30f74fa964
Summary: CompactionJobStatsTest.UniversalCompactionTest assumes compaction kicks in when the number of L0 files equals to the compaction trigger. However, in some case, the compaction might not catch up the write speed and thus compaction might not kick in until the number of L0 files is GREATER than the compaction trigger. This patch tries to fix this corner case by making the Put thread wait for a potential compaction whenever it flushes. Test Plan: ./compaction_job_stats_test Reviewers: sdong, anthony, IslamAbdelRahman, igor Subscribers: dhruba Differential Revision: https://reviews.facebook.net/D47589
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/