), fname, file_options, env, io_tracer,
-          ioptions.statistics, ioptions.listeners,
-          ioptions.file_checksum_gen_factory));
-
+      file_writer.reset(
+          new WritableFileWriter(std::move(file), fname, file_options, env,
+                                 ioptions.statistics, ioptions.listeners));
      builder = NewTableBuilder(
          ioptions, mutable_cf_options, internal_comparator,
          int_tbl_prop_collector_factories, column_family_id,
          column_family_name, file_writer.get(), compression,
          sample_for_compression, compression_opts_for_flush, level,
          false /* skip_filters */, creation_time, oldest_key_time,
-          0 /*target_file_size*/, file_creation_time, db_id, db_session_id);
+          0 /*target_file_size*/, file_creation_time);
    }

    MergeHelper merge(env, internal_comparator.user_comparator(),
@@ -171,32 +149,16 @@ Status BuildTable(
                      snapshots.empty() ? 0 : snapshots.back(),
                      snapshot_checker);

-    std::unique_ptr<BlobFileBuilder> blob_file_builder(
-        (mutable_cf_options.enable_blob_files && blob_file_additions)
-            ? new BlobFileBuilder(versions, env, fs, &ioptions,
-                                  &mutable_cf_options, &file_options, job_id,
-                                  column_family_id, column_family_name,
-                                  io_priority, write_hint, &blob_file_paths,
-                                  blob_file_additions)
-            : nullptr);
-
    CompactionIterator c_iter(
        iter, internal_comparator.user_comparator(), &merge, kMaxSequenceNumber,
        &snapshots, earliest_write_conflict_snapshot, snapshot_checker, env,
        ShouldReportDetailedTime(env, ioptions.statistics),
-        true /* internal key corruption is not ok */, range_del_agg.get(),
-        blob_file_builder.get(), ioptions.allow_data_in_errors);
-
+        true /* internal key corruption is not ok */, range_del_agg.get());
    c_iter.SeekToFirst();
    for (; c_iter.Valid(); c_iter.Next()) {
      const Slice& key = c_iter.key();
      const Slice& value = c_iter.value();
      const ParsedInternalKey& ikey = c_iter.ikey();
-      // Generate a rolling 64-bit hash of the key and values
-      s = output_validator.Add(key, value);
-      if (!s.ok()) {
-        break;
-      }
      builder->Add(key, value);
      meta->UpdateBoundaries(key, value, ikey.sequence, ikey.type);

@@ -207,37 +169,26 @@ Status BuildTable(
            ThreadStatus::FLUSH_BYTES_WRITTEN, IOSTATS(bytes_written));
      }
    }
-    if (!s.ok()) {
-      c_iter.status().PermitUncheckedError();
-    } else if (!c_iter.status().ok()) {
-      s = c_iter.status();
-    }
-    if (s.ok()) {
-      auto range_del_it = range_del_agg->NewIterator();
-      for (range_del_it->SeekToFirst(); range_del_it->Valid();
-           range_del_it->Next()) {
-        auto tombstone = range_del_it->Tombstone();
-        auto kv = tombstone.Serialize();
-        builder->Add(kv.first.Encode(), kv.second);
-        meta->UpdateBoundariesForRange(kv.first, tombstone.SerializeEndKey(),
-                                       tombstone.seq_, internal_comparator);
-      }

-      if (blob_file_builder) {
-        s = blob_file_builder->Finish();
-      }
+    auto range_del_it = range_del_agg->NewIterator();
+    for (range_del_it->SeekToFirst(); range_del_it->Valid();
+         range_del_it->Next()) {
+      auto tombstone = range_del_it->Tombstone();
+      auto kv = tombstone.Serialize();
+      builder->Add(kv.first.Encode(), kv.second);
+      meta->UpdateBoundariesForRange(kv.first, tombstone.SerializeEndKey(),
+                                     tombstone.seq_, internal_comparator);
    }

-    TEST_SYNC_POINT("BuildTable:BeforeFinishBuildTable");
-    const bool empty = builder->IsEmpty();
+    // Finish and check for builder errors
+    tp = builder->GetTableProperties();
+    bool empty = builder->NumEntries() == 0 && tp.num_range_deletions == 0;
+    s = c_iter.status();
    if (!s.ok() || empty) {
      builder->Abandon();
    } else {
      s = builder->Finish();
    }
-    if (io_status->ok()) {
-      *io_status = builder->io_status();
-    }

    if (s.ok() && !empty) {
      uint64_t file_size = builder->FileSize();
@@ -252,28 +203,13 @@ Status BuildTable(
    delete builder;

    // Finish and check for file errors
-    TEST_SYNC_POINT("BuildTable:BeforeSyncTable");
    if (s.ok() && !empty) {
      StopWatch sw(env, ioptions.statistics, TABLE_SYNC_MICROS);
-      *io_status = file_writer->Sync(ioptions.use_fsync);
+      s = file_writer->Sync(ioptions.use_fsync);
    }
-    TEST_SYNC_POINT("BuildTable:BeforeCloseTableFile");
-    if (s.ok() && io_status->ok() && !empty) {
-      *io_status = file_writer->Close();
+    if (s.ok() && !empty) {
+      s = file_writer->Close();
    }
-    if (s.ok() && io_status->ok() && !empty) {
-      // Add the checksum information to file metadata.
-      meta->file_checksum = file_writer->GetFileChecksum();
-      meta->file_checksum_func_name = file_writer->GetFileChecksumFuncName();
-      file_checksum = meta->file_checksum;
-      file_checksum_func_name = meta->file_checksum_func_name;
-    }
-
-    if (s.ok()) {
-      s = *io_status;
-    }
-
-    // TODO Also check the IO status when create the Iterator.

    if (s.ok() && !empty) {
      // Verify that the table is usable
@@ -282,32 +218,20 @@ Status BuildTable(
      // No matter whether use_direct_io_for_flush_and_compaction is true,
      // we will regrad this verification as user reads since the goal is
      // to cache it here for further user reads
-      ReadOptions read_options;
      std::unique_ptr<InternalIterator> it(table_cache->NewIterator(
-          read_options, file_options, internal_comparator, *meta,
+          ReadOptions(), file_options, internal_comparator, *meta,
          nullptr /* range_del_agg */,
          mutable_cf_options.prefix_extractor.get(), nullptr,
          (internal_stats == nullptr) ? nullptr
                                      : internal_stats->GetFileReadHist(0),
          TableReaderCaller::kFlush, /*arena=*/nullptr,
-          /*skip_filter=*/false, level,
-          MaxFileSizeForL0MetaPin(mutable_cf_options),
-          /*smallest_compaction_key=*/nullptr,
-          /*largest_compaction_key*/ nullptr,
-          /*allow_unprepared_value*/ false));
+          /*skip_filter=*/false, level, /*smallest_compaction_key=*/nullptr,
+          /*largest_compaction_key*/ nullptr));
      s = it->status();
      if (s.ok() && paranoid_file_checks) {
-        OutputValidator file_validator(internal_comparator,
-                                       /*enable_order_check=*/true,
-                                       /*enable_hash=*/true);
        for (it->SeekToFirst(); it->Valid(); it->Next()) {
-          // Generate a rolling 64-bit hash of the key and values
-          file_validator.Add(it->key(), it->value()).PermitUncheckedError();
        }
        s = it->status();
-        if (s.ok() && !output_validator.CompareValidator(file_validator)) {
-          s = Status::Corruption("Paranoid checksums do not match");
-        }
      }
    }
  }
@@ -318,21 +242,7 @@ Status BuildTable(
  }

  if (!s.ok() || meta->fd.GetFileSize() == 0) {
-    constexpr IODebugContext* dbg = nullptr;
-
-    Status ignored = fs->DeleteFile(fname, IOOptions(), dbg);
-    ignored.PermitUncheckedError();
-
-    assert(blob_file_additions || blob_file_paths.empty());
-
-    if (blob_file_additions) {
-      for (const std::string& blob_file_path : blob_file_paths) {
-        ignored = fs->DeleteFile(blob_file_path, IOOptions(), dbg);
-        ignored.PermitUncheckedError();
-      }
-
-      blob_file_additions->clear();
-    }
+    fs->DeleteFile(fname, IOOptions(), nullptr);
  }

  if (meta->fd.GetFileSize() == 0) {
@@ -341,10 +251,9 @@ Status BuildTable(
  // Output to event logger and fire events.
  EventHelpers::LogAndNotifyTableFileCreationFinished(
      event_logger, ioptions.listeners, dbname, column_family_name, fname,
-      job_id, meta->fd, meta->oldest_blob_file_number, tp, reason, s,
-      file_checksum, file_checksum_func_name);
+      job_id, meta->fd, meta->oldest_blob_file_number, tp, reason, s);

  return s;
 }

-}  // namespace ROCKSDB_NAMESPACE
+}  // namespace rocksdb
@@ -22,15 +22,13 @@
 #include "rocksdb/types.h"
 #include "table/scoped_arena_iterator.h"

-namespace ROCKSDB_NAMESPACE {
+namespace rocksdb {

 struct Options;
 struct FileMetaData;

-class VersionSet;
 class Env;
 struct EnvOptions;
-class BlobFileAddition;
 class Iterator;
 class SnapshotChecker;
 class TableCache;
@@ -53,8 +51,7 @@ TableBuilder* NewTableBuilder(
    const CompressionOptions& compression_opts, int level,
    const bool skip_filters = false, const uint64_t creation_time = 0,
    const uint64_t oldest_key_time = 0, const uint64_t target_file_size = 0,
-    const uint64_t file_creation_time = 0, const std::string& db_id = "",
-    const std::string& db_session_id = "");
+    const uint64_t file_creation_time = 0);

 // Build a Table file from the contents of *iter.  The generated file
 // will be named according to number specified in meta. On success, the rest of
@@ -65,14 +62,13 @@ TableBuilder* NewTableBuilder(
 // @param column_family_name Name of the column family that is also identified
 //    by column_family_id, or empty string if unknown.
 extern Status BuildTable(
-    const std::string& dbname, VersionSet* versions, Env* env, FileSystem* fs,
+    const std::string& dbname, Env* env, FileSystem* fs,
    const ImmutableCFOptions& options,
    const MutableCFOptions& mutable_cf_options, const FileOptions& file_options,
    TableCache* table_cache, InternalIterator* iter,
    std::vector<std::unique_ptr<FragmentedRangeTombstoneIterator>>
        range_del_iters,
-    FileMetaData* meta, std::vector<BlobFileAddition>* blob_file_additions,
-    const InternalKeyComparator& internal_comparator,
+    FileMetaData* meta, const InternalKeyComparator& internal_comparator,
    const std::vector<std::unique_ptr<IntTblPropCollectorFactory>>*
        int_tbl_prop_collector_factories,
    uint32_t column_family_id, const std::string& column_family_name,
@@ -82,13 +78,11 @@ extern Status BuildTable(
    const uint64_t sample_for_compression,
    const CompressionOptions& compression_opts, bool paranoid_file_checks,
    InternalStats* internal_stats, TableFileCreationReason reason,
-    IOStatus* io_status, const std::shared_ptr<IOTracer>& io_tracer,
    EventLogger* event_logger = nullptr, int job_id = 0,
    const Env::IOPriority io_priority = Env::IO_HIGH,
    TableProperties* table_properties = nullptr, int level = -1,
    const uint64_t creation_time = 0, const uint64_t oldest_key_time = 0,
    Env::WriteLifeTimeHint write_hint = Env::WLTH_NOT_SET,
-    const uint64_t file_creation_time = 0, const std::string& db_id = "",
-    const std::string& db_session_id = "");
+    const uint64_t file_creation_time = 0);

-}  // namespace ROCKSDB_NAMESPACE
+}  // namespace rocksdb
@@ -58,11 +58,7 @@ static void StartPhase(const char* name) {
 static const char* GetTempDir(void) {
    const char* ret = getenv("TEST_TMPDIR");
    if (ret == NULL || ret[0] == '\0')
-#ifdef OS_WIN
-      ret = getenv("TEMP");
-#else
-      ret = "/tmp";
-#endif
+        ret = "/tmp";
    return ret;
 }
 #ifdef _MSC_VER
@@ -839,6 +835,23 @@ int main(int argc, char** argv) {
    rocksdb_writebatch_wi_iterate(wbi, &pos, CheckPut, CheckDel);
    CheckCondition(pos == 3);
    rocksdb_writebatch_wi_clear(wbi);
+    rocksdb_writebatch_wi_put(wbi, "bar", 3, "b", 1);
+    rocksdb_writebatch_wi_put(wbi, "bay", 3, "d", 1);
+    rocksdb_writebatch_wi_delete_range(wbi, "bar", 3, "bay", 3);
+    rocksdb_write_writebatch_wi(db, woptions, wbi, &err);
+    CheckNoError(err);
+    CheckGet(db, roptions, "bar", NULL);
+    CheckGet(db, roptions, "bay", "d");
+    rocksdb_writebatch_wi_clear(wbi);
+    const char* start_list[1] = {"bay"};
+    const size_t start_sizes[1] = {3};
+    const char* end_list[1] = {"baz"};
+    const size_t end_sizes[1] = {3};
+    rocksdb_writebatch_wi_delete_rangev(wbi, 1, start_list, start_sizes, end_list,
+                                     end_sizes);
+    rocksdb_write_writebatch_wi(db, woptions, wbi, &err);
+    CheckNoError(err);
+    CheckGet(db, roptions, "bay", NULL);
    rocksdb_writebatch_wi_destroy(wbi);
  }

@@ -1300,29 +1313,6 @@ int main(int argc, char** argv) {
      Free(&vals[i]);
    }

-    {
-      unsigned char value_found = 0;
-
-      CheckCondition(!rocksdb_key_may_exist(db, roptions, "invalid_key", 11,
-                                            NULL, NULL, NULL, 0, NULL));
-      CheckCondition(!rocksdb_key_may_exist(db, roptions, "invalid_key", 11,
-                                            &vals[0], &vals_sizes[0], NULL, 0,
-                                            &value_found));
-      if (value_found) {
-        Free(&vals[0]);
-      }
-
-      CheckCondition(!rocksdb_key_may_exist_cf(db, roptions, handles[1],
-                                               "invalid_key", 11, NULL, NULL,
-                                               NULL, 0, NULL));
-      CheckCondition(!rocksdb_key_may_exist_cf(db, roptions, handles[1],
-                                               "invalid_key", 11, &vals[0],
-                                               &vals_sizes[0], NULL, 0, NULL));
-      if (value_found) {
-        Free(&vals[0]);
-      }
-    }
-
    rocksdb_iterator_t* iter = rocksdb_create_iterator_cf(db, roptions, handles[1]);
    CheckCondition(!rocksdb_iter_valid(iter));
    rocksdb_iter_seek_to_first(iter);
@@ -1488,873 +1478,6 @@ int main(int argc, char** argv) {
    rocksdb_cuckoo_options_destroy(cuckoo_options);
  }

-  StartPhase("options");
-  {
-    rocksdb_options_t* o;
-    o = rocksdb_options_create();
-
-    // Set and check options.
-    rocksdb_options_set_allow_ingest_behind(o, 1);
-    CheckCondition(1 == rocksdb_options_get_allow_ingest_behind(o));
-
-    rocksdb_options_compaction_readahead_size(o, 10);
-    CheckCondition(10 == rocksdb_options_get_compaction_readahead_size(o));
-
-    rocksdb_options_set_create_if_missing(o, 1);
-    CheckCondition(1 == rocksdb_options_get_create_if_missing(o));
-
-    rocksdb_options_set_create_missing_column_families(o, 1);
-    CheckCondition(1 == rocksdb_options_get_create_missing_column_families(o));
-
-    rocksdb_options_set_error_if_exists(o, 1);
-    CheckCondition(1 == rocksdb_options_get_error_if_exists(o));
-
-    rocksdb_options_set_paranoid_checks(o, 1);
-    CheckCondition(1 == rocksdb_options_get_paranoid_checks(o));
-
-    rocksdb_options_set_info_log_level(o, 3);
-    CheckCondition(3 == rocksdb_options_get_info_log_level(o));
-
-    rocksdb_options_set_write_buffer_size(o, 100);
-    CheckCondition(100 == rocksdb_options_get_write_buffer_size(o));
-
-    rocksdb_options_set_db_write_buffer_size(o, 1000);
-    CheckCondition(1000 == rocksdb_options_get_db_write_buffer_size(o));
-
-    rocksdb_options_set_max_open_files(o, 21);
-    CheckCondition(21 == rocksdb_options_get_max_open_files(o));
-
-    rocksdb_options_set_max_file_opening_threads(o, 5);
-    CheckCondition(5 == rocksdb_options_get_max_file_opening_threads(o));
-
-    rocksdb_options_set_max_total_wal_size(o, 400);
-    CheckCondition(400 == rocksdb_options_get_max_total_wal_size(o));
-
-    rocksdb_options_set_num_levels(o, 7);
-    CheckCondition(7 == rocksdb_options_get_num_levels(o));
-
-    rocksdb_options_set_level0_file_num_compaction_trigger(o, 4);
-    CheckCondition(4 ==
-                   rocksdb_options_get_level0_file_num_compaction_trigger(o));
-
-    rocksdb_options_set_level0_slowdown_writes_trigger(o, 6);
-    CheckCondition(6 == rocksdb_options_get_level0_slowdown_writes_trigger(o));
-
-    rocksdb_options_set_level0_stop_writes_trigger(o, 8);
-    CheckCondition(8 == rocksdb_options_get_level0_stop_writes_trigger(o));
-
-    rocksdb_options_set_target_file_size_base(o, 256);
-    CheckCondition(256 == rocksdb_options_get_target_file_size_base(o));
-
-    rocksdb_options_set_target_file_size_multiplier(o, 3);
-    CheckCondition(3 == rocksdb_options_get_target_file_size_multiplier(o));
-
-    rocksdb_options_set_max_bytes_for_level_base(o, 1024);
-    CheckCondition(1024 == rocksdb_options_get_max_bytes_for_level_base(o));
-
-    rocksdb_options_set_level_compaction_dynamic_level_bytes(o, 1);
-    CheckCondition(1 ==
-                   rocksdb_options_get_level_compaction_dynamic_level_bytes(o));
-
-    rocksdb_options_set_max_bytes_for_level_multiplier(o, 2.0);
-    CheckCondition(2.0 ==
-                   rocksdb_options_get_max_bytes_for_level_multiplier(o));
-
-    rocksdb_options_set_skip_stats_update_on_db_open(o, 1);
-    CheckCondition(1 == rocksdb_options_get_skip_stats_update_on_db_open(o));
-
-    rocksdb_options_set_skip_checking_sst_file_sizes_on_db_open(o, 1);
-    CheckCondition(
-        1 == rocksdb_options_get_skip_checking_sst_file_sizes_on_db_open(o));
-
-    rocksdb_options_set_max_write_buffer_number(o, 97);
-    CheckCondition(97 == rocksdb_options_get_max_write_buffer_number(o));
-
-    rocksdb_options_set_min_write_buffer_number_to_merge(o, 23);
-    CheckCondition(23 ==
-                   rocksdb_options_get_min_write_buffer_number_to_merge(o));
-
-    rocksdb_options_set_max_write_buffer_number_to_maintain(o, 64);
-    CheckCondition(64 ==
-                   rocksdb_options_get_max_write_buffer_number_to_maintain(o));
-
-    rocksdb_options_set_max_write_buffer_size_to_maintain(o, 50000);
-    CheckCondition(50000 ==
-                   rocksdb_options_get_max_write_buffer_size_to_maintain(o));
-
-    rocksdb_options_set_enable_pipelined_write(o, 1);
-    CheckCondition(1 == rocksdb_options_get_enable_pipelined_write(o));
-
-    rocksdb_options_set_unordered_write(o, 1);
-    CheckCondition(1 == rocksdb_options_get_unordered_write(o));
-
-    rocksdb_options_set_max_subcompactions(o, 123456);
-    CheckCondition(123456 == rocksdb_options_get_max_subcompactions(o));
-
-    rocksdb_options_set_max_background_jobs(o, 2);
-    CheckCondition(2 == rocksdb_options_get_max_background_jobs(o));
-
-    rocksdb_options_set_max_background_compactions(o, 3);
-    CheckCondition(3 == rocksdb_options_get_max_background_compactions(o));
-
-    rocksdb_options_set_base_background_compactions(o, 4);
-    CheckCondition(4 == rocksdb_options_get_base_background_compactions(o));
-
-    rocksdb_options_set_max_background_flushes(o, 5);
-    CheckCondition(5 == rocksdb_options_get_max_background_flushes(o));
-
-    rocksdb_options_set_max_log_file_size(o, 6);
-    CheckCondition(6 == rocksdb_options_get_max_log_file_size(o));
-
-    rocksdb_options_set_log_file_time_to_roll(o, 7);
-    CheckCondition(7 == rocksdb_options_get_log_file_time_to_roll(o));
-
-    rocksdb_options_set_keep_log_file_num(o, 8);
-    CheckCondition(8 == rocksdb_options_get_keep_log_file_num(o));
-
-    rocksdb_options_set_recycle_log_file_num(o, 9);
-    CheckCondition(9 == rocksdb_options_get_recycle_log_file_num(o));
-
-    rocksdb_options_set_soft_rate_limit(o, 2.0);
-    CheckCondition(2.0 == rocksdb_options_get_soft_rate_limit(o));
-
-    rocksdb_options_set_hard_rate_limit(o, 4.0);
-    CheckCondition(4.0 == rocksdb_options_get_hard_rate_limit(o));
-
-    rocksdb_options_set_soft_pending_compaction_bytes_limit(o, 10);
-    CheckCondition(10 ==
-                   rocksdb_options_get_soft_pending_compaction_bytes_limit(o));
-
-    rocksdb_options_set_hard_pending_compaction_bytes_limit(o, 11);
-    CheckCondition(11 ==
-                   rocksdb_options_get_hard_pending_compaction_bytes_limit(o));
-
-    rocksdb_options_set_rate_limit_delay_max_milliseconds(o, 1);
-    CheckCondition(1 ==
-                   rocksdb_options_get_rate_limit_delay_max_milliseconds(o));
-
-    rocksdb_options_set_max_manifest_file_size(o, 12);
-    CheckCondition(12 == rocksdb_options_get_max_manifest_file_size(o));
-
-    rocksdb_options_set_table_cache_numshardbits(o, 13);
-    CheckCondition(13 == rocksdb_options_get_table_cache_numshardbits(o));
-
-    rocksdb_options_set_arena_block_size(o, 14);
-    CheckCondition(14 == rocksdb_options_get_arena_block_size(o));
-
-    rocksdb_options_set_use_fsync(o, 1);
-    CheckCondition(1 == rocksdb_options_get_use_fsync(o));
-
-    rocksdb_options_set_WAL_ttl_seconds(o, 15);
-    CheckCondition(15 == rocksdb_options_get_WAL_ttl_seconds(o));
-
-    rocksdb_options_set_WAL_size_limit_MB(o, 16);
-    CheckCondition(16 == rocksdb_options_get_WAL_size_limit_MB(o));
-
-    rocksdb_options_set_manifest_preallocation_size(o, 17);
-    CheckCondition(17 == rocksdb_options_get_manifest_preallocation_size(o));
-
-    rocksdb_options_set_allow_mmap_reads(o, 1);
-    CheckCondition(1 == rocksdb_options_get_allow_mmap_reads(o));
-
-    rocksdb_options_set_allow_mmap_writes(o, 1);
-    CheckCondition(1 == rocksdb_options_get_allow_mmap_writes(o));
-
-    rocksdb_options_set_use_direct_reads(o, 1);
-    CheckCondition(1 == rocksdb_options_get_use_direct_reads(o));
-
-    rocksdb_options_set_use_direct_io_for_flush_and_compaction(o, 1);
-    CheckCondition(
-        1 == rocksdb_options_get_use_direct_io_for_flush_and_compaction(o));
-
-    rocksdb_options_set_is_fd_close_on_exec(o, 1);
-    CheckCondition(1 == rocksdb_options_get_is_fd_close_on_exec(o));
-
-    rocksdb_options_set_skip_log_error_on_recovery(o, 1);
-    CheckCondition(1 == rocksdb_options_get_skip_log_error_on_recovery(o));
-
-    rocksdb_options_set_stats_dump_period_sec(o, 18);
-    CheckCondition(18 == rocksdb_options_get_stats_dump_period_sec(o));
-
-    rocksdb_options_set_stats_persist_period_sec(o, 5);
-    CheckCondition(5 == rocksdb_options_get_stats_persist_period_sec(o));
-
-    rocksdb_options_set_advise_random_on_open(o, 1);
-    CheckCondition(1 == rocksdb_options_get_advise_random_on_open(o));
-
-    rocksdb_options_set_access_hint_on_compaction_start(o, 3);
-    CheckCondition(3 == rocksdb_options_get_access_hint_on_compaction_start(o));
-
-    rocksdb_options_set_use_adaptive_mutex(o, 1);
-    CheckCondition(1 == rocksdb_options_get_use_adaptive_mutex(o));
-
-    rocksdb_options_set_bytes_per_sync(o, 19);
-    CheckCondition(19 == rocksdb_options_get_bytes_per_sync(o));
-
-    rocksdb_options_set_wal_bytes_per_sync(o, 20);
-    CheckCondition(20 == rocksdb_options_get_wal_bytes_per_sync(o));
-
-    rocksdb_options_set_writable_file_max_buffer_size(o, 21);
-    CheckCondition(21 == rocksdb_options_get_writable_file_max_buffer_size(o));
-
-    rocksdb_options_set_allow_concurrent_memtable_write(o, 1);
-    CheckCondition(1 == rocksdb_options_get_allow_concurrent_memtable_write(o));
-
-    rocksdb_options_set_enable_write_thread_adaptive_yield(o, 1);
-    CheckCondition(1 ==
-                   rocksdb_options_get_enable_write_thread_adaptive_yield(o));
-
-    rocksdb_options_set_max_sequential_skip_in_iterations(o, 22);
-    CheckCondition(22 ==
-                   rocksdb_options_get_max_sequential_skip_in_iterations(o));
-
-    rocksdb_options_set_disable_auto_compactions(o, 1);
-    CheckCondition(1 == rocksdb_options_get_disable_auto_compactions(o));
-
-    rocksdb_options_set_optimize_filters_for_hits(o, 1);
-    CheckCondition(1 == rocksdb_options_get_optimize_filters_for_hits(o));
-
-    rocksdb_options_set_delete_obsolete_files_period_micros(o, 23);
-    CheckCondition(23 ==
-                   rocksdb_options_get_delete_obsolete_files_period_micros(o));
-
-    rocksdb_options_set_memtable_prefix_bloom_size_ratio(o, 2.0);
-    CheckCondition(2.0 ==
-                   rocksdb_options_get_memtable_prefix_bloom_size_ratio(o));
-
-    rocksdb_options_set_max_compaction_bytes(o, 24);
-    CheckCondition(24 == rocksdb_options_get_max_compaction_bytes(o));
-
-    rocksdb_options_set_memtable_huge_page_size(o, 25);
-    CheckCondition(25 == rocksdb_options_get_memtable_huge_page_size(o));
-
-    rocksdb_options_set_max_successive_merges(o, 26);
-    CheckCondition(26 == rocksdb_options_get_max_successive_merges(o));
-
-    rocksdb_options_set_bloom_locality(o, 27);
-    CheckCondition(27 == rocksdb_options_get_bloom_locality(o));
-
-    rocksdb_options_set_inplace_update_support(o, 1);
-    CheckCondition(1 == rocksdb_options_get_inplace_update_support(o));
-
-    rocksdb_options_set_inplace_update_num_locks(o, 28);
-    CheckCondition(28 == rocksdb_options_get_inplace_update_num_locks(o));
-
-    rocksdb_options_set_report_bg_io_stats(o, 1);
-    CheckCondition(1 == rocksdb_options_get_report_bg_io_stats(o));
-
-    rocksdb_options_set_wal_recovery_mode(o, 2);
-    CheckCondition(2 == rocksdb_options_get_wal_recovery_mode(o));
-
-    rocksdb_options_set_compression(o, 5);
-    CheckCondition(5 == rocksdb_options_get_compression(o));
-
-    rocksdb_options_set_bottommost_compression(o, 4);
-    CheckCondition(4 == rocksdb_options_get_bottommost_compression(o));
-
-    rocksdb_options_set_compaction_style(o, 2);
-    CheckCondition(2 == rocksdb_options_get_compaction_style(o));
-
-    rocksdb_options_set_atomic_flush(o, 1);
-    CheckCondition(1 == rocksdb_options_get_atomic_flush(o));
-
-    // Create a copy that should be equal to the original.
-    rocksdb_options_t* copy;
-    copy = rocksdb_options_create_copy(o);
-
-    CheckCondition(1 == rocksdb_options_get_allow_ingest_behind(copy));
-    CheckCondition(10 == rocksdb_options_get_compaction_readahead_size(copy));
-    CheckCondition(1 == rocksdb_options_get_create_if_missing(copy));
-    CheckCondition(1 ==
-                   rocksdb_options_get_create_missing_column_families(copy));
-    CheckCondition(1 == rocksdb_options_get_error_if_exists(copy));
-    CheckCondition(1 == rocksdb_options_get_paranoid_checks(copy));
-    CheckCondition(3 == rocksdb_options_get_info_log_level(copy));
-    CheckCondition(100 == rocksdb_options_get_write_buffer_size(copy));
-    CheckCondition(1000 == rocksdb_options_get_db_write_buffer_size(copy));
-    CheckCondition(21 == rocksdb_options_get_max_open_files(copy));
-    CheckCondition(5 == rocksdb_options_get_max_file_opening_threads(copy));
-    CheckCondition(400 == rocksdb_options_get_max_total_wal_size(copy));
-    CheckCondition(7 == rocksdb_options_get_num_levels(copy));
-    CheckCondition(
-        4 == rocksdb_options_get_level0_file_num_compaction_trigger(copy));
-    CheckCondition(6 ==
-                   rocksdb_options_get_level0_slowdown_writes_trigger(copy));
-    CheckCondition(8 == rocksdb_options_get_level0_stop_writes_trigger(copy));
-    CheckCondition(256 == rocksdb_options_get_target_file_size_base(copy));
-    CheckCondition(3 == rocksdb_options_get_target_file_size_multiplier(copy));
-    CheckCondition(1024 == rocksdb_options_get_max_bytes_for_level_base(copy));
-    CheckCondition(
-        1 == rocksdb_options_get_level_compaction_dynamic_level_bytes(copy));
-    CheckCondition(2.0 ==
-                   rocksdb_options_get_max_bytes_for_level_multiplier(copy));
-    CheckCondition(1 == rocksdb_options_get_skip_stats_update_on_db_open(copy));
-    CheckCondition(
-        1 == rocksdb_options_get_skip_checking_sst_file_sizes_on_db_open(copy));
-    CheckCondition(97 == rocksdb_options_get_max_write_buffer_number(copy));
-    CheckCondition(23 ==
-                   rocksdb_options_get_min_write_buffer_number_to_merge(copy));
-    CheckCondition(
-        64 == rocksdb_options_get_max_write_buffer_number_to_maintain(copy));
-    CheckCondition(50000 ==
-                   rocksdb_options_get_max_write_buffer_size_to_maintain(copy));
-    CheckCondition(1 == rocksdb_options_get_enable_pipelined_write(copy));
-    CheckCondition(1 == rocksdb_options_get_unordered_write(copy));
-    CheckCondition(123456 == rocksdb_options_get_max_subcompactions(copy));
-    CheckCondition(2 == rocksdb_options_get_max_background_jobs(copy));
-    CheckCondition(3 == rocksdb_options_get_max_background_compactions(copy));
-    CheckCondition(4 == rocksdb_options_get_base_background_compactions(copy));
-    CheckCondition(5 == rocksdb_options_get_max_background_flushes(copy));
-    CheckCondition(6 == rocksdb_options_get_max_log_file_size(copy));
-    CheckCondition(7 == rocksdb_options_get_log_file_time_to_roll(copy));
-    CheckCondition(8 == rocksdb_options_get_keep_log_file_num(copy));
-    CheckCondition(9 == rocksdb_options_get_recycle_log_file_num(copy));
-    CheckCondition(2.0 == rocksdb_options_get_soft_rate_limit(copy));
-    CheckCondition(4.0 == rocksdb_options_get_hard_rate_limit(copy));
-    CheckCondition(
-        10 == rocksdb_options_get_soft_pending_compaction_bytes_limit(copy));
-    CheckCondition(
-        11 == rocksdb_options_get_hard_pending_compaction_bytes_limit(copy));
-    CheckCondition(1 ==
-                   rocksdb_options_get_rate_limit_delay_max_milliseconds(copy));
-    CheckCondition(12 == rocksdb_options_get_max_manifest_file_size(copy));
-    CheckCondition(13 == rocksdb_options_get_table_cache_numshardbits(copy));
-    CheckCondition(14 == rocksdb_options_get_arena_block_size(copy));
-    CheckCondition(1 == rocksdb_options_get_use_fsync(copy));
-    CheckCondition(15 == rocksdb_options_get_WAL_ttl_seconds(copy));
-    CheckCondition(16 == rocksdb_options_get_WAL_size_limit_MB(copy));
-    CheckCondition(17 == rocksdb_options_get_manifest_preallocation_size(copy));
-    CheckCondition(1 == rocksdb_options_get_allow_mmap_reads(copy));
-    CheckCondition(1 == rocksdb_options_get_allow_mmap_writes(copy));
-    CheckCondition(1 == rocksdb_options_get_use_direct_reads(copy));
-    CheckCondition(
-        1 == rocksdb_options_get_use_direct_io_for_flush_and_compaction(copy));
-    CheckCondition(1 == rocksdb_options_get_is_fd_close_on_exec(copy));
-    CheckCondition(1 == rocksdb_options_get_skip_log_error_on_recovery(copy));
-    CheckCondition(18 == rocksdb_options_get_stats_dump_period_sec(copy));
-    CheckCondition(5 == rocksdb_options_get_stats_persist_period_sec(copy));
-    CheckCondition(1 == rocksdb_options_get_advise_random_on_open(copy));
-    CheckCondition(3 ==
-                   rocksdb_options_get_access_hint_on_compaction_start(copy));
-    CheckCondition(1 == rocksdb_options_get_use_adaptive_mutex(copy));
-    CheckCondition(19 == rocksdb_options_get_bytes_per_sync(copy));
-    CheckCondition(20 == rocksdb_options_get_wal_bytes_per_sync(copy));
-    CheckCondition(21 ==
-                   rocksdb_options_get_writable_file_max_buffer_size(copy));
-    CheckCondition(1 ==
-                   rocksdb_options_get_allow_concurrent_memtable_write(copy));
-    CheckCondition(
-        1 == rocksdb_options_get_enable_write_thread_adaptive_yield(copy));
-    CheckCondition(22 ==
-                   rocksdb_options_get_max_sequential_skip_in_iterations(copy));
-    CheckCondition(1 == rocksdb_options_get_disable_auto_compactions(copy));
-    CheckCondition(1 == rocksdb_options_get_optimize_filters_for_hits(copy));
-    CheckCondition(
-        23 == rocksdb_options_get_delete_obsolete_files_period_micros(copy));
-    CheckCondition(2.0 ==
-                   rocksdb_options_get_memtable_prefix_bloom_size_ratio(copy));
-    CheckCondition(24 == rocksdb_options_get_max_compaction_bytes(copy));
-    CheckCondition(25 == rocksdb_options_get_memtable_huge_page_size(copy));
-    CheckCondition(26 == rocksdb_options_get_max_successive_merges(copy));
-    CheckCondition(27 == rocksdb_options_get_bloom_locality(copy));
-    CheckCondition(1 == rocksdb_options_get_inplace_update_support(copy));
-    CheckCondition(28 == rocksdb_options_get_inplace_update_num_locks(copy));
-    CheckCondition(1 == rocksdb_options_get_report_bg_io_stats(copy));
-    CheckCondition(2 == rocksdb_options_get_wal_recovery_mode(copy));
-    CheckCondition(5 == rocksdb_options_get_compression(copy));
-    CheckCondition(4 == rocksdb_options_get_bottommost_compression(copy));
-    CheckCondition(2 == rocksdb_options_get_compaction_style(copy));
-    CheckCondition(1 == rocksdb_options_get_atomic_flush(copy));
-
-    // Copies should be independent.
-    rocksdb_options_set_allow_ingest_behind(copy, 0);
-    CheckCondition(0 == rocksdb_options_get_allow_ingest_behind(copy));
-    CheckCondition(1 == rocksdb_options_get_allow_ingest_behind(o));
-
-    rocksdb_options_compaction_readahead_size(copy, 20);
-    CheckCondition(20 == rocksdb_options_get_compaction_readahead_size(copy));
-    CheckCondition(10 == rocksdb_options_get_compaction_readahead_size(o));
-
-    rocksdb_options_set_create_if_missing(copy, 0);
-    CheckCondition(0 == rocksdb_options_get_create_if_missing(copy));
-    CheckCondition(1 == rocksdb_options_get_create_if_missing(o));
-
-    rocksdb_options_set_create_missing_column_families(copy, 0);
-    CheckCondition(0 ==
-                   rocksdb_options_get_create_missing_column_families(copy));
-    CheckCondition(1 == rocksdb_options_get_create_missing_column_families(o));
-
-    rocksdb_options_set_error_if_exists(copy, 0);
-    CheckCondition(0 == rocksdb_options_get_error_if_exists(copy));
-    CheckCondition(1 == rocksdb_options_get_error_if_exists(o));
-
-    rocksdb_options_set_paranoid_checks(copy, 0);
-    CheckCondition(0 == rocksdb_options_get_paranoid_checks(copy));
-    CheckCondition(1 == rocksdb_options_get_paranoid_checks(o));
-
-    rocksdb_options_set_info_log_level(copy, 2);
-    CheckCondition(2 == rocksdb_options_get_info_log_level(copy));
-    CheckCondition(3 == rocksdb_options_get_info_log_level(o));
-
-    rocksdb_options_set_write_buffer_size(copy, 200);
-    CheckCondition(200 == rocksdb_options_get_write_buffer_size(copy));
-    CheckCondition(100 == rocksdb_options_get_write_buffer_size(o));
-
-    rocksdb_options_set_db_write_buffer_size(copy, 2000);
-    CheckCondition(2000 == rocksdb_options_get_db_write_buffer_size(copy));
-    CheckCondition(1000 == rocksdb_options_get_db_write_buffer_size(o));
-
-    rocksdb_options_set_max_open_files(copy, 42);
-    CheckCondition(42 == rocksdb_options_get_max_open_files(copy));
-    CheckCondition(21 == rocksdb_options_get_max_open_files(o));
-
-    rocksdb_options_set_max_file_opening_threads(copy, 3);
-    CheckCondition(3 == rocksdb_options_get_max_file_opening_threads(copy));
-    CheckCondition(5 == rocksdb_options_get_max_file_opening_threads(o));
-
-    rocksdb_options_set_max_total_wal_size(copy, 4000);
-    CheckCondition(4000 == rocksdb_options_get_max_total_wal_size(copy));
-    CheckCondition(400 == rocksdb_options_get_max_total_wal_size(o));
-
-    rocksdb_options_set_num_levels(copy, 6);
-    CheckCondition(6 == rocksdb_options_get_num_levels(copy));
-    CheckCondition(7 == rocksdb_options_get_num_levels(o));
-
-    rocksdb_options_set_level0_file_num_compaction_trigger(copy, 14);
-    CheckCondition(
-        14 == rocksdb_options_get_level0_file_num_compaction_trigger(copy));
-    CheckCondition(4 ==
-                   rocksdb_options_get_level0_file_num_compaction_trigger(o));
-
-    rocksdb_options_set_level0_slowdown_writes_trigger(copy, 61);
-    CheckCondition(61 ==
-                   rocksdb_options_get_level0_slowdown_writes_trigger(copy));
-    CheckCondition(6 == rocksdb_options_get_level0_slowdown_writes_trigger(o));
-
-    rocksdb_options_set_level0_stop_writes_trigger(copy, 17);
-    CheckCondition(17 == rocksdb_options_get_level0_stop_writes_trigger(copy));
-    CheckCondition(8 == rocksdb_options_get_level0_stop_writes_trigger(o));
-
-    rocksdb_options_set_target_file_size_base(copy, 128);
-    CheckCondition(128 == rocksdb_options_get_target_file_size_base(copy));
-    CheckCondition(256 == rocksdb_options_get_target_file_size_base(o));
-
-    rocksdb_options_set_target_file_size_multiplier(copy, 13);
-    CheckCondition(13 == rocksdb_options_get_target_file_size_multiplier(copy));
-    CheckCondition(3 == rocksdb_options_get_target_file_size_multiplier(o));
-
-    rocksdb_options_set_max_bytes_for_level_base(copy, 900);
-    CheckCondition(900 == rocksdb_options_get_max_bytes_for_level_base(copy));
-    CheckCondition(1024 == rocksdb_options_get_max_bytes_for_level_base(o));
-
-    rocksdb_options_set_level_compaction_dynamic_level_bytes(copy, 0);
-    CheckCondition(
-        0 == rocksdb_options_get_level_compaction_dynamic_level_bytes(copy));
-    CheckCondition(1 ==
-                   rocksdb_options_get_level_compaction_dynamic_level_bytes(o));
-
-    rocksdb_options_set_max_bytes_for_level_multiplier(copy, 8.0);
-    CheckCondition(8.0 ==
-                   rocksdb_options_get_max_bytes_for_level_multiplier(copy));
-    CheckCondition(2.0 ==
-                   rocksdb_options_get_max_bytes_for_level_multiplier(o));
-
-    rocksdb_options_set_skip_stats_update_on_db_open(copy, 0);
-    CheckCondition(0 == rocksdb_options_get_skip_stats_update_on_db_open(copy));
-    CheckCondition(1 == rocksdb_options_get_skip_stats_update_on_db_open(o));
-
-    rocksdb_options_set_skip_checking_sst_file_sizes_on_db_open(copy, 0);
-    CheckCondition(
-        0 == rocksdb_options_get_skip_checking_sst_file_sizes_on_db_open(copy));
-    CheckCondition(
-        1 == rocksdb_options_get_skip_checking_sst_file_sizes_on_db_open(o));
-
-    rocksdb_options_set_max_write_buffer_number(copy, 2000);
-    CheckCondition(2000 == rocksdb_options_get_max_write_buffer_number(copy));
-    CheckCondition(97 == rocksdb_options_get_max_write_buffer_number(o));
-
-    rocksdb_options_set_min_write_buffer_number_to_merge(copy, 146);
-    CheckCondition(146 ==
-                   rocksdb_options_get_min_write_buffer_number_to_merge(copy));
-    CheckCondition(23 ==
-                   rocksdb_options_get_min_write_buffer_number_to_merge(o));
-
-    rocksdb_options_set_max_write_buffer_number_to_maintain(copy, 128);
-    CheckCondition(
-        128 == rocksdb_options_get_max_write_buffer_number_to_maintain(copy));
-    CheckCondition(64 ==
-                   rocksdb_options_get_max_write_buffer_number_to_maintain(o));
-
-    rocksdb_options_set_max_write_buffer_size_to_maintain(copy, 9000);
-    CheckCondition(9000 ==
-                   rocksdb_options_get_max_write_buffer_size_to_maintain(copy));
-    CheckCondition(50000 ==
-                   rocksdb_options_get_max_write_buffer_size_to_maintain(o));
-
-    rocksdb_options_set_enable_pipelined_write(copy, 0);
-    CheckCondition(0 == rocksdb_options_get_enable_pipelined_write(copy));
-    CheckCondition(1 == rocksdb_options_get_enable_pipelined_write(o));
-
-    rocksdb_options_set_unordered_write(copy, 0);
-    CheckCondition(0 == rocksdb_options_get_unordered_write(copy));
-    CheckCondition(1 == rocksdb_options_get_unordered_write(o));
-
-    rocksdb_options_set_max_subcompactions(copy, 90001);
-    CheckCondition(90001 == rocksdb_options_get_max_subcompactions(copy));
-    CheckCondition(123456 == rocksdb_options_get_max_subcompactions(o));
-
-    rocksdb_options_set_max_background_jobs(copy, 12);
-    CheckCondition(12 == rocksdb_options_get_max_background_jobs(copy));
-    CheckCondition(2 == rocksdb_options_get_max_background_jobs(o));
-
-    rocksdb_options_set_max_background_compactions(copy, 13);
-    CheckCondition(13 == rocksdb_options_get_max_background_compactions(copy));
-    CheckCondition(3 == rocksdb_options_get_max_background_compactions(o));
-
-    rocksdb_options_set_base_background_compactions(copy, 14);
-    CheckCondition(14 == rocksdb_options_get_base_background_compactions(copy));
-    CheckCondition(4 == rocksdb_options_get_base_background_compactions(o));
-
-    rocksdb_options_set_max_background_flushes(copy, 15);
-    CheckCondition(15 == rocksdb_options_get_max_background_flushes(copy));
-    CheckCondition(5 == rocksdb_options_get_max_background_flushes(o));
-
-    rocksdb_options_set_max_log_file_size(copy, 16);
-    CheckCondition(16 == rocksdb_options_get_max_log_file_size(copy));
-    CheckCondition(6 == rocksdb_options_get_max_log_file_size(o));
-
-    rocksdb_options_set_log_file_time_to_roll(copy, 17);
-    CheckCondition(17 == rocksdb_options_get_log_file_time_to_roll(copy));
-    CheckCondition(7 == rocksdb_options_get_log_file_time_to_roll(o));
-
-    rocksdb_options_set_keep_log_file_num(copy, 18);
-    CheckCondition(18 == rocksdb_options_get_keep_log_file_num(copy));
-    CheckCondition(8 == rocksdb_options_get_keep_log_file_num(o));
-
-    rocksdb_options_set_recycle_log_file_num(copy, 19);
-    CheckCondition(19 == rocksdb_options_get_recycle_log_file_num(copy));
-    CheckCondition(9 == rocksdb_options_get_recycle_log_file_num(o));
-
-    rocksdb_options_set_soft_rate_limit(copy, 4.0);
-    CheckCondition(4.0 == rocksdb_options_get_soft_rate_limit(copy));
-    CheckCondition(2.0 == rocksdb_options_get_soft_rate_limit(o));
-
-    rocksdb_options_set_hard_rate_limit(copy, 2.0);
-    CheckCondition(2.0 == rocksdb_options_get_hard_rate_limit(copy));
-    CheckCondition(4.0 == rocksdb_options_get_hard_rate_limit(o));
-
-    rocksdb_options_set_soft_pending_compaction_bytes_limit(copy, 110);
-    CheckCondition(
-        110 == rocksdb_options_get_soft_pending_compaction_bytes_limit(copy));
-    CheckCondition(10 ==
-                   rocksdb_options_get_soft_pending_compaction_bytes_limit(o));
-
-    rocksdb_options_set_hard_pending_compaction_bytes_limit(copy, 111);
-    CheckCondition(
-        111 == rocksdb_options_get_hard_pending_compaction_bytes_limit(copy));
-    CheckCondition(11 ==
-                   rocksdb_options_get_hard_pending_compaction_bytes_limit(o));
-
-    rocksdb_options_set_rate_limit_delay_max_milliseconds(copy, 0);
-    CheckCondition(0 ==
-                   rocksdb_options_get_rate_limit_delay_max_milliseconds(copy));
-    CheckCondition(1 ==
-                   rocksdb_options_get_rate_limit_delay_max_milliseconds(o));
-
-    rocksdb_options_set_max_manifest_file_size(copy, 112);
-    CheckCondition(112 == rocksdb_options_get_max_manifest_file_size(copy));
-    CheckCondition(12 == rocksdb_options_get_max_manifest_file_size(o));
-
-    rocksdb_options_set_table_cache_numshardbits(copy, 113);
-    CheckCondition(113 == rocksdb_options_get_table_cache_numshardbits(copy));
-    CheckCondition(13 == rocksdb_options_get_table_cache_numshardbits(o));
-
-    rocksdb_options_set_arena_block_size(copy, 114);
-    CheckCondition(114 == rocksdb_options_get_arena_block_size(copy));
-    CheckCondition(14 == rocksdb_options_get_arena_block_size(o));
-
-    rocksdb_options_set_use_fsync(copy, 0);
-    CheckCondition(0 == rocksdb_options_get_use_fsync(copy));
-    CheckCondition(1 == rocksdb_options_get_use_fsync(o));
-
-    rocksdb_options_set_WAL_ttl_seconds(copy, 115);
-    CheckCondition(115 == rocksdb_options_get_WAL_ttl_seconds(copy));
-    CheckCondition(15 == rocksdb_options_get_WAL_ttl_seconds(o));
-
-    rocksdb_options_set_WAL_size_limit_MB(copy, 116);
-    CheckCondition(116 == rocksdb_options_get_WAL_size_limit_MB(copy));
-    CheckCondition(16 == rocksdb_options_get_WAL_size_limit_MB(o));
-
-    rocksdb_options_set_manifest_preallocation_size(copy, 117);
-    CheckCondition(117 ==
-                   rocksdb_options_get_manifest_preallocation_size(copy));
-    CheckCondition(17 == rocksdb_options_get_manifest_preallocation_size(o));
-
-    rocksdb_options_set_allow_mmap_reads(copy, 0);
-    CheckCondition(0 == rocksdb_options_get_allow_mmap_reads(copy));
-    CheckCondition(1 == rocksdb_options_get_allow_mmap_reads(o));
-
-    rocksdb_options_set_allow_mmap_writes(copy, 0);
-    CheckCondition(0 == rocksdb_options_get_allow_mmap_writes(copy));
-    CheckCondition(1 == rocksdb_options_get_allow_mmap_writes(o));
-
-    rocksdb_options_set_use_direct_reads(copy, 0);
-    CheckCondition(0 == rocksdb_options_get_use_direct_reads(copy));
-    CheckCondition(1 == rocksdb_options_get_use_direct_reads(o));
-
-    rocksdb_options_set_use_direct_io_for_flush_and_compaction(copy, 0);
-    CheckCondition(
-        0 == rocksdb_options_get_use_direct_io_for_flush_and_compaction(copy));
-    CheckCondition(
-        1 == rocksdb_options_get_use_direct_io_for_flush_and_compaction(o));
-
-    rocksdb_options_set_is_fd_close_on_exec(copy, 0);
-    CheckCondition(0 == rocksdb_options_get_is_fd_close_on_exec(copy));
-    CheckCondition(1 == rocksdb_options_get_is_fd_close_on_exec(o));
-
-    rocksdb_options_set_skip_log_error_on_recovery(copy, 0);
-    CheckCondition(0 == rocksdb_options_get_skip_log_error_on_recovery(copy));
-    CheckCondition(1 == rocksdb_options_get_skip_log_error_on_recovery(o));
-
-    rocksdb_options_set_stats_dump_period_sec(copy, 218);
-    CheckCondition(218 == rocksdb_options_get_stats_dump_period_sec(copy));
-    CheckCondition(18 == rocksdb_options_get_stats_dump_period_sec(o));
-
-    rocksdb_options_set_stats_persist_period_sec(copy, 600);
-    CheckCondition(600 == rocksdb_options_get_stats_persist_period_sec(copy));
-    CheckCondition(5 == rocksdb_options_get_stats_persist_period_sec(o));
-
-    rocksdb_options_set_advise_random_on_open(copy, 0);
-    CheckCondition(0 == rocksdb_options_get_advise_random_on_open(copy));
-    CheckCondition(1 == rocksdb_options_get_advise_random_on_open(o));
-
-    rocksdb_options_set_access_hint_on_compaction_start(copy, 2);
-    CheckCondition(2 ==
-                   rocksdb_options_get_access_hint_on_compaction_start(copy));
-    CheckCondition(3 == rocksdb_options_get_access_hint_on_compaction_start(o));
-
-    rocksdb_options_set_use_adaptive_mutex(copy, 0);
-    CheckCondition(0 == rocksdb_options_get_use_adaptive_mutex(copy));
-    CheckCondition(1 == rocksdb_options_get_use_adaptive_mutex(o));
-
-    rocksdb_options_set_bytes_per_sync(copy, 219);
-    CheckCondition(219 == rocksdb_options_get_bytes_per_sync(copy));
-    CheckCondition(19 == rocksdb_options_get_bytes_per_sync(o));
-
-    rocksdb_options_set_wal_bytes_per_sync(copy, 120);
-    CheckCondition(120 == rocksdb_options_get_wal_bytes_per_sync(copy));
-    CheckCondition(20 == rocksdb_options_get_wal_bytes_per_sync(o));
-
-    rocksdb_options_set_writable_file_max_buffer_size(copy, 121);
-    CheckCondition(121 ==
-                   rocksdb_options_get_writable_file_max_buffer_size(copy));
-    CheckCondition(21 == rocksdb_options_get_writable_file_max_buffer_size(o));
-
-    rocksdb_options_set_allow_concurrent_memtable_write(copy, 0);
-    CheckCondition(0 ==
-                   rocksdb_options_get_allow_concurrent_memtable_write(copy));
-    CheckCondition(1 == rocksdb_options_get_allow_concurrent_memtable_write(o));
-
-    rocksdb_options_set_enable_write_thread_adaptive_yield(copy, 0);
-    CheckCondition(
-        0 == rocksdb_options_get_enable_write_thread_adaptive_yield(copy));
-    CheckCondition(1 ==
-                   rocksdb_options_get_enable_write_thread_adaptive_yield(o));
-
-    rocksdb_options_set_max_sequential_skip_in_iterations(copy, 122);
-    CheckCondition(122 ==
-                   rocksdb_options_get_max_sequential_skip_in_iterations(copy));
-    CheckCondition(22 ==
-                   rocksdb_options_get_max_sequential_skip_in_iterations(o));
-
-    rocksdb_options_set_disable_auto_compactions(copy, 0);
-    CheckCondition(0 == rocksdb_options_get_disable_auto_compactions(copy));
-    CheckCondition(1 == rocksdb_options_get_disable_auto_compactions(o));
-
-    rocksdb_options_set_optimize_filters_for_hits(copy, 0);
-    CheckCondition(0 == rocksdb_options_get_optimize_filters_for_hits(copy));
-    CheckCondition(1 == rocksdb_options_get_optimize_filters_for_hits(o));
-
-    rocksdb_options_set_delete_obsolete_files_period_micros(copy, 123);
-    CheckCondition(
-        123 == rocksdb_options_get_delete_obsolete_files_period_micros(copy));
-    CheckCondition(23 ==
-                   rocksdb_options_get_delete_obsolete_files_period_micros(o));
-
-    rocksdb_options_set_memtable_prefix_bloom_size_ratio(copy, 4.0);
-    CheckCondition(4.0 ==
-                   rocksdb_options_get_memtable_prefix_bloom_size_ratio(copy));
-    CheckCondition(2.0 ==
-                   rocksdb_options_get_memtable_prefix_bloom_size_ratio(o));
-
-    rocksdb_options_set_max_compaction_bytes(copy, 124);
-    CheckCondition(124 == rocksdb_options_get_max_compaction_bytes(copy));
-    CheckCondition(24 == rocksdb_options_get_max_compaction_bytes(o));
-
-    rocksdb_options_set_memtable_huge_page_size(copy, 125);
-    CheckCondition(125 == rocksdb_options_get_memtable_huge_page_size(copy));
-    CheckCondition(25 == rocksdb_options_get_memtable_huge_page_size(o));
-
-    rocksdb_options_set_max_successive_merges(copy, 126);
-    CheckCondition(126 == rocksdb_options_get_max_successive_merges(copy));
-    CheckCondition(26 == rocksdb_options_get_max_successive_merges(o));
-
-    rocksdb_options_set_bloom_locality(copy, 127);
-    CheckCondition(127 == rocksdb_options_get_bloom_locality(copy));
-    CheckCondition(27 == rocksdb_options_get_bloom_locality(o));
-
-    rocksdb_options_set_inplace_update_support(copy, 0);
-    CheckCondition(0 == rocksdb_options_get_inplace_update_support(copy));
-    CheckCondition(1 == rocksdb_options_get_inplace_update_support(o));
-
-    rocksdb_options_set_inplace_update_num_locks(copy, 128);
-    CheckCondition(128 == rocksdb_options_get_inplace_update_num_locks(copy));
-    CheckCondition(28 == rocksdb_options_get_inplace_update_num_locks(o));
-
-    rocksdb_options_set_report_bg_io_stats(copy, 0);
-    CheckCondition(0 == rocksdb_options_get_report_bg_io_stats(copy));
-    CheckCondition(1 == rocksdb_options_get_report_bg_io_stats(o));
-
-    rocksdb_options_set_wal_recovery_mode(copy, 1);
-    CheckCondition(1 == rocksdb_options_get_wal_recovery_mode(copy));
-    CheckCondition(2 == rocksdb_options_get_wal_recovery_mode(o));
-
-    rocksdb_options_set_compression(copy, 4);
-    CheckCondition(4 == rocksdb_options_get_compression(copy));
-    CheckCondition(5 == rocksdb_options_get_compression(o));
-
-    rocksdb_options_set_bottommost_compression(copy, 3);
-    CheckCondition(3 == rocksdb_options_get_bottommost_compression(copy));
-    CheckCondition(4 == rocksdb_options_get_bottommost_compression(o));
-
-    rocksdb_options_set_compaction_style(copy, 1);
-    CheckCondition(1 == rocksdb_options_get_compaction_style(copy));
-    CheckCondition(2 == rocksdb_options_get_compaction_style(o));
-
-    rocksdb_options_set_atomic_flush(copy, 0);
-    CheckCondition(0 == rocksdb_options_get_atomic_flush(copy));
-    CheckCondition(1 == rocksdb_options_get_atomic_flush(o));
-
-    rocksdb_options_destroy(copy);
-    rocksdb_options_destroy(o);
-  }
-
-  StartPhase("read_options");
-  {
-    rocksdb_readoptions_t* ro;
-    ro = rocksdb_readoptions_create();
-
-    rocksdb_readoptions_set_verify_checksums(ro, 1);
-    CheckCondition(1 == rocksdb_readoptions_get_verify_checksums(ro));
-
-    rocksdb_readoptions_set_fill_cache(ro, 1);
-    CheckCondition(1 == rocksdb_readoptions_get_fill_cache(ro));
-
-    rocksdb_readoptions_set_read_tier(ro, 2);
-    CheckCondition(2 == rocksdb_readoptions_get_read_tier(ro));
-
-    rocksdb_readoptions_set_tailing(ro, 1);
-    CheckCondition(1 == rocksdb_readoptions_get_tailing(ro));
-
-    rocksdb_readoptions_set_readahead_size(ro, 100);
-    CheckCondition(100 == rocksdb_readoptions_get_readahead_size(ro));
-
-    rocksdb_readoptions_set_prefix_same_as_start(ro, 1);
-    CheckCondition(1 == rocksdb_readoptions_get_prefix_same_as_start(ro));
-
-    rocksdb_readoptions_set_pin_data(ro, 1);
-    CheckCondition(1 == rocksdb_readoptions_get_pin_data(ro));
-
-    rocksdb_readoptions_set_total_order_seek(ro, 1);
-    CheckCondition(1 == rocksdb_readoptions_get_total_order_seek(ro));
-
-    rocksdb_readoptions_set_max_skippable_internal_keys(ro, 200);
-    CheckCondition(200 ==
-                   rocksdb_readoptions_get_max_skippable_internal_keys(ro));
-
-    rocksdb_readoptions_set_background_purge_on_iterator_cleanup(ro, 1);
-    CheckCondition(
-        1 == rocksdb_readoptions_get_background_purge_on_iterator_cleanup(ro));
-
-    rocksdb_readoptions_set_ignore_range_deletions(ro, 1);
-    CheckCondition(1 == rocksdb_readoptions_get_ignore_range_deletions(ro));
-
-    rocksdb_readoptions_destroy(ro);
-  }
-
-  StartPhase("write_options");
-  {
-    rocksdb_writeoptions_t* wo;
-    wo = rocksdb_writeoptions_create();
-
-    rocksdb_writeoptions_set_sync(wo, 1);
-    CheckCondition(1 == rocksdb_writeoptions_get_sync(wo));
-
-    rocksdb_writeoptions_disable_WAL(wo, 1);
-    CheckCondition(1 == rocksdb_writeoptions_get_disable_WAL(wo));
-
-    rocksdb_writeoptions_set_ignore_missing_column_families(wo, 1);
-    CheckCondition(1 ==
-                   rocksdb_writeoptions_get_ignore_missing_column_families(wo));
-
-    rocksdb_writeoptions_set_no_slowdown(wo, 1);
-    CheckCondition(1 == rocksdb_writeoptions_get_no_slowdown(wo));
-
-    rocksdb_writeoptions_set_low_pri(wo, 1);
-    CheckCondition(1 == rocksdb_writeoptions_get_low_pri(wo));
-
-    rocksdb_writeoptions_set_memtable_insert_hint_per_batch(wo, 1);
-    CheckCondition(1 ==
-                   rocksdb_writeoptions_get_memtable_insert_hint_per_batch(wo));
-
-    rocksdb_writeoptions_destroy(wo);
-  }
-
-  StartPhase("compact_options");
-  {
-    rocksdb_compactoptions_t* co;
-    co = rocksdb_compactoptions_create();
-
-    rocksdb_compactoptions_set_exclusive_manual_compaction(co, 1);
-    CheckCondition(1 ==
-                   rocksdb_compactoptions_get_exclusive_manual_compaction(co));
-
-    rocksdb_compactoptions_set_bottommost_level_compaction(co, 1);
-    CheckCondition(1 ==
-                   rocksdb_compactoptions_get_bottommost_level_compaction(co));
-
-    rocksdb_compactoptions_set_change_level(co, 1);
-    CheckCondition(1 == rocksdb_compactoptions_get_change_level(co));
-
-    rocksdb_compactoptions_set_target_level(co, 1);
-    CheckCondition(1 == rocksdb_compactoptions_get_target_level(co));
-
-    rocksdb_compactoptions_destroy(co);
-  }
-
-  StartPhase("flush_options");
-  {
-    rocksdb_flushoptions_t* fo;
-    fo = rocksdb_flushoptions_create();
-
-    rocksdb_flushoptions_set_wait(fo, 1);
-    CheckCondition(1 == rocksdb_flushoptions_get_wait(fo));
-
-    rocksdb_flushoptions_destroy(fo);
-  }
-
-  StartPhase("cache_options");
-  {
-    rocksdb_cache_t* co;
-    co = rocksdb_cache_create_lru(100);
-    CheckCondition(100 == rocksdb_cache_get_capacity(co));
-
-    rocksdb_cache_set_capacity(co, 200);
-    CheckCondition(200 == rocksdb_cache_get_capacity(co));
-
-    rocksdb_cache_destroy(co);
-  }
-
  StartPhase("iterate_upper_bound");
  {
    // Create new empty database
@@ -2734,9 +1857,6 @@ int main(int argc, char** argv) {
    CheckNoError(err);
  }

