A library that provides an embeddable, persistent key-value store for fast storage.
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Levi Tamasi 0a97125ec0 Fix data races in BlobDB (#5698)
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
2019-08-14 16:10:36 -07:00
buckifier Change buckifier to support parameterized dependencies (#5648) 2019-08-02 10:55:17 -07:00
build_tools Port folly/synchronization/DistributedMutex to rocksdb (#5642) 2019-08-07 14:34:19 -07:00
cache Cleaned up and simplified LRU cache implementation (#5579) 2019-07-16 19:17:45 -07:00
cmake cmake: cmake related cleanups (#5662) 2019-08-05 19:51:20 -07:00
coverage Fix interpreter lines for files with python2-only syntax. 2019-07-09 10:51:37 -07:00
db exclude TEST_ENV_URI from rocksdb lite (#5686) 2019-08-10 19:15:05 -07:00
docs Text lint all .gitignore files 2019-05-15 11:37:27 -07:00
env fix sign compare warnings (#5651) 2019-07-30 14:12:54 -07:00
examples simplify include directive involving inttypes (#5402) 2019-06-06 13:56:07 -07:00
file New API to get all merge operands for a Key (#5604) 2019-08-06 14:26:44 -07:00
hdfs Add copyright headers per FB open-source checkup tool. (#5199) 2019-04-18 10:55:01 -07:00
include/rocksdb WriteUnPrepared: increase test coverage in transaction_test (#5658) 2019-08-12 12:16:04 -07:00
java Correct the default write buffer size of java doc (#5670) 2019-08-06 09:13:48 -07:00
logging Auto Roll Logger to add some extra checking to avoid segfault. (#5623) 2019-07-24 15:14:40 -07:00
memory Move some logging related files to logging/ (#5387) 2019-05-31 17:23:59 -07:00
memtable simplify include directive involving inttypes (#5402) 2019-06-06 13:56:07 -07:00
monitoring WritePrepared: fix Get without snapshot (#5664) 2019-08-05 13:41:21 -07:00
options The ObjectRegistry class replaces the Registrar and NewCustomObjects.… (#5293) 2019-07-23 17:13:05 -07:00
port fix sign compare warnings (#5651) 2019-07-30 14:12:54 -07:00
table Fix compiler error by deleting GetContext default ctor (#5685) 2019-08-12 16:42:10 -07:00
test_util Added support for sequential read-ahead file (#5580) 2019-07-16 18:21:18 -07:00
third-party Fix clang_check and lite failures (#5680) 2019-08-07 20:19:39 -07:00
tools Block cache analyzer: Support reading from human readable trace file. (#5679) 2019-08-09 13:13:54 -07:00
trace_replay Block cache analyzer: Support reading from human readable trace file. (#5679) 2019-08-09 13:13:54 -07:00
util Avoid user key copying for Get/Put/Write with user-timestamp (#5502) 2019-07-25 15:27:39 -07:00
utilities Fix data races in BlobDB (#5698) 2019-08-14 16:10:36 -07:00
.clang-format A script that automatically reformat affected lines 2014-01-14 12:21:24 -08:00
.gitignore Block cache simulator: Add pysim to simulate caches using reinforcement learning. (#5610) 2019-07-26 14:41:13 -07:00
.lgtm.yml Create lgtm.yml for LGTM.com C/C++ analysis (#4058) 2018-06-26 12:43:04 -07:00
.travis.yml Switch Travis to Xenial build (#4789) 2019-06-17 10:20:02 -07:00
.watchmanconfig Added .watchmanconfig file to rocksdb repo (#5593) 2019-07-19 15:00:33 -07:00
appveyor.yml New API to get all merge operands for a Key (#5604) 2019-08-06 14:26:44 -07:00
AUTHORS Update RocksDB Authors File 2017-10-18 14:42:10 -07:00
CMakeLists.txt Port folly/synchronization/DistributedMutex to rocksdb (#5642) 2019-08-07 14:34:19 -07:00
CODE_OF_CONDUCT.md Add Code of Conduct 2017-12-05 18:42:35 -08:00
CONTRIBUTING.md Add Code of Conduct 2017-12-05 18:42:35 -08:00
COPYING Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
DEFAULT_OPTIONS_HISTORY.md options.delayed_write_rate use the rate of rate_limiter by default. 2017-05-24 09:58:24 -07:00
defs.bzl Change buckifier to support parameterized dependencies (#5648) 2019-08-02 10:55:17 -07:00
DUMP_FORMAT.md First version of rocksdb_dump and rocksdb_undump. 2015-06-19 16:24:36 -07:00
HISTORY.md Support loading custom objects in unit tests (#5676) 2019-08-09 15:12:08 -07:00
INSTALL.md Update the version of the dependencies used by the RocksJava static build (#4761) 2018-12-18 20:25:43 -08:00
issue_template.md Add a template for issues 2017-09-29 11:41:28 -07:00
LANGUAGE-BINDINGS.md LANGUAGE-BINDINGS.md: mention python-rocksdb 2019-03-20 11:10:48 -07:00
LICENSE.Apache Change RocksDB License 2017-07-15 16:11:23 -07:00
LICENSE.leveldb Add back the LevelDB license file 2017-07-16 18:42:18 -07:00
Makefile Port folly/synchronization/DistributedMutex to rocksdb (#5642) 2019-08-07 14:34:19 -07:00
README.md Add LevelDB repository link in the Readme 2019-04-01 18:19:09 -07:00
ROCKSDB_LITE.md Fix some typos in comments and docs. 2018-03-08 10:27:25 -08:00
src.mk Port folly/synchronization/DistributedMutex to rocksdb (#5642) 2019-08-07 14:34:19 -07:00
TARGETS New API to get all merge operands for a Key (#5604) 2019-08-06 14:26:44 -07:00
thirdparty.inc Fix build jemalloc api (#5470) 2019-06-24 17:40:32 -07:00
USERS.md Add Alluxio to USERS.md (#5434) 2019-06-13 12:25:26 -07:00
Vagrantfile Adding CentOS 7 Vagrantfile & build script 2018-02-26 15:27:17 -08:00
WINDOWS_PORT.md #5145 , rename port/dirent.h to port/port_dirent.h to avoid compile err when use port dir as header dir output (#5152) 2019-04-04 11:38:19 -07:00

RocksDB: A Persistent Key-Value Store for Flash and RAM Storage

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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.