3e701a654f
Summary: Improve documentation for RocksEnv and its C++ resource. Specifically, the result of RocksEnv::Default() is a singleton, and the ownership of its c++ resource belongs to rocksdb c++. As a result, calling dispose() of the return value of RocksDB::Default() will be no-op. Test Plan: no code change. Reviewers: haobo, ankgup87 Reviewed By: ankgup87 Subscribers: leveldb Differential Revision: https://reviews.facebook.net/D18945
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 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 an 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 specially 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 doc/index.html and 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/