-  StartPhase("cancel_all_background_work");
-  rocksdb_cancel_all_background_work(db, 1);
-
  StartPhase("cleanup");
  rocksdb_close(db);
  rocksdb_options_destroy(options);
@@ -12,7 +12,6 @@
 #include <algorithm>
 #include <cinttypes>
 #include <limits>
-#include <sstream>
 #include <string>
 #include <vector>

@@ -32,13 +31,12 @@
 #include "monitoring/thread_status_util.h"
 #include "options/options_helper.h"
 #include "port/port.h"
-#include "rocksdb/table.h"
+#include "table/block_based/block_based_table_factory.h"
 #include "table/merging_iterator.h"
 #include "util/autovector.h"
-#include "util/cast_util.h"
 #include "util/compression.h"

-namespace ROCKSDB_NAMESPACE {
+namespace rocksdb {

 ColumnFamilyHandleImpl::ColumnFamilyHandleImpl(
    ColumnFamilyData* column_family_data, DBImpl* db, InstrumentedMutex* mutex)
@@ -149,16 +147,6 @@ Status CheckCompressionSupported(const ColumnFamilyOptions& cf_options) {
          "should be nonzero if we're using zstd's dictionary generator.");
    }
  }
-
-  if (!CompressionTypeSupported(cf_options.blob_compression_type)) {
-    std::ostringstream oss;
-    oss << "The specified blob compression type "
-        << CompressionTypeToString(cf_options.blob_compression_type)
-        << " is not available.";
-
-    return Status::InvalidArgument(oss.str());
-  }
-
  return Status::OK();
 }

@@ -357,8 +345,8 @@ ColumnFamilyOptions SanitizeOptions(const ImmutableDBOptions& db_options,
    result.max_compaction_bytes = result.target_file_size_base * 25;
  }

-  bool is_block_based_table = (result.table_factory->IsInstanceOf(
-      TableFactory::kBlockBasedTableName()));
+  bool is_block_based_table =
+      (result.table_factory->Name() == BlockBasedTableFactory().Name());

  const uint64_t kAdjustedTtl = 30 * 24 * 60 * 60;
  if (result.ttl == kDefaultTtl) {
@@ -483,24 +471,12 @@ void SuperVersionUnrefHandle(void* ptr) {
 }
 }  // anonymous namespace

-std::vector<std::string> ColumnFamilyData::GetDbPaths() const {
-  std::vector<std::string> paths;
-  paths.reserve(ioptions_.cf_paths.size());
-  for (const DbPath& db_path : ioptions_.cf_paths) {
-    paths.emplace_back(db_path.path);
-  }
-  return paths;
-}
-
-const uint32_t ColumnFamilyData::kDummyColumnFamilyDataId = port::kMaxUint32;
-
 ColumnFamilyData::ColumnFamilyData(
    uint32_t id, const std::string& name, Version* _dummy_versions,
    Cache* _table_cache, WriteBufferManager* write_buffer_manager,
    const ColumnFamilyOptions& cf_options, const ImmutableDBOptions& db_options,
    const FileOptions& file_options, ColumnFamilySet* column_family_set,
-    BlockCacheTracer* const block_cache_tracer,
-    const std::shared_ptr<IOTracer>& io_tracer)
+    BlockCacheTracer* const block_cache_tracer)
    : id_(id),
      name_(name),
      dummy_versions_(_dummy_versions),
@@ -531,23 +507,7 @@ ColumnFamilyData::ColumnFamilyData(
      queued_for_compaction_(false),
      prev_compaction_needed_bytes_(0),
      allow_2pc_(db_options.allow_2pc),
-      last_memtable_id_(0),
-      db_paths_registered_(false) {
-  if (id_ != kDummyColumnFamilyDataId) {
-    // TODO(cc): RegisterDbPaths can be expensive, considering moving it
-    // outside of this constructor which might be called with db mutex held.
-    // TODO(cc): considering using ioptions_.fs, currently some tests rely on
-    // EnvWrapper, that's the main reason why we use env here.
-    Status s = ioptions_.env->RegisterDbPaths(GetDbPaths());
-    if (s.ok()) {
-      db_paths_registered_ = true;
-    } else {
-      ROCKS_LOG_ERROR(
-          ioptions_.info_log,
-          "Failed to register data paths of column family (id: %d, name: %s)",
-          id_, name_.c_str());
-    }
-  }
+      last_memtable_id_(0) {
  Ref();

  // Convert user defined table properties collector factories to internal ones.
@@ -558,7 +518,7 @@ ColumnFamilyData::ColumnFamilyData(
    internal_stats_.reset(
        new InternalStats(ioptions_.num_levels, db_options.env, this));
    table_cache_.reset(new TableCache(ioptions_, file_options, _table_cache,
-                                      block_cache_tracer, io_tracer));
+                                      block_cache_tracer));
    if (ioptions_.compaction_style == kCompactionStyleLevel) {
      compaction_picker_.reset(
          new LevelCompactionPicker(ioptions_, &internal_comparator_));
@@ -641,18 +601,6 @@ ColumnFamilyData::~ColumnFamilyData() {
  for (MemTable* m : to_delete) {
    delete m;
  }
-
-  if (db_paths_registered_) {
-    // TODO(cc): considering using ioptions_.fs, currently some tests rely on
-    // EnvWrapper, that's the main reason why we use env here.
-    Status s = ioptions_.env->UnregisterDbPaths(GetDbPaths());
-    if (!s.ok()) {
-      ROCKS_LOG_ERROR(
-          ioptions_.info_log,
-          "Failed to unregister data paths of column family (id: %d, name: %s)",
-          id_, name_.c_str());
-    }
-  }
 }

 bool ColumnFamilyData::UnrefAndTryDelete() {
@@ -1055,19 +1003,17 @@ void ColumnFamilyData::CreateNewMemtable(
 }

 bool ColumnFamilyData::NeedsCompaction() const {
-  return !mutable_cf_options_.disable_auto_compactions &&
-         compaction_picker_->NeedsCompaction(current_->storage_info());
+  return compaction_picker_->NeedsCompaction(current_->storage_info());
 }

 Compaction* ColumnFamilyData::PickCompaction(
-    const MutableCFOptions& mutable_options,
-    const MutableDBOptions& mutable_db_options, LogBuffer* log_buffer) {
+    const MutableCFOptions& mutable_options, LogBuffer* log_buffer) {
  SequenceNumber earliest_mem_seqno =
      std::min(mem_->GetEarliestSequenceNumber(),
               imm_.current()->GetEarliestSequenceNumber(false));
  auto* result = compaction_picker_->PickCompaction(
-      GetName(), mutable_options, mutable_db_options, current_->storage_info(),
-      log_buffer, earliest_mem_seqno);
+      GetName(), mutable_options, current_->storage_info(), log_buffer,
+      earliest_mem_seqno);
  if (result != nullptr) {
    result->SetInputVersion(current_);
  }
@@ -1102,12 +1048,10 @@ Status ColumnFamilyData::RangesOverlapWithMemtables(
      super_version->mem->NewRangeTombstoneIterator(read_opts, read_seq);
  range_del_agg.AddTombstones(
      std::unique_ptr<FragmentedRangeTombstoneIterator>(active_range_del_iter));
-  Status status;
-  status = super_version->imm->AddRangeTombstoneIterators(
-      read_opts, nullptr /* arena */, &range_del_agg);
-  // AddRangeTombstoneIterators always return Status::OK.
-  assert(status.ok());
+  super_version->imm->AddRangeTombstoneIterators(read_opts, nullptr /* arena */,
+                                                 &range_del_agg);

+  Status status;
  for (size_t i = 0; i < ranges.size() && status.ok() && !*overlap; ++i) {
    auto* vstorage = super_version->current->storage_info();
    auto* ucmp = vstorage->InternalComparator()->user_comparator();
@@ -1118,8 +1062,7 @@ Status ColumnFamilyData::RangesOverlapWithMemtables(
    ParsedInternalKey seek_result;
    if (status.ok()) {
      if (memtable_iter->Valid() &&
-          ParseInternalKey(memtable_iter->key(), &seek_result) !=
-              Status::OK()) {
+          !ParseInternalKey(memtable_iter->key(), &seek_result)) {
        status = Status::Corruption("DB have corrupted keys");
      }
    }
@@ -1140,16 +1083,14 @@ const int ColumnFamilyData::kCompactAllLevels = -1;
 const int ColumnFamilyData::kCompactToBaseLevel = -2;

 Compaction* ColumnFamilyData::CompactRange(
-    const MutableCFOptions& mutable_cf_options,
-    const MutableDBOptions& mutable_db_options, int input_level,
+    const MutableCFOptions& mutable_cf_options, int input_level,
    int output_level, const CompactRangeOptions& compact_range_options,
    const InternalKey* begin, const InternalKey* end,
    InternalKey** compaction_end, bool* conflict,
    uint64_t max_file_num_to_ignore) {
  auto* result = compaction_picker_->CompactRange(
-      GetName(), mutable_cf_options, mutable_db_options,
-      current_->storage_info(), input_level, output_level,
-      compact_range_options, begin, end, compaction_end, conflict,
+      GetName(), mutable_cf_options, current_->storage_info(), input_level,
+      output_level, compact_range_options, begin, end, compaction_end, conflict,
      max_file_num_to_ignore);
  if (result != nullptr) {
    result->SetInputVersion(current_);
@@ -1319,8 +1260,7 @@ Status ColumnFamilyData::ValidateOptions(
  }

  if (cf_options.ttl > 0 && cf_options.ttl != kDefaultTtl) {
-    if (!cf_options.table_factory->IsInstanceOf(
-            TableFactory::kBlockBasedTableName())) {
+    if (cf_options.table_factory->Name() != BlockBasedTableFactory().Name()) {
      return Status::NotSupported(
          "TTL is only supported in Block-Based Table format. ");
    }
@@ -1328,8 +1268,7 @@ Status ColumnFamilyData::ValidateOptions(

  if (cf_options.periodic_compaction_seconds > 0 &&
      cf_options.periodic_compaction_seconds != kDefaultPeriodicCompSecs) {
-    if (!cf_options.table_factory->IsInstanceOf(
-            TableFactory::kBlockBasedTableName())) {
+    if (cf_options.table_factory->Name() != BlockBasedTableFactory().Name()) {
      return Status::NotSupported(
          "Periodic Compaction is only supported in "
          "Block-Based Table format. ");
@@ -1381,32 +1320,23 @@ Env::WriteLifeTimeHint ColumnFamilyData::CalculateSSTWriteHint(int level) {
                            static_cast<int>(Env::WLTH_MEDIUM));
 }

-Status ColumnFamilyData::AddDirectories(
-    std::map<std::string, std::shared_ptr<FSDirectory>>* created_dirs) {
+Status ColumnFamilyData::AddDirectories() {
  Status s;
-  assert(created_dirs != nullptr);
  assert(data_dirs_.empty());
  for (auto& p : ioptions_.cf_paths) {
-    auto existing_dir = created_dirs->find(p.path);
-
-    if (existing_dir == created_dirs->end()) {
-      std::unique_ptr<FSDirectory> path_directory;
-      s = DBImpl::CreateAndNewDirectory(ioptions_.fs, p.path, &path_directory);
-      if (!s.ok()) {
-        return s;
-      }
-      assert(path_directory != nullptr);
-      data_dirs_.emplace_back(path_directory.release());
-      (*created_dirs)[p.path] = data_dirs_.back();
-    } else {
-      data_dirs_.emplace_back(existing_dir->second);
+    std::unique_ptr<Directory> path_directory;
+    s = DBImpl::CreateAndNewDirectory(ioptions_.env, p.path, &path_directory);
+    if (!s.ok()) {
+      return s;
    }
+    assert(path_directory != nullptr);
+    data_dirs_.emplace_back(path_directory.release());
  }
  assert(data_dirs_.size() == ioptions_.cf_paths.size());
  return s;
 }

-FSDirectory* ColumnFamilyData::GetDataDir(size_t path_id) const {
+Directory* ColumnFamilyData::GetDataDir(size_t path_id) const {
  if (data_dirs_.empty()) {
    return nullptr;
  }
@@ -1419,24 +1349,21 @@ ColumnFamilySet::ColumnFamilySet(const std::string& dbname,
                                 const ImmutableDBOptions* db_options,
                                 const FileOptions& file_options,
                                 Cache* table_cache,
-                                 WriteBufferManager* _write_buffer_manager,
-                                 WriteController* _write_controller,
-                                 BlockCacheTracer* const block_cache_tracer,
-                                 const std::shared_ptr<IOTracer>& io_tracer)
+                                 WriteBufferManager* write_buffer_manager,
+                                 WriteController* write_controller,
+                                 BlockCacheTracer* const block_cache_tracer)
    : max_column_family_(0),
      dummy_cfd_(new ColumnFamilyData(
-          ColumnFamilyData::kDummyColumnFamilyDataId, "", nullptr, nullptr,
-          nullptr, ColumnFamilyOptions(), *db_options, file_options, nullptr,
-          block_cache_tracer, io_tracer)),
+          0, "", nullptr, nullptr, nullptr, ColumnFamilyOptions(), *db_options,
+          file_options, nullptr, block_cache_tracer)),
      default_cfd_cache_(nullptr),
      db_name_(dbname),
      db_options_(db_options),
      file_options_(file_options),
      table_cache_(table_cache),
-      write_buffer_manager_(_write_buffer_manager),
-      write_controller_(_write_controller),
-      block_cache_tracer_(block_cache_tracer),
-      io_tracer_(io_tracer) {
+      write_buffer_manager_(write_buffer_manager),
+      write_controller_(write_controller),
+      block_cache_tracer_(block_cache_tracer) {
  // initialize linked list
  dummy_cfd_->prev_ = dummy_cfd_;
  dummy_cfd_->next_ = dummy_cfd_;
@@ -1502,7 +1429,7 @@ ColumnFamilyData* ColumnFamilySet::CreateColumnFamily(
  assert(column_families_.find(name) == column_families_.end());
  ColumnFamilyData* new_cfd = new ColumnFamilyData(
      id, name, dummy_versions, table_cache_, write_buffer_manager_, options,
-      *db_options_, file_options_, this, block_cache_tracer_, io_tracer_);
+      *db_options_, file_options_, this, block_cache_tracer_);
  column_families_.insert({name, id});
  column_family_data_.insert({id, new_cfd});
  max_column_family_ = std::max(max_column_family_, id);
@@ -1570,7 +1497,7 @@ ColumnFamilyHandle* ColumnFamilyMemTablesImpl::GetColumnFamilyHandle() {
 uint32_t GetColumnFamilyID(ColumnFamilyHandle* column_family) {
  uint32_t column_family_id = 0;
  if (column_family != nullptr) {
-    auto cfh = static_cast_with_check<ColumnFamilyHandleImpl>(column_family);
+    auto cfh = reinterpret_cast<ColumnFamilyHandleImpl*>(column_family);
    column_family_id = cfh->GetID();
  }
  return column_family_id;
@@ -1584,4 +1511,4 @@ const Comparator* GetColumnFamilyUserComparator(
  return nullptr;
 }

-}  // namespace ROCKSDB_NAMESPACE
+}  // namespace rocksdb
@@ -27,7 +27,7 @@
 #include "trace_replay/block_cache_tracer.h"
 #include "util/thread_local.h"

-namespace ROCKSDB_NAMESPACE {
+namespace rocksdb {

 class Version;
 class VersionSet;
@@ -387,7 +387,6 @@ class ColumnFamilyData {
  bool NeedsCompaction() const;
  // REQUIRES: DB mutex held
  Compaction* PickCompaction(const MutableCFOptions& mutable_options,
-                             const MutableDBOptions& mutable_db_options,
                             LogBuffer* log_buffer);

  // Check if the passed range overlap with any running compactions.
@@ -413,7 +412,6 @@ class ColumnFamilyData {
  static const int kCompactToBaseLevel;
  // REQUIRES: DB mutex held
  Compaction* CompactRange(const MutableCFOptions& mutable_cf_options,
-                           const MutableDBOptions& mutable_db_options,
                           int input_level, int output_level,
                           const CompactRangeOptions& compact_range_options,
                           const InternalKey* begin, const InternalKey* end,
@@ -499,18 +497,14 @@ class ColumnFamilyData {

  Env::WriteLifeTimeHint CalculateSSTWriteHint(int level);

-  // created_dirs remembers directory created, so that we don't need to call
-  // the same data creation operation again.
-  Status AddDirectories(
-      std::map<std::string, std::shared_ptr<FSDirectory>>* created_dirs);
+  Status AddDirectories();

-  FSDirectory* GetDataDir(size_t path_id) const;
+  Directory* GetDataDir(size_t path_id) const;

  ThreadLocalPtr* TEST_GetLocalSV() { return local_sv_.get(); }

 private:
  friend class ColumnFamilySet;
-  static const uint32_t kDummyColumnFamilyDataId;
  ColumnFamilyData(uint32_t id, const std::string& name,
                   Version* dummy_versions, Cache* table_cache,
                   WriteBufferManager* write_buffer_manager,
@@ -518,10 +512,7 @@ class ColumnFamilyData {
                   const ImmutableDBOptions& db_options,
                   const FileOptions& file_options,
                   ColumnFamilySet* column_family_set,
-                   BlockCacheTracer* const block_cache_tracer,
-                   const std::shared_ptr<IOTracer>& io_tracer);
-
-  std::vector<std::string> GetDbPaths() const;
+                   BlockCacheTracer* const block_cache_tracer);

  uint32_t id_;
  const std::string name_;
@@ -598,9 +589,7 @@ class ColumnFamilyData {
  std::atomic<uint64_t> last_memtable_id_;

  // Directories corresponding to cf_paths.
-  std::vector<std::shared_ptr<FSDirectory>> data_dirs_;
-
-  bool db_paths_registered_;
+  std::vector<std::unique_ptr<Directory>> data_dirs_;
 };

 // ColumnFamilySet has interesting thread-safety requirements
@@ -650,10 +639,9 @@ class ColumnFamilySet {
  ColumnFamilySet(const std::string& dbname,
                  const ImmutableDBOptions* db_options,
                  const FileOptions& file_options, Cache* table_cache,
-                  WriteBufferManager* _write_buffer_manager,
-                  WriteController* _write_controller,
-                  BlockCacheTracer* const block_cache_tracer,
-                  const std::shared_ptr<IOTracer>& io_tracer);
+                  WriteBufferManager* write_buffer_manager,
+                  WriteController* write_controller,
+                  BlockCacheTracer* const block_cache_tracer);
  ~ColumnFamilySet();

  ColumnFamilyData* GetDefault() const;
@@ -682,10 +670,6 @@ class ColumnFamilySet {

  Cache* get_table_cache() { return table_cache_; }

-  WriteBufferManager* write_buffer_manager() { return write_buffer_manager_; }
-
-  WriteController* write_controller() { return write_controller_; }
-
 private:
  friend class ColumnFamilyData;
  // helper function that gets called from cfd destructor
@@ -717,7 +701,6 @@ class ColumnFamilySet {
  WriteBufferManager* write_buffer_manager_;
  WriteController* write_controller_;
  BlockCacheTracer* const block_cache_tracer_;
-  std::shared_ptr<IOTracer> io_tracer_;
 };

 // We use ColumnFamilyMemTablesImpl to provide WriteBatch a way to access
@@ -768,4 +751,4 @@ extern uint32_t GetColumnFamilyID(ColumnFamilyHandle* column_family);
 extern const Comparator* GetColumnFamilyUserComparator(
    ColumnFamilyHandle* column_family);

-}  // namespace ROCKSDB_NAMESPACE
+}  // namespace rocksdb
@@ -8,32 +8,40 @@
 // found in the LICENSE file. See the AUTHORS file for names of contributors.

 #include <algorithm>
+#include <vector>
 #include <string>
 #include <thread>
-#include <vector>

 #include "db/db_impl/db_impl.h"
 #include "db/db_test_util.h"
+#include "memtable/hash_skiplist_rep.h"
 #include "options/options_parser.h"
 #include "port/port.h"
 #include "port/stack_trace.h"
-#include "rocksdb/convenience.h"
 #include "rocksdb/db.h"
 #include "rocksdb/env.h"
 #include "rocksdb/iterator.h"
 #include "rocksdb/utilities/object_registry.h"
+#include "test_util/fault_injection_test_env.h"
 #include "test_util/sync_point.h"
 #include "test_util/testharness.h"
 #include "test_util/testutil.h"
 #include "util/coding.h"
 #include "util/string_util.h"
-#include "utilities/fault_injection_env.h"
 #include "utilities/merge_operators.h"

-namespace ROCKSDB_NAMESPACE {
+namespace rocksdb {

 static const int kValueSize = 1000;

+namespace {
+std::string RandomString(Random* rnd, int len) {
+  std::string r;
+  test::RandomString(rnd, len, &r);
+  return r;
+}
+}  // anonymous namespace
+
 // counts how many operations were performed
 class EnvCounter : public EnvWrapper {
 public:
@@ -79,16 +87,11 @@ class ColumnFamilyTestBase : public testing::Test {
    std::vector<ColumnFamilyDescriptor> column_families;
    for (auto h : handles_) {
      ColumnFamilyDescriptor cfdescriptor;
-      Status s = h->GetDescriptor(&cfdescriptor);
-#ifdef ROCKSDB_LITE
-      EXPECT_TRUE(s.IsNotSupported());
-#else
-      EXPECT_OK(s);
-#endif  // ROCKSDB_LITE
+      h->GetDescriptor(&cfdescriptor);
      column_families.push_back(cfdescriptor);
    }
    Close();
-    ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->DisableProcessing();
+    rocksdb::SyncPoint::GetInstance()->DisableProcessing();
    Destroy(column_families);
    delete env_;
  }
@@ -106,11 +109,11 @@ class ColumnFamilyTestBase : public testing::Test {
      // preserves the implementation that was in place when all of the
      // magic values in this file were picked.
      *storage = std::string(kValueSize, ' ');
+      return Slice(*storage);
    } else {
      Random r(k);
-      *storage = r.RandomString(kValueSize);
+      return test::RandomString(&r, kValueSize, storage);
    }
-    return Slice(*storage);
  }

  void Build(int base, int n, int flush_every = 0) {
@@ -119,7 +122,7 @@ class ColumnFamilyTestBase : public testing::Test {

    for (int i = 0; i < n; i++) {
      if (flush_every != 0 && i != 0 && i % flush_every == 0) {
-        DBImpl* dbi = static_cast_with_check<DBImpl>(db_);
+        DBImpl* dbi = reinterpret_cast<DBImpl*>(db_);
        dbi->TEST_FlushMemTable();
      }

@@ -173,7 +176,7 @@ class ColumnFamilyTestBase : public testing::Test {
  void Close() {
    for (auto h : handles_) {
      if (h) {
-        ASSERT_OK(db_->DestroyColumnFamilyHandle(h));
+        db_->DestroyColumnFamilyHandle(h);
      }
    }
    handles_.clear();
@@ -224,7 +227,7 @@ class ColumnFamilyTestBase : public testing::Test {
    Open({"default"});
  }

-  DBImpl* dbfull() { return static_cast_with_check<DBImpl>(db_); }
+  DBImpl* dbfull() { return reinterpret_cast<DBImpl*>(db_); }

  int GetProperty(int cf, std::string property) {
    std::string value;
@@ -284,11 +287,7 @@ class ColumnFamilyTestBase : public testing::Test {
      // Verify the CF options of the returned CF handle.
      ColumnFamilyDescriptor desc;
      ASSERT_OK(handles_[cfi]->GetDescriptor(&desc));
-      // Need to sanitize the default column family options before comparing
-      // them.
-      ASSERT_OK(RocksDBOptionsParser::VerifyCFOptions(
-          ConfigOptions(), desc.options,
-          SanitizeOptions(dbfull()->immutable_db_options(), current_cf_opt)));
+      RocksDBOptionsParser::VerifyCFOptions(desc.options, current_cf_opt);
 #endif  // !ROCKSDB_LITE
      cfi++;
    }
@@ -314,7 +313,7 @@ class ColumnFamilyTestBase : public testing::Test {
  void DropColumnFamilies(const std::vector<int>& cfs) {
    for (auto cf : cfs) {
      ASSERT_OK(db_->DropColumnFamily(handles_[cf]));
-      ASSERT_OK(db_->DestroyColumnFamilyHandle(handles_[cf]));
+      db_->DestroyColumnFamilyHandle(handles_[cf]);
      handles_[cf] = nullptr;
      names_[cf] = "";
    }
@@ -328,14 +327,14 @@ class ColumnFamilyTestBase : public testing::Test {
      // 10 bytes for key, rest is value
      if (!save) {
        ASSERT_OK(Put(cf, test::RandomKey(&rnd_, 11),
-                      rnd_.RandomString(key_value_size - 10)));
+                      RandomString(&rnd_, key_value_size - 10)));
      } else {
        std::string key = test::RandomKey(&rnd_, 11);
        keys_[cf].insert(key);
-        ASSERT_OK(Put(cf, key, rnd_.RandomString(key_value_size - 10)));
+        ASSERT_OK(Put(cf, key, RandomString(&rnd_, key_value_size - 10)));
      }
    }
-    ASSERT_OK(db_->FlushWAL(/*sync=*/false));
+    db_->FlushWAL(false);
  }

 #ifndef ROCKSDB_LITE  // TEST functions in DB are not supported in lite
@@ -569,7 +568,7 @@ TEST_P(ColumnFamilyTest, DontReuseColumnFamilyID) {
    Open();
    CreateColumnFamilies({"one", "two", "three"});
    for (size_t i = 0; i < handles_.size(); ++i) {
-      auto cfh = static_cast_with_check<ColumnFamilyHandleImpl>(handles_[i]);
+      auto cfh = reinterpret_cast<ColumnFamilyHandleImpl*>(handles_[i]);
      ASSERT_EQ(i, cfh->GetID());
    }
    if (iter == 1) {
@@ -585,7 +584,7 @@ TEST_P(ColumnFamilyTest, DontReuseColumnFamilyID) {
    CreateColumnFamilies({"three2"});
    // ID 3 that was used for dropped column family "three" should not be
    // reused
-    auto cfh3 = static_cast_with_check<ColumnFamilyHandleImpl>(handles_[3]);
+    auto cfh3 = reinterpret_cast<ColumnFamilyHandleImpl*>(handles_[3]);
    ASSERT_EQ(4U, cfh3->GetID());
    Close();
    Destroy();
@@ -596,15 +595,14 @@ TEST_P(ColumnFamilyTest, DontReuseColumnFamilyID) {
 TEST_P(ColumnFamilyTest, CreateCFRaceWithGetAggProperty) {
  Open();

-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->LoadDependency(
+  rocksdb::SyncPoint::GetInstance()->LoadDependency(
      {{"DBImpl::WriteOptionsFile:1",
        "ColumnFamilyTest.CreateCFRaceWithGetAggProperty:1"},
       {"ColumnFamilyTest.CreateCFRaceWithGetAggProperty:2",
        "DBImpl::WriteOptionsFile:2"}});
-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing();
+  rocksdb::SyncPoint::GetInstance()->EnableProcessing();

-  ROCKSDB_NAMESPACE::port::Thread thread(
-      [&] { CreateColumnFamilies({"one"}); });
+  rocksdb::port::Thread thread([&] { CreateColumnFamilies({"one"}); });

  TEST_SYNC_POINT("ColumnFamilyTest.CreateCFRaceWithGetAggProperty:1");
  uint64_t pv;
@@ -613,7 +611,7 @@ TEST_P(ColumnFamilyTest, CreateCFRaceWithGetAggProperty) {

  thread.join();

-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->DisableProcessing();
+  rocksdb::SyncPoint::GetInstance()->DisableProcessing();
 }
 #endif  // !ROCKSDB_LITE

@@ -657,7 +655,7 @@ TEST_P(FlushEmptyCFTestWithParam, FlushEmptyCFTest) {
  Flush(0);
  ASSERT_OK(Put(1, "bar", "v3"));  // seqID 4
  ASSERT_OK(Put(1, "foo", "v4"));  // seqID 5
-  ASSERT_OK(db_->FlushWAL(/*sync=*/false));
+  db_->FlushWAL(false);

  // Preserve file system state up to here to simulate a crash condition.
  fault_env->SetFilesystemActive(false);
@@ -720,7 +718,7 @@ TEST_P(FlushEmptyCFTestWithParam, FlushEmptyCFTest2) {
  // Write to log file D
  ASSERT_OK(Put(1, "bar", "v4"));  // seqID 7
  ASSERT_OK(Put(1, "bar", "v5"));  // seqID 8
-  ASSERT_OK(db_->FlushWAL(/*sync=*/false));
+  db_->FlushWAL(false);
  // Preserve file system state up to here to simulate a crash condition.
  fault_env->SetFilesystemActive(false);
  std::vector<std::string> names;
@@ -822,7 +820,7 @@ TEST_P(ColumnFamilyTest, BulkAddDrop) {
 }

