4bdf06e78f
Summary: In the test, there can be a dead lock between background flush thread and foreground main thread as following: * background flush thread: - holding db mutex, while - waiting on "DBImpl::FlushMemTableToOutputFile:BeforeInstallSV" sync point. * foreground thread: - waiting for db mutex to write "key2" Fixing by let background flush thread wait without holding db mutex. Closes https://github.com/facebook/rocksdb/pull/3436 Differential Revision: D6841334 Pulled By: yiwu-arbug fbshipit-source-id: b020768ac94e166e40953c5d09e505515a5f244d
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/