725833a424
Summary: We don't have any evidence of people using these to build custom filters. The recommended way of customizing filter handling is to defer to various built-in policies based on FilterBuildingContext (e.g. to build Monkey filtering policy). With old API, we have evidence of people modifying keys going into filter, but most cases of that can be handled with prefix_extractor. Having FilterBitsBuilder+Reader in the public API is an ogoing hinderance to code evolution (e.g. recent new Finish and MaybePostVerify), and so this change removes them from the public API for 7.0. Maybe they will come back in some form later, but lacking evidence of them providing value in the public API, we want to take back more freedom to evolve these. With this moved to internal-only, there is no rush to clean up the complex Finish signatures, or add memory allocator support, but doing so is much easier with them out of public API, for example to use CacheAllocationPtr without exposing it in the public API. Pull Request resolved: https://github.com/facebook/rocksdb/pull/9592 Test Plan: cosmetic changes only Reviewed By: hx235 Differential Revision: D34315470 Pulled By: pdillinger fbshipit-source-id: 03e03bb66a72c73df2c464d2dbbbae906dd8f99b
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.