 TEST_P(ColumnFamilyTest, DropTest) {
-  // first iteration - don't reopen DB before dropping
+  // first iteration - dont reopen DB before dropping
  // second iteration - reopen DB before dropping
  for (int iter = 0; iter < 2; ++iter) {
    Open({"default"});
@@ -849,15 +847,13 @@ TEST_P(ColumnFamilyTest, WriteBatchFailure) {
  Open();
  CreateColumnFamiliesAndReopen({"one", "two"});
  WriteBatch batch;
-  ASSERT_OK(batch.Put(handles_[0], Slice("existing"), Slice("column-family")));
-  ASSERT_OK(
-      batch.Put(handles_[1], Slice("non-existing"), Slice("column-family")));
+  batch.Put(handles_[0], Slice("existing"), Slice("column-family"));
+  batch.Put(handles_[1], Slice("non-existing"), Slice("column-family"));
  ASSERT_OK(db_->Write(WriteOptions(), &batch));
  DropColumnFamilies({1});
  WriteOptions woptions_ignore_missing_cf;
  woptions_ignore_missing_cf.ignore_missing_column_families = true;
-  ASSERT_OK(
-      batch.Put(handles_[0], Slice("still here"), Slice("column-family")));
+  batch.Put(handles_[0], Slice("still here"), Slice("column-family"));
  ASSERT_OK(db_->Write(woptions_ignore_missing_cf, &batch));
  ASSERT_EQ("column-family", Get(0, "still here"));
  Status s = db_->Write(WriteOptions(), &batch);
@@ -896,10 +892,10 @@ TEST_P(ColumnFamilyTest, IgnoreRecoveredLog) {
  ASSERT_OK(env_->CreateDirIfMissing(dbname_));
  ASSERT_OK(env_->CreateDirIfMissing(backup_logs));
  std::vector<std::string> old_files;
-  ASSERT_OK(env_->GetChildren(backup_logs, &old_files));
+  env_->GetChildren(backup_logs, &old_files);
  for (auto& file : old_files) {
    if (file != "." && file != "..") {
-      ASSERT_OK(env_->DeleteFile(backup_logs + "/" + file));
+      env_->DeleteFile(backup_logs + "/" + file);
    }
  }

@@ -927,7 +923,7 @@ TEST_P(ColumnFamilyTest, IgnoreRecoveredLog) {

  // copy the logs to backup
  std::vector<std::string> logs;
-  ASSERT_OK(env_->GetChildren(db_options_.wal_dir, &logs));
+  env_->GetChildren(db_options_.wal_dir, &logs);
  for (auto& log : logs) {
    if (log != ".." && log != ".") {
      CopyFile(db_options_.wal_dir + "/" + log, backup_logs + "/" + log);
@@ -992,7 +988,6 @@ TEST_P(ColumnFamilyTest, FlushTest) {
    ASSERT_OK(Put(0, "foofoo", "bar"));

    for (auto* it : iterators) {
-      ASSERT_OK(it->status());
      delete it;
    }
  }
@@ -1090,8 +1085,8 @@ TEST_P(ColumnFamilyTest, CrashAfterFlush) {
  CreateColumnFamilies({"one"});

  WriteBatch batch;
-  ASSERT_OK(batch.Put(handles_[0], Slice("foo"), Slice("bar")));
-  ASSERT_OK(batch.Put(handles_[1], Slice("foo"), Slice("bar")));
+  batch.Put(handles_[0], Slice("foo"), Slice("bar"));
+  batch.Put(handles_[1], Slice("foo"), Slice("bar"));
  ASSERT_OK(db_->Write(WriteOptions(), &batch));
  Flush(0);
  fault_env->SetFilesystemActive(false);
@@ -1258,14 +1253,13 @@ TEST_P(ColumnFamilyTest, DifferentWriteBufferSizes) {
 // #endif  // !ROCKSDB_LITE

 class TestComparator : public Comparator {
-  int Compare(const ROCKSDB_NAMESPACE::Slice& /*a*/,
-              const ROCKSDB_NAMESPACE::Slice& /*b*/) const override {
+  int Compare(const rocksdb::Slice& /*a*/,
+              const rocksdb::Slice& /*b*/) const override {
    return 0;
  }
  const char* Name() const override { return "Test"; }
-  void FindShortestSeparator(
-      std::string* /*start*/,
-      const ROCKSDB_NAMESPACE::Slice& /*limit*/) const override {}
+  void FindShortestSeparator(std::string* /*start*/,
+                             const rocksdb::Slice& /*limit*/) const override {}
  void FindShortSuccessor(std::string* /*key*/) const override {}
 };

@@ -1433,11 +1427,11 @@ TEST_P(ColumnFamilyTest, MultipleManualCompactions) {
    AssertFilesPerLevel(ToString(i + 1), 1);
  }
  bool cf_1_1 = true;
-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->LoadDependency(
+  rocksdb::SyncPoint::GetInstance()->LoadDependency(
      {{"ColumnFamilyTest::MultiManual:4", "ColumnFamilyTest::MultiManual:1"},
       {"ColumnFamilyTest::MultiManual:2", "ColumnFamilyTest::MultiManual:5"},
       {"ColumnFamilyTest::MultiManual:2", "ColumnFamilyTest::MultiManual:3"}});
-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->SetCallBack(
+  rocksdb::SyncPoint::GetInstance()->SetCallBack(
      "DBImpl::BackgroundCompaction:NonTrivial:AfterRun", [&](void* /*arg*/) {
        if (cf_1_1) {
          TEST_SYNC_POINT("ColumnFamilyTest::MultiManual:4");
@@ -1446,7 +1440,7 @@ TEST_P(ColumnFamilyTest, MultipleManualCompactions) {
        }
      });

-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing();
+  rocksdb::SyncPoint::GetInstance()->EnableProcessing();
  std::vector<port::Thread> threads;
  threads.emplace_back([&] {
    CompactRangeOptions compact_options;
@@ -1489,8 +1483,8 @@ TEST_P(ColumnFamilyTest, MultipleManualCompactions) {
    ASSERT_NE("NOT_FOUND", Get(1, *key_iter));
    key_iter++;
  }
-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->DisableProcessing();
-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->ClearAllCallBacks();
+  rocksdb::SyncPoint::GetInstance()->DisableProcessing();
+  rocksdb::SyncPoint::GetInstance()->ClearAllCallBacks();
  Close();
 }

@@ -1529,11 +1523,11 @@ TEST_P(ColumnFamilyTest, AutomaticAndManualCompactions) {
      dbfull()->TEST_write_controler().GetCompactionPressureToken();

  bool cf_1_1 = true;
-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->LoadDependency(
+  rocksdb::SyncPoint::GetInstance()->LoadDependency(
      {{"ColumnFamilyTest::AutoManual:4", "ColumnFamilyTest::AutoManual:1"},
       {"ColumnFamilyTest::AutoManual:2", "ColumnFamilyTest::AutoManual:5"},
       {"ColumnFamilyTest::AutoManual:2", "ColumnFamilyTest::AutoManual:3"}});
-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->SetCallBack(
+  rocksdb::SyncPoint::GetInstance()->SetCallBack(
      "DBImpl::BackgroundCompaction:NonTrivial:AfterRun", [&](void* /*arg*/) {
        if (cf_1_1) {
          cf_1_1 = false;
@@ -1541,7 +1535,7 @@ TEST_P(ColumnFamilyTest, AutomaticAndManualCompactions) {
          TEST_SYNC_POINT("ColumnFamilyTest::AutoManual:3");
        }
      });
-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing();
+  rocksdb::SyncPoint::GetInstance()->EnableProcessing();
  // SETUP column family "one" -- universal style
  for (int i = 0; i < one.level0_file_num_compaction_trigger; ++i) {
    PutRandomData(1, 10, 12000, true);
@@ -1559,7 +1553,7 @@ TEST_P(ColumnFamilyTest, AutomaticAndManualCompactions) {
    WaitForFlush(2);
    AssertFilesPerLevel(ToString(i + 1), 2);
  }
-  ROCKSDB_NAMESPACE::port::Thread threads([&] {
+  rocksdb::port::Thread threads([&] {
    CompactRangeOptions compact_options;
    compact_options.exclusive_manual_compaction = false;
    ASSERT_OK(
@@ -1586,8 +1580,8 @@ TEST_P(ColumnFamilyTest, AutomaticAndManualCompactions) {
    ASSERT_NE("NOT_FOUND", Get(1, *key_iter));
    key_iter++;
  }
-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->DisableProcessing();
-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->ClearAllCallBacks();
+  rocksdb::SyncPoint::GetInstance()->DisableProcessing();
+  rocksdb::SyncPoint::GetInstance()->ClearAllCallBacks();
 }

 TEST_P(ColumnFamilyTest, ManualAndAutomaticCompactions) {
@@ -1633,11 +1627,11 @@ TEST_P(ColumnFamilyTest, ManualAndAutomaticCompactions) {
  }
  bool cf_1_1 = true;
  bool cf_1_2 = true;
-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->LoadDependency(
+  rocksdb::SyncPoint::GetInstance()->LoadDependency(
      {{"ColumnFamilyTest::ManualAuto:4", "ColumnFamilyTest::ManualAuto:1"},
       {"ColumnFamilyTest::ManualAuto:5", "ColumnFamilyTest::ManualAuto:2"},
       {"ColumnFamilyTest::ManualAuto:2", "ColumnFamilyTest::ManualAuto:3"}});
-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->SetCallBack(
+  rocksdb::SyncPoint::GetInstance()->SetCallBack(
      "DBImpl::BackgroundCompaction:NonTrivial:AfterRun", [&](void* /*arg*/) {
        if (cf_1_1) {
          TEST_SYNC_POINT("ColumnFamilyTest::ManualAuto:4");
@@ -1649,8 +1643,8 @@ TEST_P(ColumnFamilyTest, ManualAndAutomaticCompactions) {
        }
      });

-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing();
-  ROCKSDB_NAMESPACE::port::Thread threads([&] {
+  rocksdb::SyncPoint::GetInstance()->EnableProcessing();
+  rocksdb::port::Thread threads([&] {
    CompactRangeOptions compact_options;
    compact_options.exclusive_manual_compaction = false;
    ASSERT_OK(
@@ -1685,8 +1679,8 @@ TEST_P(ColumnFamilyTest, ManualAndAutomaticCompactions) {
    ASSERT_NE("NOT_FOUND", Get(1, *key_iter));
    key_iter++;
  }
-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->DisableProcessing();
-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->ClearAllCallBacks();
+  rocksdb::SyncPoint::GetInstance()->DisableProcessing();
+  rocksdb::SyncPoint::GetInstance()->ClearAllCallBacks();
 }

 TEST_P(ColumnFamilyTest, SameCFManualManualCompactions) {
@@ -1727,13 +1721,13 @@ TEST_P(ColumnFamilyTest, SameCFManualManualCompactions) {
  }
  bool cf_1_1 = true;
  bool cf_1_2 = true;
-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->LoadDependency(
+  rocksdb::SyncPoint::GetInstance()->LoadDependency(
      {{"ColumnFamilyTest::ManualManual:4", "ColumnFamilyTest::ManualManual:2"},
       {"ColumnFamilyTest::ManualManual:4", "ColumnFamilyTest::ManualManual:5"},
       {"ColumnFamilyTest::ManualManual:1", "ColumnFamilyTest::ManualManual:2"},
       {"ColumnFamilyTest::ManualManual:1",
        "ColumnFamilyTest::ManualManual:3"}});
-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->SetCallBack(
+  rocksdb::SyncPoint::GetInstance()->SetCallBack(
      "DBImpl::BackgroundCompaction:NonTrivial:AfterRun", [&](void* /*arg*/) {
        if (cf_1_1) {
          TEST_SYNC_POINT("ColumnFamilyTest::ManualManual:4");
@@ -1745,8 +1739,8 @@ TEST_P(ColumnFamilyTest, SameCFManualManualCompactions) {
        }
      });

-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing();
-  ROCKSDB_NAMESPACE::port::Thread threads([&] {
+  rocksdb::SyncPoint::GetInstance()->EnableProcessing();
+  rocksdb::port::Thread threads([&] {
    CompactRangeOptions compact_options;
    compact_options.exclusive_manual_compaction = true;
    ASSERT_OK(
@@ -1766,7 +1760,7 @@ TEST_P(ColumnFamilyTest, SameCFManualManualCompactions) {
                        1);
  }

-  ROCKSDB_NAMESPACE::port::Thread threads1([&] {
+  rocksdb::port::Thread threads1([&] {
    CompactRangeOptions compact_options;
    compact_options.exclusive_manual_compaction = false;
    ASSERT_OK(
@@ -1787,8 +1781,8 @@ TEST_P(ColumnFamilyTest, SameCFManualManualCompactions) {
    ASSERT_NE("NOT_FOUND", Get(1, *key_iter));
    key_iter++;
  }
-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->DisableProcessing();
-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->ClearAllCallBacks();
+  rocksdb::SyncPoint::GetInstance()->DisableProcessing();
+  rocksdb::SyncPoint::GetInstance()->ClearAllCallBacks();
 }

 TEST_P(ColumnFamilyTest, SameCFManualAutomaticCompactions) {
@@ -1829,12 +1823,12 @@ TEST_P(ColumnFamilyTest, SameCFManualAutomaticCompactions) {
  }
  bool cf_1_1 = true;
  bool cf_1_2 = true;
-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->LoadDependency(
+  rocksdb::SyncPoint::GetInstance()->LoadDependency(
      {{"ColumnFamilyTest::ManualAuto:4", "ColumnFamilyTest::ManualAuto:2"},
       {"ColumnFamilyTest::ManualAuto:4", "ColumnFamilyTest::ManualAuto:5"},
       {"ColumnFamilyTest::ManualAuto:1", "ColumnFamilyTest::ManualAuto:2"},
       {"ColumnFamilyTest::ManualAuto:1", "ColumnFamilyTest::ManualAuto:3"}});
-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->SetCallBack(
+  rocksdb::SyncPoint::GetInstance()->SetCallBack(
      "DBImpl::BackgroundCompaction:NonTrivial:AfterRun", [&](void* /*arg*/) {
        if (cf_1_1) {
          TEST_SYNC_POINT("ColumnFamilyTest::ManualAuto:4");
@@ -1846,8 +1840,8 @@ TEST_P(ColumnFamilyTest, SameCFManualAutomaticCompactions) {
        }
      });

-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing();
-  ROCKSDB_NAMESPACE::port::Thread threads([&] {
+  rocksdb::SyncPoint::GetInstance()->EnableProcessing();
+  rocksdb::port::Thread threads([&] {
    CompactRangeOptions compact_options;
    compact_options.exclusive_manual_compaction = false;
    ASSERT_OK(
@@ -1880,8 +1874,8 @@ TEST_P(ColumnFamilyTest, SameCFManualAutomaticCompactions) {
    ASSERT_NE("NOT_FOUND", Get(1, *key_iter));
    key_iter++;
  }
-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->DisableProcessing();
-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->ClearAllCallBacks();
+  rocksdb::SyncPoint::GetInstance()->DisableProcessing();
+  rocksdb::SyncPoint::GetInstance()->ClearAllCallBacks();
 }

 TEST_P(ColumnFamilyTest, SameCFManualAutomaticCompactionsLevel) {
@@ -1922,14 +1916,14 @@ TEST_P(ColumnFamilyTest, SameCFManualAutomaticCompactionsLevel) {
  }
  bool cf_1_1 = true;
  bool cf_1_2 = true;
-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->LoadDependency(
+  rocksdb::SyncPoint::GetInstance()->LoadDependency(
      {{"ColumnFamilyTest::ManualAuto:4", "ColumnFamilyTest::ManualAuto:2"},
       {"ColumnFamilyTest::ManualAuto:4", "ColumnFamilyTest::ManualAuto:5"},
       {"ColumnFamilyTest::ManualAuto:3", "ColumnFamilyTest::ManualAuto:2"},
       {"LevelCompactionPicker::PickCompactionBySize:0",
        "ColumnFamilyTest::ManualAuto:3"},
       {"ColumnFamilyTest::ManualAuto:1", "ColumnFamilyTest::ManualAuto:3"}});
-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->SetCallBack(
+  rocksdb::SyncPoint::GetInstance()->SetCallBack(
      "DBImpl::BackgroundCompaction:NonTrivial:AfterRun", [&](void* /*arg*/) {
        if (cf_1_1) {
          TEST_SYNC_POINT("ColumnFamilyTest::ManualAuto:4");
@@ -1941,8 +1935,8 @@ TEST_P(ColumnFamilyTest, SameCFManualAutomaticCompactionsLevel) {
        }
      });

-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing();
-  ROCKSDB_NAMESPACE::port::Thread threads([&] {
+  rocksdb::SyncPoint::GetInstance()->EnableProcessing();
+  rocksdb::port::Thread threads([&] {
    CompactRangeOptions compact_options;
    compact_options.exclusive_manual_compaction = false;
    ASSERT_OK(
@@ -1973,8 +1967,8 @@ TEST_P(ColumnFamilyTest, SameCFManualAutomaticCompactionsLevel) {
    ASSERT_NE("NOT_FOUND", Get(1, *key_iter));
    key_iter++;
  }
-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->DisableProcessing();
-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->ClearAllCallBacks();
+  rocksdb::SyncPoint::GetInstance()->DisableProcessing();
+  rocksdb::SyncPoint::GetInstance()->ClearAllCallBacks();
 }

 // In this test, we generate enough files to trigger automatic compactions.
@@ -2014,12 +2008,12 @@ TEST_P(ColumnFamilyTest, SameCFAutomaticManualCompactions) {

  bool cf_1_1 = true;
  bool cf_1_2 = true;
-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->LoadDependency(
+  rocksdb::SyncPoint::GetInstance()->LoadDependency(
      {{"ColumnFamilyTest::AutoManual:4", "ColumnFamilyTest::AutoManual:2"},
       {"ColumnFamilyTest::AutoManual:4", "ColumnFamilyTest::AutoManual:5"},
       {"CompactionPicker::CompactRange:Conflict",
        "ColumnFamilyTest::AutoManual:3"}});
-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->SetCallBack(
+  rocksdb::SyncPoint::GetInstance()->SetCallBack(
      "DBImpl::BackgroundCompaction:NonTrivial:AfterRun", [&](void* /*arg*/) {
        if (cf_1_1) {
          TEST_SYNC_POINT("ColumnFamilyTest::AutoManual:4");
@@ -2031,7 +2025,7 @@ TEST_P(ColumnFamilyTest, SameCFAutomaticManualCompactions) {
        }
      });

-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing();
+  rocksdb::SyncPoint::GetInstance()->EnableProcessing();

  // SETUP column family "one" -- universal style
  for (int i = 0; i < one.level0_file_num_compaction_trigger; ++i) {
@@ -2065,8 +2059,8 @@ TEST_P(ColumnFamilyTest, SameCFAutomaticManualCompactions) {
    ASSERT_NE("NOT_FOUND", Get(1, *key_iter));
    key_iter++;
  }
-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->DisableProcessing();
-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->ClearAllCallBacks();
+  rocksdb::SyncPoint::GetInstance()->DisableProcessing();
+  rocksdb::SyncPoint::GetInstance()->ClearAllCallBacks();
 }
 #endif  // !ROCKSDB_LITE

@@ -2077,7 +2071,6 @@ std::string IterStatus(Iterator* iter) {
  if (iter->Valid()) {
    result = iter->key().ToString() + "->" + iter->value().ToString();
  } else {
-    EXPECT_OK(iter->status());
    result = "(invalid)";
  }
  return result;
@@ -2332,7 +2325,7 @@ TEST_P(ColumnFamilyTest, ReadDroppedColumnFamily) {
        ASSERT_OK(db_->DropColumnFamily(handles_[2]));
      } else {
        // delete CF two
-        ASSERT_OK(db_->DestroyColumnFamilyHandle(handles_[2]));
+        db_->DestroyColumnFamilyHandle(handles_[2]);
        handles_[2] = nullptr;
      }
      // Make sure iterator created can still be used.
@@ -2388,6 +2381,7 @@ TEST_P(ColumnFamilyTest, LiveIteratorWithDroppedColumnFamily) {
  // 1MB should create ~10 files for each CF
  int kKeysNum = 10000;
  PutRandomData(1, kKeysNum, 100);
+
  {
    std::unique_ptr<Iterator> iterator(
        db_->NewIterator(ReadOptions(), handles_[1]));
@@ -2421,7 +2415,7 @@ TEST_P(ColumnFamilyTest, FlushAndDropRaceCondition) {
  options.write_buffer_size = 100000;  // small write buffer size
  Reopen({options, options});

-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->LoadDependency(
+  rocksdb::SyncPoint::GetInstance()->LoadDependency(
      {{"VersionSet::LogAndApply::ColumnFamilyDrop:0",
        "FlushJob::WriteLevel0Table"},
       {"VersionSet::LogAndApply::ColumnFamilyDrop:1",
@@ -2429,14 +2423,11 @@ TEST_P(ColumnFamilyTest, FlushAndDropRaceCondition) {
       {"FlushJob::InstallResults",
        "VersionSet::LogAndApply::ColumnFamilyDrop:2"}});

-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing();
+  rocksdb::SyncPoint::GetInstance()->EnableProcessing();
  test::SleepingBackgroundTask sleeping_task;

  env_->Schedule(&test::SleepingBackgroundTask::DoSleepTask, &sleeping_task,
                 Env::Priority::HIGH);
-  // Make sure the task is sleeping. Otherwise, it might start to execute
-  // after sleeping_task.WaitUntilDone() and cause TSAN warning.
-  sleeping_task.WaitUntilSleeping();

  // 1MB should create ~10 files for each CF
  int kKeysNum = 10000;
@@ -2451,9 +2442,6 @@ TEST_P(ColumnFamilyTest, FlushAndDropRaceCondition) {
  // now we sleep again. this is just so we're certain that flush job finished
  env_->Schedule(&test::SleepingBackgroundTask::DoSleepTask, &sleeping_task,
                 Env::Priority::HIGH);
-  // Make sure the task is sleeping. Otherwise, it might start to execute
-  // after sleeping_task.WaitUntilDone() and cause TSAN warning.
-  sleeping_task.WaitUntilSleeping();
  sleeping_task.WakeUp();
  sleeping_task.WaitUntilDone();

@@ -2514,21 +2502,21 @@ TEST_P(ColumnFamilyTest, CreateAndDropRace) {

  auto main_thread_id = std::this_thread::get_id();

-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->SetCallBack(
-      "PersistRocksDBOptions:start", [&](void* /*arg*/) {
-        auto current_thread_id = std::this_thread::get_id();
-        // If it's the main thread hitting this sync-point, then it
-        // will be blocked until some other thread update the test_stage.
-        if (main_thread_id == current_thread_id) {
-          test_stage = kMainThreadStartPersistingOptionsFile;
-          while (test_stage < kChildThreadFinishDroppingColumnFamily &&
-                 !ordered_by_writethread) {
-            Env::Default()->SleepForMicroseconds(100);
-          }
-        }
-      });
+  rocksdb::SyncPoint::GetInstance()->SetCallBack("PersistRocksDBOptions:start",
+                                                 [&](void* /*arg*/) {
+    auto current_thread_id = std::this_thread::get_id();
+    // If it's the main thread hitting this sync-point, then it
+    // will be blocked until some other thread update the test_stage.
+    if (main_thread_id == current_thread_id) {
+      test_stage = kMainThreadStartPersistingOptionsFile;
+      while (test_stage < kChildThreadFinishDroppingColumnFamily &&
+             !ordered_by_writethread) {
+        Env::Default()->SleepForMicroseconds(100);
+      }
+    }
+  });

-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->SetCallBack(
+  rocksdb::SyncPoint::GetInstance()->SetCallBack(
      "WriteThread::EnterUnbatched:Wait", [&](void* /*arg*/) {
        // This means a thread doing DropColumnFamily() is waiting for
        // other thread to finish persisting options.
@@ -2540,12 +2528,12 @@ TEST_P(ColumnFamilyTest, CreateAndDropRace) {
  Open({"default", "one", "two", "three"},
       {cf_opts[0], cf_opts[1], cf_opts[2], cf_opts[3]});

-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing();
+  rocksdb::SyncPoint::GetInstance()->EnableProcessing();

  // Start a thread that will drop the first column family
  // and its comparator
-  ROCKSDB_NAMESPACE::port::Thread drop_cf_thread(DropSingleColumnFamily, this,
-                                                 1, &comparators);
+  rocksdb::port::Thread drop_cf_thread(DropSingleColumnFamily, this, 1,
+                                       &comparators);

  DropColumnFamilies({2});

@@ -2558,8 +2546,8 @@ TEST_P(ColumnFamilyTest, CreateAndDropRace) {
    }
  }

-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->DisableProcessing();
-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->ClearAllCallBacks();
+  rocksdb::SyncPoint::GetInstance()->DisableProcessing();
+  rocksdb::SyncPoint::GetInstance()->ClearAllCallBacks();
 }
 #endif  // !ROCKSDB_LITE

@@ -2994,18 +2982,15 @@ TEST_P(ColumnFamilyTest, FlushCloseWALFiles) {
  ASSERT_OK(Put(0, "fodor", "mirko"));
  ASSERT_OK(Put(1, "fodor", "mirko"));

-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->LoadDependency({
+  rocksdb::SyncPoint::GetInstance()->LoadDependency({
      {"DBImpl::BGWorkFlush:done", "FlushCloseWALFiles:0"},
  });
-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing();
+  rocksdb::SyncPoint::GetInstance()->EnableProcessing();

  // Block flush jobs from running
  test::SleepingBackgroundTask sleeping_task;
  env_->Schedule(&test::SleepingBackgroundTask::DoSleepTask, &sleeping_task,
                 Env::Priority::HIGH);
-  // Make sure the task is sleeping. Otherwise, it might start to execute
-  // after sleeping_task.WaitUntilDone() and cause TSAN warning.
-  sleeping_task.WaitUntilSleeping();

  WriteOptions wo;
  wo.sync = true;
@@ -3016,7 +3001,7 @@ TEST_P(ColumnFamilyTest, FlushCloseWALFiles) {
  sleeping_task.WakeUp();
  sleeping_task.WaitUntilDone();
  TEST_SYNC_POINT("FlushCloseWALFiles:0");
-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->DisableProcessing();
+  rocksdb::SyncPoint::GetInstance()->DisableProcessing();
  ASSERT_EQ(1, env.num_open_wal_file_.load());

  Reopen();
@@ -3038,7 +3023,6 @@ TEST_P(ColumnFamilyTest, IteratorCloseWALFile1) {
  ASSERT_OK(Put(1, "fodor", "mirko"));
  // Create an iterator holding the current super version.
  Iterator* it = db_->NewIterator(ReadOptions(), handles_[1]);
-  ASSERT_OK(it->status());
  // A flush will make `it` hold the last reference of its super version.
  Flush(1);

@@ -3052,9 +3036,6 @@ TEST_P(ColumnFamilyTest, IteratorCloseWALFile1) {
  test::SleepingBackgroundTask sleeping_task;
  env_->Schedule(&test::SleepingBackgroundTask::DoSleepTask, &sleeping_task,
                 Env::Priority::HIGH);
-  // Make sure the task is sleeping. Otherwise, it might start to execute
-  // after sleeping_task.WaitUntilDone() and cause TSAN warning.
-  sleeping_task.WaitUntilSleeping();

  WriteOptions wo;
  wo.sync = true;
@@ -3091,7 +3072,6 @@ TEST_P(ColumnFamilyTest, IteratorCloseWALFile2) {
  ReadOptions ro;
  ro.background_purge_on_iterator_cleanup = true;
  Iterator* it = db_->NewIterator(ro, handles_[1]);
-  ASSERT_OK(it->status());
  // A flush will make `it` hold the last reference of its super version.
  Flush(1);

@@ -3099,14 +3079,14 @@ TEST_P(ColumnFamilyTest, IteratorCloseWALFile2) {
  ASSERT_OK(Put(0, "fodor", "mirko"));
  ASSERT_OK(Put(1, "fodor", "mirko"));

-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->LoadDependency({
+  rocksdb::SyncPoint::GetInstance()->LoadDependency({
      {"ColumnFamilyTest::IteratorCloseWALFile2:0",
       "DBImpl::BGWorkPurge:start"},
      {"ColumnFamilyTest::IteratorCloseWALFile2:2",
       "DBImpl::BackgroundCallFlush:start"},
      {"DBImpl::BGWorkPurge:end", "ColumnFamilyTest::IteratorCloseWALFile2:1"},
  });
-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing();
+  rocksdb::SyncPoint::GetInstance()->EnableProcessing();

  WriteOptions wo;
  wo.sync = true;
@@ -3124,7 +3104,7 @@ TEST_P(ColumnFamilyTest, IteratorCloseWALFile2) {
  TEST_SYNC_POINT("ColumnFamilyTest::IteratorCloseWALFile2:2");
  WaitForFlush(1);
  ASSERT_EQ(1, env.num_open_wal_file_.load());
-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->DisableProcessing();
+  rocksdb::SyncPoint::GetInstance()->DisableProcessing();

  Reopen();
  ASSERT_EQ("mirko", Get(0, "fodor"));
@@ -3168,14 +3148,14 @@ TEST_P(ColumnFamilyTest, ForwardIteratorCloseWALFile) {
  ASSERT_OK(Put(0, "fodor", "mirko"));
  ASSERT_OK(Put(1, "fodor", "mirko"));

-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->LoadDependency({
+  rocksdb::SyncPoint::GetInstance()->LoadDependency({
      {"ColumnFamilyTest::IteratorCloseWALFile2:0",
       "DBImpl::BGWorkPurge:start"},
      {"ColumnFamilyTest::IteratorCloseWALFile2:2",
       "DBImpl::BackgroundCallFlush:start"},
      {"DBImpl::BGWorkPurge:end", "ColumnFamilyTest::IteratorCloseWALFile2:1"},
  });
-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing();
+  rocksdb::SyncPoint::GetInstance()->EnableProcessing();

  WriteOptions wo;
  wo.sync = true;
@@ -3186,8 +3166,6 @@ TEST_P(ColumnFamilyTest, ForwardIteratorCloseWALFile) {
  // Deleting the iterator will clear its super version, triggering
  // closing all files
  it->Seek("");
-  ASSERT_OK(it->status());
-
  ASSERT_EQ(2, env.num_open_wal_file_.load());
  ASSERT_EQ(0, env.delete_count_.load());

@@ -3201,7 +3179,7 @@ TEST_P(ColumnFamilyTest, ForwardIteratorCloseWALFile) {
  ASSERT_EQ(1, env.delete_count_.load());

  delete it;
-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->DisableProcessing();
+  rocksdb::SyncPoint::GetInstance()->DisableProcessing();

  Reopen();
  ASSERT_EQ("mirko", Get(0, "fodor"));
@@ -3218,29 +3196,29 @@ TEST_P(ColumnFamilyTest, LogSyncConflictFlush) {
  Open();
  CreateColumnFamiliesAndReopen({"one", "two"});

-  ASSERT_OK(Put(0, "", ""));
-  ASSERT_OK(Put(1, "foo", "bar"));
+  Put(0, "", "");
+  Put(1, "foo", "bar");

-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->LoadDependency(
+  rocksdb::SyncPoint::GetInstance()->LoadDependency(
      {{"DBImpl::SyncWAL:BeforeMarkLogsSynced:1",
        "ColumnFamilyTest::LogSyncConflictFlush:1"},
       {"ColumnFamilyTest::LogSyncConflictFlush:2",
        "DBImpl::SyncWAL:BeforeMarkLogsSynced:2"}});

-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing();
+  rocksdb::SyncPoint::GetInstance()->EnableProcessing();

-  ROCKSDB_NAMESPACE::port::Thread thread([&] { ASSERT_OK(db_->SyncWAL()); });
+  rocksdb::port::Thread thread([&] { db_->SyncWAL(); });

  TEST_SYNC_POINT("ColumnFamilyTest::LogSyncConflictFlush:1");
  Flush(1);
-  ASSERT_OK(Put(1, "foo", "bar"));
+  Put(1, "foo", "bar");
  Flush(1);

  TEST_SYNC_POINT("ColumnFamilyTest::LogSyncConflictFlush:2");

  thread.join();

-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->DisableProcessing();
+  rocksdb::SyncPoint::GetInstance()->DisableProcessing();
  Close();
 }
 #endif
@@ -3316,7 +3294,7 @@ TEST_P(ColumnFamilyTest, DISABLED_LogTruncationTest) {
  Close();

  // cleanup
-  ASSERT_OK(env_->DeleteDir(backup_logs));
+  env_->DeleteDir(backup_logs);
 }

 TEST_P(ColumnFamilyTest, DefaultCfPathsTest) {
@@ -3372,17 +3350,15 @@ TEST_P(ColumnFamilyTest, MultipleCFPathsTest) {

  // Re-open and verify the keys.
  Reopen({ColumnFamilyOptions(), cf_opt1, cf_opt2});
-  DBImpl* dbi = static_cast_with_check<DBImpl>(db_);
+  DBImpl* dbi = reinterpret_cast<DBImpl*>(db_);
  for (int cf = 1; cf != 3; ++cf) {
    ReadOptions read_options;
    read_options.readahead_size = 0;
    auto it = dbi->NewIterator(read_options, handles_[cf]);
    for (it->SeekToFirst(); it->Valid(); it->Next()) {
-      ASSERT_OK(it->status());
      Slice key(it->key());
      ASSERT_NE(keys_[cf].end(), keys_[cf].find(key.ToString()));
    }
-    ASSERT_OK(it->status());
    delete it;

    for (const auto& key : keys_[cf]) {
@@ -3391,7 +3367,7 @@ TEST_P(ColumnFamilyTest, MultipleCFPathsTest) {
  }
 }

-}  // namespace ROCKSDB_NAMESPACE
+}  // namespace rocksdb

 #ifdef ROCKSDB_UNITTESTS_WITH_CUSTOM_OBJECTS_FROM_STATIC_LIBS
 extern "C" {
@@ -3402,7 +3378,7 @@ void RegisterCustomObjects(int /*argc*/, char** /*argv*/) {}
 #endif  // !ROCKSDB_UNITTESTS_WITH_CUSTOM_OBJECTS_FROM_STATIC_LIBS

 int main(int argc, char** argv) {
-  ROCKSDB_NAMESPACE::port::InstallStackTraceHandler();
+  rocksdb::port::InstallStackTraceHandler();
  ::testing::InitGoogleTest(&argc, argv);
  RegisterCustomObjects(argc, argv);
  return RUN_ALL_TESTS();
@@ -16,10 +16,9 @@
 #include "rocksdb/env.h"
 #include "test_util/sync_point.h"
 #include "test_util/testharness.h"
-#include "util/cast_util.h"
 #include "util/string_util.h"

-namespace ROCKSDB_NAMESPACE {
+namespace rocksdb {

 class CompactFilesTest : public testing::Test {
 public:
@@ -82,11 +81,11 @@ TEST_F(CompactFilesTest, L0ConflictsFiles) {
  assert(s.ok());
  assert(db);

-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->LoadDependency({
+  rocksdb::SyncPoint::GetInstance()->LoadDependency({
      {"CompactFilesImpl:0", "BackgroundCallCompaction:0"},
      {"BackgroundCallCompaction:1", "CompactFilesImpl:1"},
  });
-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing();
+  rocksdb::SyncPoint::GetInstance()->EnableProcessing();

  // create couple files
  // Background compaction starts and waits in BackgroundCallCompaction:0
@@ -96,7 +95,7 @@ TEST_F(CompactFilesTest, L0ConflictsFiles) {
    db->Flush(FlushOptions());
  }

-  ROCKSDB_NAMESPACE::ColumnFamilyMetaData meta;
+  rocksdb::ColumnFamilyMetaData meta;
  db->GetColumnFamilyMetaData(&meta);
  std::string file1;
  for (auto& file : meta.levels[0].files) {
@@ -109,12 +108,12 @@ TEST_F(CompactFilesTest, L0ConflictsFiles) {
      // The background compaction then notices that there is an L0 compaction
      // already in progress and doesn't do an L0 compaction
      // Once the background compaction finishes, the compact files finishes
-      ASSERT_OK(db->CompactFiles(ROCKSDB_NAMESPACE::CompactionOptions(),
-                                 {file1, file2}, 0));
+      ASSERT_OK(
+          db->CompactFiles(rocksdb::CompactionOptions(), {file1, file2}, 0));
      break;
    }
  }
-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->DisableProcessing();
+  rocksdb::SyncPoint::GetInstance()->DisableProcessing();
  delete db;
 }

@@ -149,7 +148,7 @@ TEST_F(CompactFilesTest, ObsoleteFiles) {

  auto l0_files = collector->GetFlushedFiles();
  ASSERT_OK(db->CompactFiles(CompactionOptions(), l0_files, 1));
-  static_cast_with_check<DBImpl>(db)->TEST_WaitForCompact();
+  reinterpret_cast<DBImpl*>(db)->TEST_WaitForCompact();

  // verify all compaction input files are deleted
  for (auto fname : l0_files) {
@@ -184,13 +183,13 @@ TEST_F(CompactFilesTest, NotCutOutputOnLevel0) {
  for (int i = 0; i < 500; ++i) {
    db->Put(WriteOptions(), ToString(i), std::string(1000, 'a' + (i % 26)));
  }
-  static_cast_with_check<DBImpl>(db)->TEST_WaitForFlushMemTable();
+  reinterpret_cast<DBImpl*>(db)->TEST_WaitForFlushMemTable();
  auto l0_files_1 = collector->GetFlushedFiles();
  collector->ClearFlushedFiles();
  for (int i = 0; i < 500; ++i) {
    db->Put(WriteOptions(), ToString(i), std::string(1000, 'a' + (i % 26)));
  }
-  static_cast_with_check<DBImpl>(db)->TEST_WaitForFlushMemTable();
+  reinterpret_cast<DBImpl*>(db)->TEST_WaitForFlushMemTable();
  auto l0_files_2 = collector->GetFlushedFiles();
  ASSERT_OK(db->CompactFiles(CompactionOptions(), l0_files_1, 0));
  ASSERT_OK(db->CompactFiles(CompactionOptions(), l0_files_2, 0));
@@ -225,14 +224,14 @@ TEST_F(CompactFilesTest, CapturingPendingFiles) {
  auto l0_files = collector->GetFlushedFiles();
  EXPECT_EQ(5, l0_files.size());

-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->LoadDependency({
+  rocksdb::SyncPoint::GetInstance()->LoadDependency({
      {"CompactFilesImpl:2", "CompactFilesTest.CapturingPendingFiles:0"},
      {"CompactFilesTest.CapturingPendingFiles:1", "CompactFilesImpl:3"},
  });
-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing();
+  rocksdb::SyncPoint::GetInstance()->EnableProcessing();

  // Start compacting files.
-  ROCKSDB_NAMESPACE::port::Thread compaction_thread(
+  rocksdb::port::Thread compaction_thread(
      [&] { EXPECT_OK(db->CompactFiles(CompactionOptions(), l0_files, 1)); });

  // In the meantime flush another file.
@@ -243,7 +242,7 @@ TEST_F(CompactFilesTest, CapturingPendingFiles) {

  compaction_thread.join();

-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->DisableProcessing();
+  rocksdb::SyncPoint::GetInstance()->DisableProcessing();

  delete db;

@@ -297,12 +296,12 @@ TEST_F(CompactFilesTest, CompactionFilterWithGetSv) {
  db->Flush(FlushOptions());

  // Compact all L0 files using CompactFiles
-  ROCKSDB_NAMESPACE::ColumnFamilyMetaData meta;
+  rocksdb::ColumnFamilyMetaData meta;
  db->GetColumnFamilyMetaData(&meta);
  for (auto& file : meta.levels[0].files) {
    std::string fname = file.db_path + "/" + file.name;
    ASSERT_OK(
-        db->CompactFiles(ROCKSDB_NAMESPACE::CompactionOptions(), {fname}, 0));
+        db->CompactFiles(rocksdb::CompactionOptions(), {fname}, 0));
  }


@@ -348,7 +347,7 @@ TEST_F(CompactFilesTest, SentinelCompressionType) {
    compaction_opts.compression = CompressionType::kDisableCompressionOption;
    ASSERT_OK(db->CompactFiles(compaction_opts, l0_files, 1));

-    ROCKSDB_NAMESPACE::TablePropertiesCollection all_tables_props;
+    rocksdb::TablePropertiesCollection all_tables_props;
    ASSERT_OK(db->GetPropertiesOfAllTables(&all_tables_props));
    for (const auto& name_and_table_props : all_tables_props) {
      ASSERT_EQ(CompressionTypeToString(CompressionType::kZlibCompression),
@@ -384,7 +383,7 @@ TEST_F(CompactFilesTest, GetCompactionJobInfo) {
  for (int i = 0; i < 500; ++i) {
    db->Put(WriteOptions(), ToString(i), std::string(1000, 'a' + (i % 26)));
  }
-  static_cast_with_check<DBImpl>(db)->TEST_WaitForFlushMemTable();
+  reinterpret_cast<DBImpl*>(db)->TEST_WaitForFlushMemTable();
  auto l0_files_1 = collector->GetFlushedFiles();
  CompactionOptions co;
  co.compression = CompressionType::kLZ4Compression;
@@ -403,7 +402,7 @@ TEST_F(CompactFilesTest, GetCompactionJobInfo) {
  delete db;
 }

-}  // namespace ROCKSDB_NAMESPACE
+}  // namespace rocksdb

 int main(int argc, char** argv) {
  ::testing::InitGoogleTest(&argc, argv);
@@ -5,13 +5,11 @@

 #ifndef ROCKSDB_LITE
 #include "db/compacted_db_impl.h"
-
 #include "db/db_impl/db_impl.h"
 #include "db/version_set.h"
 #include "table/get_context.h"
-#include "util/cast_util.h"

-namespace ROCKSDB_NAMESPACE {
+namespace rocksdb {

 extern void MarkKeyMayExist(void* arg);
 extern bool SaveValue(void* arg, const ParsedInternalKey& parsed_key,
@@ -39,13 +37,10 @@ Status CompactedDBImpl::Get(const ReadOptions& options, ColumnFamilyHandle*,
                            const Slice& key, PinnableSlice* value) {
  GetContext get_context(user_comparator_, nullptr, nullptr, nullptr,
                         GetContext::kNotFound, key, value, nullptr, nullptr,
-                         nullptr, true, nullptr, nullptr);
+                         true, nullptr, nullptr);
  LookupKey lkey(key, kMaxSequenceNumber);
-  Status s = files_.files[FindFile(key)].fd.table_reader->Get(
-      options, lkey.internal_key(), &get_context, nullptr);
-  if (!s.ok() && !s.IsNotFound()) {
-    return s;
-  }
+  files_.files[FindFile(key)].fd.table_reader->Get(options, lkey.internal_key(),
+                                                   &get_context, nullptr);
  if (get_context.State() == GetContext::kFound) {
    return Status::OK();
  }
@@ -75,16 +70,12 @@ std::vector<Status> CompactedDBImpl::MultiGet(const ReadOptions& options,
      std::string& value = (*values)[idx];
      GetContext get_context(user_comparator_, nullptr, nullptr, nullptr,
                             GetContext::kNotFound, keys[idx], &pinnable_val,
-                             nullptr, nullptr, nullptr, true, nullptr, nullptr);
+                             nullptr, nullptr, true, nullptr, nullptr);
      LookupKey lkey(keys[idx], kMaxSequenceNumber);
-      Status s = r->Get(options, lkey.internal_key(), &get_context, nullptr);
-      if (!s.ok() && !s.IsNotFound()) {
-        statuses[idx] = s;
-      } else {
-        value.assign(pinnable_val.data(), pinnable_val.size());
-        if (get_context.State() == GetContext::kFound) {
-          statuses[idx] = Status::OK();
-        }
+      r->Get(options, lkey.internal_key(), &get_context, nullptr);
+      value.assign(pinnable_val.data(), pinnable_val.size());
+      if (get_context.State() == GetContext::kFound) {
+        statuses[idx] = Status::OK();
      }
    }
    ++idx;
@@ -99,8 +90,8 @@ Status CompactedDBImpl::Init(const Options& options) {
                            ColumnFamilyOptions(options));
  Status s = Recover({cf}, true /* read only */, false, true);
  if (s.ok()) {
-    cfd_ = static_cast_with_check<ColumnFamilyHandleImpl>(DefaultColumnFamily())
-               ->cfd();
+    cfd_ = reinterpret_cast<ColumnFamilyHandleImpl*>(
+              DefaultColumnFamily())->cfd();
    cfd_->InstallSuperVersion(&sv_context, &mutex_);
  }
  mutex_.Unlock();
@@ -156,7 +147,7 @@ Status CompactedDBImpl::Open(const Options& options,
  std::unique_ptr<CompactedDBImpl> db(new CompactedDBImpl(db_options, dbname));
  Status s = db->Init(options);
  if (s.ok()) {
-    db->StartPeriodicWorkScheduler();
+    db->StartTimedTasks();
    ROCKS_LOG_INFO(db->immutable_db_options_.info_log,
                   "Opened the db as fully compacted mode");
    LogFlush(db->immutable_db_options_.info_log);
@@ -165,5 +156,5 @@ Status CompactedDBImpl::Open(const Options& options,
  return s;
 }

-}  // namespace ROCKSDB_NAMESPACE
+}   // namespace rocksdb
 #endif  // ROCKSDB_LITE
@@ -9,7 +9,7 @@
 #include <vector>
 #include "db/db_impl/db_impl.h"

-namespace ROCKSDB_NAMESPACE {
+namespace rocksdb {

 class CompactedDBImpl : public DBImpl {
 public:
@@ -109,5 +109,5 @@ class CompactedDBImpl : public DBImpl {
  const Comparator* user_comparator_;
  LevelFilesBrief files_;
 };
-}  // namespace ROCKSDB_NAMESPACE
+}
 #endif  // ROCKSDB_LITE
@@ -7,25 +7,23 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file. See the AUTHORS file for names of contributors.

