4e258d3e63
Summary: (1) Skip check on specific key if restoring an old backup (small minority of cases) because it can fail in those cases. (2) Remove an old assertion about number of column families and number of keys passed in, which is broken by atomic flush (cf_consistency) test. Like other code (for better or worse) assume a single key and iterate over column families. (3) Apply mock_direct_io to NewSequentialFile so that db_stress backup works on /dev/shm. Also add more context to output in case of backup/restore db_stress failure. Also a minor fix to BackupEngine to report first failure status in creating new backup, and drop another clue about the potential source of a "Backup failed" status. Reverts "Disable backup/restore stress test (https://github.com/facebook/rocksdb/issues/7350)" Pull Request resolved: https://github.com/facebook/rocksdb/pull/7357 Test Plan: Using backup_one_in=10000, "USE_CLANG=1 make crash_test_with_atomic_flush" for 30+ minutes "USE_CLANG=1 make blackbox_crash_test" for 30+ minutes And with use_direct_reads with TEST_TMPDIR=/dev/shm/rocksdb Reviewed By: riversand963 Differential Revision: D23567244 Pulled By: pdillinger fbshipit-source-id: e77171c2e8394d173917e36898c02dead1c40b77
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 especially 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/ and https://rocksdb.slack.com/
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.