0a97125ec0
Summary: Some accesses to blob_files_ and open_ttl_files_ in BlobDBImpl, as well as to expiration_range_ in BlobFile were not properly synchronized. The patch fixes this and also makes sure the invariant that obsolete_files_ is a subset of blob_files_ holds even when an attempt to delete an obsolete blob file fails. Pull Request resolved: https://github.com/facebook/rocksdb/pull/5698 Test Plan: COMPILE_WITH_TSAN=1 make blob_db_test gtest-parallel --repeat=1000 ./blob_db_test --gtest_filter="*ShutdownWait*" The test fails with TSAN errors ~20 times out of 1000 without the patch but completes successfully 1000 out of 1000 times with the fix. Differential Revision: D16793235 Pulled By: ltamasi fbshipit-source-id: 8034b987598d4fdc9f15098d4589cc49cde484e9
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.