A library that provides an embeddable, persistent key-value store for fast storage.
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Yi Wu 0d4a2b7330 Avoid blob db call Sync() while writing
Summary:
The FsyncFiles background job call Fsync() periodically for blob files. However it can access WritableFileWriter concurrently with a Put() or Write(). And WritableFileWriter does not support concurrent access. It will lead to WritableFileWriter buffer being flush with same content twice, and blob file end up corrupted. Fixing by simply let FsyncFiles hold write_mutex_.
Closes https://github.com/facebook/rocksdb/pull/2685

Differential Revision: D5561908

Pulled By: yiwu-arbug

fbshipit-source-id: f0bb5bcab0e05694e053b8c49eab43640721e872
2017-08-04 13:12:07 -07:00
arcanist_util Remove arcanist_util directory 2017-07-19 16:49:55 -07:00
buckifier Fix /bin/bash shebangs 2017-08-03 15:56:46 -07:00
build_tools Don't add -ljemalloc when DISABLE_JEMALLOC is set 2017-08-04 10:42:32 -07:00
cache Replace dynamic_cast<> 2017-07-28 16:27:16 -07:00
cmake/modules CMake: more MinGW fixes 2017-04-06 14:09:13 -07:00
coverage Fix /bin/bash shebangs 2017-08-03 15:56:46 -07:00
db Introduce bottom-pri thread pool for large universal compactions 2017-08-03 15:43:29 -07:00
docs 5.6.1 release blog post 2017-07-25 12:27:22 -07:00
env Introduce bottom-pri thread pool for large universal compactions 2017-08-03 15:43:29 -07:00
examples Replace dynamic_cast<> 2017-07-28 16:27:16 -07:00
hdfs Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
include/rocksdb Introduce bottom-pri thread pool for large universal compactions 2017-08-03 15:43:29 -07:00
java Fix statistics in RocksJava sample 2017-08-01 16:58:26 -07:00
memtable Introduce bottom-pri thread pool for large universal compactions 2017-08-03 15:43:29 -07:00
monitoring Replace dynamic_cast<> 2017-07-28 16:27:16 -07:00
options Replace dynamic_cast<> 2017-07-28 16:27:16 -07:00
port LRUCacheShard cache line size alignment 2017-07-24 10:54:37 -07:00
table Replace dynamic_cast<> 2017-07-28 16:27:16 -07:00
third-party Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
tools db_bench background work thread pool size arguments 2017-08-03 21:41:49 -07:00
util Introduce bottom-pri thread pool for large universal compactions 2017-08-03 15:43:29 -07:00
utilities Avoid blob db call Sync() while writing 2017-08-04 13:12:07 -07:00
.clang-format A script that automatically reformat affected lines 2014-01-14 12:21:24 -08:00
.gitignore Simple blob file dumper 2017-05-23 10:42:59 -07:00
.travis.yml Build fewer tests in Travis platform_dependent tests 2017-07-27 17:29:01 -07:00
appveyor.yml Rework test running script. 2017-04-05 11:39:20 -07:00
AUTHORS Add AUTHORS file. Fix #203 2014-09-29 10:52:18 -07:00
CMakeLists.txt Refactor TransactionImpl 2017-08-03 08:57:22 -07:00
CONTRIBUTING.md Remove the licensing description in CONTRIBUTING.md 2017-07-16 15:57:18 -07:00
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
DUMP_FORMAT.md First version of rocksdb_dump and rocksdb_undump. 2015-06-19 16:24:36 -07:00
HISTORY.md Introduce bottom-pri thread pool for large universal compactions 2017-08-03 15:43:29 -07:00
INSTALL.md add vcpkg as an windows option 2017-07-24 15:12:45 -07:00
LANGUAGE-BINDINGS.md Adding Dlang to the list 2017-02-16 17:24:10 -08:00
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 Don't add -ljemalloc when DISABLE_JEMALLOC is set 2017-08-04 10:42:32 -07:00
README.md Appveyor badge to show master branch 2016-07-26 13:54:08 -07:00
ROCKSDB_LITE.md Optimistic Transactions 2015-05-29 14:36:35 -07:00
src.mk Refactor TransactionImpl 2017-08-03 08:57:22 -07:00
TARGETS Dump Blob DB options to info log 2017-08-01 13:01:47 -07:00
thirdparty.inc Introduce XPRESS compresssion on Windows. (#1081) 2016-04-19 22:54:24 -07:00
USERS.md fixed typo 2017-06-13 16:58:01 -07:00
Vagrantfile Update Vagrant file (test internal phabricator workflow) 2016-10-28 15:39:19 -07:00
WINDOWS_PORT.md Commit both PR and internal code review changes 2015-07-07 16:58:20 -07:00

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

Build Status Build status

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/