Peter Dillinger
57036b68d9
Summary: as part of the effort to get rid of OLD_CompressData and OLD_UncompressData and the old implementations in compression.h. It's unfortunate the the existing blob file schema doesn't allow storing blobs uncompressed when the compressed version is larger, so we have to work around that. Note that use of GrowableBuffer in place of std::string is intended to avoid the potential performance overhead of zeroing out memory before overwriting it. Also includes some cleanup of includes Pull Request resolved: https://github.com/facebook/rocksdb/pull/14234 Test Plan: some unit test updates as needed. Crash test covers integrated blob support. I'm not too concerned about performance, as until a future schema change, this code is committing the grave performance error of storing compressed data larger than uncompressed. Reviewed By: mszeszko-meta, hx235 Differential Revision: D90544049 Pulled By: pdillinger fbshipit-source-id: 2f2ed16de63990b797cc06c8dad36b5869dac302
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.