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A library that provides an embeddable, persistent key-value store for fast storage.
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C++ 82.1%
Java 10.3%
C 2.5%
Python 1.7%
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Yi Wu cc20ec3689 WritePrepared Txn: Test sequence number 0 is visible 
Summary:
Compaction will output keys with sequence number 0, if it is visible to
earliest snapshot. Adding a test to make sure IsInSnapshot() report sequence number 0 is
visible to any snapshot.
Closes https://github.com/facebook/rocksdb/pull/2974

Differential Revision: D5990665

Pulled By: yiwu-arbug

fbshipit-source-id: ef50ebc777ff8ca688771f3ab598c7a609b0b65e
2017-10-05 16:26:44 -07:00
buckifier rocksdb: make buildable on aarch64 2017-08-13 17:13:54 -07:00
build_tools update dependencies.sh 2017-08-31 15:26:24 -07:00
cache Add -DPORTABLE=1 to MSVC CI build 2017-08-31 16:42:48 -07:00
cmake CMake: Add support for CMake packages 2017-08-28 17:14:37 -07:00
coverage Fix /bin/bash shebangs 2017-08-03 15:56:46 -07:00
db pin L0 filters/indexes for compaction outputs 2017-10-03 16:27:28 -07:00
docs Blog post for 5.8 release 2017-09-28 10:14:09 -07:00
env Repair DBs with trailing slash in name 2017-09-22 12:42:22 -07:00
examples Pinnableslice examples and blog post 2017-08-24 12:26:07 -07:00
hdfs Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
include/rocksdb WritePrepared Txn: duplicate keys 2017-10-05 07:41:02 -07:00
java Limit number of merge operands in Cassandra merge operator 2017-10-02 16:11:40 -07:00
memtable Added CPU prefetch for skiplist 2017-10-04 18:12:52 -07:00
monitoring Use RAII instead of pointers in cf_info_map 2017-09-28 14:26:47 -07:00
options Allow upgrades from nullptr to some merge operator 2017-10-04 09:57:23 -07:00
port Fix MinGW build 2017-09-19 10:28:26 -07:00
table Allow upgrades from nullptr to some merge operator 2017-10-04 09:57:23 -07:00
third-party Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
tools rate limit auto-tuning 2017-10-04 19:15:01 -07:00
util rate limit auto-tuning 2017-10-04 19:15:01 -07:00
utilities WritePrepared Txn: Test sequence number 0 is visible 2017-10-05 16:26:44 -07:00
.clang-format A script that automatically reformat affected lines 2014-01-14 12:21:24 -08:00
.gitignore Remove leftover references to phutil_module_cache 2017-08-23 12:12:21 -07:00
.travis.yml Add more unit test to write_prepared txns 2017-08-31 09:41:27 -07:00
appveyor.yml Add -DPORTABLE=1 to MSVC CI build 2017-08-31 16:42:48 -07:00
AUTHORS Add AUTHORS file. Fix #203 2014-09-29 10:52:18 -07:00
CMakeLists.txt Add ValueType::kTypeBlobIndex 2017-10-03 09:11:23 -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 rate limit auto-tuning 2017-10-04 19:15:01 -07:00
INSTALL.md Default one to rocksdb:x64-windows 2017-09-28 16:12:24 -07:00
issue_template.md Add a template for issues 2017-09-29 11:41:28 -07:00
LANGUAGE-BINDINGS.md add Erlang to the list of language bindings 2017-08-28 16:43:16 -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 release build treat warnings as errors 2017-10-05 12:41:52 -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 Expose LoadLatestOptions, LoadOptionsFromFile and GetLatestOptionsFileName APIs in RocksJava 2017-09-21 17:29:13 -07:00
TARGETS Add ValueType::kTypeBlobIndex 2017-10-03 09:11:23 -07:00
thirdparty.inc Introduce XPRESS compresssion on Windows. (#1081) 2016-04-19 22:54:24 -07:00
USERS.md Add LogDevice to USERS.md 2017-09-25 15:56:40 -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

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/