774b80e99e
Summary: This patch fix a race condition in persisting options which will cause a crash when: * Thread A obtain cf options and start to persist options based on that cf options. * Thread B kicks in and finish DropColumnFamily and delete cf_handle. * Thread A wakes up and tries to finish the persisting options and crashes. Test Plan: Add a test in column_family_test that can reproduce the crash Reviewers: anthony, IslamAbdelRahman, rven, kradhakrishnan, sdong Reviewed By: sdong Subscribers: leveldb, dhruba Differential Revision: https://reviews.facebook.net/D51717
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/