039c45075e
Summary: Pull Request resolved: https://github.com/facebook/rocksdb/pull/15013 Add `--use_async_db_api` to db_stress and route direct `DB::Get` and value `DB::MultiGet` reads through the callback async APIs (`DB::GetAsync` / `DB::MultiGetAsync`) when coroutine support is available. The db_stress helpers block on callback completion and notify waiters while holding the callback lock, so existing stress-test control flow and callback lifetime are preserved. Builds without coroutine support silently keep the existing synchronous path. Centralize the dispatch in db_stress helpers and use them for workload, verification, secondary, and consistency/debug reads while leaving transaction and entity APIs on their existing paths. Randomize `use_async_db_api` in `tools/db_crashtest.py` one run in six. Reviewed By: jaykorean Differential Revision: D111132477 fbshipit-source-id: 2aeac267867d8501131161c9fdbaf1da2b0c51d5
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.