Hui Xiao
5b981b64f4
Summary: **Context/Summary:** Continued from https://github.com/facebook/rocksdb/pull/12127, we can randomly reduce the # max key to coerce more operations on the same key. My experimental run shows it surfaced more issue than just https://github.com/facebook/rocksdb/pull/12127. I also randomly reduce the related parameters, write buffer size and target file base, to adapt to randomly lower number of # max key. This creates 4 situations of testing, 3 of which are new: 1. **high** # max key with **high** write buffer size and target file base (existing) 2. **high** # max key with **low** write buffer size and target file base (new, will go through some rehearsal testing to ensure we don't run out of space with many files) 3. **low** # max key with **high** write buffer size and target file base (new, keys will stay in memory longer) 4. **low** # max key with **low** write buffer size and target file base (new, experimental runs show it surfaced even more issues) Pull Request resolved: https://github.com/facebook/rocksdb/pull/12148 Test Plan: - [Ongoing] Rehearsal stress test - Monitor production stress test Reviewed By: jaykorean Differential Revision: D52174980 Pulled By: hx235 fbshipit-source-id: bd5e11280826819ca9314c69bbbf05d481c6d105
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.