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A library that provides an embeddable, persistent key-value store for fast storage.
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Java 10.3%
C 2.5%
Python 1.7%
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Andres Noetzli ad0d70ca1e Relax asserts in arena_test 
Summary:
Commit c67d206898 did not fix all test conditions
which use Arena::MemoryAllocatedBytes() (see Travis failure
https://travis-ci.org/facebook/rocksdb/jobs/79957700). The assumption of that
commit was that aligned allocations do not call Arena::AllocateNewBlock(), so
malloc_usable_block_size() would not be used for Arena::MemoryAllocatedBytes().
However, there is a code path where Arena::AllocateAligned() calls
AllocateFallback() which in turn calls Arena::AllocateNewBlock(), so
Arena::MemoryAllocatedBytes() may return a greater value than expected even for
aligned requests.

Test Plan: make arena_test && ./arena_test

Reviewers: rven, anthony, yhchiang, aekmekji, igor, sdong

Reviewed By: sdong

Subscribers: dhruba, leveldb

Differential Revision: https://reviews.facebook.net/D46869
2015-09-14 11:54:47 -07:00
arcanist_util Fix linters on non-fb machines 2015-08-11 11:36:12 -07:00
build_tools Improvements to CI jobs 2015-09-11 16:09:01 -07:00
coverage Fix coverage script 2014-11-03 14:53:00 -08:00
db Add counters for L0 stall while L0-L1 compaction is taking place 2015-09-14 11:03:37 -07:00
doc Remove seek compaction 2014-06-20 10:23:02 +02:00
examples Fix compact_files_example 2015-08-25 12:29:44 -07:00
hdfs [Cleanup] Remove RandomRWFile 2015-08-12 10:18:59 -07:00
include/rocksdb Add counters for L0 stall while L0-L1 compaction is taking place 2015-09-14 11:03:37 -07:00
java Fixed a compile warning in rocksjni/loggerjnicallback.cc 2015-09-02 15:07:44 -07:00
port Set max_open_files based on ulimit 2015-09-10 10:49:28 -07:00
table Refactor NewTableReader to accept TableReaderOptions 2015-09-11 11:36:33 -07:00
third-party "make format" against last 10 commits 2015-07-13 13:50:18 -07:00
tools Tests for ManifestDumpCommand and ListColumnFamiliesCommand 2015-09-08 14:23:42 -07:00
util Relax asserts in arena_test 2015-09-14 11:54:47 -07:00
utilities Transactions: Release Locks when rolling back to a savepoint 2015-09-11 18:10:50 -07:00
.arcconfig Integrate Jenkins with Phabricator 2015-04-07 11:56:29 -07:00
.clang-format A script that automatically reformat affected lines 2014-01-14 12:21:24 -08:00
.gitignore Windows Port from Microsoft 2015-07-01 16:13:56 -07:00
.travis.yml Run full test suite in Travis 2015-09-10 15:38:43 -07:00
appveyor.yml Add auto-build manifest for appveyor 2015-08-07 15:37:46 -07:00
AUTHORS Add AUTHORS file. Fix #203 2014-09-29 10:52:18 -07:00
CMakeLists.txt Refactored common code of Builder/CompactionJob out into a CompactionIterator 2015-09-10 14:35:25 -07:00
CONTRIBUTING.md facebook accounts are not required for CLA signers 2014-07-08 05:57:54 -04:00
DUMP_FORMAT.md First version of rocksdb_dump and rocksdb_undump. 2015-06-19 16:24:36 -07:00
HISTORY.md Release RocksDB 4.0.0 2015-09-09 16:01:03 -07:00
INSTALL.md Fixed a typo in INSTALL.md 2015-09-03 19:46:09 -07:00
LICENSE Fix copyright year 2014-03-12 12:06:58 -07:00
Makefile Fixed the build issue of rocksdbjavastaticrelease 2015-09-01 11:07:43 -07:00
PATENTS Update Patent Grant. 2015-04-13 10:33:43 +01:00
README.md Replaced "built on on earlier work" by "built on earlier work" in README.md 2014-09-17 01:16:17 -07:00
ROCKSDB_LITE.md Optimistic Transactions 2015-05-29 14:36:35 -07:00
src.mk Refactored common code of Builder/CompactionJob out into a CompactionIterator 2015-09-10 14:35:25 -07:00
thirdparty.inc Conditional use of third-party libraries 2015-07-09 14:42:41 -07:00
USERS.md Add Cloudera's blog post to USERS.md 2015-09-02 14:04:51 -07:00
Vagrantfile RocksDB on FreeBSD support 2015-02-26 15:19:17 -08:00
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

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/