b27a1448b6
Summary: The error is assigning KeyContext::s to NotFound status in a table reader for a "not found in this table" case, which skips searching in later tables, like only a delete should. (The hash search index iterator is the only one that can return status NotFound even if Valid() == false.) This was detected by intermittent failure in MultiThreadedDBTest.MultiThreaded/5, a kHashSearch configuration. Pull Request resolved: https://github.com/facebook/rocksdb/pull/6821 Test Plan: modified existing unit test to reproduce problem Reviewed By: anand1976 Differential Revision: D21450469 Pulled By: pdillinger fbshipit-source-id: 7478003684d637dbd491cdac81468041a791be2c
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.