1c78e4b235
Summary: This commit makes https://github.com/facebook/rocksdb/issues/6262's code change tidier and easier to understand by: 1. Wrapping parallel compression initialization and termination into common methods; 2. Wrapping BlockRep initialization, push/pop into common methods; 3. Wrapping file size estimation into common methods; 4. Fixing function declarations that use non-const reference; 5. Fixing some uninitialized variables; 6. Fixing first_block data race; 7. Making BlockRep::status check in BlockBasedTableBuilder::Finish only present if ok(); 8. Making assert(ok()) in BlockBasedTableBuilder::CompressAndVerifyBlock only present in non-parallel compression mode. In parallel compression mode, compression will abort if status is not OK; 9. Eliminating potential data race caused by BlockBasedTableBuilder::GetStatus() and BlockBasedTableBuilder::GetIOStatus() by returning status copy instead of unprotected reference. Pull Request resolved: https://github.com/facebook/rocksdb/pull/6888 Reviewed By: ajkr Differential Revision: D21957110 Pulled By: jay-zhuang fbshipit-source-id: 3a29892f249209513f030349756cecd7736eae80
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.