-#include "db/compaction/compaction.h"
-
 #include <cinttypes>
 #include <vector>

 #include "db/column_family.h"
+#include "db/compaction/compaction.h"
 #include "rocksdb/compaction_filter.h"
-#include "rocksdb/sst_partitioner.h"
 #include "test_util/sync_point.h"
 #include "util/string_util.h"

-namespace ROCKSDB_NAMESPACE {
+namespace rocksdb {

 const uint64_t kRangeTombstoneSentinel =
    PackSequenceAndType(kMaxSequenceNumber, kTypeRangeDeletion);

 int sstableKeyCompare(const Comparator* user_cmp, const InternalKey& a,
                      const InternalKey& b) {
-  auto c = user_cmp->CompareWithoutTimestamp(a.user_key(), b.user_key());
+  auto c = user_cmp->Compare(a.user_key(), b.user_key());
  if (c != 0) {
    return c;
  }
@@ -207,7 +205,6 @@ bool Compaction::IsFullCompaction(
 Compaction::Compaction(VersionStorageInfo* vstorage,
                       const ImmutableCFOptions& _immutable_cf_options,
                       const MutableCFOptions& _mutable_cf_options,
-                       const MutableDBOptions& _mutable_db_options,
                       std::vector<CompactionInputFiles> _inputs,
                       int _output_level, uint64_t _target_file_size,
                       uint64_t _max_compaction_bytes, uint32_t _output_path_id,
@@ -246,7 +243,7 @@ Compaction::Compaction(VersionStorageInfo* vstorage,
    compaction_reason_ = CompactionReason::kManualCompaction;
  }
  if (max_subcompactions_ == 0) {
-    max_subcompactions_ = _mutable_db_options.max_subcompactions;
+    max_subcompactions_ = immutable_cf_options_.max_subcompactions;
  }
  if (!bottommost_level_) {
    // Currently we only enable dictionary compression during compaction to the
@@ -331,8 +328,6 @@ bool Compaction::IsTrivialMove() const {

  // assert inputs_.size() == 1

-  std::unique_ptr<SstPartitioner> partitioner = CreateSstPartitioner();
-
  for (const auto& file : inputs_.front().files) {
    std::vector<FileMetaData*> file_grand_parents;
    if (output_level_ + 1 >= number_levels_) {
@@ -345,13 +340,6 @@ bool Compaction::IsTrivialMove() const {
    if (compaction_size > max_compaction_bytes_) {
      return false;
    }
-
-    if (partitioner.get() != nullptr) {
-      if (!partitioner->CanDoTrivialMove(file->smallest.user_key(),
-                                         file->largest.user_key())) {
-        return false;
-      }
-    }
  }

  return true;
@@ -537,21 +525,6 @@ std::unique_ptr<CompactionFilter> Compaction::CreateCompactionFilter() const {
      context);
 }

-std::unique_ptr<SstPartitioner> Compaction::CreateSstPartitioner() const {
-  if (!immutable_cf_options_.sst_partitioner_factory) {
-    return nullptr;
-  }
-
-  SstPartitioner::Context context;
-  context.is_full_compaction = is_full_compaction_;
-  context.is_manual_compaction = is_manual_compaction_;
-  context.output_level = output_level_;
-  context.smallest_user_key = smallest_user_key_;
-  context.largest_user_key = largest_user_key_;
-  return immutable_cf_options_.sst_partitioner_factory->CreatePartitioner(
-      context);
-}
-
 bool Compaction::IsOutputLevelEmpty() const {
  return inputs_.back().level != output_level_ || inputs_.back().empty();
 }
@@ -588,4 +561,4 @@ int Compaction::GetInputBaseLevel() const {
  return input_vstorage_->base_level();
 }

-}  // namespace ROCKSDB_NAMESPACE
+}  // namespace rocksdb
@@ -11,10 +11,9 @@
 #include "db/version_set.h"
 #include "memory/arena.h"
 #include "options/cf_options.h"
-#include "rocksdb/sst_partitioner.h"
 #include "util/autovector.h"

-namespace ROCKSDB_NAMESPACE {
+namespace rocksdb {
 // The file contains class Compaction, as well as some helper functions
 // and data structures used by the class.

@@ -72,7 +71,6 @@ class Compaction {
  Compaction(VersionStorageInfo* input_version,
             const ImmutableCFOptions& immutable_cf_options,
             const MutableCFOptions& mutable_cf_options,
-             const MutableDBOptions& mutable_db_options,
             std::vector<CompactionInputFiles> inputs, int output_level,
             uint64_t target_file_size, uint64_t max_compaction_bytes,
             uint32_t output_path_id, CompressionType compression,
@@ -257,9 +255,6 @@ class Compaction {
  // Create a CompactionFilter from compaction_filter_factory
  std::unique_ptr<CompactionFilter> CreateCompactionFilter() const;

-  // Create a SstPartitioner from sst_partitioner_factory
-  std::unique_ptr<SstPartitioner> CreateSstPartitioner() const;
-
  // Is the input level corresponding to output_level_ empty?
  bool IsOutputLevelEmpty() const;

@@ -386,4 +381,4 @@ class Compaction {
 // Return sum of sizes of all files in `files`.
 extern uint64_t TotalFileSize(const std::vector<FileMetaData*>& files);

-}  // namespace ROCKSDB_NAMESPACE
+}  // namespace rocksdb
@@ -5,8 +5,6 @@

 #pragma once

-#include "rocksdb/rocksdb_namespace.h"
-
 struct CompactionIterationStats {
  // Compaction statistics

@@ -3,11 +3,9 @@
 //  COPYING file in the root directory) and Apache 2.0 License
 //  (found in the LICENSE.Apache file in the root directory).

-#include "db/compaction/compaction_iterator.h"
-
 #include <cinttypes>

-#include "db/blob/blob_file_builder.h"
+#include "db/compaction/compaction_iterator.h"
 #include "db/snapshot_checker.h"
 #include "port/likely.h"
 #include "rocksdb/listener.h"
@@ -30,7 +28,7 @@
  ((seq) <= earliest_snapshot_ && \
   (snapshot_checker_ == nullptr || LIKELY(IsInEarliestSnapshot(seq))))

-namespace ROCKSDB_NAMESPACE {
+namespace rocksdb {

 CompactionIterator::CompactionIterator(
    InternalIterator* input, const Comparator* cmp, MergeHelper* merge_helper,
@@ -38,18 +36,16 @@ CompactionIterator::CompactionIterator(
    SequenceNumber earliest_write_conflict_snapshot,
    const SnapshotChecker* snapshot_checker, Env* env,
    bool report_detailed_time, bool expect_valid_internal_key,
-    CompactionRangeDelAggregator* range_del_agg,
-    BlobFileBuilder* blob_file_builder, bool allow_data_in_errors,
-    const Compaction* compaction, const CompactionFilter* compaction_filter,
+    CompactionRangeDelAggregator* range_del_agg, const Compaction* compaction,
+    const CompactionFilter* compaction_filter,
    const std::atomic<bool>* shutting_down,
    const SequenceNumber preserve_deletes_seqnum,
-    const std::atomic<int>* manual_compaction_paused,
+    const std::atomic<bool>* manual_compaction_paused,
    const std::shared_ptr<Logger> info_log)
    : CompactionIterator(
          input, cmp, merge_helper, last_sequence, snapshots,
          earliest_write_conflict_snapshot, snapshot_checker, env,
          report_detailed_time, expect_valid_internal_key, range_del_agg,
-          blob_file_builder, allow_data_in_errors,
          std::unique_ptr<CompactionProxy>(
              compaction ? new CompactionProxy(compaction) : nullptr),
          compaction_filter, shutting_down, preserve_deletes_seqnum,
@@ -62,12 +58,11 @@ CompactionIterator::CompactionIterator(
    const SnapshotChecker* snapshot_checker, Env* env,
    bool report_detailed_time, bool expect_valid_internal_key,
    CompactionRangeDelAggregator* range_del_agg,
-    BlobFileBuilder* blob_file_builder, bool allow_data_in_errors,
    std::unique_ptr<CompactionProxy> compaction,
    const CompactionFilter* compaction_filter,
    const std::atomic<bool>* shutting_down,
    const SequenceNumber preserve_deletes_seqnum,
-    const std::atomic<int>* manual_compaction_paused,
+    const std::atomic<bool>* manual_compaction_paused,
    const std::shared_ptr<Logger> info_log)
    : input_(input),
      cmp_(cmp),
@@ -79,7 +74,6 @@ CompactionIterator::CompactionIterator(
      report_detailed_time_(report_detailed_time),
      expect_valid_internal_key_(expect_valid_internal_key),
      range_del_agg_(range_del_agg),
-      blob_file_builder_(blob_file_builder),
      compaction_(std::move(compaction)),
      compaction_filter_(compaction_filter),
      shutting_down_(shutting_down),
@@ -89,14 +83,11 @@ CompactionIterator::CompactionIterator(
      current_user_key_snapshot_(0),
      merge_out_iter_(merge_helper_),
      current_key_committed_(false),
-      info_log_(info_log),
-      allow_data_in_errors_(allow_data_in_errors) {
+      info_log_(info_log) {
  assert(compaction_filter_ == nullptr || compaction_ != nullptr);
  assert(snapshots_ != nullptr);
-  bottommost_level_ = compaction_ == nullptr
-                          ? false
-                          : compaction_->bottommost_level() &&
-                                !compaction_->allow_ingest_behind();
+  bottommost_level_ =
+      compaction_ == nullptr ? false : compaction_->bottommost_level();
  if (compaction_ != nullptr) {
    level_ptrs_ = std::vector<size_t>(compaction_->number_levels(), 0);
  }
@@ -151,11 +142,12 @@ void CompactionIterator::Next() {
    if (merge_out_iter_.Valid()) {
      key_ = merge_out_iter_.key();
      value_ = merge_out_iter_.value();
-      Status s = ParseInternalKey(key_, &ikey_);
+      bool valid_key __attribute__((__unused__));
+      valid_key =  ParseInternalKey(key_, &ikey_);
      // MergeUntil stops when it encounters a corrupt key and does not
      // include them in the result, so we expect the keys here to be valid.
-      assert(s.ok());
-      if (!s.ok()) {
+      assert(valid_key);
+      if (!valid_key) {
        ROCKS_LOG_FATAL(info_log_, "Invalid key (%s) in compaction",
                        key_.ToString(true).c_str());
      }
@@ -190,7 +182,7 @@ void CompactionIterator::Next() {
  PrepareOutput();
 }

-bool CompactionIterator::InvokeFilterIfNeeded(bool* need_skip,
+void CompactionIterator::InvokeFilterIfNeeded(bool* need_skip,
                                              Slice* skip_until) {
  if (compaction_filter_ != nullptr &&
      (ikey_.type == kTypeValue || ikey_.type == kTypeBlobIndex)) {
@@ -233,31 +225,14 @@ bool CompactionIterator::InvokeFilterIfNeeded(bool* need_skip,
      value_.clear();
      iter_stats_.num_record_drop_user++;
    } else if (filter == CompactionFilter::Decision::kChangeValue) {
-      if (ikey_.type == kTypeBlobIndex) {
-        // value transfer from blob file to inlined data
-        ikey_.type = kTypeValue;
-        current_key_.UpdateInternalKey(ikey_.sequence, ikey_.type);
-      }
      value_ = compaction_filter_value_;
    } else if (filter == CompactionFilter::Decision::kRemoveAndSkipUntil) {
      *need_skip = true;
      compaction_filter_skip_until_.ConvertFromUserKey(kMaxSequenceNumber,
                                                       kValueTypeForSeek);
      *skip_until = compaction_filter_skip_until_.Encode();
-    } else if (filter == CompactionFilter::Decision::kChangeBlobIndex) {
-      if (ikey_.type == kTypeValue) {
-        // value transfer from inlined data to blob file
-        ikey_.type = kTypeBlobIndex;
-        current_key_.UpdateInternalKey(ikey_.sequence, ikey_.type);
-      }
-      value_ = compaction_filter_value_;
-    } else if (filter == CompactionFilter::Decision::kIOError) {
-      status_ =
-          Status::IOError("Failed to access blob during compaction filter");
-      return false;
    }
  }
-  return true;
 }

 void CompactionIterator::NextFromInput() {
@@ -270,28 +245,20 @@ void CompactionIterator::NextFromInput() {
    value_ = input_->value();
    iter_stats_.num_input_records++;

-    Status pikStatus = ParseInternalKey(key_, &ikey_);
-    if (!pikStatus.ok()) {
-      iter_stats_.num_input_corrupt_records++;
-
+    if (!ParseInternalKey(key_, &ikey_)) {
      // If `expect_valid_internal_key_` is false, return the corrupted key
      // and let the caller decide what to do with it.
      // TODO(noetzli): We should have a more elegant solution for this.
      if (expect_valid_internal_key_) {
-        std::string msg("Corrupted internal key not expected.");
-        if (allow_data_in_errors_) {
-          msg.append(" Corrupt key: " + ikey_.user_key.ToString(/*hex=*/true) +
-                     ". ");
-          msg.append("key type: " + std::to_string(ikey_.type) + ".");
-          msg.append("seq: " + std::to_string(ikey_.sequence) + ".");
-        }
-        status_ = Status::Corruption(msg.c_str());
-        return;
+        assert(!"Corrupted internal key not expected.");
+        status_ = Status::Corruption("Corrupted internal key not expected.");
+        break;
      }
      key_ = current_key_.SetInternalKey(key_);
      has_current_user_key_ = false;
      current_user_key_sequence_ = kMaxSequenceNumber;
      current_user_key_snapshot_ = 0;
+      iter_stats_.num_input_corrupt_records++;
      valid_ = true;
      break;
    }
@@ -328,9 +295,8 @@ void CompactionIterator::NextFromInput() {

      // Apply the compaction filter to the first committed version of the user
      // key.
-      if (current_key_committed_ &&
-          !InvokeFilterIfNeeded(&need_skip, &skip_until)) {
-        break;
+      if (current_key_committed_) {
+        InvokeFilterIfNeeded(&need_skip, &skip_until);
      }
    } else {
      // Update the current key to reflect the new sequence number/type without
@@ -350,9 +316,8 @@ void CompactionIterator::NextFromInput() {
        current_key_committed_ = KeyCommitted(ikey_.sequence);
        // Apply the compaction filter to the first committed version of the
        // user key.
-        if (current_key_committed_ &&
-            !InvokeFilterIfNeeded(&need_skip, &skip_until)) {
-          break;
+        if (current_key_committed_) {
+          InvokeFilterIfNeeded(&need_skip, &skip_until);
        }
      }
    }
@@ -366,7 +331,8 @@ void CompactionIterator::NextFromInput() {
    // If there are no snapshots, then this kv affect visibility at tip.
    // Otherwise, search though all existing snapshots to find the earliest
    // snapshot that is affected by this kv.
-    SequenceNumber last_sequence = current_user_key_sequence_;
+    SequenceNumber last_sequence __attribute__((__unused__));
+    last_sequence = current_user_key_sequence_;
    current_user_key_sequence_ = ikey_.sequence;
    SequenceNumber last_snapshot = current_user_key_snapshot_;
    SequenceNumber prev_snapshot = 0;  // 0 means no previous snapshot
@@ -438,8 +404,7 @@ void CompactionIterator::NextFromInput() {

      // Check whether the next key exists, is not corrupt, and is the same key
      // as the single delete.
-      if (input_->Valid() &&
-          ParseInternalKey(input_->key(), &next_ikey) == Status::OK() &&
+      if (input_->Valid() && ParseInternalKey(input_->key(), &next_ikey) &&
          cmp_->Equal(ikey_.user_key, next_ikey.user_key)) {
        // Check whether the next key belongs to the same snapshot as the
        // SingleDelete.
@@ -579,15 +544,11 @@ void CompactionIterator::NextFromInput() {
      // Handle the case where we have a delete key at the bottom most level
      // We can skip outputting the key iff there are no subsequent puts for this
      // key
-      assert(!compaction_ || compaction_->KeyNotExistsBeyondOutputLevel(
-                                 ikey_.user_key, &level_ptrs_));
      ParsedInternalKey next_ikey;
      input_->Next();
      // Skip over all versions of this key that happen to occur in the same snapshot
      // range as the delete
-      while (!IsPausingManualCompaction() && !IsShuttingDown() &&
-             input_->Valid() &&
-             (ParseInternalKey(input_->key(), &next_ikey) == Status::OK()) &&
+      while (input_->Valid() && ParseInternalKey(input_->key(), &next_ikey) &&
             cmp_->Equal(ikey_.user_key, next_ikey.user_key) &&
             (prev_snapshot == 0 ||
              DEFINITELY_NOT_IN_SNAPSHOT(next_ikey.sequence, prev_snapshot))) {
@@ -595,8 +556,7 @@ void CompactionIterator::NextFromInput() {
      }
      // If you find you still need to output a row with this key, we need to output the
      // delete too
-      if (input_->Valid() &&
-          (ParseInternalKey(input_->key(), &next_ikey) == Status::OK()) &&
+      if (input_->Valid() && ParseInternalKey(input_->key(), &next_ikey) &&
          cmp_->Equal(ikey_.user_key, next_ikey.user_key)) {
        valid_ = true;
        at_next_ = true;
@@ -625,11 +585,12 @@ void CompactionIterator::NextFromInput() {
        //       These will be correctly set below.
        key_ = merge_out_iter_.key();
        value_ = merge_out_iter_.value();
-        pikStatus = ParseInternalKey(key_, &ikey_);
+        bool valid_key __attribute__((__unused__));
+        valid_key = ParseInternalKey(key_, &ikey_);
        // MergeUntil stops when it encounters a corrupt key and does not
        // include them in the result, so we expect the keys here to valid.
-        assert(pikStatus.ok());
-        if (!pikStatus.ok()) {
+        assert(valid_key);
+        if (!valid_key) {
          ROCKS_LOG_FATAL(info_log_, "Invalid key (%s) in compaction",
                          key_.ToString(true).c_str());
        }
@@ -679,37 +640,20 @@ void CompactionIterator::NextFromInput() {

 void CompactionIterator::PrepareOutput() {
  if (valid_) {
-    if (ikey_.type == kTypeValue) {
-      if (blob_file_builder_) {
-        blob_index_.clear();
-        const Status s =
-            blob_file_builder_->Add(user_key(), value_, &blob_index_);
+    if (compaction_filter_ && ikey_.type == kTypeBlobIndex) {
+      const auto blob_decision = compaction_filter_->PrepareBlobOutput(
+          user_key(), value_, &compaction_filter_value_);

-        if (!s.ok()) {
-          status_ = s;
-          valid_ = false;
-        } else if (!blob_index_.empty()) {
-          value_ = blob_index_;
-          ikey_.type = kTypeBlobIndex;
-          current_key_.UpdateInternalKey(ikey_.sequence, ikey_.type);
-        }
-      }
-    } else if (ikey_.type == kTypeBlobIndex) {
-      if (compaction_filter_) {
-        const auto blob_decision = compaction_filter_->PrepareBlobOutput(
-            user_key(), value_, &compaction_filter_value_);
-
-        if (blob_decision == CompactionFilter::BlobDecision::kCorruption) {
-          status_ = Status::Corruption(
-              "Corrupted blob reference encountered during GC");
-          valid_ = false;
-        } else if (blob_decision == CompactionFilter::BlobDecision::kIOError) {
-          status_ = Status::IOError("Could not relocate blob during GC");
-          valid_ = false;
-        } else if (blob_decision ==
-                   CompactionFilter::BlobDecision::kChangeValue) {
-          value_ = compaction_filter_value_;
-        }
+      if (blob_decision == CompactionFilter::BlobDecision::kCorruption) {
+        status_ = Status::Corruption(
+            "Corrupted blob reference encountered during GC");
+        valid_ = false;
+      } else if (blob_decision == CompactionFilter::BlobDecision::kIOError) {
+        status_ = Status::IOError("Could not relocate blob during GC");
+        valid_ = false;
+      } else if (blob_decision ==
+                 CompactionFilter::BlobDecision::kChangeValue) {
+        value_ = compaction_filter_value_;
      }
    }

@@ -827,4 +771,4 @@ bool CompactionIterator::IsInEarliestSnapshot(SequenceNumber sequence) {
  return in_snapshot == SnapshotCheckerResult::kInSnapshot;
 }

-}  // namespace ROCKSDB_NAMESPACE
+}  // namespace rocksdb
@@ -19,9 +19,7 @@
 #include "options/cf_options.h"
 #include "rocksdb/compaction_filter.h"

-namespace ROCKSDB_NAMESPACE {
-
-class BlobFileBuilder;
+namespace rocksdb {

 class CompactionIterator {
 public:
@@ -61,38 +59,34 @@ class CompactionIterator {
    const Compaction* compaction_;
  };

-  CompactionIterator(InternalIterator* input, const Comparator* cmp,
-                     MergeHelper* merge_helper, SequenceNumber last_sequence,
-                     std::vector<SequenceNumber>* snapshots,
-                     SequenceNumber earliest_write_conflict_snapshot,
-                     const SnapshotChecker* snapshot_checker, Env* env,
-                     bool report_detailed_time, bool expect_valid_internal_key,
-                     CompactionRangeDelAggregator* range_del_agg,
-                     BlobFileBuilder* blob_file_builder,
-                     bool allow_data_in_errors,
-                     const Compaction* compaction = nullptr,
-                     const CompactionFilter* compaction_filter = nullptr,
-                     const std::atomic<bool>* shutting_down = nullptr,
-                     const SequenceNumber preserve_deletes_seqnum = 0,
-                     const std::atomic<int>* manual_compaction_paused = nullptr,
-                     const std::shared_ptr<Logger> info_log = nullptr);
+  CompactionIterator(
+      InternalIterator* input, const Comparator* cmp, MergeHelper* merge_helper,
+      SequenceNumber last_sequence, std::vector<SequenceNumber>* snapshots,
+      SequenceNumber earliest_write_conflict_snapshot,
+      const SnapshotChecker* snapshot_checker, Env* env,
+      bool report_detailed_time, bool expect_valid_internal_key,
+      CompactionRangeDelAggregator* range_del_agg,
+      const Compaction* compaction = nullptr,
+      const CompactionFilter* compaction_filter = nullptr,
+      const std::atomic<bool>* shutting_down = nullptr,
+      const SequenceNumber preserve_deletes_seqnum = 0,
+      const std::atomic<bool>* manual_compaction_paused = nullptr,
+      const std::shared_ptr<Logger> info_log = nullptr);

  // Constructor with custom CompactionProxy, used for tests.
-  CompactionIterator(InternalIterator* input, const Comparator* cmp,
-                     MergeHelper* merge_helper, SequenceNumber last_sequence,
-                     std::vector<SequenceNumber>* snapshots,
-                     SequenceNumber earliest_write_conflict_snapshot,
-                     const SnapshotChecker* snapshot_checker, Env* env,
-                     bool report_detailed_time, bool expect_valid_internal_key,
-                     CompactionRangeDelAggregator* range_del_agg,
-                     BlobFileBuilder* blob_file_builder,
-                     bool allow_data_in_errors,
-                     std::unique_ptr<CompactionProxy> compaction,
-                     const CompactionFilter* compaction_filter = nullptr,
-                     const std::atomic<bool>* shutting_down = nullptr,
-                     const SequenceNumber preserve_deletes_seqnum = 0,
-                     const std::atomic<int>* manual_compaction_paused = nullptr,
-                     const std::shared_ptr<Logger> info_log = nullptr);
+  CompactionIterator(
+      InternalIterator* input, const Comparator* cmp, MergeHelper* merge_helper,
+      SequenceNumber last_sequence, std::vector<SequenceNumber>* snapshots,
+      SequenceNumber earliest_write_conflict_snapshot,
+      const SnapshotChecker* snapshot_checker, Env* env,
+      bool report_detailed_time, bool expect_valid_internal_key,
+      CompactionRangeDelAggregator* range_del_agg,
+      std::unique_ptr<CompactionProxy> compaction,
+      const CompactionFilter* compaction_filter = nullptr,
+      const std::atomic<bool>* shutting_down = nullptr,
+      const SequenceNumber preserve_deletes_seqnum = 0,
+      const std::atomic<bool>* manual_compaction_paused = nullptr,
+      const std::shared_ptr<Logger> info_log = nullptr);

  ~CompactionIterator();

@@ -127,8 +121,7 @@ class CompactionIterator {
  void PrepareOutput();

  // Invoke compaction filter if needed.
-  // Return true on success, false on failures (e.g.: kIOError).
-  bool InvokeFilterIfNeeded(bool* need_skip, Slice* skip_until);
+  void InvokeFilterIfNeeded(bool* need_skip, Slice* skip_until);

  // Given a sequence number, return the sequence number of the
  // earliest snapshot that this sequence number is visible in.
@@ -169,11 +162,10 @@ class CompactionIterator {
  bool report_detailed_time_;
  bool expect_valid_internal_key_;
  CompactionRangeDelAggregator* range_del_agg_;
-  BlobFileBuilder* blob_file_builder_;
  std::unique_ptr<CompactionProxy> compaction_;
  const CompactionFilter* compaction_filter_;
  const std::atomic<bool>* shutting_down_;
-  const std::atomic<int>* manual_compaction_paused_;
+  const std::atomic<bool>* manual_compaction_paused_;
  const SequenceNumber preserve_deletes_seqnum_;
  bool bottommost_level_;
  bool valid_ = false;
@@ -218,7 +210,6 @@ class CompactionIterator {
  // PinnedIteratorsManager used to pin input_ Iterator blocks while reading
  // merge operands and then releasing them after consuming them.
  PinnedIteratorsManager pinned_iters_mgr_;
-  std::string blob_index_;
  std::string compaction_filter_value_;
  InternalKey compaction_filter_skip_until_;
  // "level_ptrs" holds indices that remember which file of an associated
@@ -235,8 +226,6 @@ class CompactionIterator {
  bool current_key_committed_;
  std::shared_ptr<Logger> info_log_;

-  bool allow_data_in_errors_;
-
  bool IsShuttingDown() {
    // This is a best-effort facility, so memory_order_relaxed is sufficient.
    return shutting_down_ && shutting_down_->load(std::memory_order_relaxed);
@@ -245,7 +234,7 @@ class CompactionIterator {
  bool IsPausingManualCompaction() {
    // This is a best-effort facility, so memory_order_relaxed is sufficient.
    return manual_compaction_paused_ &&
-           manual_compaction_paused_->load(std::memory_order_relaxed) > 0;
+           manual_compaction_paused_->load(std::memory_order_relaxed);
  }
 };
-}  // namespace ROCKSDB_NAMESPACE
+}  // namespace rocksdb
@@ -14,7 +14,7 @@
 #include "util/string_util.h"
 #include "utilities/merge_operators.h"

-namespace ROCKSDB_NAMESPACE {
+namespace rocksdb {

 // Expects no merging attempts.
 class NoMergingMergeOp : public MergeOperator {
@@ -169,15 +169,13 @@ class FakeCompaction : public CompactionIterator::CompactionProxy {
  Slice GetLargestUserKey() const override {
    return "\xff\xff\xff\xff\xff\xff\xff\xff\xff";
  }
-  bool allow_ingest_behind() const override { return is_allow_ingest_behind; }
+  bool allow_ingest_behind() const override { return false; }

  bool preserve_deletes() const override { return false; }

  bool key_not_exists_beyond_output_level = false;

  bool is_bottommost_level = false;
-
-  bool is_allow_ingest_behind = false;
 };

 // A simplifed snapshot checker which assumes each snapshot has a global
@@ -239,7 +237,6 @@ class CompactionIteratorTest : public testing::TestWithParam<bool> {
    if (filter || bottommost_level) {
      compaction_proxy_ = new FakeCompaction();
      compaction_proxy_->is_bottommost_level = bottommost_level;
-      compaction_proxy_->is_allow_ingest_behind = AllowIngestBehind();
      compaction.reset(compaction_proxy_);
    }
    bool use_snapshot_checker = UseSnapshotChecker() || GetParam();
@@ -258,9 +255,7 @@ class CompactionIteratorTest : public testing::TestWithParam<bool> {
        iter_.get(), cmp_, merge_helper_.get(), last_sequence, &snapshots_,
        earliest_write_conflict_snapshot, snapshot_checker_.get(),
        Env::Default(), false /* report_detailed_time */, false,
-        range_del_agg_.get(), nullptr /* blob_file_builder */,
-        false /*allow_data_in_errors*/, std::move(compaction), filter,
-        &shutting_down_));
+        range_del_agg_.get(), std::move(compaction), filter, &shutting_down_));
  }

  void AddSnapshot(SequenceNumber snapshot,
@@ -271,8 +266,6 @@ class CompactionIteratorTest : public testing::TestWithParam<bool> {

  virtual bool UseSnapshotChecker() const { return false; }

-  virtual bool AllowIngestBehind() const { return false; }
-
  void RunTest(
      const std::vector<std::string>& input_keys,
      const std::vector<std::string>& input_values,
@@ -295,7 +288,6 @@ class CompactionIteratorTest : public testing::TestWithParam<bool> {
      ASSERT_EQ(expected_values[i], c_iter_->value().ToString()) << info;
      c_iter_->Next();
    }
-    ASSERT_OK(c_iter_->status());
    ASSERT_FALSE(c_iter_->Valid());
  }

@@ -320,7 +312,6 @@ TEST_P(CompactionIteratorTest, EmptyResult) {
                 test::KeyStr("a", 3, kTypeValue)},
                {"", "val"}, {}, {}, 5);
  c_iter_->SeekToFirst();
-  ASSERT_OK(c_iter_->status());
  ASSERT_FALSE(c_iter_->Valid());
 }

@@ -342,7 +333,6 @@ TEST_P(CompactionIteratorTest, CorruptionAfterSingleDeletion) {
  ASSERT_TRUE(c_iter_->Valid());
  ASSERT_EQ(test::KeyStr("b", 10, kTypeValue), c_iter_->key().ToString());
  c_iter_->Next();
-  ASSERT_OK(c_iter_->status());
  ASSERT_FALSE(c_iter_->Valid());
 }

@@ -359,7 +349,6 @@ TEST_P(CompactionIteratorTest, SimpleRangeDeletion) {
  ASSERT_TRUE(c_iter_->Valid());
  ASSERT_EQ(test::KeyStr("night", 3, kTypeValue), c_iter_->key().ToString());
  c_iter_->Next();
-  ASSERT_OK(c_iter_->status());
  ASSERT_FALSE(c_iter_->Valid());
 }

@@ -381,7 +370,6 @@ TEST_P(CompactionIteratorTest, RangeDeletionWithSnapshots) {
  ASSERT_TRUE(c_iter_->Valid());
  ASSERT_EQ(test::KeyStr("night", 40, kTypeValue), c_iter_->key().ToString());
  c_iter_->Next();
-  ASSERT_OK(c_iter_->status());
  ASSERT_FALSE(c_iter_->Valid());
 }

@@ -475,7 +463,6 @@ TEST_P(CompactionIteratorTest, CompactionFilterSkipUntil) {
  ASSERT_EQ(test::KeyStr("h", 91, kTypeValue), c_iter_->key().ToString());
  ASSERT_EQ("hv91", c_iter_->value().ToString());
  c_iter_->Next();
-  ASSERT_OK(c_iter_->status());
  ASSERT_FALSE(c_iter_->Valid());

  // Check that the compaction iterator did the correct sequence of calls on
@@ -507,7 +494,7 @@ TEST_P(CompactionIteratorTest, ShuttingDownInFilter) {
  compaction_proxy_->key_not_exists_beyond_output_level = true;

  std::atomic<bool> seek_done{false};
-  ROCKSDB_NAMESPACE::port::Thread compaction_thread([&] {
+  rocksdb::port::Thread compaction_thread([&] {
    c_iter_->SeekToFirst();
    EXPECT_FALSE(c_iter_->Valid());
    EXPECT_TRUE(c_iter_->status().IsShutdownInProgress());
@@ -544,7 +531,7 @@ TEST_P(CompactionIteratorTest, ShuttingDownInMerge) {
  compaction_proxy_->key_not_exists_beyond_output_level = true;

  std::atomic<bool> seek_done{false};
-  ROCKSDB_NAMESPACE::port::Thread compaction_thread([&] {
+  rocksdb::port::Thread compaction_thread([&] {
    c_iter_->SeekToFirst();
    ASSERT_FALSE(c_iter_->Valid());
    ASSERT_TRUE(c_iter_->status().IsShutdownInProgress());
@@ -669,7 +656,6 @@ TEST_P(CompactionIteratorTest, SingleMergeOperand) {
  ASSERT_TRUE(c_iter_->Valid());
  ASSERT_EQ("bv1bv2", c_iter_->value().ToString());
  c_iter_->Next();
-  ASSERT_OK(c_iter_->status());
  ASSERT_EQ("cv1cv2", c_iter_->value().ToString());
 }

@@ -711,18 +697,6 @@ TEST_P(CompactionIteratorTest, RemoveSingleDeletionAtBottomLevel) {
          nullptr /*compaction_filter*/, true /*bottommost_level*/);
 }

-TEST_P(CompactionIteratorTest, ConvertToPutAtBottom) {
-  std::shared_ptr<MergeOperator> merge_op =
-      MergeOperators::CreateStringAppendOperator();
-  RunTest({test::KeyStr("a", 4, kTypeMerge), test::KeyStr("a", 3, kTypeMerge),
-           test::KeyStr("a", 2, kTypeMerge), test::KeyStr("b", 1, kTypeValue)},
-          {"a4", "a3", "a2", "b1"},
-          {test::KeyStr("a", 0, kTypeValue), test::KeyStr("b", 0, kTypeValue)},
-          {"a2,a3,a4", "b1"}, kMaxSequenceNumber /*last_committed_seq*/,
-          merge_op.get(), nullptr /*compaction_filter*/,
-          true /*bottomost_level*/);
-}
-
 INSTANTIATE_TEST_CASE_P(CompactionIteratorTestInstance, CompactionIteratorTest,
                        testing::Values(true, false));

@@ -994,46 +968,7 @@ TEST_F(CompactionIteratorWithSnapshotCheckerTest, CompactionFilter_FullMerge) {
      compaction_filter.get());
 }

-// Tests how CompactionIterator work together with AllowIngestBehind.
-class CompactionIteratorWithAllowIngestBehindTest
-    : public CompactionIteratorTest {
- public:
-  bool AllowIngestBehind() const override { return true; }
-};
-
-// When allow_ingest_behind is set, compaction iterator is not targeting
-// the bottommost level since there is no guarantee there won't be further
-// data ingested under the compaction output in future.
-TEST_P(CompactionIteratorWithAllowIngestBehindTest, NoConvertToPutAtBottom) {
-  std::shared_ptr<MergeOperator> merge_op =
-      MergeOperators::CreateStringAppendOperator();
-  RunTest({test::KeyStr("a", 4, kTypeMerge), test::KeyStr("a", 3, kTypeMerge),
-           test::KeyStr("a", 2, kTypeMerge), test::KeyStr("b", 1, kTypeValue)},
-          {"a4", "a3", "a2", "b1"},
-          {test::KeyStr("a", 4, kTypeMerge), test::KeyStr("b", 1, kTypeValue)},
-          {"a2,a3,a4", "b1"}, kMaxSequenceNumber /*last_committed_seq*/,
-          merge_op.get(), nullptr /*compaction_filter*/,
-          true /*bottomost_level*/);
-}
-
-TEST_P(CompactionIteratorWithAllowIngestBehindTest,
-       MergeToPutIfEncounteredPutAtBottom) {
-  std::shared_ptr<MergeOperator> merge_op =
-      MergeOperators::CreateStringAppendOperator();
-  RunTest({test::KeyStr("a", 4, kTypeMerge), test::KeyStr("a", 3, kTypeMerge),
-           test::KeyStr("a", 2, kTypeValue), test::KeyStr("b", 1, kTypeValue)},
-          {"a4", "a3", "a2", "b1"},
-          {test::KeyStr("a", 4, kTypeValue), test::KeyStr("b", 1, kTypeValue)},
-          {"a2,a3,a4", "b1"}, kMaxSequenceNumber /*last_committed_seq*/,
-          merge_op.get(), nullptr /*compaction_filter*/,
-          true /*bottomost_level*/);
-}
-
-INSTANTIATE_TEST_CASE_P(CompactionIteratorWithAllowIngestBehindTestInstance,
-                        CompactionIteratorWithAllowIngestBehindTest,
-                        testing::Values(true, false));
-
-}  // namespace ROCKSDB_NAMESPACE
+}  // namespace rocksdb

 int main(int argc, char** argv) {
  ::testing::InitGoogleTest(&argc, argv);
@@ -7,8 +7,6 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file. See the AUTHORS file for names of contributors.

-#include "db/compaction/compaction_job.h"
-
 #include <algorithm>
 #include <cinttypes>
 #include <functional>
@@ -21,6 +19,7 @@
 #include <vector>

 #include "db/builder.h"
+#include "db/compaction/compaction_job.h"
 #include "db/db_impl/db_impl.h"
 #include "db/db_iter.h"
 #include "db/dbformat.h"
@@ -32,7 +31,6 @@
 #include "db/memtable_list.h"
 #include "db/merge_context.h"
 #include "db/merge_helper.h"
-#include "db/output_validator.h"
 #include "db/range_del_aggregator.h"
 #include "db/version_set.h"
 #include "file/filename.h"
@@ -47,7 +45,6 @@
 #include "port/port.h"
 #include "rocksdb/db.h"
 #include "rocksdb/env.h"
-#include "rocksdb/sst_partitioner.h"
 #include "rocksdb/statistics.h"
 #include "rocksdb/status.h"
 #include "rocksdb/table.h"
@@ -57,13 +54,12 @@
 #include "table/table_builder.h"
 #include "test_util/sync_point.h"
 #include "util/coding.h"
-#include "util/hash.h"
 #include "util/mutexlock.h"
 #include "util/random.h"
 #include "util/stop_watch.h"
 #include "util/string_util.h"

-namespace ROCKSDB_NAMESPACE {
+namespace rocksdb {

 const char* GetCompactionReasonString(CompactionReason compaction_reason) {
  switch (compaction_reason) {
@@ -120,18 +116,9 @@ struct CompactionJob::SubcompactionState {
  // The return status of this subcompaction
  Status status;

-  // The return IO Status of this subcompaction
-  IOStatus io_status;
-
  // Files produced by this subcompaction
  struct Output {
-    Output(FileMetaData&& _meta, const InternalKeyComparator& _icmp,
-           bool _enable_order_check, bool _enable_hash)
-        : meta(std::move(_meta)),
-          validator(_icmp, _enable_order_check, _enable_hash),
-          finished(false) {}
    FileMetaData meta;
-    OutputValidator validator;
    bool finished;
    std::shared_ptr<const TableProperties> table_properties;
  };
@@ -140,10 +127,9 @@ struct CompactionJob::SubcompactionState {
  std::vector<Output> outputs;
  std::unique_ptr<WritableFileWriter> outfile;
  std::unique_ptr<TableBuilder> builder;
-
  Output* current_output() {
    if (outputs.empty()) {
-      // This subcompaction's output could be empty if compaction was aborted
+      // This subcompaction's outptut could be empty if compaction was aborted
      // before this subcompaction had a chance to generate any output files.
      // When subcompactions are executed sequentially this is more likely and
      // will be particulalry likely for the later subcompactions to be empty.
@@ -154,13 +140,13 @@ struct CompactionJob::SubcompactionState {
    }
  }

-  uint64_t current_output_file_size = 0;
+  uint64_t current_output_file_size;

  // State during the subcompaction
-  uint64_t total_bytes = 0;
-  uint64_t num_output_records = 0;
+  uint64_t total_bytes;
+  uint64_t num_output_records;
  CompactionJobStats compaction_job_stats;
-  uint64_t approx_size = 0;
+  uint64_t approx_size;
  // An index that used to speed up ShouldStopBefore().
  size_t grandparent_index = 0;
  // The number of bytes overlapping between the current output and
@@ -169,25 +155,49 @@ struct CompactionJob::SubcompactionState {
  // A flag determine whether the key has been seen in ShouldStopBefore()
  bool seen_key = false;

-  SubcompactionState(Compaction* c, Slice* _start, Slice* _end, uint64_t size)
-      : compaction(c), start(_start), end(_end), approx_size(size) {
+  SubcompactionState(Compaction* c, Slice* _start, Slice* _end,
+                     uint64_t size = 0)
+      : compaction(c),
+        start(_start),
+        end(_end),
+        outfile(nullptr),
+        builder(nullptr),
+        current_output_file_size(0),
+        total_bytes(0),
+        num_output_records(0),
+        approx_size(size),
+        grandparent_index(0),
+        overlapped_bytes(0),
+        seen_key(false) {
    assert(compaction != nullptr);
  }

-  // Adds the key and value to the builder
-  // If paranoid is true, adds the key-value to the paranoid hash
-  Status AddToBuilder(const Slice& key, const Slice& value) {
-    auto curr = current_output();
-    assert(builder != nullptr);
-    assert(curr != nullptr);
-    Status s = curr->validator.Add(key, value);
-    if (!s.ok()) {
-      return s;
-    }
-    builder->Add(key, value);
-    return Status::OK();
+  SubcompactionState(SubcompactionState&& o) { *this = std::move(o); }
+
+  SubcompactionState& operator=(SubcompactionState&& o) {
+    compaction = std::move(o.compaction);
+    start = std::move(o.start);
+    end = std::move(o.end);
+    status = std::move(o.status);
+    outputs = std::move(o.outputs);
+    outfile = std::move(o.outfile);
+    builder = std::move(o.builder);
+    current_output_file_size = std::move(o.current_output_file_size);
+    total_bytes = std::move(o.total_bytes);
+    num_output_records = std::move(o.num_output_records);
+    compaction_job_stats = std::move(o.compaction_job_stats);
+    approx_size = std::move(o.approx_size);
+    grandparent_index = std::move(o.grandparent_index);
+    overlapped_bytes = std::move(o.overlapped_bytes);
+    seen_key = std::move(o.seen_key);
+    return *this;
  }

+  // Because member std::unique_ptrs do not have these.
+  SubcompactionState(const SubcompactionState&) = delete;
+
+  SubcompactionState& operator=(const SubcompactionState&) = delete;
+
  // Returns true iff we should stop building the current output
  // before processing "internal_key".
  bool ShouldStopBefore(const Slice& internal_key, uint64_t curr_file_size) {
@@ -276,8 +286,10 @@ void CompactionJob::AggregateStatistics() {
    compact_->total_bytes += sc.total_bytes;
    compact_->num_output_records += sc.num_output_records;
  }
-  for (SubcompactionState& sc : compact_->sub_compact_states) {
-    compaction_job_stats_->Add(sc.compaction_job_stats);
+  if (compaction_job_stats_) {
+    for (SubcompactionState& sc : compact_->sub_compact_states) {
+      compaction_job_stats_->Add(sc.compaction_job_stats);
+    }
  }
 }

@@ -286,28 +298,23 @@ CompactionJob::CompactionJob(
    const FileOptions& file_options, VersionSet* versions,
    const std::atomic<bool>* shutting_down,
    const SequenceNumber preserve_deletes_seqnum, LogBuffer* log_buffer,
-    FSDirectory* db_directory, FSDirectory* output_directory, Statistics* stats,
+    Directory* db_directory, Directory* output_directory, Statistics* stats,
    InstrumentedMutex* db_mutex, ErrorHandler* db_error_handler,
    std::vector<SequenceNumber> existing_snapshots,
    SequenceNumber earliest_write_conflict_snapshot,
    const SnapshotChecker* snapshot_checker, std::shared_ptr<Cache> table_cache,
    EventLogger* event_logger, bool paranoid_file_checks, bool measure_io_stats,
    const std::string& dbname, CompactionJobStats* compaction_job_stats,
-    Env::Priority thread_pri, const std::shared_ptr<IOTracer>& io_tracer,
-    const std::atomic<int>* manual_compaction_paused, const std::string& db_id,
-    const std::string& db_session_id)
+    Env::Priority thread_pri, const std::atomic<bool>* manual_compaction_paused)
    : job_id_(job_id),
      compact_(new CompactionState(compaction)),
      compaction_job_stats_(compaction_job_stats),
      compaction_stats_(compaction->compaction_reason(), 1),
      dbname_(dbname),
-      db_id_(db_id),
-      db_session_id_(db_session_id),
      db_options_(db_options),
      file_options_(file_options),
      env_(db_options.env),
-      io_tracer_(io_tracer),
-      fs_(db_options.fs, io_tracer),
+      fs_(db_options.fs.get()),
      file_options_for_read_(
          fs_->OptimizeForCompactionTableRead(file_options, db_options_)),
      versions_(versions),
@@ -330,7 +337,6 @@ CompactionJob::CompactionJob(
      measure_io_stats_(measure_io_stats),
      write_hint_(Env::WLTH_NOT_SET),
      thread_pri_(thread_pri) {
-  assert(compaction_job_stats_ != nullptr);
  assert(log_buffer_ != nullptr);
  const auto* cfd = compact_->compaction->column_family_data();
  ThreadStatusUtil::SetColumnFamily(cfd, cfd->ioptions()->env,
@@ -382,9 +388,10 @@ void CompactionJob::ReportStartedCompaction(Compaction* compaction) {
  // to ensure GetThreadList() can always show them all together.
  ThreadStatusUtil::SetThreadOperation(ThreadStatus::OP_COMPACTION);

-  compaction_job_stats_->is_manual_compaction =
-      compaction->is_manual_compaction();
-  compaction_job_stats_->is_full_compaction = compaction->is_full_compaction();
+  if (compaction_job_stats_) {
+    compaction_job_stats_->is_manual_compaction =
+        compaction->is_manual_compaction();
+  }
 }

 void CompactionJob::Prepare() {
@@ -416,11 +423,7 @@ void CompactionJob::Prepare() {
    RecordInHistogram(stats_, NUM_SUBCOMPACTIONS_SCHEDULED,
                      compact_->sub_compact_states.size());
  } else {
-    constexpr Slice* start = nullptr;
-    constexpr Slice* end = nullptr;
-    constexpr uint64_t size = 0;
-
-    compact_->sub_compact_states.emplace_back(c, start, end, size);
+    compact_->sub_compact_states.emplace_back(c, nullptr, nullptr);
  }
 }

