76e951dbb1
Summary: This is a bug occaionally shows up in crash test, and this unit test is to reproduce it. The bug is following: 1. Database has multiple CFs. 2. Between one DB restart, the last log file is corrupted in the middle (not the tail) 3. During restart, DB crashes between flushes between two CFs. The DB will fail to be opened again with error "SST file is ahead of WALs" Pull Request resolved: https://github.com/facebook/rocksdb/pull/5851 Test Plan: Run the test itself. Differential Revision: D17614721 fbshipit-source-id: 1b0abce49b203a76a039e38e76bc940429975f20
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/
License
RocksDB is dual-licensed under both the GPLv2 (found in the COPYING file in the root directory) and Apache 2.0 License (found in the LICENSE.Apache file in the root directory). You may select, at your option, one of the above-listed licenses.