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Siying Dong 036d668b19 Fix wrong result in data race case related to Get() 
Summary:
In theory, Get() can get a wrong result, if it races in a special with with flush. The bug can be reproduced in DBTest2.GetRaceFlush. Fix this bug by getting snapshot after referencing the super version.
Closes https://github.com/facebook/rocksdb/pull/1816

Differential Revision: D4475958

Pulled By: siying

fbshipit-source-id: bd9e67a
2017-02-03 11:39:15 -08:00
arcanist_util Fix arc setting for Facebook internal tools 2017-02-02 13:24:16 -08:00
build_tools Version librocksdb.so 2017-01-24 11:09:10 -08:00
cmake/modules cmake support for linux and osx (#1358) 2016-09-28 11:53:15 -07:00
coverage Fix coverage script 2014-11-03 14:53:00 -08:00
db Fix wrong result in data race case related to Get() 2017-02-03 11:39:15 -08:00
docs 5.0.1 release blog post 2017-01-06 15:24:15 -08:00
examples examples: Add options_file_example to target all 2016-12-28 19:09:16 -08:00
hdfs Fix bug in UnScSigned-off-by: xh931076284 <931076284@qq.com> (#1336) 2016-09-14 10:17:34 -07:00
include/rocksdb Change the default of delayed slowdown value to 16MB/s 2017-02-01 20:39:17 -08:00
java fix batchresult handle leak 2017-01-20 13:24:12 -08:00
memtable Unified InlineSkipList::Insert algorithm with hinting 2016-11-22 14:09:13 -08:00
port Follow up for DirectIO refactor 2017-01-15 13:24:16 -08:00
table Rename merger.h -> merging_iterator.h 2017-02-02 16:54:19 -08:00
third-party Kill flashcache code in RocksDB 2016-12-01 10:09:22 -08:00
tools Deserialize custom Statistics object in db_bench 2017-01-26 15:24:16 -08:00
util Move ThreadLocal implementation into .cc 2017-02-02 14:09:12 -08:00
utilities Rename merger.h -> merging_iterator.h 2017-02-02 16:54:19 -08:00
.arcconfig Make rocksdb work with internal repo 2016-10-28 14:59:50 -07:00
.clang-format A script that automatically reformat affected lines 2014-01-14 12:21:24 -08:00
.gitignore Less linear search in DBIter::Seek() when keys are overwritten a lot 2016-11-28 10:24:11 -08:00
.travis.yml Split travis jobs 2017-01-19 13:39:12 -08:00
appveyor.yml Enable DBTest.GroupCommit as it runs in a reasonlable time now. 2017-01-18 14:24:11 -08:00
AUTHORS Add AUTHORS file. Fix #203 2014-09-29 10:52:18 -07:00
CMakeLists.txt Rename merger.h -> merging_iterator.h 2017-02-02 16:54:19 -08:00
CONTRIBUTING.md facebook accounts are not required for CLA signers 2014-07-08 05:57:54 -04:00
DEFAULT_OPTIONS_HISTORY.md Change the default of delayed slowdown value to 16MB/s 2017-02-01 20:39:17 -08:00
DUMP_FORMAT.md First version of rocksdb_dump and rocksdb_undump. 2015-06-19 16:24:36 -07:00
HISTORY.md Change the default of delayed slowdown value to 16MB/s 2017-02-01 20:39:17 -08:00
INSTALL.md Update documentation to point at gcc 4.8 2016-10-29 12:09:17 -07:00
LANGUAGE-BINDINGS.md Update LANGUAGE-BINDINGS.md 2016-07-15 13:09:30 +02:00
LICENSE Updated all copyright headers to the new format. 2016-02-09 15:12:00 -08:00
Makefile Generalize Env registration framework 2017-01-25 16:09:14 -08:00
PATENTS Update Patent Grant. 2015-04-13 10:33:43 +01:00
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 Rename merger.h -> merging_iterator.h 2017-02-02 16:54:19 -08:00
thirdparty.inc Introduce XPRESS compresssion on Windows. (#1081) 2016-04-19 22:54:24 -07:00
USERS.md Update USERS.md add user Pika 2017-01-25 10:39:17 -08:00
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

README.md

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/