@@ -539,7 +542,7 @@ void CompactionJob::GenSubcompactionBoundaries() {
    // Greedily add ranges to the subcompaction until the sum of the ranges'
    // sizes becomes >= the expected mean size of a subcompaction
    sum = 0;
-    for (size_t i = 0; i + 1 < ranges.size(); i++) {
+    for (size_t i = 0; i < ranges.size() - 1; i++) {
      sum += ranges[i].size;
      if (subcompactions == 1) {
        // If there's only one left to schedule then it goes to the end so no
@@ -603,42 +606,33 @@ Status CompactionJob::Run() {

  // Check if any thread encountered an error during execution
  Status status;
-  IOStatus io_s;
  for (const auto& state : compact_->sub_compact_states) {
    if (!state.status.ok()) {
      status = state.status;
-      io_s = state.io_status;
      break;
    }
  }
-  if (io_status_.ok()) {
-    io_status_ = io_s;
-  }
+
  if (status.ok() && output_directory_) {
-    io_s = output_directory_->Fsync(IOOptions(), nullptr);
-  }
-  if (io_status_.ok()) {
-    io_status_ = io_s;
-  }
-  if (status.ok()) {
-    status = io_s;
+    status = output_directory_->Fsync();
  }
+
  if (status.ok()) {
    thread_pool.clear();
-    std::vector<const CompactionJob::SubcompactionState::Output*> files_output;
+    std::vector<const FileMetaData*> files_meta;
    for (const auto& state : compact_->sub_compact_states) {
      for (const auto& output : state.outputs) {
-        files_output.emplace_back(&output);
+        files_meta.emplace_back(&output.meta);
      }
    }
    ColumnFamilyData* cfd = compact_->compaction->column_family_data();
    auto prefix_extractor =
        compact_->compaction->mutable_cf_options()->prefix_extractor.get();
-    std::atomic<size_t> next_file_idx(0);
+    std::atomic<size_t> next_file_meta_idx(0);
    auto verify_table = [&](Status& output_status) {
      while (true) {
-        size_t file_idx = next_file_idx.fetch_add(1);
-        if (file_idx >= files_output.size()) {
+        size_t file_idx = next_file_meta_idx.fetch_add(1);
+        if (file_idx >= files_meta.size()) {
          break;
        }
        // Verify that the table is usable
@@ -647,40 +641,21 @@ Status CompactionJob::Run() {
        // No matter whether use_direct_io_for_flush_and_compaction is true,
        // we will regard this verification as user reads since the goal is
        // to cache it here for further user reads
-        ReadOptions read_options;
        InternalIterator* iter = cfd->table_cache()->NewIterator(
-            read_options, file_options_, cfd->internal_comparator(),
-            files_output[file_idx]->meta, /*range_del_agg=*/nullptr,
-            prefix_extractor,
+            ReadOptions(), file_options_, cfd->internal_comparator(),
+            *files_meta[file_idx], /*range_del_agg=*/nullptr, prefix_extractor,
            /*table_reader_ptr=*/nullptr,
            cfd->internal_stats()->GetFileReadHist(
                compact_->compaction->output_level()),
            TableReaderCaller::kCompactionRefill, /*arena=*/nullptr,
            /*skip_filters=*/false, compact_->compaction->output_level(),
-            MaxFileSizeForL0MetaPin(
-                *compact_->compaction->mutable_cf_options()),
            /*smallest_compaction_key=*/nullptr,
-            /*largest_compaction_key=*/nullptr,
-            /*allow_unprepared_value=*/false);
+            /*largest_compaction_key=*/nullptr);
        auto s = iter->status();

        if (s.ok() && paranoid_file_checks_) {
-          OutputValidator validator(cfd->internal_comparator(),
-                                    /*_enable_order_check=*/true,
-                                    /*_enable_hash=*/true);
-          for (iter->SeekToFirst(); iter->Valid(); iter->Next()) {
-            s = validator.Add(iter->key(), iter->value());
-            if (!s.ok()) {
-              break;
-            }
-          }
-          if (s.ok()) {
-            s = iter->status();
-          }
-          if (s.ok() &&
-              !validator.CompareValidator(files_output[file_idx]->validator)) {
-            s = Status::Corruption("Paranoid checksums do not match");
-          }
+          for (iter->SeekToFirst(); iter->Valid(); iter->Next()) {}
+          s = iter->status();
        }

        delete iter;
@@ -741,9 +716,6 @@ Status CompactionJob::Install(const MutableCFOptions& mutable_cf_options) {
  if (status.ok()) {
    status = InstallCompactionResults(mutable_cf_options);
  }
-  if (!versions_->io_status().ok()) {
-    io_status_ = versions_->io_status();
-  }
  VersionStorageInfo::LevelSummaryStorage tmp;
  auto vstorage = cfd->current()->storage_info();
  const auto& stats = compaction_stats_;
@@ -802,12 +774,14 @@ Status CompactionJob::Install(const MutableCFOptions& mutable_cf_options) {
         << compact_->sub_compact_states.size() << "output_compression"
         << CompressionTypeToString(compact_->compaction->output_compression());

-  stream << "num_single_delete_mismatches"
-         << compaction_job_stats_->num_single_del_mismatch;
-  stream << "num_single_delete_fallthrough"
-         << compaction_job_stats_->num_single_del_fallthru;
+  if (compaction_job_stats_ != nullptr) {
+    stream << "num_single_delete_mismatches"
+           << compaction_job_stats_->num_single_del_mismatch;
+    stream << "num_single_delete_fallthrough"
+           << compaction_job_stats_->num_single_del_fallthru;
+  }

-  if (measure_io_stats_) {
+  if (measure_io_stats_ && compaction_job_stats_ != nullptr) {
    stream << "file_write_nanos" << compaction_job_stats_->file_write_nanos;
    stream << "file_range_sync_nanos"
           << compaction_job_stats_->file_range_sync_nanos;
@@ -853,20 +827,11 @@ void CompactionJob::ProcessKeyValueCompaction(SubcompactionState* sub_compact) {

  CompactionRangeDelAggregator range_del_agg(&cfd->internal_comparator(),
                                             existing_snapshots_);
-  ReadOptions read_options;
-  read_options.verify_checksums = true;
-  read_options.fill_cache = false;
-  // Compaction iterators shouldn't be confined to a single prefix.
-  // Compactions use Seek() for
-  // (a) concurrent compactions,
-  // (b) CompactionFilter::Decision::kRemoveAndSkipUntil.
-  read_options.total_order_seek = true;

  // Although the v2 aggregator is what the level iterator(s) know about,
  // the AddTombstones calls will be propagated down to the v1 aggregator.
-  std::unique_ptr<InternalIterator> input(
-      versions_->MakeInputIterator(read_options, sub_compact->compaction,
-                                   &range_del_agg, file_options_for_read_));
+  std::unique_ptr<InternalIterator> input(versions_->MakeInputIterator(
+      sub_compact->compaction, &range_del_agg, file_options_for_read_));

  AutoThreadOperationStageUpdater stage_updater(
      ThreadStatus::STAGE_COMPACTION_PROCESS_KV);
@@ -903,7 +868,7 @@ void CompactionJob::ProcessKeyValueCompaction(SubcompactionState* sub_compact) {
  TEST_SYNC_POINT_CALLBACK(
      "CompactionJob::Run():PausingManualCompaction:1",
      reinterpret_cast<void*>(
-          const_cast<std::atomic<int>*>(manual_compaction_paused_)));
+          const_cast<std::atomic<bool>*>(manual_compaction_paused_)));

  Slice* start = sub_compact->start;
  Slice* end = sub_compact->end;
@@ -919,11 +884,9 @@ void CompactionJob::ProcessKeyValueCompaction(SubcompactionState* sub_compact) {
  sub_compact->c_iter.reset(new CompactionIterator(
      input.get(), cfd->user_comparator(), &merge, versions_->LastSequence(),
      &existing_snapshots_, earliest_write_conflict_snapshot_,
-      snapshot_checker_, env_, ShouldReportDetailedTime(env_, stats_),
-      /*expect_valid_internal_key=*/true, &range_del_agg,
-      /* blob_file_builder */ nullptr, db_options_.allow_data_in_errors,
-      sub_compact->compaction, compaction_filter, shutting_down_,
-      preserve_deletes_seqnum_, manual_compaction_paused_,
+      snapshot_checker_, env_, ShouldReportDetailedTime(env_, stats_), false,
+      &range_del_agg, sub_compact->compaction, compaction_filter,
+      shutting_down_, preserve_deletes_seqnum_, manual_compaction_paused_,
      db_options_.info_log));
  auto c_iter = sub_compact->c_iter.get();
  c_iter->SeekToFirst();
@@ -936,12 +899,6 @@ void CompactionJob::ProcessKeyValueCompaction(SubcompactionState* sub_compact) {
  }
  const auto& c_iter_stats = c_iter->iter_stats();

-  std::unique_ptr<SstPartitioner> partitioner =
-      sub_compact->compaction->output_level() == 0
-          ? nullptr
-          : sub_compact->compaction->CreateSstPartitioner();
-  std::string last_key_for_partitioner;
-
  while (status.ok() && !cfd->IsDropped() && c_iter->Valid()) {
    // Invariant: c_iter.status() is guaranteed to be OK if c_iter->Valid()
    // returns true.
@@ -968,13 +925,10 @@ void CompactionJob::ProcessKeyValueCompaction(SubcompactionState* sub_compact) {
        break;
      }
    }
-    status = sub_compact->AddToBuilder(key, value);
-    if (!status.ok()) {
-      break;
-    }
-
-    sub_compact->current_output_file_size =
-        sub_compact->builder->EstimatedFileSize();
+    assert(sub_compact->builder != nullptr);
+    assert(sub_compact->current_output() != nullptr);
+    sub_compact->builder->Add(key, value);
+    sub_compact->current_output_file_size = sub_compact->builder->FileSize();
    const ParsedInternalKey& ikey = c_iter->ikey();
    sub_compact->current_output()->meta.UpdateBoundaries(
        key, value, ikey.sequence, ikey.type);
@@ -989,39 +943,33 @@ void CompactionJob::ProcessKeyValueCompaction(SubcompactionState* sub_compact) {
    // going to be 1.2MB and max_output_file_size = 1MB, prefer to have 0.6MB
    // and 0.6MB instead of 1MB and 0.2MB)
    bool output_file_ended = false;
+    Status input_status;
    if (sub_compact->compaction->output_level() != 0 &&
        sub_compact->current_output_file_size >=
            sub_compact->compaction->max_output_file_size()) {
      // (1) this key terminates the file. For historical reasons, the iterator
      // status before advancing will be given to FinishCompactionOutputFile().
+      input_status = input->status();
      output_file_ended = true;
    }
    TEST_SYNC_POINT_CALLBACK(
        "CompactionJob::Run():PausingManualCompaction:2",
        reinterpret_cast<void*>(
-            const_cast<std::atomic<int>*>(manual_compaction_paused_)));
-    if (partitioner.get()) {
-      last_key_for_partitioner.assign(c_iter->user_key().data_,
-                                      c_iter->user_key().size_);
-    }
+            const_cast<std::atomic<bool>*>(manual_compaction_paused_)));
    c_iter->Next();
    if (c_iter->status().IsManualCompactionPaused()) {
      break;
    }
-    if (!output_file_ended && c_iter->Valid()) {
-      if (((partitioner.get() &&
-            partitioner->ShouldPartition(PartitionerRequest(
-                last_key_for_partitioner, c_iter->user_key(),
-                sub_compact->current_output_file_size)) == kRequired) ||
-           (sub_compact->compaction->output_level() != 0 &&
-            sub_compact->ShouldStopBefore(
-                c_iter->key(), sub_compact->current_output_file_size))) &&
-          sub_compact->builder != nullptr) {
-        // (2) this key belongs to the next file. For historical reasons, the
-        // iterator status after advancing will be given to
-        // FinishCompactionOutputFile().
-        output_file_ended = true;
-      }
+    if (!output_file_ended && c_iter->Valid() &&
+        sub_compact->compaction->output_level() != 0 &&
+        sub_compact->ShouldStopBefore(c_iter->key(),
+                                      sub_compact->current_output_file_size) &&
+        sub_compact->builder != nullptr) {
+      // (2) this key belongs to the next file. For historical reasons, the
+      // iterator status after advancing will be given to
+      // FinishCompactionOutputFile().
+      input_status = input->status();
+      output_file_ended = true;
    }
    if (output_file_ended) {
      const Slice* next_key = nullptr;
@@ -1029,9 +977,9 @@ void CompactionJob::ProcessKeyValueCompaction(SubcompactionState* sub_compact) {
        next_key = &c_iter->key();
      }
      CompactionIterationStats range_del_out_stats;
-      status = FinishCompactionOutputFile(input->status(), sub_compact,
-                                          &range_del_agg, &range_del_out_stats,
-                                          next_key);
+      status =
+          FinishCompactionOutputFile(input_status, sub_compact, &range_del_agg,
+                                     &range_del_out_stats, next_key);
      RecordDroppedKeys(range_del_out_stats,
                        &sub_compact->compaction_job_stats);
    }
@@ -1065,7 +1013,7 @@ void CompactionJob::ProcessKeyValueCompaction(SubcompactionState* sub_compact) {
  }
  if ((status.ok() || status.IsColumnFamilyDropped()) &&
      (manual_compaction_paused_ &&
-       manual_compaction_paused_->load(std::memory_order_relaxed) > 0)) {
+       manual_compaction_paused_->load(std::memory_order_relaxed))) {
    status = Status::Incomplete(Status::SubCode::kManualCompactionPaused);
  }
  if (status.ok()) {
@@ -1087,7 +1035,7 @@ void CompactionJob::ProcessKeyValueCompaction(SubcompactionState* sub_compact) {
    CompactionIterationStats range_del_out_stats;
    Status s = FinishCompactionOutputFile(status, sub_compact, &range_del_agg,
                                          &range_del_out_stats);
-    if (!s.ok() && status.ok()) {
+    if (status.ok()) {
      status = s;
    }
    RecordDroppedKeys(range_del_out_stats, &sub_compact->compaction_job_stats);
@@ -1113,16 +1061,6 @@ void CompactionJob::ProcessKeyValueCompaction(SubcompactionState* sub_compact) {
      SetPerfLevel(prev_perf_level);
    }
  }
-#ifdef ROCKSDB_ASSERT_STATUS_CHECKED
-  if (!status.ok()) {
-    if (sub_compact->c_iter) {
-      sub_compact->c_iter->status().PermitUncheckedError();
-    }
-    if (input) {
-      input->status().PermitUncheckedError();
-    }
-  }
-#endif  // ROCKSDB_ASSERT_STATUS_CHECKED

  sub_compact->c_iter.reset();
  input.reset();
@@ -1183,8 +1121,6 @@ Status CompactionJob::FinishCompactionOutputFile(

  ColumnFamilyData* cfd = sub_compact->compaction->column_family_data();
  const Comparator* ucmp = cfd->user_comparator();
-  std::string file_checksum = kUnknownFileChecksum;
-  std::string file_checksum_func_name = kUnknownFileChecksumFuncName;

  // Check for iterator errors
  Status s = input_status;
@@ -1258,7 +1194,6 @@ Status CompactionJob::FinishCompactionOutputFile(
    } else {
      it->SeekToFirst();
    }
-    TEST_SYNC_POINT("CompactionJob::FinishCompactionOutputFile1");
    for (; it->Valid(); it->Next()) {
      auto tombstone = it->Tombstone();
      if (upper_bound != nullptr) {
@@ -1286,7 +1221,6 @@ Status CompactionJob::FinishCompactionOutputFile(
      auto kv = tombstone.Serialize();
      assert(lower_bound == nullptr ||
             ucmp->Compare(*lower_bound, kv.second) < 0);
-      // Range tombstone is not supported by output validator yet.
      sub_compact->builder->Add(kv.first.Encode(), kv.second);
      InternalKey smallest_candidate = std::move(kv.first);
      if (lower_bound != nullptr &&
@@ -1360,10 +1294,6 @@ Status CompactionJob::FinishCompactionOutputFile(
  } else {
    sub_compact->builder->Abandon();
  }
-  IOStatus io_s = sub_compact->builder->io_status();
-  if (s.ok()) {
-    s = io_s;
-  }
  const uint64_t current_bytes = sub_compact->builder->FileSize();
  if (s.ok()) {
    meta->fd.file_size = current_bytes;
@@ -1374,27 +1304,10 @@ Status CompactionJob::FinishCompactionOutputFile(
  // Finish and check for file errors
  if (s.ok()) {
    StopWatch sw(env_, stats_, COMPACTION_OUTFILE_SYNC_MICROS);
-    io_s = sub_compact->outfile->Sync(db_options_.use_fsync);
-  }
-  if (s.ok() && io_s.ok()) {
-    io_s = sub_compact->outfile->Close();
-  }
-  if (s.ok() && io_s.ok()) {
-    // Add the checksum information to file metadata.
-    meta->file_checksum = sub_compact->outfile->GetFileChecksum();
-    meta->file_checksum_func_name =
-        sub_compact->outfile->GetFileChecksumFuncName();
-    file_checksum = meta->file_checksum;
-    file_checksum_func_name = meta->file_checksum_func_name;
+    s = sub_compact->outfile->Sync(db_options_.use_fsync);
  }
  if (s.ok()) {
-    s = io_s;
-  }
-  if (sub_compact->io_status.ok()) {
-    sub_compact->io_status = io_s;
-    // Since this error is really a copy of the
-    // "normal" status, it does not also need to be checked
-    sub_compact->io_status.PermitUncheckedError();
+    s = sub_compact->outfile->Close();
  }
  sub_compact->outfile.reset();

@@ -1445,18 +1358,14 @@ Status CompactionJob::FinishCompactionOutputFile(
  EventHelpers::LogAndNotifyTableFileCreationFinished(
      event_logger_, cfd->ioptions()->listeners, dbname_, cfd->GetName(), fname,
      job_id_, output_fd, oldest_blob_file_number, tp,
-      TableFileCreationReason::kCompaction, s, file_checksum,
-      file_checksum_func_name);
+      TableFileCreationReason::kCompaction, s);

 #ifndef ROCKSDB_LITE
  // Report new file to SstFileManagerImpl
  auto sfm =
      static_cast<SstFileManagerImpl*>(db_options_.sst_file_manager.get());
  if (sfm && meta != nullptr && meta->fd.GetPathId() == 0) {
-    Status add_s = sfm->OnAddFile(fname);
-    if (!add_s.ok() && s.ok()) {
-      s = add_s;
-    }
+    sfm->OnAddFile(fname);
    if (sfm->IsMaxAllowedSpaceReached()) {
      // TODO(ajkr): should we return OK() if max space was reached by the final
      // compaction output file (similarly to how flush works when full)?
@@ -1465,9 +1374,7 @@ Status CompactionJob::FinishCompactionOutputFile(
          "CompactionJob::FinishCompactionOutputFile:"
          "MaxAllowedSpaceReached");
      InstrumentedMutexLock l(db_mutex_);
-      // Should handle return error?
-      db_error_handler_->SetBGError(s, BackgroundErrorReason::kCompaction)
-          .PermitUncheckedError();
+      db_error_handler_->SetBGError(s, BackgroundErrorReason::kCompaction);
    }
  }
 #endif
@@ -1518,22 +1425,10 @@ Status CompactionJob::InstallCompactionResults(

 void CompactionJob::RecordCompactionIOStats() {
  RecordTick(stats_, COMPACT_READ_BYTES, IOSTATS(bytes_read));
-  RecordTick(stats_, COMPACT_WRITE_BYTES, IOSTATS(bytes_written));
-  CompactionReason compaction_reason =
-      compact_->compaction->compaction_reason();
-  if (compaction_reason == CompactionReason::kFilesMarkedForCompaction) {
-    RecordTick(stats_, COMPACT_READ_BYTES_MARKED, IOSTATS(bytes_read));
-    RecordTick(stats_, COMPACT_WRITE_BYTES_MARKED, IOSTATS(bytes_written));
-  } else if (compaction_reason == CompactionReason::kPeriodicCompaction) {
-    RecordTick(stats_, COMPACT_READ_BYTES_PERIODIC, IOSTATS(bytes_read));
-    RecordTick(stats_, COMPACT_WRITE_BYTES_PERIODIC, IOSTATS(bytes_written));
-  } else if (compaction_reason == CompactionReason::kTtl) {
-    RecordTick(stats_, COMPACT_READ_BYTES_TTL, IOSTATS(bytes_read));
-    RecordTick(stats_, COMPACT_WRITE_BYTES_TTL, IOSTATS(bytes_written));
-  }
  ThreadStatusUtil::IncreaseThreadOperationProperty(
      ThreadStatus::COMPACTION_BYTES_READ, IOSTATS(bytes_read));
  IOSTATS_RESET(bytes_read);
+  RecordTick(stats_, COMPACT_WRITE_BYTES, IOSTATS(bytes_written));
  ThreadStatusUtil::IncreaseThreadOperationProperty(
      ThreadStatus::COMPACTION_BYTES_WRITTEN, IOSTATS(bytes_written));
  IOSTATS_RESET(bytes_written);
@@ -1562,16 +1457,7 @@ Status CompactionJob::OpenCompactionOutputFile(
  TEST_SYNC_POINT_CALLBACK("CompactionJob::OpenCompactionOutputFile",
                           &syncpoint_arg);
 #endif
-  Status s;
-  IOStatus io_s =
-      NewWritableFile(fs_.get(), fname, &writable_file, file_options_);
-  s = io_s;
-  if (sub_compact->io_status.ok()) {
-    sub_compact->io_status = io_s;
-    // Since this error is really a copy of the io_s that is checked below as s,
-    // it does not also need to be checked.
-    sub_compact->io_status.PermitUncheckedError();
-  }
+  Status s = NewWritableFile(fs_, fname, &writable_file, file_options_);
  if (!s.ok()) {
    ROCKS_LOG_ERROR(
        db_options_.info_log,
@@ -1583,8 +1469,7 @@ Status CompactionJob::OpenCompactionOutputFile(
    EventHelpers::LogAndNotifyTableFileCreationFinished(
        event_logger_, cfd->ioptions()->listeners, dbname_, cfd->GetName(),
        fname, job_id_, FileDescriptor(), kInvalidBlobFileNumber,
-        TableProperties(), TableFileCreationReason::kCompaction, s,
-        kUnknownFileChecksum, kUnknownFileChecksumFuncName);
+        TableProperties(), TableFileCreationReason::kCompaction, s);
    return s;
  }

@@ -1606,17 +1491,13 @@ Status CompactionJob::OpenCompactionOutputFile(

  // Initialize a SubcompactionState::Output and add it to sub_compact->outputs
  {
-    FileMetaData meta;
-    meta.fd = FileDescriptor(file_number,
-                             sub_compact->compaction->output_path_id(), 0);
-    meta.oldest_ancester_time = oldest_ancester_time;
-    meta.file_creation_time = current_time;
-    sub_compact->outputs.emplace_back(
-        std::move(meta), cfd->internal_comparator(),
-        /*enable_order_check=*/
-        sub_compact->compaction->mutable_cf_options()
-            ->check_flush_compaction_key_order,
-        /*enable_hash=*/paranoid_file_checks_);
+    SubcompactionState::Output out;
+    out.meta.fd = FileDescriptor(file_number,
+                                 sub_compact->compaction->output_path_id(), 0);
+    out.meta.oldest_ancester_time = oldest_ancester_time;
+    out.meta.file_creation_time = current_time;
+    out.finished = false;
+    sub_compact->outputs.push_back(out);
  }

  writable_file->SetIOPriority(Env::IOPriority::IO_LOW);
@@ -1625,10 +1506,9 @@ Status CompactionJob::OpenCompactionOutputFile(
      sub_compact->compaction->OutputFilePreallocationSize()));
  const auto& listeners =
      sub_compact->compaction->immutable_cf_options()->listeners;
-  sub_compact->outfile.reset(new WritableFileWriter(
-      std::move(writable_file), fname, file_options_, env_, io_tracer_,
-      db_options_.statistics.get(), listeners,
-      db_options_.file_checksum_gen_factory.get()));
+  sub_compact->outfile.reset(
+      new WritableFileWriter(std::move(writable_file), fname, file_options_,
+                             env_, db_options_.statistics.get(), listeners));

  // If the Column family flag is to only optimize filters for hits,
  // we can skip creating filters if this is the bottommost_level where
@@ -1645,8 +1525,7 @@ Status CompactionJob::OpenCompactionOutputFile(
      sub_compact->compaction->output_compression_opts(),
      sub_compact->compaction->output_level(), skip_filters,
      oldest_ancester_time, 0 /* oldest_key_time */,
-      sub_compact->compaction->max_output_file_size(), current_time, db_id_,
-      db_session_id_));
+      sub_compact->compaction->max_output_file_size(), current_time));
  LogFlush(db_options_.info_log);
  return s;
 }
@@ -1669,9 +1548,6 @@ void CompactionJob::CleanupCompaction() {
        TableCache::Evict(table_cache_.get(), out.meta.fd.GetNumber());
      }
    }
-    // TODO: sub_compact.io_status is not checked like status. Not sure if thats
-    // intentional. So ignoring the io_status as of now.
-    sub_compact.io_status.PermitUncheckedError();
  }
  delete compact_;
  compact_ = nullptr;
@@ -1748,29 +1624,32 @@ void CompactionJob::UpdateCompactionInputStatsHelper(int* num_files,
 void CompactionJob::UpdateCompactionJobStats(
    const InternalStats::CompactionStats& stats) const {
 #ifndef ROCKSDB_LITE
-  compaction_job_stats_->elapsed_micros = stats.micros;
+  if (compaction_job_stats_) {
+    compaction_job_stats_->elapsed_micros = stats.micros;

-  // input information
-  compaction_job_stats_->total_input_bytes =
-      stats.bytes_read_non_output_levels + stats.bytes_read_output_level;
-  compaction_job_stats_->num_input_records = stats.num_input_records;
-  compaction_job_stats_->num_input_files =
-      stats.num_input_files_in_non_output_levels +
-      stats.num_input_files_in_output_level;
-  compaction_job_stats_->num_input_files_at_output_level =
-      stats.num_input_files_in_output_level;
+    // input information
+    compaction_job_stats_->total_input_bytes =
+        stats.bytes_read_non_output_levels + stats.bytes_read_output_level;
+    compaction_job_stats_->num_input_records = stats.num_input_records;
+    compaction_job_stats_->num_input_files =
+        stats.num_input_files_in_non_output_levels +
+        stats.num_input_files_in_output_level;
+    compaction_job_stats_->num_input_files_at_output_level =
+        stats.num_input_files_in_output_level;

-  // output information
-  compaction_job_stats_->total_output_bytes = stats.bytes_written;
-  compaction_job_stats_->num_output_records = compact_->num_output_records;
-  compaction_job_stats_->num_output_files = stats.num_output_files;
+    // output information
+    compaction_job_stats_->total_output_bytes = stats.bytes_written;
+    compaction_job_stats_->num_output_records = compact_->num_output_records;
+    compaction_job_stats_->num_output_files = stats.num_output_files;

-  if (compact_->NumOutputFiles() > 0U) {
-    CopyPrefix(compact_->SmallestUserKey(),
-               CompactionJobStats::kMaxPrefixLength,
-               &compaction_job_stats_->smallest_output_key_prefix);
-    CopyPrefix(compact_->LargestUserKey(), CompactionJobStats::kMaxPrefixLength,
-               &compaction_job_stats_->largest_output_key_prefix);
+    if (compact_->NumOutputFiles() > 0U) {
+      CopyPrefix(compact_->SmallestUserKey(),
+                 CompactionJobStats::kMaxPrefixLength,
+                 &compaction_job_stats_->smallest_output_key_prefix);
+      CopyPrefix(compact_->LargestUserKey(),
+                 CompactionJobStats::kMaxPrefixLength,
+                 &compaction_job_stats_->largest_output_key_prefix);
+    }
  }
 #else
  (void)stats;
@@ -1812,4 +1691,4 @@ void CompactionJob::LogCompaction() {
  }
 }

-}  // namespace ROCKSDB_NAMESPACE
+}  // namespace rocksdb
@@ -44,7 +44,7 @@
 #include "util/stop_watch.h"
 #include "util/thread_local.h"

-namespace ROCKSDB_NAMESPACE {
+namespace rocksdb {

 class Arena;
 class ErrorHandler;
@@ -62,23 +62,23 @@ class VersionSet;
 // if needed.
 class CompactionJob {
 public:
-  CompactionJob(
-      int job_id, Compaction* compaction, const ImmutableDBOptions& db_options,
-      const FileOptions& file_options, VersionSet* versions,
-      const std::atomic<bool>* shutting_down,
-      const SequenceNumber preserve_deletes_seqnum, LogBuffer* log_buffer,
-      FSDirectory* db_directory, FSDirectory* output_directory,
-      Statistics* stats, InstrumentedMutex* db_mutex,
-      ErrorHandler* db_error_handler,
-      std::vector<SequenceNumber> existing_snapshots,
-      SequenceNumber earliest_write_conflict_snapshot,
-      const SnapshotChecker* snapshot_checker,
-      std::shared_ptr<Cache> table_cache, EventLogger* event_logger,
-      bool paranoid_file_checks, bool measure_io_stats,
-      const std::string& dbname, CompactionJobStats* compaction_job_stats,
-      Env::Priority thread_pri, const std::shared_ptr<IOTracer>& io_tracer,
-      const std::atomic<int>* manual_compaction_paused = nullptr,
-      const std::string& db_id = "", const std::string& db_session_id = "");
+  CompactionJob(int job_id, Compaction* compaction,
+                const ImmutableDBOptions& db_options,
+                const FileOptions& file_options, VersionSet* versions,
+                const std::atomic<bool>* shutting_down,
+                const SequenceNumber preserve_deletes_seqnum,
+                LogBuffer* log_buffer, Directory* db_directory,
+                Directory* output_directory, Statistics* stats,
+                InstrumentedMutex* db_mutex, ErrorHandler* db_error_handler,
+                std::vector<SequenceNumber> existing_snapshots,
+                SequenceNumber earliest_write_conflict_snapshot,
+                const SnapshotChecker* snapshot_checker,
+                std::shared_ptr<Cache> table_cache, EventLogger* event_logger,
+                bool paranoid_file_checks, bool measure_io_stats,
+                const std::string& dbname,
+                CompactionJobStats* compaction_job_stats,
+                Env::Priority thread_pri,
+                const std::atomic<bool>* manual_compaction_paused = nullptr);

  ~CompactionJob();

@@ -100,9 +100,6 @@ class CompactionJob {
  // Add compaction input/output to the current version
  Status Install(const MutableCFOptions& mutable_cf_options);

-  // Return the IO status
-  IOStatus io_status() const { return io_status_; }
-
 private:
  struct SubcompactionState;

@@ -152,23 +149,20 @@ class CompactionJob {

  // DBImpl state
  const std::string& dbname_;
-  const std::string db_id_;
-  const std::string db_session_id_;
  const ImmutableDBOptions& db_options_;
  const FileOptions file_options_;

  Env* env_;
-  std::shared_ptr<IOTracer> io_tracer_;
-  FileSystemPtr fs_;
+  FileSystem* fs_;
  // env_option optimized for compaction table reads
  FileOptions file_options_for_read_;
  VersionSet* versions_;
  const std::atomic<bool>* shutting_down_;
-  const std::atomic<int>* manual_compaction_paused_;
+  const std::atomic<bool>* manual_compaction_paused_;
  const SequenceNumber preserve_deletes_seqnum_;
  LogBuffer* log_buffer_;
-  FSDirectory* db_directory_;
-  FSDirectory* output_directory_;
+  Directory* db_directory_;
+  Directory* output_directory_;
  Statistics* stats_;
  InstrumentedMutex* db_mutex_;
  ErrorHandler* db_error_handler_;
@@ -199,7 +193,6 @@ class CompactionJob {
  std::vector<uint64_t> sizes_;
  Env::WriteLifeTimeHint write_hint_;
  Env::Priority thread_pri_;
-  IOStatus io_status_;
 };

-}  // namespace ROCKSDB_NAMESPACE
+}  // namespace rocksdb
@@ -52,7 +52,6 @@
 #include "test_util/sync_point.h"
 #include "test_util/testharness.h"
 #include "test_util/testutil.h"
-#include "util/cast_util.h"
 #include "util/compression.h"
 #include "util/hash.h"
 #include "util/mutexlock.h"
@@ -62,7 +61,7 @@

 #if !defined(IOS_CROSS_COMPILE)
 #ifndef ROCKSDB_LITE
-namespace ROCKSDB_NAMESPACE {
+namespace rocksdb {

 static std::string RandomString(Random* rnd, int len, double ratio) {
  std::string r;
@@ -111,9 +110,9 @@ class CompactionJobStatsTest : public testing::Test,
  }

  ~CompactionJobStatsTest() override {
-    ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->DisableProcessing();
-    ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->LoadDependency({});
-    ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->ClearAllCallBacks();
+    rocksdb::SyncPoint::GetInstance()->DisableProcessing();
+    rocksdb::SyncPoint::GetInstance()->LoadDependency({});
+    rocksdb::SyncPoint::GetInstance()->ClearAllCallBacks();
    Close();
    Options options;
    options.db_paths.emplace_back(dbname_, 0);
@@ -127,7 +126,9 @@ class CompactionJobStatsTest : public testing::Test,
  static void SetUpTestCase() {}
  static void TearDownTestCase() {}

-  DBImpl* dbfull() { return static_cast_with_check<DBImpl>(db_); }
+  DBImpl* dbfull() {
+    return reinterpret_cast<DBImpl*>(db_);
+  }

  void CreateColumnFamilies(const std::vector<std::string>& cfs,
                            const Options& options) {
@@ -459,7 +460,6 @@ class CompactionJobStatsChecker : public EventListener {
    ASSERT_EQ(current_stats.num_output_files,
        stats.num_output_files);

-    ASSERT_EQ(current_stats.is_full_compaction, stats.is_full_compaction);
    ASSERT_EQ(current_stats.is_manual_compaction,
        stats.is_manual_compaction);

@@ -572,7 +572,7 @@ CompactionJobStats NewManualCompactionJobStats(
    uint64_t num_input_records, size_t key_size, size_t value_size,
    size_t num_output_files, uint64_t num_output_records,
    double compression_ratio, uint64_t num_records_replaced,
-    bool is_full = false, bool is_manual = true) {
+    bool is_manual = true) {
  CompactionJobStats stats;
  stats.Reset();

@@ -596,7 +596,6 @@ CompactionJobStats NewManualCompactionJobStats(
  stats.total_input_raw_value_bytes =
      num_input_records * value_size;

-  stats.is_full_compaction = is_full;
  stats.is_manual_compaction = is_manual;

  stats.num_records_replaced = num_records_replaced;
@@ -798,11 +797,11 @@ TEST_P(CompactionJobStatsTest, CompactionJobStatsTest) {
    }

    ASSERT_OK(Flush(1));
-    ASSERT_OK(static_cast_with_check<DBImpl>(db_)->TEST_WaitForCompact());
+    reinterpret_cast<DBImpl*>(db_)->TEST_WaitForCompact();

    stats_checker->set_verify_next_comp_io_stats(true);
    std::atomic<bool> first_prepare_write(true);
-    ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->SetCallBack(
+    rocksdb::SyncPoint::GetInstance()->SetCallBack(
        "WritableFileWriter::Append:BeforePrepareWrite", [&](void* /*arg*/) {
          if (first_prepare_write.load()) {
            options.env->SleepForMicroseconds(3);
@@ -811,7 +810,7 @@ TEST_P(CompactionJobStatsTest, CompactionJobStatsTest) {
        });

    std::atomic<bool> first_flush(true);
-    ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->SetCallBack(
+    rocksdb::SyncPoint::GetInstance()->SetCallBack(
        "WritableFileWriter::Flush:BeforeAppend", [&](void* /*arg*/) {
          if (first_flush.load()) {
            options.env->SleepForMicroseconds(3);
@@ -820,7 +819,7 @@ TEST_P(CompactionJobStatsTest, CompactionJobStatsTest) {
        });

    std::atomic<bool> first_sync(true);
-    ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->SetCallBack(
+    rocksdb::SyncPoint::GetInstance()->SetCallBack(
        "WritableFileWriter::SyncInternal:0", [&](void* /*arg*/) {
          if (first_sync.load()) {
            options.env->SleepForMicroseconds(3);
@@ -829,14 +828,14 @@ TEST_P(CompactionJobStatsTest, CompactionJobStatsTest) {
        });

    std::atomic<bool> first_range_sync(true);
-    ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->SetCallBack(
+    rocksdb::SyncPoint::GetInstance()->SetCallBack(
        "WritableFileWriter::RangeSync:0", [&](void* /*arg*/) {
          if (first_range_sync.load()) {
            options.env->SleepForMicroseconds(3);
            first_range_sync.store(false);
          }
        });
-    ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing();
+    rocksdb::SyncPoint::GetInstance()->EnableProcessing();

    Compact(1, smallest_key, largest_key);

@@ -845,7 +844,7 @@ TEST_P(CompactionJobStatsTest, CompactionJobStatsTest) {
    ASSERT_TRUE(!first_flush.load());
    ASSERT_TRUE(!first_sync.load());
    ASSERT_TRUE(!first_range_sync.load());
-    ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->DisableProcessing();
+    rocksdb::SyncPoint::GetInstance()->DisableProcessing();
  }
  ASSERT_EQ(stats_checker->NumberOfUnverifiedStats(), 0U);
 }
@@ -896,7 +895,7 @@ TEST_P(CompactionJobStatsTest, DeletionStatsTest) {
  CompactRangeOptions cr_options;
  cr_options.change_level = true;
  cr_options.target_level = 2;
-  ASSERT_OK(db_->CompactRange(cr_options, handles_[1], nullptr, nullptr));
+  db_->CompactRange(cr_options, handles_[1], nullptr, nullptr);
  ASSERT_GT(NumTableFilesAtLevel(2, 1), 0);

  // Stage 2: Generate files including keys from the entire key range
@@ -983,21 +982,26 @@ TEST_P(CompactionJobStatsTest, UniversalCompactionTest) {
    if (num_input_units == 0) {
      continue;
    }
-    // A full compaction only happens when the number of flushes equals to
-    // the number of compaction input runs.
-    bool is_full = num_flushes == num_input_units;
    // The following statement determines the expected smallest key
-    // based on whether it is a full compaction.
-    uint64_t smallest_key = is_full ? key_base : key_base * (num_flushes - 1);
+    // based on whether it is a full compaction.  A full compaction only
+    // happens when the number of flushes equals to the number of compaction
+    // input runs.
+    uint64_t smallest_key =
+        (num_flushes == num_input_units) ?
+            key_base : key_base * (num_flushes - 1);

-    stats_checker->AddExpectedStats(NewManualCompactionJobStats(
-        Key(smallest_key, 10),
-        Key(smallest_key + key_base * num_input_units - key_interval, 10),
-        num_input_units, num_input_units > 2 ? num_input_units / 2 : 0,
-        num_keys_per_table * num_input_units, kKeySize, kValueSize,
-        num_input_units, num_keys_per_table * num_input_units, 1.0, 0, is_full,
-        false));
-    ASSERT_OK(dbfull()->TEST_WaitForCompact());
+    stats_checker->AddExpectedStats(
+        NewManualCompactionJobStats(
+            Key(smallest_key, 10),
+            Key(smallest_key + key_base * num_input_units - key_interval, 10),
+            num_input_units,
+            num_input_units > 2 ? num_input_units / 2 : 0,
+            num_keys_per_table * num_input_units,
+            kKeySize, kValueSize,
+            num_input_units,
+            num_keys_per_table * num_input_units,
+            1.0, 0, false));
+    dbfull()->TEST_WaitForCompact();
  }
  ASSERT_EQ(stats_checker->NumberOfUnverifiedStats(), 3U);

@@ -1008,17 +1012,17 @@ TEST_P(CompactionJobStatsTest, UniversalCompactionTest) {
        &rnd, start_key, start_key + key_base - 1,
        kKeySize, kValueSize, key_interval,
        compression_ratio, 1);
-    ASSERT_OK(static_cast_with_check<DBImpl>(db_)->TEST_WaitForCompact());
+    reinterpret_cast<DBImpl*>(db_)->TEST_WaitForCompact();
  }
  ASSERT_EQ(stats_checker->NumberOfUnverifiedStats(), 0U);
 }

 INSTANTIATE_TEST_CASE_P(CompactionJobStatsTest, CompactionJobStatsTest,
                        ::testing::Values(1, 4));
-}  // namespace ROCKSDB_NAMESPACE
+}  // namespace rocksdb

 int main(int argc, char** argv) {
-  ROCKSDB_NAMESPACE::port::InstallStackTraceHandler();
+  rocksdb::port::InstallStackTraceHandler();
  ::testing::InitGoogleTest(&argc, argv);
  return RUN_ALL_TESTS();
 }
@@ -12,7 +12,7 @@
 #include <string>
 #include <tuple>

-#include "db/blob/blob_index.h"
+#include "db/blob_index.h"
 #include "db/column_family.h"
 #include "db/compaction/compaction_job.h"
 #include "db/db_impl/db_impl.h"
@@ -29,7 +29,7 @@
 #include "util/string_util.h"
 #include "utilities/merge_operators.h"

-namespace ROCKSDB_NAMESPACE {
+namespace rocksdb {

 namespace {

@@ -76,13 +76,12 @@ class CompactionJobTest : public testing::Test {
        dbname_(test::PerThreadDBPath("compaction_job_test")),
        db_options_(),
        mutable_cf_options_(cf_options_),
-        mutable_db_options_(),
        table_cache_(NewLRUCache(50000, 16)),
        write_buffer_manager_(db_options_.db_write_buffer_size),
-        versions_(new VersionSet(
-            dbname_, &db_options_, env_options_, table_cache_.get(),
-            &write_buffer_manager_, &write_controller_,
-            /*block_cache_tracer=*/nullptr, /*io_tracer=*/nullptr)),
+        versions_(new VersionSet(dbname_, &db_options_, env_options_,
+                                 table_cache_.get(), &write_buffer_manager_,
+                                 &write_controller_,
+                                 /*block_cache_tracer=*/nullptr)),
        shutting_down_(false),
        preserve_deletes_seqnum_(0),
        mock_table_factory_(new mock::MockTableFactory()),
@@ -130,7 +129,7 @@ class CompactionJobTest : public testing::Test {
    return blob_index;
  }

-  void AddMockFile(const mock::KVVector& contents, int level = 0) {
+  void AddMockFile(const stl_wrappers::KVMap& contents, int level = 0) {
    assert(contents.size() > 0);

    bool first_key = true;
@@ -144,7 +143,7 @@ class CompactionJobTest : public testing::Test {
      std::string skey;
      std::string value;
      std::tie(skey, value) = kv;
-      const Status pikStatus = ParseInternalKey(skey, &key);
+      bool parsed = ParseInternalKey(skey, &key);

      smallest_seqno = std::min(smallest_seqno, key.sequence);
      largest_seqno = std::max(largest_seqno, key.sequence);
@@ -162,7 +161,7 @@ class CompactionJobTest : public testing::Test {

      first_key = false;

-      if (pikStatus.ok() && key.type == kTypeBlobIndex) {
+      if (parsed && key.type == kTypeBlobIndex) {
        BlobIndex blob_index;
        const Status s = blob_index.DecodeFrom(value);
        if (!s.ok()) {
@@ -188,13 +187,11 @@ class CompactionJobTest : public testing::Test {
    VersionEdit edit;
    edit.AddFile(level, file_number, 0, 10, smallest_key, largest_key,
                 smallest_seqno, largest_seqno, false, oldest_blob_file_number,
-                 kUnknownOldestAncesterTime, kUnknownFileCreationTime,
-                 kUnknownFileChecksum, kUnknownFileChecksumFuncName);
+                 kUnknownOldestAncesterTime, kUnknownFileCreationTime);

    mutex_.Lock();
-    EXPECT_OK(
-        versions_->LogAndApply(versions_->GetColumnFamilySet()->GetDefault(),
-                               mutable_cf_options_, &edit, &mutex_));
+    versions_->LogAndApply(versions_->GetColumnFamilySet()->GetDefault(),
+                           mutable_cf_options_, &edit, &mutex_);
    mutex_.Unlock();
  }

@@ -205,8 +202,8 @@ class CompactionJobTest : public testing::Test {
  }

  // returns expected result after compaction
-  mock::KVVector CreateTwoFiles(bool gen_corrupted_keys) {
-    stl_wrappers::KVMap expected_results;
+  stl_wrappers::KVMap CreateTwoFiles(bool gen_corrupted_keys) {
+    auto expected_results = mock::MakeMockFile();
    const int kKeysPerFile = 10000;
    const int kCorruptKeysPerFile = 200;
    const int kMatchingKeys = kKeysPerFile / 2;
@@ -232,34 +229,28 @@ class CompactionJobTest : public testing::Test {
          test::CorruptKeyType(&internal_key);
          test::CorruptKeyType(&bottommost_internal_key);
        }
-        contents.push_back({internal_key.Encode().ToString(), value});
+        contents.insert({ internal_key.Encode().ToString(), value });
        if (i == 1 || k < kMatchingKeys || corrupt_id(k - kMatchingKeys)) {
          expected_results.insert(
-              {bottommost_internal_key.Encode().ToString(), value});
+              { bottommost_internal_key.Encode().ToString(), value });
        }
      }
-      mock::SortKVVector(&contents);

      AddMockFile(contents);
    }

    SetLastSequence(sequence_number);

