ec346da98c
Summary: Previously, even when `bottommost_compression_opts`'s `enabled` flag was set, it only took effect when `bottommost_compression` was also set to something other than `kDisableCompressionOption`. This wasn't documented and, if we kept the old behavior, it'd make things complicated like the migration instructions in https://github.com/facebook/rocksdb/issues/7619. We can simplify the API by making `bottommost_compression_opts` always take effect when its `enabled` flag is set. Fixes https://github.com/facebook/rocksdb/issues/7631. Pull Request resolved: https://github.com/facebook/rocksdb/pull/7633 Reviewed By: ltamasi Differential Revision: D24710358 Pulled By: ajkr fbshipit-source-id: bbbdf9c1b53c63a4239d902cc3f5a11da1874647
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/master/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.
Design discussions are conducted in https://www.facebook.com/groups/rocksdb.dev/ and https://rocksdb.slack.com/
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.