bd9f1d2d0f
Summary: If RocksDB is configured with a positive max_allowed_space (via sst file manager), then the sst file manager should use this value instead of total free disk space to determine whether to clear the background error of space limit reached. In DBSSTTest.DBWithMaxSpaceAllowed, we configure a low space limit that is very likely lower than the free disk space of the test machine. Therefore, once the test db encounters a Status::SpaceLimit, error handler will call into sst file manager to start error recovery which may clear the bg error since disk free space is larger than reserved_disk_buffer_. Pull Request resolved: https://github.com/facebook/rocksdb/pull/5334 Differential Revision: D15501622 Pulled By: riversand963 fbshipit-source-id: 58035efc450b062d6b28c78c322005ec3705fb47
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.