-    mock::KVVector expected_results_kvvector;
-    for (auto& kv : expected_results) {
-      expected_results_kvvector.push_back({kv.first, kv.second});
-    }
-
-    return expected_results_kvvector;
+    return expected_results;
  }

  void NewDB() {
    DestroyDB(dbname_, Options());
    EXPECT_OK(env_->CreateDirIfMissing(dbname_));
-    versions_.reset(
-        new VersionSet(dbname_, &db_options_, env_options_, table_cache_.get(),
-                       &write_buffer_manager_, &write_controller_,
-                       /*block_cache_tracer=*/nullptr, /*io_tracer=*/nullptr));
+    versions_.reset(new VersionSet(dbname_, &db_options_, env_options_,
+                                   table_cache_.get(), &write_buffer_manager_,
+                                   &write_controller_,
+                                   /*block_cache_tracer=*/nullptr));
    compaction_job_stats_.Reset();
    SetIdentityFile(env_, dbname_);

@@ -289,9 +280,7 @@ class CompactionJobTest : public testing::Test {
    }
    ASSERT_OK(s);
    // Make "CURRENT" file that points to the new manifest file.
-    s = SetCurrentFile(fs_.get(), dbname_, 1, nullptr);
-
-    ASSERT_OK(s);
+    s = SetCurrentFile(env_, dbname_, 1, nullptr);

    std::vector<ColumnFamilyDescriptor> column_families;
    cf_options_.table_factory = mock_table_factory_;
@@ -305,7 +294,7 @@ class CompactionJobTest : public testing::Test {

  void RunCompaction(
      const std::vector<std::vector<FileMetaData*>>& input_files,
-      const mock::KVVector& expected_results,
+      const stl_wrappers::KVMap& expected_results,
      const std::vector<SequenceNumber>& snapshots = {},
      SequenceNumber earliest_write_conflict_snapshot = kMaxSequenceNumber,
      int output_level = 1, bool verify = true,
@@ -324,12 +313,11 @@ class CompactionJobTest : public testing::Test {
      num_input_files += level_files.size();
    }

-    Compaction compaction(
-        cfd->current()->storage_info(), *cfd->ioptions(),
-        *cfd->GetLatestMutableCFOptions(), mutable_db_options_,
-        compaction_input_files, output_level, 1024 * 1024, 10 * 1024 * 1024, 0,
-        kNoCompression, cfd->GetLatestMutableCFOptions()->compression_opts, 0,
-        {}, true);
+    Compaction compaction(cfd->current()->storage_info(), *cfd->ioptions(),
+                          *cfd->GetLatestMutableCFOptions(),
+                          compaction_input_files, output_level, 1024 * 1024,
+                          10 * 1024 * 1024, 0, kNoCompression,
+                          cfd->ioptions()->compression_opts, 0, {}, true);
    compaction.SetInputVersion(cfd->current());

    LogBuffer log_buffer(InfoLogLevel::INFO_LEVEL, db_options_.info_log.get());
@@ -343,7 +331,7 @@ class CompactionJobTest : public testing::Test {
        nullptr, nullptr, &mutex_, &error_handler_, snapshots,
        earliest_write_conflict_snapshot, snapshot_checker, table_cache_,
        &event_logger, false, false, dbname_, &compaction_job_stats_,
-        Env::Priority::USER, nullptr /* IOTracer */);
+        Env::Priority::USER);
    VerifyInitializationOfCompactionJobStats(compaction_job_stats_);

    compaction_job.Prepare();
@@ -351,10 +339,8 @@ class CompactionJobTest : public testing::Test {
    Status s;
    s = compaction_job.Run();
    ASSERT_OK(s);
-    ASSERT_OK(compaction_job.io_status());
    mutex_.Lock();
    ASSERT_OK(compaction_job.Install(*cfd->GetLatestMutableCFOptions()));
-    ASSERT_OK(compaction_job.io_status());
    mutex_.Unlock();

    if (verify) {
@@ -383,7 +369,6 @@ class CompactionJobTest : public testing::Test {
  ImmutableDBOptions db_options_;
  ColumnFamilyOptions cf_options_;
  MutableCFOptions mutable_cf_options_;
-  MutableDBOptions mutable_db_options_;
  std::shared_ptr<Cache> table_cache_;
  WriteController write_controller_;
  WriteBufferManager write_buffer_manager_;
@@ -409,7 +394,7 @@ TEST_F(CompactionJobTest, Simple) {
  RunCompaction({ files }, expected_results);
 }

-TEST_F(CompactionJobTest, DISABLED_SimpleCorrupted) {
+TEST_F(CompactionJobTest, SimpleCorrupted) {
  NewDB();

  auto expected_results = CreateTwoFiles(true);
@@ -650,7 +635,7 @@ TEST_F(CompactionJobTest, FilterAllMergeOperands) {
  SetLastSequence(11U);
  auto files = cfd_->current()->storage_info()->LevelFiles(0);

-  mock::KVVector empty_map;
+  stl_wrappers::KVMap empty_map;
  RunCompaction({files}, empty_map);
 }

@@ -1003,7 +988,7 @@ TEST_F(CompactionJobTest, MultiSingleDelete) {
 // single deletion and the (single) deletion gets removed while the corrupt key
 // gets written out. TODO(noetzli): We probably want a better way to treat
 // corrupt keys.
-TEST_F(CompactionJobTest, DISABLED_CorruptionAfterDeletion) {
+TEST_F(CompactionJobTest, CorruptionAfterDeletion) {
  NewDB();

  auto file1 =
@@ -1077,7 +1062,7 @@ TEST_F(CompactionJobTest, OldestBlobFileNumber) {
                /* expected_oldest_blob_file_number */ 19);
 }

-}  // namespace ROCKSDB_NAMESPACE
+}  // namespace rocksdb

 int main(int argc, char** argv) {
  ::testing::InitGoogleTest(&argc, argv);
@@ -23,7 +23,7 @@
 #include "util/random.h"
 #include "util/string_util.h"

-namespace ROCKSDB_NAMESPACE {
+namespace rocksdb {

 namespace {
 uint64_t TotalCompensatedFileSize(const std::vector<FileMetaData*>& files) {
@@ -110,9 +110,9 @@ CompressionType GetCompressionType(const ImmutableCFOptions& ioptions,

  // If bottommost_compression is set and we are compacting to the
  // bottommost level then we should use it.
-  if (mutable_cf_options.bottommost_compression != kDisableCompressionOption &&
+  if (ioptions.bottommost_compression != kDisableCompressionOption &&
      level >= (vstorage->num_non_empty_levels() - 1)) {
-    return mutable_cf_options.bottommost_compression;
+    return ioptions.bottommost_compression;
  }
  // If the user has specified a different compression level for each level,
  // then pick the compression for that level.
@@ -132,22 +132,22 @@ CompressionType GetCompressionType(const ImmutableCFOptions& ioptions,
  }
 }

-CompressionOptions GetCompressionOptions(const MutableCFOptions& cf_options,
+CompressionOptions GetCompressionOptions(const ImmutableCFOptions& ioptions,
                                         const VersionStorageInfo* vstorage,
                                         int level,
                                         const bool enable_compression) {
  if (!enable_compression) {
-    return cf_options.compression_opts;
+    return ioptions.compression_opts;
  }
  // If bottommost_compression is set and we are compacting to the
  // bottommost level then we should use the specified compression options
  // for the bottmomost_compression.
-  if (cf_options.bottommost_compression != kDisableCompressionOption &&
+  if (ioptions.bottommost_compression != kDisableCompressionOption &&
      level >= (vstorage->num_non_empty_levels() - 1) &&
-      cf_options.bottommost_compression_opts.enabled) {
-    return cf_options.bottommost_compression_opts;
+      ioptions.bottommost_compression_opts.enabled) {
+    return ioptions.bottommost_compression_opts;
  }
-  return cf_options.compression_opts;
+  return ioptions.compression_opts;
 }

 CompactionPicker::CompactionPicker(const ImmutableCFOptions& ioptions,
@@ -332,7 +332,7 @@ Compaction* CompactionPicker::CompactFiles(
    const CompactionOptions& compact_options,
    const std::vector<CompactionInputFiles>& input_files, int output_level,
    VersionStorageInfo* vstorage, const MutableCFOptions& mutable_cf_options,
-    const MutableDBOptions& mutable_db_options, uint32_t output_path_id) {
+    uint32_t output_path_id) {
  assert(input_files.size());
  // This compaction output should not overlap with a running compaction as
  // `SanitizeCompactionInputFiles` should've checked earlier and db mutex
@@ -356,10 +356,10 @@ Compaction* CompactionPicker::CompactFiles(
    compression_type = compact_options.compression;
  }
  auto c = new Compaction(
-      vstorage, ioptions_, mutable_cf_options, mutable_db_options, input_files,
-      output_level, compact_options.output_file_size_limit,
+      vstorage, ioptions_, mutable_cf_options, input_files, output_level,
+      compact_options.output_file_size_limit,
      mutable_cf_options.max_compaction_bytes, output_path_id, compression_type,
-      GetCompressionOptions(mutable_cf_options, vstorage, output_level),
+      GetCompressionOptions(ioptions_, vstorage, output_level),
      compact_options.max_subcompactions,
      /* grandparents */ {}, true);
  RegisterCompaction(c);
@@ -563,8 +563,7 @@ void CompactionPicker::GetGrandparents(

 Compaction* CompactionPicker::CompactRange(
    const std::string& cf_name, const MutableCFOptions& mutable_cf_options,
-    const MutableDBOptions& mutable_db_options, VersionStorageInfo* vstorage,
-    int input_level, int output_level,
+    VersionStorageInfo* vstorage, int input_level, int output_level,
    const CompactRangeOptions& compact_range_options, const InternalKey* begin,
    const InternalKey* end, InternalKey** compaction_end, bool* manual_conflict,
    uint64_t max_file_num_to_ignore) {
@@ -627,19 +626,18 @@ Compaction* CompactionPicker::CompactRange(
    }

    Compaction* c = new Compaction(
-        vstorage, ioptions_, mutable_cf_options, mutable_db_options,
-        std::move(inputs), output_level,
+        vstorage, ioptions_, mutable_cf_options, std::move(inputs),
+        output_level,
        MaxFileSizeForLevel(mutable_cf_options, output_level,
                            ioptions_.compaction_style),
        /* max_compaction_bytes */ LLONG_MAX,
        compact_range_options.target_path_id,
        GetCompressionType(ioptions_, vstorage, mutable_cf_options,
                           output_level, 1),
-        GetCompressionOptions(mutable_cf_options, vstorage, output_level),
+        GetCompressionOptions(ioptions_, vstorage, output_level),
        compact_range_options.max_subcompactions, /* grandparents */ {},
        /* is manual */ true);
    RegisterCompaction(c);
-    vstorage->ComputeCompactionScore(ioptions_, mutable_cf_options);
    return c;
  }

@@ -780,8 +778,8 @@ Compaction* CompactionPicker::CompactRange(
  std::vector<FileMetaData*> grandparents;
  GetGrandparents(vstorage, inputs, output_level_inputs, &grandparents);
  Compaction* compaction = new Compaction(
-      vstorage, ioptions_, mutable_cf_options, mutable_db_options,
-      std::move(compaction_inputs), output_level,
+      vstorage, ioptions_, mutable_cf_options, std::move(compaction_inputs),
+      output_level,
      MaxFileSizeForLevel(mutable_cf_options, output_level,
                          ioptions_.compaction_style, vstorage->base_level(),
                          ioptions_.level_compaction_dynamic_level_bytes),
@@ -789,7 +787,7 @@ Compaction* CompactionPicker::CompactRange(
      compact_range_options.target_path_id,
      GetCompressionType(ioptions_, vstorage, mutable_cf_options, output_level,
                         vstorage->base_level()),
-      GetCompressionOptions(mutable_cf_options, vstorage, output_level),
+      GetCompressionOptions(ioptions_, vstorage, output_level),
      compact_range_options.max_subcompactions, std::move(grandparents),
      /* is manual compaction */ true);

@@ -1087,8 +1085,6 @@ void CompactionPicker::PickFilesMarkedForCompaction(
  Random64 rnd(/* seed */ reinterpret_cast<uint64_t>(vstorage));
  size_t random_file_index = static_cast<size_t>(rnd.Uniform(
      static_cast<uint64_t>(vstorage->FilesMarkedForCompaction().size())));
-  TEST_SYNC_POINT_CALLBACK("CompactionPicker::PickFilesMarkedForCompaction",
-                           &random_file_index);

  if (continuation(vstorage->FilesMarkedForCompaction()[random_file_index])) {
    // found the compaction!
@@ -1132,4 +1128,4 @@ bool CompactionPicker::GetOverlappingL0Files(
  return true;
 }

-}  // namespace ROCKSDB_NAMESPACE
+}  // namespace rocksdb
@@ -22,7 +22,7 @@
 #include "rocksdb/options.h"
 #include "rocksdb/status.h"

-namespace ROCKSDB_NAMESPACE {
+namespace rocksdb {

 // The file contains an abstract class CompactionPicker, and its two
 // sub-classes LevelCompactionPicker and NullCompactionPicker, as
@@ -56,8 +56,7 @@ class CompactionPicker {
  // describes the compaction.  Caller should delete the result.
  virtual Compaction* PickCompaction(
      const std::string& cf_name, const MutableCFOptions& mutable_cf_options,
-      const MutableDBOptions& mutable_db_options, VersionStorageInfo* vstorage,
-      LogBuffer* log_buffer,
+      VersionStorageInfo* vstorage, LogBuffer* log_buffer,
      SequenceNumber earliest_memtable_seqno = kMaxSequenceNumber) = 0;

  // Return a compaction object for compacting the range [begin,end] in
@@ -73,8 +72,7 @@ class CompactionPicker {
  // *compaction_end should point to valid InternalKey!
  virtual Compaction* CompactRange(
      const std::string& cf_name, const MutableCFOptions& mutable_cf_options,
-      const MutableDBOptions& mutable_db_options, VersionStorageInfo* vstorage,
-      int input_level, int output_level,
+      VersionStorageInfo* vstorage, int input_level, int output_level,
      const CompactRangeOptions& compact_range_options,
      const InternalKey* begin, const InternalKey* end,
      InternalKey** compaction_end, bool* manual_conflict,
@@ -115,7 +113,6 @@ class CompactionPicker {
                           const std::vector<CompactionInputFiles>& input_files,
                           int output_level, VersionStorageInfo* vstorage,
                           const MutableCFOptions& mutable_cf_options,
-                           const MutableDBOptions& mutable_db_options,
                           uint32_t output_path_id);

  // Converts a set of compaction input file numbers into
@@ -253,7 +250,6 @@ class NullCompactionPicker : public CompactionPicker {
  Compaction* PickCompaction(
      const std::string& /*cf_name*/,
      const MutableCFOptions& /*mutable_cf_options*/,
-      const MutableDBOptions& /*mutable_db_options*/,
      VersionStorageInfo* /*vstorage*/, LogBuffer* /* log_buffer */,
      SequenceNumber /* earliest_memtable_seqno */) override {
    return nullptr;
@@ -262,7 +258,6 @@ class NullCompactionPicker : public CompactionPicker {
  // Always return "nullptr"
  Compaction* CompactRange(const std::string& /*cf_name*/,
                           const MutableCFOptions& /*mutable_cf_options*/,
-                           const MutableDBOptions& /*mutable_db_options*/,
                           VersionStorageInfo* /*vstorage*/,
                           int /*input_level*/, int /*output_level*/,
                           const CompactRangeOptions& /*compact_range_options*/,
@@ -310,9 +305,9 @@ CompressionType GetCompressionType(const ImmutableCFOptions& ioptions,
                                   int level, int base_level,
                                   const bool enable_compression = true);

-CompressionOptions GetCompressionOptions(
-    const MutableCFOptions& mutable_cf_options,
-    const VersionStorageInfo* vstorage, int level,
-    const bool enable_compression = true);
+CompressionOptions GetCompressionOptions(const ImmutableCFOptions& ioptions,
+                                         const VersionStorageInfo* vstorage,
+                                         int level,
+                                         const bool enable_compression = true);

-}  // namespace ROCKSDB_NAMESPACE
+}  // namespace rocksdb
@@ -17,7 +17,7 @@
 #include "logging/log_buffer.h"
 #include "util/string_util.h"

-namespace ROCKSDB_NAMESPACE {
+namespace rocksdb {
 namespace {
 uint64_t GetTotalFilesSize(const std::vector<FileMetaData*>& files) {
  uint64_t total_size = 0;
@@ -36,8 +36,7 @@ bool FIFOCompactionPicker::NeedsCompaction(

 Compaction* FIFOCompactionPicker::PickTTLCompaction(
    const std::string& cf_name, const MutableCFOptions& mutable_cf_options,
-    const MutableDBOptions& mutable_db_options, VersionStorageInfo* vstorage,
-    LogBuffer* log_buffer) {
+    VersionStorageInfo* vstorage, LogBuffer* log_buffer) {
  assert(mutable_cf_options.ttl > 0);

  const int kLevel0 = 0;
@@ -71,18 +70,18 @@ Compaction* FIFOCompactionPicker::PickTTLCompaction(
  // avoid underflow
  if (current_time > mutable_cf_options.ttl) {
    for (auto ritr = level_files.rbegin(); ritr != level_files.rend(); ++ritr) {
-      FileMetaData* f = *ritr;
-      assert(f);
-      if (f->fd.table_reader && f->fd.table_reader->GetTableProperties()) {
-        uint64_t creation_time =
+      auto f = *ritr;
+      if (f->fd.table_reader != nullptr &&
+          f->fd.table_reader->GetTableProperties() != nullptr) {
+        auto creation_time =
            f->fd.table_reader->GetTableProperties()->creation_time;
        if (creation_time == 0 ||
            creation_time >= (current_time - mutable_cf_options.ttl)) {
          break;
        }
+        total_size -= f->compensated_file_size;
+        inputs[0].files.push_back(f);
      }
-      total_size -= f->compensated_file_size;
-      inputs[0].files.push_back(f);
    }
  }

@@ -97,31 +96,24 @@ Compaction* FIFOCompactionPicker::PickTTLCompaction(
  }

  for (const auto& f : inputs[0].files) {
-    uint64_t creation_time = 0;
-    assert(f);
-    if (f->fd.table_reader && f->fd.table_reader->GetTableProperties()) {
-      creation_time = f->fd.table_reader->GetTableProperties()->creation_time;
-    }
    ROCKS_LOG_BUFFER(log_buffer,
                     "[%s] FIFO compaction: picking file %" PRIu64
                     " with creation time %" PRIu64 " for deletion",
-                     cf_name.c_str(), f->fd.GetNumber(), creation_time);
+                     cf_name.c_str(), f->fd.GetNumber(),
+                     f->fd.table_reader->GetTableProperties()->creation_time);
  }

  Compaction* c = new Compaction(
-      vstorage, ioptions_, mutable_cf_options, mutable_db_options,
-      std::move(inputs), 0, 0, 0, 0, kNoCompression,
-      mutable_cf_options.compression_opts,
-      /* max_subcompactions */ 0, {}, /* is manual */ false,
-      vstorage->CompactionScore(0),
+      vstorage, ioptions_, mutable_cf_options, std::move(inputs), 0, 0, 0, 0,
+      kNoCompression, ioptions_.compression_opts, /* max_subcompactions */ 0,
+      {}, /* is manual */ false, vstorage->CompactionScore(0),
      /* is deletion compaction */ true, CompactionReason::kFIFOTtl);
  return c;
 }

 Compaction* FIFOCompactionPicker::PickSizeCompaction(
    const std::string& cf_name, const MutableCFOptions& mutable_cf_options,
-    const MutableDBOptions& mutable_db_options, VersionStorageInfo* vstorage,
-    LogBuffer* log_buffer) {
+    VersionStorageInfo* vstorage, LogBuffer* log_buffer) {
  const int kLevel0 = 0;
  const std::vector<FileMetaData*>& level_files = vstorage->LevelFiles(kLevel0);
  uint64_t total_size = GetTotalFilesSize(level_files);
@@ -150,11 +142,11 @@ Compaction* FIFOCompactionPicker::PickSizeCompaction(
              max_compact_bytes_per_del_file,
              mutable_cf_options.max_compaction_bytes, &comp_inputs)) {
        Compaction* c = new Compaction(
-            vstorage, ioptions_, mutable_cf_options, mutable_db_options,
-            {comp_inputs}, 0, 16 * 1024 * 1024 /* output file size limit */,
+            vstorage, ioptions_, mutable_cf_options, {comp_inputs}, 0,
+            16 * 1024 * 1024 /* output file size limit */,
            0 /* max compaction bytes, not applicable */,
            0 /* output path ID */, mutable_cf_options.compression,
-            mutable_cf_options.compression_opts, 0 /* max_subcompactions */, {},
+            ioptions_.compression_opts, 0 /* max_subcompactions */, {},
            /* is manual */ false, vstorage->CompactionScore(0),
            /* is deletion compaction */ false,
            CompactionReason::kFIFOReduceNumFiles);
@@ -201,29 +193,25 @@ Compaction* FIFOCompactionPicker::PickSizeCompaction(
  }

  Compaction* c = new Compaction(
-      vstorage, ioptions_, mutable_cf_options, mutable_db_options,
-      std::move(inputs), 0, 0, 0, 0, kNoCompression,
-      mutable_cf_options.compression_opts,
-      /* max_subcompactions */ 0, {}, /* is manual */ false,
-      vstorage->CompactionScore(0),
+      vstorage, ioptions_, mutable_cf_options, std::move(inputs), 0, 0, 0, 0,
+      kNoCompression, ioptions_.compression_opts, /* max_subcompactions */ 0,
+      {}, /* is manual */ false, vstorage->CompactionScore(0),
      /* is deletion compaction */ true, CompactionReason::kFIFOMaxSize);
  return c;
 }

 Compaction* FIFOCompactionPicker::PickCompaction(
    const std::string& cf_name, const MutableCFOptions& mutable_cf_options,
-    const MutableDBOptions& mutable_db_options, VersionStorageInfo* vstorage,
-    LogBuffer* log_buffer, SequenceNumber /*earliest_memtable_seqno*/) {
+    VersionStorageInfo* vstorage, LogBuffer* log_buffer,
+    SequenceNumber /*earliest_memtable_seqno*/) {
  assert(vstorage->num_levels() == 1);

  Compaction* c = nullptr;
  if (mutable_cf_options.ttl > 0) {
-    c = PickTTLCompaction(cf_name, mutable_cf_options, mutable_db_options,
-                          vstorage, log_buffer);
+    c = PickTTLCompaction(cf_name, mutable_cf_options, vstorage, log_buffer);
  }
  if (c == nullptr) {
-    c = PickSizeCompaction(cf_name, mutable_cf_options, mutable_db_options,
-                           vstorage, log_buffer);
+    c = PickSizeCompaction(cf_name, mutable_cf_options, vstorage, log_buffer);
  }
  RegisterCompaction(c);
  return c;
@@ -231,8 +219,7 @@ Compaction* FIFOCompactionPicker::PickCompaction(

 Compaction* FIFOCompactionPicker::CompactRange(
    const std::string& cf_name, const MutableCFOptions& mutable_cf_options,
-    const MutableDBOptions& mutable_db_options, VersionStorageInfo* vstorage,
-    int input_level, int output_level,
+    VersionStorageInfo* vstorage, int input_level, int output_level,
    const CompactRangeOptions& /*compact_range_options*/,
    const InternalKey* /*begin*/, const InternalKey* /*end*/,
    InternalKey** compaction_end, bool* /*manual_conflict*/,
@@ -245,11 +232,11 @@ Compaction* FIFOCompactionPicker::CompactRange(
  assert(output_level == 0);
  *compaction_end = nullptr;
  LogBuffer log_buffer(InfoLogLevel::INFO_LEVEL, ioptions_.info_log);
-  Compaction* c = PickCompaction(cf_name, mutable_cf_options,
-                                 mutable_db_options, vstorage, &log_buffer);
+  Compaction* c =
+      PickCompaction(cf_name, mutable_cf_options, vstorage, &log_buffer);
  log_buffer.FlushBufferToLog();
  return c;
 }

-}  // namespace ROCKSDB_NAMESPACE
+}  // namespace rocksdb
 #endif  // !ROCKSDB_LITE
@@ -12,7 +12,7 @@

 #include "db/compaction/compaction_picker.h"

-namespace ROCKSDB_NAMESPACE {
+namespace rocksdb {
 class FIFOCompactionPicker : public CompactionPicker {
 public:
  FIFOCompactionPicker(const ImmutableCFOptions& ioptions,
@@ -21,14 +21,12 @@ class FIFOCompactionPicker : public CompactionPicker {

  virtual Compaction* PickCompaction(
      const std::string& cf_name, const MutableCFOptions& mutable_cf_options,
-      const MutableDBOptions& mutable_db_options, VersionStorageInfo* version,
-      LogBuffer* log_buffer,
+      VersionStorageInfo* version, LogBuffer* log_buffer,
      SequenceNumber earliest_memtable_seqno = kMaxSequenceNumber) override;

  virtual Compaction* CompactRange(
      const std::string& cf_name, const MutableCFOptions& mutable_cf_options,
-      const MutableDBOptions& mutable_db_options, VersionStorageInfo* vstorage,
-      int input_level, int output_level,
+      VersionStorageInfo* vstorage, int input_level, int output_level,
      const CompactRangeOptions& compact_range_options,
      const InternalKey* begin, const InternalKey* end,
      InternalKey** compaction_end, bool* manual_conflict,
@@ -43,15 +41,13 @@ class FIFOCompactionPicker : public CompactionPicker {
 private:
  Compaction* PickTTLCompaction(const std::string& cf_name,
                                const MutableCFOptions& mutable_cf_options,
-                                const MutableDBOptions& mutable_db_options,
                                VersionStorageInfo* version,
                                LogBuffer* log_buffer);

  Compaction* PickSizeCompaction(const std::string& cf_name,
                                 const MutableCFOptions& mutable_cf_options,
-                                 const MutableDBOptions& mutable_db_options,
                                 VersionStorageInfo* version,
                                 LogBuffer* log_buffer);
 };
-}  // namespace ROCKSDB_NAMESPACE
+}  // namespace rocksdb
 #endif  // !ROCKSDB_LITE
@@ -15,7 +15,7 @@
 #include "logging/log_buffer.h"
 #include "test_util/sync_point.h"

-namespace ROCKSDB_NAMESPACE {
+namespace rocksdb {

 bool LevelCompactionPicker::NeedsCompaction(
    const VersionStorageInfo* vstorage) const {
@@ -49,16 +49,14 @@ class LevelCompactionBuilder {
                         CompactionPicker* compaction_picker,
                         LogBuffer* log_buffer,
                         const MutableCFOptions& mutable_cf_options,
-                         const ImmutableCFOptions& ioptions,
-                         const MutableDBOptions& mutable_db_options)
+                         const ImmutableCFOptions& ioptions)
      : cf_name_(cf_name),
        vstorage_(vstorage),
        earliest_mem_seqno_(earliest_mem_seqno),
        compaction_picker_(compaction_picker),
        log_buffer_(log_buffer),
        mutable_cf_options_(mutable_cf_options),
-        ioptions_(ioptions),
-        mutable_db_options_(mutable_db_options) {}
+        ioptions_(ioptions) {}

  // Pick and return a compaction.
  Compaction* PickCompaction();
@@ -95,13 +93,9 @@ class LevelCompactionBuilder {
  // otherwise, returns false.
  bool PickIntraL0Compaction();

-  // Picks a file from level_files to compact.
-  // level_files is a vector of (level, file metadata) in ascending order of
-  // level. If compact_to_next_level is true, compact the file to the next
-  // level, otherwise, compact to the same level as the input file.
-  void PickFileToCompact(
-      const autovector<std::pair<int, FileMetaData*>>& level_files,
-      bool compact_to_next_level);
+  void PickExpiredTtlFiles();
+
+  void PickFilesMarkedForPeriodicCompaction();

  const std::string& cf_name_;
  VersionStorageInfo* vstorage_;
@@ -122,7 +116,6 @@ class LevelCompactionBuilder {

  const MutableCFOptions& mutable_cf_options_;
  const ImmutableCFOptions& ioptions_;
-  const MutableDBOptions& mutable_db_options_;
  // Pick a path ID to place a newly generated file, with its level
  static uint32_t GetPathId(const ImmutableCFOptions& ioptions,
                            const MutableCFOptions& mutable_cf_options,
@@ -131,34 +124,72 @@ class LevelCompactionBuilder {
  static const int kMinFilesForIntraL0Compaction = 4;
 };

-void LevelCompactionBuilder::PickFileToCompact(
-    const autovector<std::pair<int, FileMetaData*>>& level_files,
-    bool compact_to_next_level) {
-  for (auto& level_file : level_files) {
+void LevelCompactionBuilder::PickExpiredTtlFiles() {
+  if (vstorage_->ExpiredTtlFiles().empty()) {
+    return;
+  }
+
+  auto continuation = [&](std::pair<int, FileMetaData*> level_file) {
    // If it's being compacted it has nothing to do here.
    // If this assert() fails that means that some function marked some
    // files as being_compacted, but didn't call ComputeCompactionScore()
    assert(!level_file.second->being_compacted);
    start_level_ = level_file.first;
-    if ((compact_to_next_level &&
-         start_level_ == vstorage_->num_non_empty_levels() - 1) ||
+    output_level_ =
+        (start_level_ == 0) ? vstorage_->base_level() : start_level_ + 1;
+
+    if ((start_level_ == vstorage_->num_non_empty_levels() - 1) ||
        (start_level_ == 0 &&
         !compaction_picker_->level0_compactions_in_progress()->empty())) {
-      continue;
-    }
-    if (compact_to_next_level) {
-      output_level_ =
-          (start_level_ == 0) ? vstorage_->base_level() : start_level_ + 1;
-    } else {
-      output_level_ = start_level_;
+      return false;
    }
+
    start_level_inputs_.files = {level_file.second};
    start_level_inputs_.level = start_level_;
-    if (compaction_picker_->ExpandInputsToCleanCut(cf_name_, vstorage_,
-                                                   &start_level_inputs_)) {
+    return compaction_picker_->ExpandInputsToCleanCut(cf_name_, vstorage_,
+                                                      &start_level_inputs_);
+  };
+
+  for (auto& level_file : vstorage_->ExpiredTtlFiles()) {
+    if (continuation(level_file)) {
+      // found the compaction!
      return;
    }
  }
+
+  start_level_inputs_.files.clear();
+}
+
+void LevelCompactionBuilder::PickFilesMarkedForPeriodicCompaction() {
+  if (vstorage_->FilesMarkedForPeriodicCompaction().empty()) {
+    return;
+  }
+
+  auto continuation = [&](std::pair<int, FileMetaData*> level_file) {
+    // If it's being compacted it has nothing to do here.
+    // If this assert() fails that means that some function marked some
+    // files as being_compacted, but didn't call ComputeCompactionScore()
+    assert(!level_file.second->being_compacted);
+    output_level_ = start_level_ = level_file.first;
+
+    if (start_level_ == 0 &&
+        !compaction_picker_->level0_compactions_in_progress()->empty()) {
+      return false;
+    }
+
+    start_level_inputs_.files = {level_file.second};
+    start_level_inputs_.level = start_level_;
+    return compaction_picker_->ExpandInputsToCleanCut(cf_name_, vstorage_,
+                                                      &start_level_inputs_);
+  };
+
+  for (auto& level_file : vstorage_->FilesMarkedForPeriodicCompaction()) {
+    if (continuation(level_file)) {
+      // found the compaction!
+      return;
+    }
+  }
+
  start_level_inputs_.files.clear();
 }

@@ -207,46 +238,64 @@ void LevelCompactionBuilder::SetupInitialFiles() {
          }
        }
      }
-    } else {
-      // Compaction scores are sorted in descending order, no further scores
-      // will be >= 1.
-      break;
    }
  }
-  if (!start_level_inputs_.empty()) {
-    return;
-  }

  // if we didn't find a compaction, check if there are any files marked for
  // compaction
-  parent_index_ = base_index_ = -1;
+  if (start_level_inputs_.empty()) {
+    parent_index_ = base_index_ = -1;

-  compaction_picker_->PickFilesMarkedForCompaction(
-      cf_name_, vstorage_, &start_level_, &output_level_, &start_level_inputs_);
-  if (!start_level_inputs_.empty()) {
-    compaction_reason_ = CompactionReason::kFilesMarkedForCompaction;
-    return;
+    compaction_picker_->PickFilesMarkedForCompaction(
+        cf_name_, vstorage_, &start_level_, &output_level_,
+        &start_level_inputs_);
+    if (!start_level_inputs_.empty()) {
+      is_manual_ = true;
+      compaction_reason_ = CompactionReason::kFilesMarkedForCompaction;
+      return;
+    }
  }

  // Bottommost Files Compaction on deleting tombstones
-  PickFileToCompact(vstorage_->BottommostFilesMarkedForCompaction(), false);
-  if (!start_level_inputs_.empty()) {
-    compaction_reason_ = CompactionReason::kBottommostFiles;
-    return;
+  if (start_level_inputs_.empty()) {
+    size_t i;
+    for (i = 0; i < vstorage_->BottommostFilesMarkedForCompaction().size();
+         ++i) {
+      auto& level_and_file = vstorage_->BottommostFilesMarkedForCompaction()[i];
+      assert(!level_and_file.second->being_compacted);
+      start_level_inputs_.level = output_level_ = start_level_ =
+          level_and_file.first;
+      start_level_inputs_.files = {level_and_file.second};
+      if (compaction_picker_->ExpandInputsToCleanCut(cf_name_, vstorage_,
+                                                     &start_level_inputs_)) {
+        break;
+      }
+    }
+    if (i == vstorage_->BottommostFilesMarkedForCompaction().size()) {
+      start_level_inputs_.clear();
+    } else {
+      assert(!start_level_inputs_.empty());
+      compaction_reason_ = CompactionReason::kBottommostFiles;
+      return;
+    }
  }

  // TTL Compaction
-  PickFileToCompact(vstorage_->ExpiredTtlFiles(), true);
-  if (!start_level_inputs_.empty()) {
-    compaction_reason_ = CompactionReason::kTtl;
-    return;
+  if (start_level_inputs_.empty()) {
+    PickExpiredTtlFiles();
+    if (!start_level_inputs_.empty()) {
+      compaction_reason_ = CompactionReason::kTtl;
+      return;
+    }
  }

  // Periodic Compaction
-  PickFileToCompact(vstorage_->FilesMarkedForPeriodicCompaction(), false);
-  if (!start_level_inputs_.empty()) {
-    compaction_reason_ = CompactionReason::kPeriodicCompaction;
-    return;
+  if (start_level_inputs_.empty()) {
+    PickFilesMarkedForPeriodicCompaction();
+    if (!start_level_inputs_.empty()) {
+      compaction_reason_ = CompactionReason::kPeriodicCompaction;
+      return;
+    }
  }
 }

@@ -326,8 +375,8 @@ Compaction* LevelCompactionBuilder::PickCompaction() {

 Compaction* LevelCompactionBuilder::GetCompaction() {
  auto c = new Compaction(
-      vstorage_, ioptions_, mutable_cf_options_, mutable_db_options_,
-      std::move(compaction_inputs_), output_level_,
+      vstorage_, ioptions_, mutable_cf_options_, std::move(compaction_inputs_),
+      output_level_,
      MaxFileSizeForLevel(mutable_cf_options_, output_level_,
                          ioptions_.compaction_style, vstorage_->base_level(),
                          ioptions_.level_compaction_dynamic_level_bytes),
@@ -335,7 +384,7 @@ Compaction* LevelCompactionBuilder::GetCompaction() {
      GetPathId(ioptions_, mutable_cf_options_, output_level_),
      GetCompressionType(ioptions_, vstorage_, mutable_cf_options_,
                         output_level_, vstorage_->base_level()),
-      GetCompressionOptions(mutable_cf_options_, vstorage_, output_level_),
+      GetCompressionOptions(ioptions_, vstorage_, output_level_),
      /* max_subcompactions */ 0, std::move(grandparents_), is_manual_,
      start_level_score_, false /* deletion_compaction */, compaction_reason_);

@@ -500,11 +549,10 @@ bool LevelCompactionBuilder::PickIntraL0Compaction() {

 Compaction* LevelCompactionPicker::PickCompaction(
    const std::string& cf_name, const MutableCFOptions& mutable_cf_options,
-    const MutableDBOptions& mutable_db_options, VersionStorageInfo* vstorage,
-    LogBuffer* log_buffer, SequenceNumber earliest_mem_seqno) {
+    VersionStorageInfo* vstorage, LogBuffer* log_buffer,
+    SequenceNumber earliest_mem_seqno) {
  LevelCompactionBuilder builder(cf_name, vstorage, earliest_mem_seqno, this,
-                                 log_buffer, mutable_cf_options, ioptions_,
-                                 mutable_db_options);
+                                 log_buffer, mutable_cf_options, ioptions_);
  return builder.PickCompaction();
 }
-}  // namespace ROCKSDB_NAMESPACE
+}  // namespace rocksdb
@@ -11,7 +11,7 @@

 #include "db/compaction/compaction_picker.h"

-namespace ROCKSDB_NAMESPACE {
+namespace rocksdb {
 // Picking compactions for leveled compaction. See wiki page
 // https://github.com/facebook/rocksdb/wiki/Leveled-Compaction
 // for description of Leveled compaction.
@@ -22,12 +22,11 @@ class LevelCompactionPicker : public CompactionPicker {
      : CompactionPicker(ioptions, icmp) {}
  virtual Compaction* PickCompaction(
      const std::string& cf_name, const MutableCFOptions& mutable_cf_options,
-      const MutableDBOptions& mutable_db_options, VersionStorageInfo* vstorage,
-      LogBuffer* log_buffer,
+      VersionStorageInfo* vstorage, LogBuffer* log_buffer,
      SequenceNumber earliest_memtable_seqno = kMaxSequenceNumber) override;

  virtual bool NeedsCompaction(
      const VersionStorageInfo* vstorage) const override;
 };

-}  // namespace ROCKSDB_NAMESPACE
+}  // namespace rocksdb
@@ -17,7 +17,7 @@
 #include "test_util/testutil.h"
 #include "util/string_util.h"

-namespace ROCKSDB_NAMESPACE {
+namespace rocksdb {

 class CountingLogger : public Logger {
 public:
@@ -33,7 +33,6 @@ class CompactionPickerTest : public testing::Test {
  Options options_;
  ImmutableCFOptions ioptions_;
  MutableCFOptions mutable_cf_options_;
-  MutableDBOptions mutable_db_options_;
  LevelCompactionPicker level_compaction_picker;
  std::string cf_name_;
  CountingLogger logger_;
@@ -53,7 +52,6 @@ class CompactionPickerTest : public testing::Test {
        icmp_(ucmp_),
        ioptions_(options_),
        mutable_cf_options_(options_),
-        mutable_db_options_(),
        level_compaction_picker(ioptions_, &icmp_),
        cf_name_("dummy"),
        log_buffer_(InfoLogLevel::INFO_LEVEL, &logger_),
@@ -80,17 +78,8 @@ class CompactionPickerTest : public testing::Test {
    vstorage_->CalculateBaseBytes(ioptions_, mutable_cf_options_);
  }

-  // Create a new VersionStorageInfo object so we can add mode files and then
-  // merge it with the existing VersionStorageInfo
-  void AddVersionStorage() {
-    temp_vstorage_.reset(new VersionStorageInfo(
-        &icmp_, ucmp_, options_.num_levels, ioptions_.compaction_style,
-        vstorage_.get(), false));
-  }
-
  void DeleteVersionStorage() {
    vstorage_.reset();
-    temp_vstorage_.reset();
    files_.clear();
    file_map_.clear();
    input_files_.clear();
@@ -99,24 +88,17 @@ class CompactionPickerTest : public testing::Test {
  void Add(int level, uint32_t file_number, const char* smallest,
           const char* largest, uint64_t file_size = 1, uint32_t path_id = 0,
           SequenceNumber smallest_seq = 100, SequenceNumber largest_seq = 100,
-           size_t compensated_file_size = 0, bool marked_for_compact = false) {
-    VersionStorageInfo* vstorage;
-    if (temp_vstorage_) {
-      vstorage = temp_vstorage_.get();
-    } else {
-      vstorage = vstorage_.get();
-    }
-    assert(level < vstorage->num_levels());
+           size_t compensated_file_size = 0) {
+    assert(level < vstorage_->num_levels());
    FileMetaData* f = new FileMetaData(
        file_number, path_id, file_size,
        InternalKey(smallest, smallest_seq, kTypeValue),
        InternalKey(largest, largest_seq, kTypeValue), smallest_seq,
-        largest_seq, marked_for_compact, kInvalidBlobFileNumber,
-        kUnknownOldestAncesterTime, kUnknownFileCreationTime,
-        kUnknownFileChecksum, kUnknownFileChecksumFuncName);
+        largest_seq, /* marked_for_compact */ false, kInvalidBlobFileNumber,
+        kUnknownOldestAncesterTime, kUnknownFileCreationTime);
    f->compensated_file_size =
        (compensated_file_size != 0) ? compensated_file_size : file_size;
-    vstorage->AddFile(level, f);
+    vstorage_->AddFile(level, f);
    files_.emplace_back(f);
    file_map_.insert({file_number, {f, level}});
  }
@@ -139,12 +121,6 @@ class CompactionPickerTest : public testing::Test {
  }

  void UpdateVersionStorageInfo() {
-    if (temp_vstorage_) {
-      VersionBuilder builder(FileOptions(), &ioptions_, nullptr,
-                             vstorage_.get(), nullptr);
-      builder.SaveTo(temp_vstorage_.get());
-      vstorage_ = std::move(temp_vstorage_);
-    }
    vstorage_->CalculateBaseBytes(ioptions_, mutable_cf_options_);
    vstorage_->UpdateFilesByCompactionPri(ioptions_.compaction_pri);
    vstorage_->UpdateNumNonEmptyLevels();
@@ -155,36 +131,13 @@ class CompactionPickerTest : public testing::Test {
    vstorage_->ComputeFilesMarkedForCompaction();
    vstorage_->SetFinalized();
  }
-  void AddFileToVersionStorage(int level, uint32_t file_number,
-                               const char* smallest, const char* largest,
-                               uint64_t file_size = 1, uint32_t path_id = 0,
-                               SequenceNumber smallest_seq = 100,
-                               SequenceNumber largest_seq = 100,
-                               size_t compensated_file_size = 0,
-                               bool marked_for_compact = false) {
-    VersionStorageInfo* base_vstorage = vstorage_.release();
-    vstorage_.reset(new VersionStorageInfo(&icmp_, ucmp_, options_.num_levels,
-                                           kCompactionStyleUniversal,
-                                           base_vstorage, false));
-    Add(level, file_number, smallest, largest, file_size, path_id, smallest_seq,
-        largest_seq, compensated_file_size, marked_for_compact);
-
-    VersionBuilder builder(FileOptions(), &ioptions_, nullptr, base_vstorage,
-                           nullptr);
-    builder.SaveTo(vstorage_.get());
-    UpdateVersionStorageInfo();
-  }
-
- private:
-  std::unique_ptr<VersionStorageInfo> temp_vstorage_;
 };

 TEST_F(CompactionPickerTest, Empty) {
  NewVersionStorage(6, kCompactionStyleLevel);
  UpdateVersionStorageInfo();
  std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
-      cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-      &log_buffer_));
+      cf_name_, mutable_cf_options_, vstorage_.get(), &log_buffer_));
  ASSERT_TRUE(compaction.get() == nullptr);
 }

@@ -195,8 +148,7 @@ TEST_F(CompactionPickerTest, Single) {
  UpdateVersionStorageInfo();

  std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
-      cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-      &log_buffer_));
+      cf_name_, mutable_cf_options_, vstorage_.get(), &log_buffer_));
  ASSERT_TRUE(compaction.get() == nullptr);
 }

