xingbowang
638354e766
Summary: - parse folly getdeps manifests with bare package entries so fallback prefetching actually runs - validate and remove bad cached/downloaded archives before trying fallback mirrors - download through temporary files and include libiberty in the GNU toolchain fallback set Context: Nightly test failed with dependency download failure in folly. ``` Assessing autoconf... Download with https://ftpmirror.gnu.org/gnu/autoconf/autoconf-2.69.tar.gz -> /tmp/fbcode_builder_getdeps-Z__wZrocksdbZrocksdbZthird-partyZfollyZbuildZfbcode_builder-root/downloads/autoconf-autoconf-2.69.tar.gz ... [Complete in 136.616022 seconds] raise Exception( Exception: https://ftpmirror.gnu.org/gnu/autoconf/autoconf-2.69.tar.gz: expected sha256 954bd69b391edc12d6a4a51a2dd1476543da5c6bbf05a95b59dc0dd6fd4c2969 but got e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855 make: *** [folly.mk:152: build_folly] Error 1 ##[error]Process completed with exit code 2. ``` Pull Request resolved: https://github.com/facebook/rocksdb/pull/14763 Test Plan: 1. Connection failure: - Forced first mirror to http://127.0.0.1:1/... - It logged connection refused. - It then tried https://mirrors.kernel.org/gnu/... - Download succeeded, size 1927468, SHA matched 954bd69b... 2. Empty file / bad hash: - Ran a local HTTP server returning a zero-byte autoconf-2.69.tar.gz - Script logged mismatch with actual=e3b0c442... size=0 - It removed the bad download and fell back to mirrors.kernel.org - Download succeeded with the expected SHA. 3. Existing zero-byte cache: - Seeded cache with an empty tarball. - Script removed invalid cache and downloaded a verified copy. Reviewed By: mszeszko-meta Differential Revision: D105859558 Pulled By: xingbowang fbshipit-source-id: ff1f20f87debad561610271ce99b8b8de2d4264f
RocksDB: A Persistent Key-Value Store for Flash and RAM Storage
RocksDB is developed and maintained by Facebook Database Engineering Team. It is built on earlier work on LevelDB by Sanjay Ghemawat (sanjay@google.com) and Jeff Dean (jeff@google.com)
This code is a library that forms the core building block for a fast key-value server, especially suited for storing data on flash drives. It has a Log-Structured-Merge-Database (LSM) design with flexible tradeoffs between Write-Amplification-Factor (WAF), Read-Amplification-Factor (RAF) and Space-Amplification-Factor (SAF). It has multi-threaded compactions, making it especially suitable for storing multiple terabytes of data in a single database.
Start with example usage here: https://github.com/facebook/rocksdb/tree/main/examples
See the github wiki for more explanation.
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.
Questions and discussions are welcome on the RocksDB Developers Public Facebook group and email list on Google Groups.
License
RocksDB is dual-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). You may select, at your option, one of the above-listed licenses.