a057bb2a8e
Summary: Improve ThreadStatusSingleCompaction in two ways: 1. Use SYNC_POINT to ensure compaction won't happen before the test finishes its "Put Phase" instead of using sleep. 2. In Put Phase, it continues until we have sufficient number of L0 files. Note that during the put phase, there won't be any compaction that consumes L0 files because of item 1. Test Plan: ./db_test --gtest_filter="*ThreadStatusSingleCompaction*" Reviewers: sdong, igor, rven Subscribers: dhruba, leveldb Differential Revision: https://reviews.facebook.net/D35727
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 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 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/