@@ -209,8 +161,7 @@ TEST_F(CompactionPickerTest, Level0Trigger) {
  UpdateVersionStorageInfo();

  std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
-      cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-      &log_buffer_));
+      cf_name_, mutable_cf_options_, vstorage_.get(), &log_buffer_));
  ASSERT_TRUE(compaction.get() != nullptr);
  ASSERT_EQ(2U, compaction->num_input_files(0));
  ASSERT_EQ(1U, compaction->input(0, 0)->fd.GetNumber());
@@ -223,8 +174,7 @@ TEST_F(CompactionPickerTest, Level1Trigger) {
  UpdateVersionStorageInfo();

  std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
-      cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-      &log_buffer_));
+      cf_name_, mutable_cf_options_, vstorage_.get(), &log_buffer_));
  ASSERT_TRUE(compaction.get() != nullptr);
  ASSERT_EQ(1U, compaction->num_input_files(0));
  ASSERT_EQ(66U, compaction->input(0, 0)->fd.GetNumber());
@@ -242,8 +192,7 @@ TEST_F(CompactionPickerTest, Level1Trigger2) {
  UpdateVersionStorageInfo();

  std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
-      cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-      &log_buffer_));
+      cf_name_, mutable_cf_options_, vstorage_.get(), &log_buffer_));
  ASSERT_TRUE(compaction.get() != nullptr);
  ASSERT_EQ(1U, compaction->num_input_files(0));
  ASSERT_EQ(2U, compaction->num_input_files(1));
@@ -274,8 +223,7 @@ TEST_F(CompactionPickerTest, LevelMaxScore) {
  UpdateVersionStorageInfo();

  std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
-      cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-      &log_buffer_));
+      cf_name_, mutable_cf_options_, vstorage_.get(), &log_buffer_));
  ASSERT_TRUE(compaction.get() != nullptr);
  ASSERT_EQ(1U, compaction->num_input_files(0));
  ASSERT_EQ(7U, compaction->input(0, 0)->fd.GetNumber());
@@ -322,8 +270,7 @@ TEST_F(CompactionPickerTest, Level0TriggerDynamic) {
  UpdateVersionStorageInfo();

  std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
-      cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-      &log_buffer_));
+      cf_name_, mutable_cf_options_, vstorage_.get(), &log_buffer_));
  ASSERT_TRUE(compaction.get() != nullptr);
  ASSERT_EQ(2U, compaction->num_input_files(0));
  ASSERT_EQ(1U, compaction->input(0, 0)->fd.GetNumber());
@@ -347,8 +294,7 @@ TEST_F(CompactionPickerTest, Level0TriggerDynamic2) {
  ASSERT_EQ(vstorage_->base_level(), num_levels - 2);

  std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
-      cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-      &log_buffer_));
+      cf_name_, mutable_cf_options_, vstorage_.get(), &log_buffer_));
  ASSERT_TRUE(compaction.get() != nullptr);
  ASSERT_EQ(2U, compaction->num_input_files(0));
  ASSERT_EQ(1U, compaction->input(0, 0)->fd.GetNumber());
@@ -373,8 +319,7 @@ TEST_F(CompactionPickerTest, Level0TriggerDynamic3) {
  ASSERT_EQ(vstorage_->base_level(), num_levels - 3);

  std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
-      cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-      &log_buffer_));
+      cf_name_, mutable_cf_options_, vstorage_.get(), &log_buffer_));
  ASSERT_TRUE(compaction.get() != nullptr);
  ASSERT_EQ(2U, compaction->num_input_files(0));
  ASSERT_EQ(1U, compaction->input(0, 0)->fd.GetNumber());
@@ -403,8 +348,7 @@ TEST_F(CompactionPickerTest, Level0TriggerDynamic4) {
  ASSERT_EQ(vstorage_->base_level(), num_levels - 3);

  std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
-      cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-      &log_buffer_));
+      cf_name_, mutable_cf_options_, vstorage_.get(), &log_buffer_));
  ASSERT_TRUE(compaction.get() != nullptr);
  ASSERT_EQ(2U, compaction->num_input_files(0));
  ASSERT_EQ(1U, compaction->input(0, 0)->fd.GetNumber());
@@ -426,8 +370,8 @@ TEST_F(CompactionPickerTest, LevelTriggerDynamic4) {
  mutable_cf_options_.max_bytes_for_level_multiplier = 10;
  NewVersionStorage(num_levels, kCompactionStyleLevel);
  Add(0, 1U, "150", "200");
-  Add(num_levels - 1, 2U, "200", "250", 300U);
-  Add(num_levels - 1, 3U, "300", "350", 3000U);
+  Add(num_levels - 1, 3U, "200", "250", 300U);
+  Add(num_levels - 1, 4U, "300", "350", 3000U);
  Add(num_levels - 1, 4U, "400", "450", 3U);
  Add(num_levels - 2, 5U, "150", "180", 300U);
  Add(num_levels - 2, 6U, "181", "350", 500U);
@@ -436,8 +380,7 @@ TEST_F(CompactionPickerTest, LevelTriggerDynamic4) {
  UpdateVersionStorageInfo();

  std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
-      cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-      &log_buffer_));
+      cf_name_, mutable_cf_options_, vstorage_.get(), &log_buffer_));
  ASSERT_TRUE(compaction.get() != nullptr);
  ASSERT_EQ(1U, compaction->num_input_files(0));
  ASSERT_EQ(5U, compaction->input(0, 0)->fd.GetNumber());
@@ -494,8 +437,7 @@ TEST_F(CompactionPickerTest, CompactionUniversalIngestBehindReservedLevel) {

  std::unique_ptr<Compaction> compaction(
      universal_compaction_picker.PickCompaction(
-          cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-          &log_buffer_));
+          cf_name_, mutable_cf_options_, vstorage_.get(), &log_buffer_));

  // output level should be the one above the bottom-most
  ASSERT_EQ(1, compaction->output_level());
@@ -529,8 +471,7 @@ TEST_F(CompactionPickerTest, CannotTrivialMoveUniversal) {

  std::unique_ptr<Compaction> compaction(
      universal_compaction_picker.PickCompaction(
-          cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-          &log_buffer_));
+          cf_name_, mutable_cf_options_, vstorage_.get(), &log_buffer_));

  ASSERT_TRUE(!compaction->is_trivial_move());
 }
@@ -556,8 +497,7 @@ TEST_F(CompactionPickerTest, AllowsTrivialMoveUniversal) {

  std::unique_ptr<Compaction> compaction(
      universal_compaction_picker.PickCompaction(
-          cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-          &log_buffer_));
+          cf_name_, mutable_cf_options_, vstorage_.get(), &log_buffer_));

  ASSERT_TRUE(compaction->is_trivial_move());
 }
@@ -585,8 +525,7 @@ TEST_F(CompactionPickerTest, UniversalPeriodicCompaction1) {

  std::unique_ptr<Compaction> compaction(
      universal_compaction_picker.PickCompaction(
-          cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-          &log_buffer_));
+          cf_name_, mutable_cf_options_, vstorage_.get(), &log_buffer_));

  ASSERT_TRUE(compaction);
  ASSERT_EQ(4, compaction->output_level());
@@ -616,8 +555,7 @@ TEST_F(CompactionPickerTest, UniversalPeriodicCompaction2) {

  std::unique_ptr<Compaction> compaction(
      universal_compaction_picker.PickCompaction(
-          cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-          &log_buffer_));
+          cf_name_, mutable_cf_options_, vstorage_.get(), &log_buffer_));

  ASSERT_FALSE(compaction);
 }
@@ -643,8 +581,7 @@ TEST_F(CompactionPickerTest, UniversalPeriodicCompaction3) {

  std::unique_ptr<Compaction> compaction(
      universal_compaction_picker.PickCompaction(
-          cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-          &log_buffer_));
+          cf_name_, mutable_cf_options_, vstorage_.get(), &log_buffer_));

  ASSERT_FALSE(compaction);
 }
@@ -674,8 +611,7 @@ TEST_F(CompactionPickerTest, UniversalPeriodicCompaction4) {

  std::unique_ptr<Compaction> compaction(
      universal_compaction_picker.PickCompaction(
-          cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-          &log_buffer_));
+          cf_name_, mutable_cf_options_, vstorage_.get(), &log_buffer_));
  ASSERT_TRUE(!compaction ||
              compaction->start_level() != compaction->output_level());
 }
@@ -695,8 +631,7 @@ TEST_F(CompactionPickerTest, UniversalPeriodicCompaction5) {

  std::unique_ptr<Compaction> compaction(
      universal_compaction_picker.PickCompaction(
-          cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-          &log_buffer_));
+          cf_name_, mutable_cf_options_, vstorage_.get(), &log_buffer_));
  ASSERT_TRUE(compaction);
  ASSERT_EQ(0, compaction->start_level());
  ASSERT_EQ(1U, compaction->num_input_files(0));
@@ -720,8 +655,7 @@ TEST_F(CompactionPickerTest, UniversalPeriodicCompaction6) {

  std::unique_ptr<Compaction> compaction(
      universal_compaction_picker.PickCompaction(
-          cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-          &log_buffer_));
+          cf_name_, mutable_cf_options_, vstorage_.get(), &log_buffer_));
  ASSERT_TRUE(compaction);
  ASSERT_EQ(4, compaction->start_level());
  ASSERT_EQ(2U, compaction->num_input_files(0));
@@ -781,8 +715,7 @@ TEST_F(CompactionPickerTest, CompactionPriMinOverlapping1) {
  UpdateVersionStorageInfo();

  std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
-      cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-      &log_buffer_));
+      cf_name_, mutable_cf_options_, vstorage_.get(), &log_buffer_));
  ASSERT_TRUE(compaction.get() != nullptr);
  ASSERT_EQ(1U, compaction->num_input_files(0));
  // Pick file 8 because it overlaps with 0 files on level 3.
@@ -805,7 +738,7 @@ TEST_F(CompactionPickerTest, CompactionPriMinOverlapping2) {
  Add(2, 8U, "201", "300",
      60000000U);  // Overlaps with file 28, 29, total size 521M

-  Add(3, 25U, "100", "110", 261000000U);
+  Add(3, 26U, "100", "110", 261000000U);
  Add(3, 26U, "150", "170", 261000000U);
  Add(3, 27U, "171", "179", 260000000U);
  Add(3, 28U, "191", "220", 260000000U);
@@ -814,8 +747,7 @@ TEST_F(CompactionPickerTest, CompactionPriMinOverlapping2) {
  UpdateVersionStorageInfo();

  std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
-      cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-      &log_buffer_));
+      cf_name_, mutable_cf_options_, vstorage_.get(), &log_buffer_));
  ASSERT_TRUE(compaction.get() != nullptr);
  ASSERT_EQ(1U, compaction->num_input_files(0));
  // Picking file 7 because overlapping ratio is the biggest.
@@ -842,8 +774,7 @@ TEST_F(CompactionPickerTest, CompactionPriMinOverlapping3) {
  UpdateVersionStorageInfo();

  std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
-      cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-      &log_buffer_));
+      cf_name_, mutable_cf_options_, vstorage_.get(), &log_buffer_));
  ASSERT_TRUE(compaction.get() != nullptr);
  ASSERT_EQ(1U, compaction->num_input_files(0));
  // Picking file 8 because overlapping ratio is the biggest.
@@ -872,8 +803,7 @@ TEST_F(CompactionPickerTest, CompactionPriMinOverlapping4) {
  UpdateVersionStorageInfo();

  std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
-      cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-      &log_buffer_));
+      cf_name_, mutable_cf_options_, vstorage_.get(), &log_buffer_));
  ASSERT_TRUE(compaction.get() != nullptr);
  ASSERT_EQ(1U, compaction->num_input_files(0));
  // Picking file 8 because overlapping ratio is the biggest.
@@ -900,8 +830,7 @@ TEST_F(CompactionPickerTest, ParentIndexResetBug) {
  UpdateVersionStorageInfo();

  std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
-      cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-      &log_buffer_));
+      cf_name_, mutable_cf_options_, vstorage_.get(), &log_buffer_));
 }

 // This test checks ExpandWhileOverlapping() by having overlapping user keys
@@ -918,8 +847,7 @@ TEST_F(CompactionPickerTest, OverlappingUserKeys) {
  UpdateVersionStorageInfo();

  std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
-      cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-      &log_buffer_));
+              cf_name_, mutable_cf_options_, vstorage_.get(), &log_buffer_));
  ASSERT_TRUE(compaction.get() != nullptr);
  ASSERT_EQ(1U, compaction->num_input_levels());
  ASSERT_EQ(2U, compaction->num_input_files(0));
@@ -938,8 +866,7 @@ TEST_F(CompactionPickerTest, OverlappingUserKeys2) {
  UpdateVersionStorageInfo();

  std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
-      cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-      &log_buffer_));
+              cf_name_, mutable_cf_options_, vstorage_.get(), &log_buffer_));
  ASSERT_TRUE(compaction.get() != nullptr);
  ASSERT_EQ(2U, compaction->num_input_levels());
  ASSERT_EQ(2U, compaction->num_input_files(0));
@@ -966,8 +893,7 @@ TEST_F(CompactionPickerTest, OverlappingUserKeys3) {
  UpdateVersionStorageInfo();

  std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
-      cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-      &log_buffer_));
+              cf_name_, mutable_cf_options_, vstorage_.get(), &log_buffer_));
  ASSERT_TRUE(compaction.get() != nullptr);
  ASSERT_EQ(2U, compaction->num_input_levels());
  ASSERT_EQ(5U, compaction->num_input_files(0));
@@ -997,8 +923,7 @@ TEST_F(CompactionPickerTest, OverlappingUserKeys4) {
  UpdateVersionStorageInfo();

  std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
-      cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-      &log_buffer_));
+      cf_name_, mutable_cf_options_, vstorage_.get(), &log_buffer_));
  ASSERT_TRUE(compaction.get() != nullptr);
  ASSERT_EQ(2U, compaction->num_input_levels());
  ASSERT_EQ(1U, compaction->num_input_files(0));
@@ -1021,8 +946,7 @@ TEST_F(CompactionPickerTest, OverlappingUserKeys5) {
  UpdateVersionStorageInfo();

  std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
-      cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-      &log_buffer_));
+      cf_name_, mutable_cf_options_, vstorage_.get(), &log_buffer_));
  ASSERT_TRUE(compaction.get() == nullptr);
 }

@@ -1043,8 +967,7 @@ TEST_F(CompactionPickerTest, OverlappingUserKeys6) {
  UpdateVersionStorageInfo();

  std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
-      cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-      &log_buffer_));
+      cf_name_, mutable_cf_options_, vstorage_.get(), &log_buffer_));
  ASSERT_TRUE(compaction.get() != nullptr);
  ASSERT_EQ(2U, compaction->num_input_levels());
  ASSERT_EQ(1U, compaction->num_input_files(0));
@@ -1064,8 +987,7 @@ TEST_F(CompactionPickerTest, OverlappingUserKeys7) {
  UpdateVersionStorageInfo();

  std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
-      cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-      &log_buffer_));
+      cf_name_, mutable_cf_options_, vstorage_.get(), &log_buffer_));
  ASSERT_TRUE(compaction.get() != nullptr);
  ASSERT_EQ(2U, compaction->num_input_levels());
  ASSERT_GE(1U, compaction->num_input_files(0));
@@ -1093,8 +1015,7 @@ TEST_F(CompactionPickerTest, OverlappingUserKeys8) {
  UpdateVersionStorageInfo();

  std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
-      cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-      &log_buffer_));
+      cf_name_, mutable_cf_options_, vstorage_.get(), &log_buffer_));
  ASSERT_TRUE(compaction.get() != nullptr);
  ASSERT_EQ(2U, compaction->num_input_levels());
  ASSERT_EQ(3U, compaction->num_input_files(0));
@@ -1126,8 +1047,7 @@ TEST_F(CompactionPickerTest, OverlappingUserKeys9) {
  UpdateVersionStorageInfo();

  std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
-      cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-      &log_buffer_));
+      cf_name_, mutable_cf_options_, vstorage_.get(), &log_buffer_));
  ASSERT_TRUE(compaction.get() != nullptr);
  ASSERT_EQ(2U, compaction->num_input_levels());
  ASSERT_EQ(5U, compaction->num_input_files(0));
@@ -1167,8 +1087,7 @@ TEST_F(CompactionPickerTest, OverlappingUserKeys10) {
  UpdateVersionStorageInfo();

  std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
-      cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-      &log_buffer_));
+      cf_name_, mutable_cf_options_, vstorage_.get(), &log_buffer_));
  ASSERT_TRUE(compaction.get() != nullptr);
  ASSERT_EQ(2U, compaction->num_input_levels());
  ASSERT_EQ(1U, compaction->num_input_files(0));
@@ -1206,8 +1125,7 @@ TEST_F(CompactionPickerTest, OverlappingUserKeys11) {
  UpdateVersionStorageInfo();

  std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
-      cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-      &log_buffer_));
+      cf_name_, mutable_cf_options_, vstorage_.get(), &log_buffer_));
  ASSERT_TRUE(compaction.get() != nullptr);
  ASSERT_EQ(2U, compaction->num_input_levels());
  ASSERT_EQ(1U, compaction->num_input_files(0));
@@ -1244,8 +1162,7 @@ TEST_F(CompactionPickerTest, NotScheduleL1IfL0WithHigherPri1) {
  ASSERT_EQ(0, vstorage_->CompactionScoreLevel(0));
  ASSERT_EQ(1, vstorage_->CompactionScoreLevel(1));
  std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
-      cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-      &log_buffer_));
+      cf_name_, mutable_cf_options_, vstorage_.get(), &log_buffer_));
  ASSERT_TRUE(compaction.get() == nullptr);
 }

@@ -1275,8 +1192,7 @@ TEST_F(CompactionPickerTest, NotScheduleL1IfL0WithHigherPri2) {
  ASSERT_EQ(0, vstorage_->CompactionScoreLevel(0));
  ASSERT_EQ(1, vstorage_->CompactionScoreLevel(1));
  std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
-      cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-      &log_buffer_));
+      cf_name_, mutable_cf_options_, vstorage_.get(), &log_buffer_));
  ASSERT_TRUE(compaction.get() != nullptr);
 }

@@ -1309,8 +1225,7 @@ TEST_F(CompactionPickerTest, NotScheduleL1IfL0WithHigherPri3) {
  ASSERT_EQ(1, vstorage_->CompactionScoreLevel(0));
  ASSERT_EQ(0, vstorage_->CompactionScoreLevel(1));
  std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
-      cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-      &log_buffer_));
+      cf_name_, mutable_cf_options_, vstorage_.get(), &log_buffer_));
  ASSERT_TRUE(compaction.get() != nullptr);
 }

@@ -1339,7 +1254,7 @@ TEST_F(CompactionPickerTest, EstimateCompactionBytesNeeded1) {
  // Size ratio L4/L3 is 9.9
  // After merge from L3, L4 size is 1000900
  Add(4, 11U, "400", "500", 999900);
-  Add(5, 12U, "400", "500", 8007200);
+  Add(5, 11U, "400", "500", 8007200);

  UpdateVersionStorageInfo();

@@ -1604,8 +1519,7 @@ TEST_F(CompactionPickerTest, MaxCompactionBytesHit) {
  UpdateVersionStorageInfo();

  std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
-      cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-      &log_buffer_));
+      cf_name_, mutable_cf_options_, vstorage_.get(), &log_buffer_));
  ASSERT_TRUE(compaction.get() != nullptr);
  ASSERT_EQ(2U, compaction->num_input_levels());
  ASSERT_EQ(1U, compaction->num_input_files(0));
@@ -1629,8 +1543,7 @@ TEST_F(CompactionPickerTest, MaxCompactionBytesNotHit) {
  UpdateVersionStorageInfo();

  std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
-      cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-      &log_buffer_));
+      cf_name_, mutable_cf_options_, vstorage_.get(), &log_buffer_));
  ASSERT_TRUE(compaction.get() != nullptr);
  ASSERT_EQ(2U, compaction->num_input_levels());
  ASSERT_EQ(3U, compaction->num_input_files(0));
@@ -1654,43 +1567,16 @@ TEST_F(CompactionPickerTest, IsTrivialMoveOn) {

  Add(3, 5U, "120", "130", 7000U);
  Add(3, 6U, "170", "180", 7000U);
-  Add(3, 7U, "220", "230", 7000U);
-  Add(3, 8U, "270", "280", 7000U);
+  Add(3, 5U, "220", "230", 7000U);
+  Add(3, 5U, "270", "280", 7000U);
  UpdateVersionStorageInfo();

  std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
-      cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-      &log_buffer_));
+    cf_name_, mutable_cf_options_, vstorage_.get(), &log_buffer_));
  ASSERT_TRUE(compaction.get() != nullptr);
  ASSERT_TRUE(compaction->IsTrivialMove());
 }

-TEST_F(CompactionPickerTest, IsTrivialMoveOffSstPartitioned) {
-  mutable_cf_options_.max_bytes_for_level_base = 10000u;
-  mutable_cf_options_.max_compaction_bytes = 10001u;
-  ioptions_.level_compaction_dynamic_level_bytes = false;
-  ioptions_.sst_partitioner_factory = NewSstPartitionerFixedPrefixFactory(1);
-  NewVersionStorage(6, kCompactionStyleLevel);
-  // A compaction should be triggered and pick file 2
-  Add(1, 1U, "100", "150", 3000U);
-  Add(1, 2U, "151", "200", 3001U);
-  Add(1, 3U, "201", "250", 3000U);
-  Add(1, 4U, "251", "300", 3000U);
-
-  Add(3, 5U, "120", "130", 7000U);
-  Add(3, 6U, "170", "180", 7000U);
-  Add(3, 7U, "220", "230", 7000U);
-  Add(3, 8U, "270", "280", 7000U);
-  UpdateVersionStorageInfo();
-
-  std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
-      cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-      &log_buffer_));
-  ASSERT_TRUE(compaction.get() != nullptr);
-  // No trivial move, because partitioning is applied
-  ASSERT_TRUE(!compaction->IsTrivialMove());
-}
-
 TEST_F(CompactionPickerTest, IsTrivialMoveOff) {
  mutable_cf_options_.max_bytes_for_level_base = 1000000u;
  mutable_cf_options_.max_compaction_bytes = 10000u;
@@ -1707,8 +1593,7 @@ TEST_F(CompactionPickerTest, IsTrivialMoveOff) {
  UpdateVersionStorageInfo();

  std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
-      cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-      &log_buffer_));
+    cf_name_, mutable_cf_options_, vstorage_.get(), &log_buffer_));
  ASSERT_TRUE(compaction.get() != nullptr);
  ASSERT_FALSE(compaction->IsTrivialMove());
 }
@@ -1733,8 +1618,7 @@ TEST_F(CompactionPickerTest, CacheNextCompactionIndex) {
  UpdateVersionStorageInfo();

  std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
-      cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-      &log_buffer_));
+      cf_name_, mutable_cf_options_, vstorage_.get(), &log_buffer_));
  ASSERT_TRUE(compaction.get() != nullptr);
  ASSERT_EQ(1U, compaction->num_input_levels());
  ASSERT_EQ(1U, compaction->num_input_files(0));
@@ -1743,8 +1627,7 @@ TEST_F(CompactionPickerTest, CacheNextCompactionIndex) {
  ASSERT_EQ(2, vstorage_->NextCompactionIndex(1 /* level */));

  compaction.reset(level_compaction_picker.PickCompaction(
-      cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-      &log_buffer_));
+      cf_name_, mutable_cf_options_, vstorage_.get(), &log_buffer_));
  ASSERT_TRUE(compaction.get() != nullptr);
  ASSERT_EQ(1U, compaction->num_input_levels());
  ASSERT_EQ(1U, compaction->num_input_files(0));
@@ -1753,8 +1636,7 @@ TEST_F(CompactionPickerTest, CacheNextCompactionIndex) {
  ASSERT_EQ(3, vstorage_->NextCompactionIndex(1 /* level */));

  compaction.reset(level_compaction_picker.PickCompaction(
-      cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-      &log_buffer_));
+      cf_name_, mutable_cf_options_, vstorage_.get(), &log_buffer_));
  ASSERT_TRUE(compaction.get() == nullptr);
  ASSERT_EQ(4, vstorage_->NextCompactionIndex(1 /* level */));
 }
@@ -1779,8 +1661,7 @@ TEST_F(CompactionPickerTest, IntraL0MaxCompactionBytesNotHit) {
  UpdateVersionStorageInfo();

  std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
-      cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-      &log_buffer_));
+      cf_name_, mutable_cf_options_, vstorage_.get(), &log_buffer_));
  ASSERT_TRUE(compaction.get() != nullptr);
  ASSERT_EQ(1U, compaction->num_input_levels());
  ASSERT_EQ(5U, compaction->num_input_files(0));
@@ -1810,8 +1691,7 @@ TEST_F(CompactionPickerTest, IntraL0MaxCompactionBytesHit) {
  UpdateVersionStorageInfo();

  std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
-      cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-      &log_buffer_));
+      cf_name_, mutable_cf_options_, vstorage_.get(), &log_buffer_));
  ASSERT_TRUE(compaction.get() != nullptr);
  ASSERT_EQ(1U, compaction->num_input_levels());
  ASSERT_EQ(4U, compaction->num_input_files(0));
@@ -1843,8 +1723,7 @@ TEST_F(CompactionPickerTest, IntraL0ForEarliestSeqno) {
  UpdateVersionStorageInfo();

  std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
-      cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-      &log_buffer_, 107));
+      cf_name_, mutable_cf_options_, vstorage_.get(), &log_buffer_, 107));
  ASSERT_TRUE(compaction.get() != nullptr);
  ASSERT_EQ(1U, compaction->num_input_levels());
  ASSERT_EQ(4U, compaction->num_input_files(0));
@@ -1853,337 +1732,7 @@ TEST_F(CompactionPickerTest, IntraL0ForEarliestSeqno) {
  ASSERT_EQ(0, compaction->output_level());
 }

-#ifndef ROCKSDB_LITE
-TEST_F(CompactionPickerTest, UniversalMarkedCompactionFullOverlap) {
-  const uint64_t kFileSize = 100000;
-
-  ioptions_.compaction_style = kCompactionStyleUniversal;
-  UniversalCompactionPicker universal_compaction_picker(ioptions_, &icmp_);
-
-  // This test covers the case where a "regular" universal compaction is
-  // scheduled first, followed by a delete triggered compaction. The latter
-  // should fail
-  NewVersionStorage(5, kCompactionStyleUniversal);
-
-  Add(0, 1U, "150", "200", kFileSize, 0, 500, 550);
-  Add(0, 2U, "201", "250", 2 * kFileSize, 0, 401, 450);
-  Add(0, 4U, "260", "300", 4 * kFileSize, 0, 260, 300);
-  Add(3, 5U, "010", "080", 8 * kFileSize, 0, 200, 251);
-  Add(4, 3U, "301", "350", 8 * kFileSize, 0, 101, 150);
-  Add(4, 6U, "501", "750", 8 * kFileSize, 0, 101, 150);
-
-  UpdateVersionStorageInfo();
-
-  std::unique_ptr<Compaction> compaction(
-      universal_compaction_picker.PickCompaction(
-          cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-          &log_buffer_));
-
-  ASSERT_TRUE(compaction);
-  // Validate that its a compaction to reduce sorted runs
-  ASSERT_EQ(CompactionReason::kUniversalSortedRunNum,
-            compaction->compaction_reason());
-  ASSERT_EQ(0, compaction->output_level());
-  ASSERT_EQ(0, compaction->start_level());
-  ASSERT_EQ(2U, compaction->num_input_files(0));
-
-  AddVersionStorage();
-  // Simulate a flush and mark the file for compaction
-  Add(0, 7U, "150", "200", kFileSize, 0, 551, 600, 0, true);
-  UpdateVersionStorageInfo();
-
-  std::unique_ptr<Compaction> compaction2(
-      universal_compaction_picker.PickCompaction(
-          cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-          &log_buffer_));
-  ASSERT_FALSE(compaction2);
-}
-
-TEST_F(CompactionPickerTest, UniversalMarkedCompactionFullOverlap2) {
-  const uint64_t kFileSize = 100000;
-
-  ioptions_.compaction_style = kCompactionStyleUniversal;
-  UniversalCompactionPicker universal_compaction_picker(ioptions_, &icmp_);
-
-  // This test covers the case where a delete triggered compaction is
-  // scheduled first, followed by a "regular" compaction. The latter
-  // should fail
-  NewVersionStorage(5, kCompactionStyleUniversal);
-
-  // Mark file number 4 for compaction
-  Add(0, 4U, "260", "300", 4 * kFileSize, 0, 260, 300, 0, true);
-  Add(3, 5U, "240", "290", 8 * kFileSize, 0, 201, 250);
-  Add(4, 3U, "301", "350", 8 * kFileSize, 0, 101, 150);
-  Add(4, 6U, "501", "750", 8 * kFileSize, 0, 101, 150);
-  UpdateVersionStorageInfo();
-
-  std::unique_ptr<Compaction> compaction(
-      universal_compaction_picker.PickCompaction(
-          cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-          &log_buffer_));
-
-  ASSERT_TRUE(compaction);
-  // Validate that its a delete triggered compaction
-  ASSERT_EQ(CompactionReason::kFilesMarkedForCompaction,
-            compaction->compaction_reason());
-  ASSERT_EQ(3, compaction->output_level());
-  ASSERT_EQ(0, compaction->start_level());
-  ASSERT_EQ(1U, compaction->num_input_files(0));
-  ASSERT_EQ(1U, compaction->num_input_files(1));
-
-  AddVersionStorage();
-  Add(0, 1U, "150", "200", kFileSize, 0, 500, 550);
-  Add(0, 2U, "201", "250", 2 * kFileSize, 0, 401, 450);
-  UpdateVersionStorageInfo();
-
-  std::unique_ptr<Compaction> compaction2(
-      universal_compaction_picker.PickCompaction(
-          cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-          &log_buffer_));
-  ASSERT_FALSE(compaction2);
-}
-
-TEST_F(CompactionPickerTest, UniversalMarkedCompactionStartOutputOverlap) {
-  // The case where universal periodic compaction can be picked
-  // with some newer files being compacted.
-  const uint64_t kFileSize = 100000;
-
-  ioptions_.compaction_style = kCompactionStyleUniversal;
-
-  bool input_level_overlap = false;
-  bool output_level_overlap = false;
-  // Let's mark 2 files in 2 different levels for compaction. The
-  // compaction picker will randomly pick one, so use the sync point to
-  // ensure a deterministic order. Loop until both cases are covered
-  size_t random_index = 0;
-  SyncPoint::GetInstance()->SetCallBack(
-      "CompactionPicker::PickFilesMarkedForCompaction", [&](void* arg) {
-        size_t* index = static_cast<size_t*>(arg);
-        *index = random_index;
-      });
-  SyncPoint::GetInstance()->EnableProcessing();
-  while (!input_level_overlap || !output_level_overlap) {
-    // Ensure that the L0 file gets picked first
-    random_index = !input_level_overlap ? 0 : 1;
-    UniversalCompactionPicker universal_compaction_picker(ioptions_, &icmp_);
-    NewVersionStorage(5, kCompactionStyleUniversal);
-
-    Add(0, 1U, "260", "300", 4 * kFileSize, 0, 260, 300, 0, true);
-    Add(3, 2U, "010", "020", 2 * kFileSize, 0, 201, 248);
-    Add(3, 3U, "250", "270", 2 * kFileSize, 0, 202, 249);
-    Add(3, 4U, "290", "310", 2 * kFileSize, 0, 203, 250);
-    Add(3, 5U, "310", "320", 2 * kFileSize, 0, 204, 251, 0, true);
-    Add(4, 6U, "301", "350", 8 * kFileSize, 0, 101, 150);
-    Add(4, 7U, "501", "750", 8 * kFileSize, 0, 101, 150);
-    UpdateVersionStorageInfo();
-
-    std::unique_ptr<Compaction> compaction(
-        universal_compaction_picker.PickCompaction(
-            cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-            &log_buffer_));
-
-    ASSERT_TRUE(compaction);
-    // Validate that its a delete triggered compaction
-    ASSERT_EQ(CompactionReason::kFilesMarkedForCompaction,
-              compaction->compaction_reason());
-    ASSERT_TRUE(compaction->start_level() == 0 ||
-                compaction->start_level() == 3);
-    if (compaction->start_level() == 0) {
-      // The L0 file was picked. The next compaction will detect an
-      // overlap on its input level
-      input_level_overlap = true;
-      ASSERT_EQ(3, compaction->output_level());
-      ASSERT_EQ(1U, compaction->num_input_files(0));
-      ASSERT_EQ(3U, compaction->num_input_files(1));
-    } else {
-      // The level 3 file was picked. The next compaction will pick
-      // the L0 file and will detect overlap when adding output
-      // level inputs
-      output_level_overlap = true;
-      ASSERT_EQ(4, compaction->output_level());
-      ASSERT_EQ(2U, compaction->num_input_files(0));
-      ASSERT_EQ(1U, compaction->num_input_files(1));
-    }
-
-    vstorage_->ComputeCompactionScore(ioptions_, mutable_cf_options_);
-    // After recomputing the compaction score, only one marked file will remain
-    random_index = 0;
-    std::unique_ptr<Compaction> compaction2(
-        universal_compaction_picker.PickCompaction(
-            cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-            &log_buffer_));
-    ASSERT_FALSE(compaction2);
-    DeleteVersionStorage();
-  }
-}
-
-TEST_F(CompactionPickerTest, UniversalMarkedL0NoOverlap) {
-  const uint64_t kFileSize = 100000;
-
-  ioptions_.compaction_style = kCompactionStyleUniversal;
-  UniversalCompactionPicker universal_compaction_picker(ioptions_, &icmp_);
-
-  // This test covers the case where a delete triggered compaction is
-  // scheduled and should result in a full compaction
-  NewVersionStorage(1, kCompactionStyleUniversal);
-
-  // Mark file number 4 for compaction
-  Add(0, 4U, "260", "300", 1 * kFileSize, 0, 260, 300, 0, true);
-  Add(0, 5U, "240", "290", 2 * kFileSize, 0, 201, 250);
-  Add(0, 3U, "301", "350", 4 * kFileSize, 0, 101, 150);
-  Add(0, 6U, "501", "750", 8 * kFileSize, 0, 50, 100);
-  UpdateVersionStorageInfo();
-
-  std::unique_ptr<Compaction> compaction(
-      universal_compaction_picker.PickCompaction(
-          cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-          &log_buffer_));
-
-  ASSERT_TRUE(compaction);
-  // Validate that its a delete triggered compaction
-  ASSERT_EQ(CompactionReason::kFilesMarkedForCompaction,
-            compaction->compaction_reason());
-  ASSERT_EQ(0, compaction->output_level());
-  ASSERT_EQ(0, compaction->start_level());
-  ASSERT_EQ(4U, compaction->num_input_files(0));
-  ASSERT_TRUE(file_map_[4].first->being_compacted);
-  ASSERT_TRUE(file_map_[5].first->being_compacted);
-  ASSERT_TRUE(file_map_[3].first->being_compacted);
-  ASSERT_TRUE(file_map_[6].first->being_compacted);
-}
-
-TEST_F(CompactionPickerTest, UniversalMarkedL0WithOverlap) {
-  const uint64_t kFileSize = 100000;
-
-  ioptions_.compaction_style = kCompactionStyleUniversal;
-  UniversalCompactionPicker universal_compaction_picker(ioptions_, &icmp_);
-
-  // This test covers the case where a file is being compacted, and a
-  // delete triggered compaction is then scheduled. The latter should stop
-  // at the first file being compacted
-  NewVersionStorage(1, kCompactionStyleUniversal);
-
-  // Mark file number 4 for compaction
-  Add(0, 4U, "260", "300", 1 * kFileSize, 0, 260, 300, 0, true);
-  Add(0, 5U, "240", "290", 2 * kFileSize, 0, 201, 250);
-  Add(0, 3U, "301", "350", 4 * kFileSize, 0, 101, 150);
-  Add(0, 6U, "501", "750", 8 * kFileSize, 0, 50, 100);
-  UpdateVersionStorageInfo();
-  file_map_[3].first->being_compacted = true;
-
-  std::unique_ptr<Compaction> compaction(
-      universal_compaction_picker.PickCompaction(
-          cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-          &log_buffer_));
-
-  ASSERT_TRUE(compaction);
-  // Validate that its a delete triggered compaction
-  ASSERT_EQ(CompactionReason::kFilesMarkedForCompaction,
-            compaction->compaction_reason());
-  ASSERT_EQ(0, compaction->output_level());
-  ASSERT_EQ(0, compaction->start_level());
-  ASSERT_EQ(2U, compaction->num_input_files(0));
-  ASSERT_TRUE(file_map_[4].first->being_compacted);
-  ASSERT_TRUE(file_map_[5].first->being_compacted);
-}
-
-TEST_F(CompactionPickerTest, UniversalMarkedL0Overlap2) {
-  const uint64_t kFileSize = 100000;
-
-  ioptions_.compaction_style = kCompactionStyleUniversal;
-  UniversalCompactionPicker universal_compaction_picker(ioptions_, &icmp_);
-
-  // This test covers the case where a delete triggered compaction is
-  // scheduled first, followed by a "regular" compaction. The latter
-  // should fail
-  NewVersionStorage(1, kCompactionStyleUniversal);
-
-  // Mark file number 4 for compaction
-  Add(0, 4U, "260", "300", 1 * kFileSize, 0, 260, 300);
-  Add(0, 5U, "240", "290", 2 * kFileSize, 0, 201, 250, 0, true);
-  Add(0, 3U, "301", "350", 4 * kFileSize, 0, 101, 150);
-  Add(0, 6U, "501", "750", 8 * kFileSize, 0, 50, 100);
-  UpdateVersionStorageInfo();
-
-  std::unique_ptr<Compaction> compaction(
-      universal_compaction_picker.PickCompaction(
-          cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-          &log_buffer_));
-
-  ASSERT_TRUE(compaction);
-  // Validate that its a delete triggered compaction
-  ASSERT_EQ(CompactionReason::kFilesMarkedForCompaction,
-            compaction->compaction_reason());
-  ASSERT_EQ(0, compaction->output_level());
-  ASSERT_EQ(0, compaction->start_level());
-  ASSERT_EQ(3U, compaction->num_input_files(0));
-  ASSERT_TRUE(file_map_[5].first->being_compacted);
-  ASSERT_TRUE(file_map_[3].first->being_compacted);
-  ASSERT_TRUE(file_map_[6].first->being_compacted);
-
-  AddVersionStorage();
-  Add(0, 1U, "150", "200", kFileSize, 0, 500, 550);
-  Add(0, 2U, "201", "250", kFileSize, 0, 401, 450);
-  UpdateVersionStorageInfo();
-
-  std::unique_ptr<Compaction> compaction2(
-      universal_compaction_picker.PickCompaction(
-          cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-          &log_buffer_));
-  ASSERT_TRUE(compaction2);
-  ASSERT_EQ(3U, compaction->num_input_files(0));
-  ASSERT_TRUE(file_map_[1].first->being_compacted);
-  ASSERT_TRUE(file_map_[2].first->being_compacted);
-  ASSERT_TRUE(file_map_[4].first->being_compacted);
-}
-
-TEST_F(CompactionPickerTest, UniversalMarkedManualCompaction) {
-  const uint64_t kFileSize = 100000;
-  const int kNumLevels = 7;
-
-  // This test makes sure the `files_marked_for_compaction_` is updated after
-  // creating manual compaction.
-  ioptions_.compaction_style = kCompactionStyleUniversal;
-  UniversalCompactionPicker universal_compaction_picker(ioptions_, &icmp_);
-
-  NewVersionStorage(kNumLevels, kCompactionStyleUniversal);
-
-  // Add 3 files marked for compaction
-  Add(0, 3U, "301", "350", 4 * kFileSize, 0, 101, 150, 0, true);
-  Add(0, 4U, "260", "300", 1 * kFileSize, 0, 260, 300, 0, true);
-  Add(0, 5U, "240", "290", 2 * kFileSize, 0, 201, 250, 0, true);
-  UpdateVersionStorageInfo();
-
-  // All 3 files are marked for compaction
-  ASSERT_EQ(3U, vstorage_->FilesMarkedForCompaction().size());
-
-  bool manual_conflict = false;
-  InternalKey* manual_end = NULL;
-  std::unique_ptr<Compaction> compaction(
-      universal_compaction_picker.CompactRange(
-          cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
-          ColumnFamilyData::kCompactAllLevels, 6, CompactRangeOptions(), NULL,
-          NULL, &manual_end, &manual_conflict, port::kMaxUint64));
-
-  ASSERT_TRUE(compaction);
-
-  ASSERT_EQ(CompactionReason::kManualCompaction,
-            compaction->compaction_reason());
-  ASSERT_EQ(kNumLevels - 1, compaction->output_level());
-  ASSERT_EQ(0, compaction->start_level());
-  ASSERT_EQ(3U, compaction->num_input_files(0));
-  ASSERT_TRUE(file_map_[3].first->being_compacted);
-  ASSERT_TRUE(file_map_[4].first->being_compacted);
-  ASSERT_TRUE(file_map_[5].first->being_compacted);
-
-  // After creating the manual compaction, all files should be cleared from
-  // `FilesMarkedForCompaction`. So they won't be picked by others.
-  ASSERT_EQ(0U, vstorage_->FilesMarkedForCompaction().size());
-}
-
-#endif  // ROCKSDB_LITE
-
-}  // namespace ROCKSDB_NAMESPACE
+}  // namespace rocksdb

 int main(int argc, char** argv) {
  ::testing::InitGoogleTest(&argc, argv);
@@ -23,7 +23,7 @@
 #include "util/random.h"
 #include "util/string_util.h"

-namespace ROCKSDB_NAMESPACE {
+namespace rocksdb {
 namespace {
 // A helper class that form universal compactions. The class is used by
 // UniversalCompactionPicker::PickCompaction().
@@ -31,16 +31,17 @@ namespace {
 // PickCompaction().
 class UniversalCompactionBuilder {
 public:
-  UniversalCompactionBuilder(
-      const ImmutableCFOptions& ioptions, const InternalKeyComparator* icmp,
-      const std::string& cf_name, const MutableCFOptions& mutable_cf_options,
-      const MutableDBOptions& mutable_db_options, VersionStorageInfo* vstorage,
-      UniversalCompactionPicker* picker, LogBuffer* log_buffer)
+  UniversalCompactionBuilder(const ImmutableCFOptions& ioptions,
+                             const InternalKeyComparator* icmp,
+                             const std::string& cf_name,
+                             const MutableCFOptions& mutable_cf_options,
+                             VersionStorageInfo* vstorage,
+                             UniversalCompactionPicker* picker,
+                             LogBuffer* log_buffer)
      : ioptions_(ioptions),
        icmp_(icmp),
        cf_name_(cf_name),
        mutable_cf_options_(mutable_cf_options),
-        mutable_db_options_(mutable_db_options),
        vstorage_(vstorage),
        picker_(picker),
        log_buffer_(log_buffer) {}
@@ -114,13 +115,13 @@ class UniversalCompactionBuilder {
  std::vector<SortedRun> sorted_runs_;
  const std::string& cf_name_;
  const MutableCFOptions& mutable_cf_options_;
-  const MutableDBOptions& mutable_db_options_;
  VersionStorageInfo* vstorage_;
  UniversalCompactionPicker* picker_;
  LogBuffer* log_buffer_;

  static std::vector<SortedRun> CalculateSortedRuns(
-      const VersionStorageInfo& vstorage);
+      const VersionStorageInfo& vstorage, const ImmutableCFOptions& ioptions,
+      const MutableCFOptions& mutable_cf_options);

  // Pick a path ID to place a newly generated file, with its estimated file
  // size.
@@ -277,11 +278,11 @@ bool UniversalCompactionPicker::NeedsCompaction(

 Compaction* UniversalCompactionPicker::PickCompaction(
    const std::string& cf_name, const MutableCFOptions& mutable_cf_options,
-    const MutableDBOptions& mutable_db_options, VersionStorageInfo* vstorage,
-    LogBuffer* log_buffer, SequenceNumber /* earliest_memtable_seqno */) {
+    VersionStorageInfo* vstorage, LogBuffer* log_buffer,
+    SequenceNumber /* earliest_memtable_seqno */) {
  UniversalCompactionBuilder builder(ioptions_, icmp_, cf_name,
-                                     mutable_cf_options, mutable_db_options,
-                                     vstorage, this, log_buffer);
+                                     mutable_cf_options, vstorage, this,
+                                     log_buffer);
  return builder.PickCompaction();
 }

@@ -324,7 +325,8 @@ void UniversalCompactionBuilder::SortedRun::DumpSizeInfo(

 std::vector<UniversalCompactionBuilder::SortedRun>
 UniversalCompactionBuilder::CalculateSortedRuns(
-    const VersionStorageInfo& vstorage) {
+    const VersionStorageInfo& vstorage, const ImmutableCFOptions& /*ioptions*/,
+    const MutableCFOptions& mutable_cf_options) {
  std::vector<UniversalCompactionBuilder::SortedRun> ret;
  for (FileMetaData* f : vstorage.LevelFiles(0)) {
    ret.emplace_back(0, f, f->fd.GetFileSize(), f->compensated_file_size,
@@ -334,16 +336,27 @@ UniversalCompactionBuilder::CalculateSortedRuns(
    uint64_t total_compensated_size = 0U;
    uint64_t total_size = 0U;
    bool being_compacted = false;
+    bool is_first = true;
    for (FileMetaData* f : vstorage.LevelFiles(level)) {
      total_compensated_size += f->compensated_file_size;
      total_size += f->fd.GetFileSize();
-      // Size amp, read amp and periodic compactions always include all files
-      // for a non-zero level. However, a delete triggered compaction and
-      // a trivial move might pick a subset of files in a sorted run. So
-      // always check all files in a sorted run and mark the entire run as
-      // being compacted if one or more files are being compacted
-      if (f->being_compacted) {
+      if (mutable_cf_options.compaction_options_universal.allow_trivial_move ==
+          true) {
+        if (f->being_compacted) {
+          being_compacted = f->being_compacted;
+        }
+      } else {
+        // Compaction always includes all files for a non-zero level, so for a
+        // non-zero level, all the files should share the same being_compacted
+        // value.
+        // This assumption is only valid when
+        // mutable_cf_options.compaction_options_universal.allow_trivial_move
+        // is false
+        assert(is_first || f->being_compacted == being_compacted);
+      }
+      if (is_first) {
        being_compacted = f->being_compacted;
+        is_first = false;
      }
    }
    if (total_compensated_size > 0) {
@@ -359,7 +372,8 @@ UniversalCompactionBuilder::CalculateSortedRuns(
 Compaction* UniversalCompactionBuilder::PickCompaction() {
  const int kLevel0 = 0;
  score_ = vstorage_->CompactionScore(kLevel0);
-  sorted_runs_ = CalculateSortedRuns(*vstorage_);
+  sorted_runs_ =
+      CalculateSortedRuns(*vstorage_, ioptions_, mutable_cf_options_);

  if (sorted_runs_.size() == 0 ||
      (vstorage_->FilesMarkedForPeriodicCompaction().empty() &&
@@ -375,7 +389,7 @@ Compaction* UniversalCompactionBuilder::PickCompaction() {
  VersionStorageInfo::LevelSummaryStorage tmp;
  ROCKS_LOG_BUFFER_MAX_SZ(
      log_buffer_, 3072,
-      "[%s] Universal: sorted runs: %" ROCKSDB_PRIszt " files: %s\n",
+      "[%s] Universal: sorted runs files(%" ROCKSDB_PRIszt "): %s\n",
      cf_name_.c_str(), sorted_runs_.size(), vstorage_->LevelSummary(&tmp));

  Compaction* c = nullptr;
@@ -461,6 +475,7 @@ Compaction* UniversalCompactionBuilder::PickCompaction() {

 // validate that all the chosen files of L0 are non overlapping in time
 #ifndef NDEBUG
+  SequenceNumber prev_smallest_seqno = 0U;
  bool is_first = true;

  size_t level_index = 0U;
@@ -470,6 +485,7 @@ Compaction* UniversalCompactionBuilder::PickCompaction() {
      if (is_first) {
        is_first = false;
      }
+      prev_smallest_seqno = f->fd.smallest_seqno;
    }
    level_index = 1U;
  }
@@ -481,7 +497,16 @@ Compaction* UniversalCompactionBuilder::PickCompaction() {
                              &largest_seqno);
      if (is_first) {
        is_first = false;
+      } else if (prev_smallest_seqno > 0) {
+        // A level is considered as the bottommost level if there are
+        // no files in higher levels or if files in higher levels do
+        // not overlap with the files being compacted. Sequence numbers
+        // of files in bottommost level can be set to 0 to help
+        // compression. As a result, the following assert may not hold
+        // if the prev_smallest_seqno is 0.
+        assert(prev_smallest_seqno > largest_seqno);
      }
+      prev_smallest_seqno = smallest_seqno;
    }
  }
 #endif
@@ -719,14 +744,14 @@ Compaction* UniversalCompactionBuilder::PickCompactionToReduceSortedRuns(
    compaction_reason = CompactionReason::kUniversalSortedRunNum;
  }
  return new Compaction(
-      vstorage_, ioptions_, mutable_cf_options_, mutable_db_options_,
-      std::move(inputs), output_level,
+      vstorage_, ioptions_, mutable_cf_options_, std::move(inputs),
+      output_level,
      MaxFileSizeForLevel(mutable_cf_options_, output_level,
                          kCompactionStyleUniversal),
      LLONG_MAX, path_id,
      GetCompressionType(ioptions_, vstorage_, mutable_cf_options_, start_level,
                         1, enable_compression),
-      GetCompressionOptions(mutable_cf_options_, vstorage_, start_level,
+      GetCompressionOptions(ioptions_, vstorage_, start_level,
                            enable_compression),
      /* max_subcompactions */ 0, /* grandparents */ {}, /* is manual */ false,
      score_, false /* deletion_compaction */, compaction_reason);
@@ -754,7 +779,7 @@ Compaction* UniversalCompactionBuilder::PickCompactionToReduceSizeAmp() {
  }

  // Skip files that are already being compacted
-  for (size_t loop = 0; loop + 1 < sorted_runs_.size(); loop++) {
+  for (size_t loop = 0; loop < sorted_runs_.size() - 1; loop++) {
    sr = &sorted_runs_[loop];
    if (!sr->being_compacted) {
      start_index = loop;  // Consider this as the first candidate.
@@ -782,7 +807,7 @@ Compaction* UniversalCompactionBuilder::PickCompactionToReduceSizeAmp() {
  }

  // keep adding up all the remaining files
-  for (size_t loop = start_index; loop + 1 < sorted_runs_.size(); loop++) {
+  for (size_t loop = start_index; loop < sorted_runs_.size() - 1; loop++) {
    sr = &sorted_runs_[loop];
    if (sr->being_compacted) {
      char file_num_buf[kFormatFileNumberBufSize];
@@ -834,39 +859,19 @@ Compaction* UniversalCompactionBuilder::PickDeleteTriggeredCompaction() {
    // space by processing files marked for compaction due to high tombstone
    // density, let's do the same thing as compaction to reduce size amp which
    // has the same goals.
-    int start_index = -1;
+    bool compact = false;

    start_level_inputs.level = 0;
    start_level_inputs.files.clear();
    output_level = 0;
-    // Find the first file marked for compaction. Ignore the last file
-    for (size_t loop = 0; loop + 1 < sorted_runs_.size(); loop++) {
-      SortedRun* sr = &sorted_runs_[loop];
-      if (sr->being_compacted) {
-        continue;
-      }
-      FileMetaData* f = vstorage_->LevelFiles(0)[loop];
+    for (FileMetaData* f : vstorage_->LevelFiles(0)) {
      if (f->marked_for_compaction) {
+        compact = true;
+      }
+      if (compact) {
        start_level_inputs.files.push_back(f);
-        start_index =
-            static_cast<int>(loop);  // Consider this as the first candidate.
-        break;
      }
    }
-    if (start_index < 0) {
-      // Either no file marked, or they're already being compacted
-      return nullptr;
-    }
-
-    for (size_t loop = start_index + 1; loop < sorted_runs_.size(); loop++) {
-      SortedRun* sr = &sorted_runs_[loop];
-      if (sr->being_compacted) {
-        break;
-      }
-
-      FileMetaData* f = vstorage_->LevelFiles(0)[loop];
-      start_level_inputs.files.push_back(f);
-    }
    if (start_level_inputs.size() <= 1) {
      // If only the last file in L0 is marked for compaction, ignore it
      return nullptr;
@@ -947,15 +952,15 @@ Compaction* UniversalCompactionBuilder::PickDeleteTriggeredCompaction() {
  uint32_t path_id =
      GetPathId(ioptions_, mutable_cf_options_, estimated_total_size);
  return new Compaction(
-      vstorage_, ioptions_, mutable_cf_options_, mutable_db_options_,
-      std::move(inputs), output_level,
+      vstorage_, ioptions_, mutable_cf_options_, std::move(inputs),
+      output_level,
      MaxFileSizeForLevel(mutable_cf_options_, output_level,
                          kCompactionStyleUniversal),
      /* max_grandparent_overlap_bytes */ LLONG_MAX, path_id,
      GetCompressionType(ioptions_, vstorage_, mutable_cf_options_,
                         output_level, 1),
-      GetCompressionOptions(mutable_cf_options_, vstorage_, output_level),
-      /* max_subcompactions */ 0, /* grandparents */ {}, /* is manual */ false,
+      GetCompressionOptions(ioptions_, vstorage_, output_level),
+      /* max_subcompactions */ 0, /* grandparents */ {}, /* is manual */ true,
      score_, false /* deletion_compaction */,
      CompactionReason::kFilesMarkedForCompaction);
 }
@@ -996,9 +1001,6 @@ Compaction* UniversalCompactionBuilder::PickCompactionToOldest(
      comp_reason_print_string = "size amp";
    } else {
      assert(false);
-      comp_reason_print_string = "unknown: ";
-      comp_reason_print_string.append(
-          std::to_string(static_cast<int>(compaction_reason)));
    }

    char file_num_buf[256];
@@ -1020,14 +1022,14 @@ Compaction* UniversalCompactionBuilder::PickCompactionToOldest(
  // compaction_options_universal.compression_size_percent,
  // because we always compact all the files, so always compress.
  return new Compaction(
-      vstorage_, ioptions_, mutable_cf_options_, mutable_db_options_,
-      std::move(inputs), output_level,
+      vstorage_, ioptions_, mutable_cf_options_, std::move(inputs),
+      output_level,
      MaxFileSizeForLevel(mutable_cf_options_, output_level,
                          kCompactionStyleUniversal),
      LLONG_MAX, path_id,
-      GetCompressionType(ioptions_, vstorage_, mutable_cf_options_,
-                         output_level, 1, true /* enable_compression */),
-      GetCompressionOptions(mutable_cf_options_, vstorage_, output_level,
+      GetCompressionType(ioptions_, vstorage_, mutable_cf_options_, start_level,
+                         1, true /* enable_compression */),
+      GetCompressionOptions(ioptions_, vstorage_, start_level,
                            true /* enable_compression */),
      /* max_subcompactions */ 0, /* grandparents */ {}, /* is manual */ false,
      score_, false /* deletion_compaction */, compaction_reason);
@@ -1098,6 +1100,6 @@ Compaction* UniversalCompactionBuilder::PickPeriodicCompaction() {

  return c;
 }
-}  // namespace ROCKSDB_NAMESPACE
+}  // namespace rocksdb

 #endif  // !ROCKSDB_LITE
@@ -12,7 +12,7 @@

 #include "db/compaction/compaction_picker.h"

-namespace ROCKSDB_NAMESPACE {
+namespace rocksdb {
 class UniversalCompactionPicker : public CompactionPicker {
 public:
  UniversalCompactionPicker(const ImmutableCFOptions& ioptions,
@@ -20,13 +20,12 @@ class UniversalCompactionPicker : public CompactionPicker {
      : CompactionPicker(ioptions, icmp) {}
  virtual Compaction* PickCompaction(
      const std::string& cf_name, const MutableCFOptions& mutable_cf_options,
-      const MutableDBOptions& mutable_db_options, VersionStorageInfo* vstorage,
-      LogBuffer* log_buffer,
+      VersionStorageInfo* vstorage, LogBuffer* log_buffer,
      SequenceNumber earliest_memtable_seqno = kMaxSequenceNumber) override;
  virtual int MaxOutputLevel() const override { return NumberLevels() - 1; }

  virtual bool NeedsCompaction(
      const VersionStorageInfo* vstorage) const override;
 };
-}  // namespace ROCKSDB_NAMESPACE
+}  // namespace rocksdb
 #endif  // !ROCKSDB_LITE
@@ -1,44 +0,0 @@
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
-//  This source code is licensed under both the GPLv2 (found in the
-//  COPYING file in the root directory) and Apache 2.0 License
-//  (found in the LICENSE.Apache file in the root directory).
-//
-
-#include "rocksdb/sst_partitioner.h"
-
-#include <algorithm>
-
-namespace ROCKSDB_NAMESPACE {
-
-PartitionerResult SstPartitionerFixedPrefix::ShouldPartition(
-    const PartitionerRequest& request) {
-  Slice last_key_fixed(*request.prev_user_key);
-  if (last_key_fixed.size() > len_) {
-    last_key_fixed.size_ = len_;
-  }
-  Slice current_key_fixed(*request.current_user_key);
-  if (current_key_fixed.size() > len_) {
-    current_key_fixed.size_ = len_;
-  }
-  return last_key_fixed.compare(current_key_fixed) != 0 ? kRequired
-                                                        : kNotRequired;
-}
-
-bool SstPartitionerFixedPrefix::CanDoTrivialMove(
-    const Slice& smallest_user_key, const Slice& largest_user_key) {
-  return ShouldPartition(PartitionerRequest(smallest_user_key, largest_user_key,
-                                            0)) == kNotRequired;
-}
-
-std::unique_ptr<SstPartitioner>
-SstPartitionerFixedPrefixFactory::CreatePartitioner(
-    const SstPartitioner::Context& /* context */) const {
-  return std::unique_ptr<SstPartitioner>(new SstPartitionerFixedPrefix(len_));
-}
-
-std::shared_ptr<SstPartitionerFactory> NewSstPartitionerFixedPrefixFactory(
-    size_t prefix_len) {
-  return std::make_shared<SstPartitionerFixedPrefixFactory>(prefix_len);
-}
-
-}  // namespace ROCKSDB_NAMESPACE
@@ -13,16 +13,15 @@
 #include "test_util/testutil.h"
 #include "util/hash.h"
 #include "util/kv_map.h"
-#include "util/random.h"
 #include "util/string_util.h"
 #include "utilities/merge_operators.h"

 using std::unique_ptr;

-namespace ROCKSDB_NAMESPACE {
+namespace rocksdb {
 namespace {

-static const Comparator* kTestComparator = nullptr;
+static const Comparator* comparator;

 class KVIter : public Iterator {
 public:
@@ -75,7 +74,7 @@ void AssertItersEqual(Iterator* iter1, Iterator* iter2) {
 void DoRandomIteraratorTest(DB* db, std::vector<std::string> source_strings,
                            Random* rnd, int num_writes, int num_iter_ops,
                            int num_trigger_flush) {
-  stl_wrappers::KVMap map((stl_wrappers::LessOfComparator(kTestComparator)));
+  stl_wrappers::KVMap map((stl_wrappers::LessOfComparator(comparator)));

  for (int i = 0; i < num_writes; i++) {
    if (num_trigger_flush > 0 && i != 0 && i % num_trigger_flush == 0) {
@@ -264,19 +263,19 @@ class ComparatorDBTest

 public:
  ComparatorDBTest() : env_(Env::Default()), db_(nullptr) {
-    kTestComparator = BytewiseComparator();
+    comparator = BytewiseComparator();
    dbname_ = test::PerThreadDBPath("comparator_db_test");
    BlockBasedTableOptions toptions;
    toptions.format_version = GetParam();
    last_options_.table_factory.reset(
-        ROCKSDB_NAMESPACE::NewBlockBasedTableFactory(toptions));
+        rocksdb::NewBlockBasedTableFactory(toptions));
    EXPECT_OK(DestroyDB(dbname_, last_options_));
  }

  ~ComparatorDBTest() override {
    delete db_;
    EXPECT_OK(DestroyDB(dbname_, last_options_));
-    kTestComparator = BytewiseComparator();
+    comparator = BytewiseComparator();
  }

  DB* GetDB() { return db_; }
@@ -287,7 +286,7 @@ class ComparatorDBTest
    } else {
      comparator_guard.reset();
    }
-    kTestComparator = cmp;
+    comparator = cmp;
    last_options_.comparator = cmp;
  }

@@ -335,7 +334,7 @@ TEST_P(ComparatorDBTest, SimpleSuffixReverseComparator) {

  for (int rnd_seed = 301; rnd_seed < 316; rnd_seed++) {
    Options* opt = GetOptions();
-    opt->comparator = kTestComparator;
+    opt->comparator = comparator;
    DestroyAndReopen();
    Random rnd(rnd_seed);

@@ -343,12 +342,12 @@ TEST_P(ComparatorDBTest, SimpleSuffixReverseComparator) {
    std::vector<std::string> source_prefixes;
    // Randomly generate 5 prefixes
    for (int i = 0; i < 5; i++) {
-      source_prefixes.push_back(rnd.HumanReadableString(8));
+      source_prefixes.push_back(test::RandomHumanReadableString(&rnd, 8));
    }
    for (int j = 0; j < 20; j++) {
      int prefix_index = rnd.Uniform(static_cast<int>(source_prefixes.size()));
      std::string key = source_prefixes[prefix_index] +
-                        rnd.HumanReadableString(rnd.Uniform(8));
+                        test::RandomHumanReadableString(&rnd, rnd.Uniform(8));
      source_strings.push_back(key);
    }

@@ -361,7 +360,7 @@ TEST_P(ComparatorDBTest, Uint64Comparator) {

  for (int rnd_seed = 301; rnd_seed < 316; rnd_seed++) {
    Options* opt = GetOptions();
-    opt->comparator = kTestComparator;
+    opt->comparator = comparator;
    DestroyAndReopen();
    Random rnd(rnd_seed);
    Random64 rnd64(rnd_seed);
@@ -385,7 +384,7 @@ TEST_P(ComparatorDBTest, DoubleComparator) {

  for (int rnd_seed = 301; rnd_seed < 316; rnd_seed++) {
    Options* opt = GetOptions();
-    opt->comparator = kTestComparator;
+    opt->comparator = comparator;
    DestroyAndReopen();
    Random rnd(rnd_seed);

@@ -410,7 +409,7 @@ TEST_P(ComparatorDBTest, HashComparator) {

  for (int rnd_seed = 301; rnd_seed < 316; rnd_seed++) {
    Options* opt = GetOptions();
-    opt->comparator = kTestComparator;
+    opt->comparator = comparator;
    DestroyAndReopen();
    Random rnd(rnd_seed);

@@ -429,7 +428,7 @@ TEST_P(ComparatorDBTest, TwoStrComparator) {

  for (int rnd_seed = 301; rnd_seed < 316; rnd_seed++) {
    Options* opt = GetOptions();
-    opt->comparator = kTestComparator;
+    opt->comparator = comparator;
    DestroyAndReopen();
    Random rnd(rnd_seed);

@@ -653,7 +652,7 @@ TEST_P(ComparatorDBTest, SeparatorSuccessorRandomizeTest) {
  }
 }

-}  // namespace ROCKSDB_NAMESPACE
+}  // namespace rocksdb

 int main(int argc, char** argv) {
  ::testing::InitGoogleTest(&argc, argv);
@@ -11,10 +11,10 @@
 #include "db/db_impl/db_impl.h"
 #include "util/cast_util.h"

-namespace ROCKSDB_NAMESPACE {
+namespace rocksdb {

 void CancelAllBackgroundWork(DB* db, bool wait) {
-  (static_cast_with_check<DBImpl>(db->GetRootDB()))
+  (static_cast_with_check<DBImpl, DB>(db->GetRootDB()))
      ->CancelAllBackgroundWork(wait);
 }

@@ -28,7 +28,7 @@ Status DeleteFilesInRange(DB* db, ColumnFamilyHandle* column_family,
 Status DeleteFilesInRanges(DB* db, ColumnFamilyHandle* column_family,
                           const RangePtr* ranges, size_t n,
                           bool include_end) {
-  return (static_cast_with_check<DBImpl>(db->GetRootDB()))
+  return (static_cast_with_check<DBImpl, DB>(db->GetRootDB()))
      ->DeleteFilesInRanges(column_family, ranges, n, include_end);
 }

@@ -61,8 +61,7 @@ Status VerifySstFileChecksum(const Options& options,
  s = ioptions.table_factory->NewTableReader(
      TableReaderOptions(ioptions, options.prefix_extractor.get(), env_options,
                         internal_comparator, false /* skip_filters */,
-                         !kImmortal, false /* force_direct_prefetch */,
-                         -1 /* level */),
+                         !kImmortal, -1 /* level */),
      std::move(file_reader), file_size, &table_reader,
      false /* prefetch_index_and_filter_in_cache */);
  if (!s.ok()) {
@@ -73,6 +72,6 @@ Status VerifySstFileChecksum(const Options& options,
  return s;
 }

-}  // namespace ROCKSDB_NAMESPACE
+}  // namespace rocksdb

 #endif  // ROCKSDB_LITE
@@ -9,13 +9,13 @@

 #ifndef ROCKSDB_LITE

+#include "rocksdb/db.h"
+
 #include <errno.h>
 #include <fcntl.h>
 #include <sys/stat.h>
 #include <sys/types.h>
-
 #include <cinttypes>
-
 #include "db/db_impl/db_impl.h"
 #include "db/db_test_util.h"
 #include "db/log_format.h"
@@ -24,19 +24,16 @@
 #include "file/filename.h"
 #include "rocksdb/cache.h"
 #include "rocksdb/convenience.h"
-#include "rocksdb/db.h"
 #include "rocksdb/env.h"
 #include "rocksdb/table.h"
 #include "rocksdb/write_batch.h"
 #include "table/block_based/block_based_table_builder.h"
 #include "table/meta_blocks.h"
-#include "table/mock_table.h"
 #include "test_util/testharness.h"
 #include "test_util/testutil.h"
-#include "util/random.h"
 #include "util/string_util.h"

-namespace ROCKSDB_NAMESPACE {
+namespace rocksdb {

 static const int kValueSize = 1000;

@@ -56,8 +53,7 @@ class CorruptionTest : public testing::Test {
    options_.wal_recovery_mode = WALRecoveryMode::kTolerateCorruptedTailRecords;
    options_.env = &env_;
    dbname_ = test::PerThreadDBPath("corruption_test");
-    Status s = DestroyDB(dbname_, options_);
-    EXPECT_OK(s);
+    DestroyDB(dbname_, options_);

    db_ = nullptr;
    options_.create_if_missing = true;
@@ -70,7 +66,6 @@ class CorruptionTest : public testing::Test {

  ~CorruptionTest() override {
    delete db_;
-    db_ = nullptr;
    DestroyDB(dbname_, Options());
  }

@@ -103,27 +98,25 @@ class CorruptionTest : public testing::Test {
  void RepairDB() {
    delete db_;
    db_ = nullptr;
-    ASSERT_OK(::ROCKSDB_NAMESPACE::RepairDB(dbname_, options_));
+    ASSERT_OK(::rocksdb::RepairDB(dbname_, options_));
  }

-  void Build(int n, int start, int flush_every) {
+  void Build(int n, int flush_every = 0) {
    std::string key_space, value_space;
    WriteBatch batch;
    for (int i = 0; i < n; i++) {
      if (flush_every != 0 && i != 0 && i % flush_every == 0) {
-        DBImpl* dbi = static_cast_with_check<DBImpl>(db_);
-        ASSERT_OK(dbi->TEST_FlushMemTable());
+        DBImpl* dbi = reinterpret_cast<DBImpl*>(db_);
+        dbi->TEST_FlushMemTable();
      }
      //if ((i % 100) == 0) fprintf(stderr, "@ %d of %d\n", i, n);
-      Slice key = Key(i + start, &key_space);
+      Slice key = Key(i, &key_space);
      batch.Clear();
-      ASSERT_OK(batch.Put(key, Value(i + start, &value_space)));
+      batch.Put(key, Value(i, &value_space));
      ASSERT_OK(db_->Write(WriteOptions(), &batch));
    }
  }

-  void Build(int n, int flush_every = 0) { Build(n, 0, flush_every); }
-
  void Check(int min_expected, int max_expected) {
    uint64_t next_expected = 0;
    uint64_t missed = 0;
@@ -138,7 +131,6 @@ class CorruptionTest : public testing::Test {
    // occurred.
    Iterator* iter = db_->NewIterator(ReadOptions(false, true));
    for (iter->SeekToFirst(); iter->Valid(); iter->Next()) {
-      ASSERT_OK(iter->status());
      uint64_t key;
      Slice in(iter->key());
      if (!ConsumeDecimalNumber(&in, &key) ||
@@ -155,7 +147,6 @@ class CorruptionTest : public testing::Test {
        correct++;
      }
    }
-    iter->status().PermitUncheckedError();
    delete iter;

    fprintf(stderr,
@@ -166,6 +157,43 @@ class CorruptionTest : public testing::Test {
    ASSERT_GE(max_expected, correct);
  }

+  void CorruptFile(const std::string& fname, int offset, int bytes_to_corrupt) {
+    struct stat sbuf;
+    if (stat(fname.c_str(), &sbuf) != 0) {
+      const char* msg = strerror(errno);
+      FAIL() << fname << ": " << msg;
+    }
+
+    if (offset < 0) {
+      // Relative to end of file; make it absolute
+      if (-offset > sbuf.st_size) {
+        offset = 0;
+      } else {
+        offset = static_cast<int>(sbuf.st_size + offset);
+      }
+    }
+    if (offset > sbuf.st_size) {
+      offset = static_cast<int>(sbuf.st_size);
+    }
+    if (offset + bytes_to_corrupt > sbuf.st_size) {
+      bytes_to_corrupt = static_cast<int>(sbuf.st_size - offset);
+    }
+
+    // Do it
+    std::string contents;
+    Status s = ReadFileToString(Env::Default(), fname, &contents);
+    ASSERT_TRUE(s.ok()) << s.ToString();
+    for (int i = 0; i < bytes_to_corrupt; i++) {
+      contents[i + offset] ^= 0x80;
+    }
+    s = WriteStringToFile(Env::Default(), contents, fname);
+    ASSERT_TRUE(s.ok()) << s.ToString();
+    Options options;
+    EnvOptions env_options;
+    options.file_system.reset(new LegacyFileSystemWrapper(options.env));
+    ASSERT_NOK(VerifySstFileChecksum(options, env_options, fname));
+  }
+
  void Corrupt(FileType filetype, int offset, int bytes_to_corrupt) {
    // Pick file to corrupt
    std::vector<std::string> filenames;
@@ -184,7 +212,7 @@ class CorruptionTest : public testing::Test {
    }
    ASSERT_TRUE(!fname.empty()) << filetype;

-    test::CorruptFile(fname, offset, bytes_to_corrupt);
+    CorruptFile(fname, offset, bytes_to_corrupt);
  }

  // corrupts exactly one file at level `level`. if no file found at level,
@@ -194,7 +222,7 @@ class CorruptionTest : public testing::Test {
    db_->GetLiveFilesMetaData(&metadata);
    for (const auto& m : metadata) {
      if (m.level == level) {
-        test::CorruptFile(dbname_ + "/" + m.name, offset, bytes_to_corrupt);
+        CorruptFile(dbname_ + "/" + m.name, offset, bytes_to_corrupt);
        return;
      }
    }
@@ -228,11 +256,11 @@ class CorruptionTest : public testing::Test {
      // preserves the implementation that was in place when all of the
      // magic values in this file were picked.
      *storage = std::string(kValueSize, ' ');
+      return Slice(*storage);
    } else {
      Random r(k);
-      *storage = r.RandomString(kValueSize);
+      return test::RandomString(&r, kValueSize, storage);
    }
-    return Slice(*storage);
  }
 };

@@ -275,7 +303,7 @@ TEST_F(CorruptionTest, NewFileErrorDuringWrite) {
  bool failed = false;
  for (int i = 0; i < num; i++) {
    WriteBatch batch;
-    ASSERT_OK(batch.Put("a", Value(100, &value_storage)));
+    batch.Put("a", Value(100, &value_storage));
    s = db_->Write(WriteOptions(), &batch);
    if (!s.ok()) {
      failed = true;
@@ -290,10 +318,10 @@ TEST_F(CorruptionTest, NewFileErrorDuringWrite) {

 TEST_F(CorruptionTest, TableFile) {
  Build(100);
-  DBImpl* dbi = static_cast_with_check<DBImpl>(db_);
-  ASSERT_OK(dbi->TEST_FlushMemTable());
-  ASSERT_OK(dbi->TEST_CompactRange(0, nullptr, nullptr));
-  ASSERT_OK(dbi->TEST_CompactRange(1, nullptr, nullptr));
+  DBImpl* dbi = reinterpret_cast<DBImpl*>(db_);
+  dbi->TEST_FlushMemTable();
+  dbi->TEST_CompactRange(0, nullptr, nullptr);
+  dbi->TEST_CompactRange(1, nullptr, nullptr);

  Corrupt(kTableFile, 100, 1);
  Check(99, 99);
@@ -313,10 +341,10 @@ TEST_F(CorruptionTest, VerifyChecksumReadahead) {
  Reopen(&options);

  Build(10000);
-  DBImpl* dbi = static_cast_with_check<DBImpl>(db_);
-  ASSERT_OK(dbi->TEST_FlushMemTable());
-  ASSERT_OK(dbi->TEST_CompactRange(0, nullptr, nullptr));
-  ASSERT_OK(dbi->TEST_CompactRange(1, nullptr, nullptr));
+  DBImpl* dbi = reinterpret_cast<DBImpl*>(db_);
+  dbi->TEST_FlushMemTable();
+  dbi->TEST_CompactRange(0, nullptr, nullptr);
+  dbi->TEST_CompactRange(1, nullptr, nullptr);

  senv.count_random_reads_ = true;
  senv.random_read_counter_.Reset();
@@ -360,21 +388,17 @@ TEST_F(CorruptionTest, TableFileIndexData) {
  Reopen(&options);
  // build 2 tables, flush at 5000
  Build(10000, 5000);
-  DBImpl* dbi = static_cast_with_check<DBImpl>(db_);
-  ASSERT_OK(dbi->TEST_FlushMemTable());
+  DBImpl* dbi = reinterpret_cast<DBImpl*>(db_);
+  dbi->TEST_FlushMemTable();

  // corrupt an index block of an entire file
  Corrupt(kTableFile, -2000, 500);
-  options.paranoid_checks = false;
-  Reopen(&options);
-  dbi = static_cast_with_check<DBImpl>(db_);
+  Reopen();
+  dbi = reinterpret_cast<DBImpl*>(db_);
  // one full file may be readable, since only one was corrupted
  // the other file should be fully non-readable, since index was corrupted
  Check(0, 5000);
  ASSERT_NOK(dbi->VerifyChecksum());
-
-  // In paranoid mode, the db cannot be opened due to the corrupted file.
-  ASSERT_TRUE(TryReopen().IsCorruption());
 }

 TEST_F(CorruptionTest, MissingDescriptor) {
@@ -407,9 +431,9 @@ TEST_F(CorruptionTest, SequenceNumberRecovery) {

 TEST_F(CorruptionTest, CorruptedDescriptor) {
  ASSERT_OK(db_->Put(WriteOptions(), "foo", "hello"));
-  DBImpl* dbi = static_cast_with_check<DBImpl>(db_);
-  ASSERT_OK(dbi->TEST_FlushMemTable());
-  ASSERT_OK(dbi->TEST_CompactRange(0, nullptr, nullptr));
+  DBImpl* dbi = reinterpret_cast<DBImpl*>(db_);
+  dbi->TEST_FlushMemTable();
+  dbi->TEST_CompactRange(0, nullptr, nullptr);

  Corrupt(kDescriptorFile, 0, 1000);
  Status s = TryReopen();
@@ -426,10 +450,10 @@ TEST_F(CorruptionTest, CompactionInputError) {
  Options options;
  Reopen(&options);
  Build(10);
-  DBImpl* dbi = static_cast_with_check<DBImpl>(db_);
-  ASSERT_OK(dbi->TEST_FlushMemTable());
-  ASSERT_OK(dbi->TEST_CompactRange(0, nullptr, nullptr));
-  ASSERT_OK(dbi->TEST_CompactRange(1, nullptr, nullptr));
+  DBImpl* dbi = reinterpret_cast<DBImpl*>(db_);
+  dbi->TEST_FlushMemTable();
+  dbi->TEST_CompactRange(0, nullptr, nullptr);
+  dbi->TEST_CompactRange(1, nullptr, nullptr);
  ASSERT_EQ(1, Property("rocksdb.num-files-at-level2"));

  Corrupt(kTableFile, 100, 1);
@@ -448,25 +472,25 @@ TEST_F(CorruptionTest, CompactionInputErrorParanoid) {
  options.write_buffer_size = 131072;
  options.max_write_buffer_number = 2;
  Reopen(&options);
-  DBImpl* dbi = static_cast_with_check<DBImpl>(db_);
+  DBImpl* dbi = reinterpret_cast<DBImpl*>(db_);

  // Fill levels >= 1
  for (int level = 1; level < dbi->NumberLevels(); level++) {
-    ASSERT_OK(dbi->Put(WriteOptions(), "", "begin"));
-    ASSERT_OK(dbi->Put(WriteOptions(), "~", "end"));
-    ASSERT_OK(dbi->TEST_FlushMemTable());
+    dbi->Put(WriteOptions(), "", "begin");
+    dbi->Put(WriteOptions(), "~", "end");
+    dbi->TEST_FlushMemTable();
    for (int comp_level = 0; comp_level < dbi->NumberLevels() - level;
         ++comp_level) {
-      ASSERT_OK(dbi->TEST_CompactRange(comp_level, nullptr, nullptr));
+      dbi->TEST_CompactRange(comp_level, nullptr, nullptr);
    }
  }

  Reopen(&options);

-  dbi = static_cast_with_check<DBImpl>(db_);
+  dbi = reinterpret_cast<DBImpl*>(db_);
  Build(10);
-  ASSERT_OK(dbi->TEST_FlushMemTable());
-  ASSERT_OK(dbi->TEST_WaitForCompact());
+  dbi->TEST_FlushMemTable();
+  dbi->TEST_WaitForCompact();
  ASSERT_EQ(1, Property("rocksdb.num-files-at-level0"));

  CorruptTableFileAtLevel(0, 100, 1);
@@ -490,8 +514,8 @@ TEST_F(CorruptionTest, CompactionInputErrorParanoid) {

 TEST_F(CorruptionTest, UnrelatedKeys) {
  Build(10);
-  DBImpl* dbi = static_cast_with_check<DBImpl>(db_);
-  ASSERT_OK(dbi->TEST_FlushMemTable());
+  DBImpl* dbi = reinterpret_cast<DBImpl*>(db_);
+  dbi->TEST_FlushMemTable();
  Corrupt(kTableFile, 100, 1);
  ASSERT_NOK(dbi->VerifyChecksum());

@@ -500,7 +524,7 @@ TEST_F(CorruptionTest, UnrelatedKeys) {
  std::string v;
  ASSERT_OK(db_->Get(ReadOptions(), Key(1000, &tmp1), &v));
  ASSERT_EQ(Value(1000, &tmp2).ToString(), v);
-  ASSERT_OK(dbi->TEST_FlushMemTable());
+  dbi->TEST_FlushMemTable();
  ASSERT_OK(db_->Get(ReadOptions(), Key(1000, &tmp1), &v));
  ASSERT_EQ(Value(1000, &tmp2).ToString(), v);
 }
@@ -529,8 +553,14 @@ TEST_F(CorruptionTest, RangeDeletionCorrupted) {
      ImmutableCFOptions(options_), kRangeDelBlock, &range_del_handle));

  ASSERT_OK(TryReopen());
-  test::CorruptFile(filename, static_cast<int>(range_del_handle.offset()), 1);
-  ASSERT_TRUE(TryReopen().IsCorruption());
+  CorruptFile(filename, static_cast<int>(range_del_handle.offset()), 1);
+  // The test case does not fail on TryReopen because failure to preload table
+  // handlers is not considered critical.
+  ASSERT_OK(TryReopen());
+  std::string val;
+  // However, it does fail on any read involving that file since that file
+  // cannot be opened with a corrupt range deletion meta-block.
+  ASSERT_TRUE(db_->Get(ReadOptions(), "a", &val).IsCorruption());
 }

 TEST_F(CorruptionTest, FileSystemStateCorrupted) {
@@ -541,7 +571,7 @@ TEST_F(CorruptionTest, FileSystemStateCorrupted) {
    Reopen(&options);
    Build(10);
    ASSERT_OK(db_->Flush(FlushOptions()));
-    DBImpl* dbi = static_cast_with_check<DBImpl>(db_);
+    DBImpl* dbi = reinterpret_cast<DBImpl*>(db_);
    std::vector<LiveFileMetaData> metadata;
    dbi->GetLiveFilesMetaData(&metadata);
    ASSERT_GT(metadata.size(), size_t(0));
@@ -553,278 +583,20 @@ TEST_F(CorruptionTest, FileSystemStateCorrupted) {
    if (iter == 0) {  // corrupt file size
      std::unique_ptr<WritableFile> file;
      env_.NewWritableFile(filename, &file, EnvOptions());
-      ASSERT_OK(file->Append(Slice("corrupted sst")));
+      file->Append(Slice("corrupted sst"));
      file.reset();
-      Status x = TryReopen(&options);
-      ASSERT_TRUE(x.IsCorruption());
    } else {  // delete the file
-      ASSERT_OK(env_.DeleteFile(filename));
-      Status x = TryReopen(&options);
-      ASSERT_TRUE(x.IsPathNotFound());
+      env_.DeleteFile(filename);
    }

-    ASSERT_OK(DestroyDB(dbname_, options_));
+    Status x = TryReopen(&options);
+    ASSERT_TRUE(x.IsCorruption());
+    DestroyDB(dbname_, options_);
+    Reopen(&options);
  }
 }

-static const auto& corruption_modes = {
-    mock::MockTableFactory::kCorruptNone, mock::MockTableFactory::kCorruptKey,
-    mock::MockTableFactory::kCorruptValue,
-    mock::MockTableFactory::kCorruptReorderKey};
-
-TEST_F(CorruptionTest, ParanoidFileChecksOnFlush) {
-  Options options;
-  options.check_flush_compaction_key_order = false;
-  options.paranoid_file_checks = true;
-  options.create_if_missing = true;
-  Status s;
-  for (const auto& mode : corruption_modes) {
-    delete db_;
-    db_ = nullptr;
-    s = DestroyDB(dbname_, options);
-    ASSERT_OK(s);
-    std::shared_ptr<mock::MockTableFactory> mock =
-        std::make_shared<mock::MockTableFactory>();
-    options.table_factory = mock;
-    mock->SetCorruptionMode(mode);
-    ASSERT_OK(DB::Open(options, dbname_, &db_));
-    assert(db_ != nullptr);
-    Build(10);
-    s = db_->Flush(FlushOptions());
-    if (mode == mock::MockTableFactory::kCorruptNone) {
-      ASSERT_OK(s);
-    } else {
-      ASSERT_NOK(s);
-    }
-  }
-}
-
-TEST_F(CorruptionTest, ParanoidFileChecksOnCompact) {
-  Options options;
-  options.paranoid_file_checks = true;
-  options.create_if_missing = true;
-  options.check_flush_compaction_key_order = false;
-  Status s;
-  for (const auto& mode : corruption_modes) {
-    delete db_;
-    db_ = nullptr;
-    s = DestroyDB(dbname_, options);
-    std::shared_ptr<mock::MockTableFactory> mock =
-        std::make_shared<mock::MockTableFactory>();
-    options.table_factory = mock;
-    ASSERT_OK(DB::Open(options, dbname_, &db_));
-    assert(db_ != nullptr);
-    Build(100, 2);
-    // ASSERT_OK(db_->Flush(FlushOptions()));
-    DBImpl* dbi = static_cast_with_check<DBImpl>(db_);
-    ASSERT_OK(dbi->TEST_FlushMemTable());
-    mock->SetCorruptionMode(mode);
-    s = dbi->TEST_CompactRange(0, nullptr, nullptr, nullptr, true);
-    if (mode == mock::MockTableFactory::kCorruptNone) {
-      ASSERT_OK(s);
-    } else {
-      ASSERT_NOK(s);
-    }
-  }
-}
-
-TEST_F(CorruptionTest, ParanoidFileChecksWithDeleteRangeFirst) {
-  Options options;
-  options.check_flush_compaction_key_order = false;
-  options.paranoid_file_checks = true;
-  options.create_if_missing = true;
-  for (bool do_flush : {true, false}) {
-    delete db_;
-    db_ = nullptr;
-    ASSERT_OK(DestroyDB(dbname_, options));
-    ASSERT_OK(DB::Open(options, dbname_, &db_));
-    std::string start, end;
-    assert(db_ != nullptr);
-    ASSERT_OK(db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(),
-                               Key(3, &start), Key(7, &end)));
-    auto snap = db_->GetSnapshot();
-    ASSERT_NE(snap, nullptr);
-    ASSERT_OK(db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(),
-                               Key(8, &start), Key(9, &end)));
-    ASSERT_OK(db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(),
-                               Key(2, &start), Key(5, &end)));
-    Build(10);
-    if (do_flush) {
-      ASSERT_OK(db_->Flush(FlushOptions()));
-    } else {
-      DBImpl* dbi = static_cast_with_check<DBImpl>(db_);
-      ASSERT_OK(dbi->TEST_FlushMemTable());
-      ASSERT_OK(dbi->TEST_CompactRange(0, nullptr, nullptr, nullptr, true));
-    }
-    db_->ReleaseSnapshot(snap);
-  }
-}
-
-TEST_F(CorruptionTest, ParanoidFileChecksWithDeleteRange) {
-  Options options;
-  options.check_flush_compaction_key_order = false;
-  options.paranoid_file_checks = true;
-  options.create_if_missing = true;
-  for (bool do_flush : {true, false}) {
-    delete db_;
-    db_ = nullptr;
-    ASSERT_OK(DestroyDB(dbname_, options));
-    ASSERT_OK(DB::Open(options, dbname_, &db_));
-    assert(db_ != nullptr);
-    Build(10, 0, 0);
-    std::string start, end;
-    ASSERT_OK(db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(),
-                               Key(5, &start), Key(15, &end)));
-    auto snap = db_->GetSnapshot();
-    ASSERT_NE(snap, nullptr);
-    ASSERT_OK(db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(),
-                               Key(8, &start), Key(9, &end)));
-    ASSERT_OK(db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(),
-                               Key(12, &start), Key(17, &end)));
-    ASSERT_OK(db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(),
-                               Key(2, &start), Key(4, &end)));
-    Build(10, 10, 0);
-    if (do_flush) {
-      ASSERT_OK(db_->Flush(FlushOptions()));
-    } else {
-      DBImpl* dbi = static_cast_with_check<DBImpl>(db_);
-      ASSERT_OK(dbi->TEST_FlushMemTable());
-      ASSERT_OK(dbi->TEST_CompactRange(0, nullptr, nullptr, nullptr, true));
-    }
-    db_->ReleaseSnapshot(snap);
-  }
-}
-
-TEST_F(CorruptionTest, ParanoidFileChecksWithDeleteRangeLast) {
-  Options options;
-  options.check_flush_compaction_key_order = false;
-  options.paranoid_file_checks = true;
-  options.create_if_missing = true;
-  for (bool do_flush : {true, false}) {
-    delete db_;
-    db_ = nullptr;
-    ASSERT_OK(DestroyDB(dbname_, options));
-    ASSERT_OK(DB::Open(options, dbname_, &db_));
-    assert(db_ != nullptr);
-    std::string start, end;
-    Build(10);
-    ASSERT_OK(db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(),
-                               Key(3, &start), Key(7, &end)));
-    auto snap = db_->GetSnapshot();
-    ASSERT_NE(snap, nullptr);
-    ASSERT_OK(db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(),
-                               Key(6, &start), Key(8, &end)));
-    ASSERT_OK(db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(),
-                               Key(2, &start), Key(5, &end)));
-    if (do_flush) {
-      ASSERT_OK(db_->Flush(FlushOptions()));
-    } else {
-      DBImpl* dbi = static_cast_with_check<DBImpl>(db_);
-      ASSERT_OK(dbi->TEST_FlushMemTable());
-      ASSERT_OK(dbi->TEST_CompactRange(0, nullptr, nullptr, nullptr, true));
-    }
-    db_->ReleaseSnapshot(snap);
-  }
-}
-
-TEST_F(CorruptionTest, LogCorruptionErrorsInCompactionIterator) {
-  Options options;
-  options.create_if_missing = true;
-  options.allow_data_in_errors = true;
-  auto mode = mock::MockTableFactory::kCorruptKey;
-  delete db_;
-  db_ = nullptr;
-  ASSERT_OK(DestroyDB(dbname_, options));
-
-  std::shared_ptr<mock::MockTableFactory> mock =
-      std::make_shared<mock::MockTableFactory>();
-  mock->SetCorruptionMode(mode);
-  options.table_factory = mock;
-
-  ASSERT_OK(DB::Open(options, dbname_, &db_));
-  assert(db_ != nullptr);
-  Build(100, 2);
-
-  DBImpl* dbi = static_cast_with_check<DBImpl>(db_);
-  ASSERT_OK(dbi->TEST_FlushMemTable());
-  Status s = dbi->TEST_CompactRange(0, nullptr, nullptr, nullptr, true);
-  ASSERT_NOK(s);
-  ASSERT_TRUE(s.IsCorruption());
-}
-
-TEST_F(CorruptionTest, CompactionKeyOrderCheck) {
-  Options options;
-  options.paranoid_file_checks = false;
-  options.create_if_missing = true;
-  options.check_flush_compaction_key_order = false;
-  delete db_;
-  db_ = nullptr;
-  ASSERT_OK(DestroyDB(dbname_, options));
-  std::shared_ptr<mock::MockTableFactory> mock =
-      std::make_shared<mock::MockTableFactory>();
-  options.table_factory = mock;
-  ASSERT_OK(DB::Open(options, dbname_, &db_));
-  assert(db_ != nullptr);
-  mock->SetCorruptionMode(mock::MockTableFactory::kCorruptReorderKey);
-  Build(100, 2);
-  DBImpl* dbi = static_cast_with_check<DBImpl>(db_);
-  ASSERT_OK(dbi->TEST_FlushMemTable());
-
-  mock->SetCorruptionMode(mock::MockTableFactory::kCorruptNone);
-  ASSERT_OK(db_->SetOptions({{"check_flush_compaction_key_order", "true"}}));
-  ASSERT_NOK(dbi->TEST_CompactRange(0, nullptr, nullptr, nullptr, true));
-}
-
-TEST_F(CorruptionTest, FlushKeyOrderCheck) {
-  Options options;
-  options.paranoid_file_checks = false;
-  options.create_if_missing = true;
-  ASSERT_OK(db_->SetOptions({{"check_flush_compaction_key_order", "true"}}));
-
-  ASSERT_OK(db_->Put(WriteOptions(), "foo1", "v1"));
-  ASSERT_OK(db_->Put(WriteOptions(), "foo2", "v1"));
-  ASSERT_OK(db_->Put(WriteOptions(), "foo3", "v1"));
-  ASSERT_OK(db_->Put(WriteOptions(), "foo4", "v1"));
-
-  int cnt = 0;
-  // Generate some out of order keys from the memtable
-  SyncPoint::GetInstance()->SetCallBack(
-      "MemTableIterator::Next:0", [&](void* arg) {
-        MemTableRep::Iterator* mem_iter =
-            static_cast<MemTableRep::Iterator*>(arg);
-        if (++cnt == 3) {
-          mem_iter->Prev();
-          mem_iter->Prev();
-        }
-      });
-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing();
-  Status s = static_cast_with_check<DBImpl>(db_)->TEST_FlushMemTable();
-  ASSERT_NOK(s);
-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->DisableProcessing();
-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->ClearAllCallBacks();
-}
-
-TEST_F(CorruptionTest, DisableKeyOrderCheck) {
-  Options options;
-  ASSERT_OK(db_->SetOptions({{"check_flush_compaction_key_order", "false"}}));
-  DBImpl* dbi = static_cast_with_check<DBImpl>(db_);
-
-  SyncPoint::GetInstance()->SetCallBack(
-      "OutputValidator::Add:order_check",
-      [&](void* /*arg*/) { ASSERT_TRUE(false); });
-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing();
-  ASSERT_OK(db_->Put(WriteOptions(), "foo1", "v1"));
-  ASSERT_OK(db_->Put(WriteOptions(), "foo3", "v1"));
-  ASSERT_OK(dbi->TEST_FlushMemTable());
-  ASSERT_OK(db_->Put(WriteOptions(), "foo2", "v1"));
-  ASSERT_OK(db_->Put(WriteOptions(), "foo4", "v1"));
-  ASSERT_OK(dbi->TEST_FlushMemTable());
-  ASSERT_OK(dbi->TEST_CompactRange(0, nullptr, nullptr, nullptr, true));
-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->DisableProcessing();
-  ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->ClearAllCallBacks();
-}
-
-}  // namespace ROCKSDB_NAMESPACE
+}  // namespace rocksdb

 int main(int argc, char** argv) {
  ::testing::InitGoogleTest(&argc, argv);
--- a/Show More
+++ b/Show More