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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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Reid Horuff d133b08f68 Use correct sequence number when creating memtable 
Summary:
copied from: 5ebfd2623a

Opening existing RocksDB attempts recovery from log files, which uses
wrong sequence number to create the memtable. This is a regression
introduced in change a400336.

This change includes a test demonstrating the problem, without the fix
the test fails with "Operation failed. Try again.: Transaction could not
check for conflicts for operation at SequenceNumber 1 as the MemTable
only contains changes newer than SequenceNumber 2.  Increasing the value
of the max_write_buffer_number_to_maintain option could reduce the
frequency of this error"

This change is a joint effort by Peter 'Stig' Edwards thatsafunnyname
and me.
Closes https://github.com/facebook/rocksdb/pull/1458

Differential Revision: D4143791

Pulled By: reidHoruff

fbshipit-source-id: 5a25033
2016-11-09 12:24:17 -08:00
arcanist_util Make rocksdb work with internal repo 2016-10-28 14:59:50 -07:00
build_tools Update documentation to point at gcc 4.8 2016-10-29 12:09:17 -07:00
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 Use correct sequence number when creating memtable 2016-11-09 12:24:17 -08:00
docs CSS problems again :( 2016-11-08 15:22:31 -08:00
examples Fix typo (#903) 2016-09-14 14:12:31 -07:00
hdfs Fix bug in UnScSigned-off-by: xh931076284 <931076284@qq.com> (#1336) 2016-09-14 10:17:34 -07:00
include/rocksdb c: support seek_for_prev 2016-11-08 12:54:13 -08:00
java Java API - Implement GetFromBatch and GetFromBatchAndDB in WBWI 2016-11-06 02:44:07 -08:00
memtable Add SeekForPrev() to Iterator 2016-09-27 18:20:57 -07:00
port Fix integer overflow in GetL0ThresholdSpeedupCompaction (#1378) 2016-10-23 18:43:29 -07:00
table Insert range deletion meta-block into block cache 2016-11-05 09:24:26 -07:00
third-party Fix clang analyzer errors 2016-07-08 17:50:51 -07:00
tools 16384 as e.g .value for compression_max_dict_bytes 2016-11-09 11:24:20 -08:00
util DeleteRange Get support 2016-11-03 18:54:20 -07:00
utilities Use correct sequence number when creating memtable 2016-11-09 12:24:17 -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 Make rocksdb work with internal repo 2016-10-28 14:59:50 -07:00
.travis.yml Fix travis 2016-08-31 00:10:49 -07:00
appveyor.yml fix vs generator (#1269) 2016-08-10 09:08:13 -07:00
AUTHORS Add AUTHORS file. Fix #203 2014-09-29 10:52:18 -07:00
CMakeLists.txt Introduce FAIL_ON_WARNINGS CMake variable (default ON) 2016-11-01 01:24:16 -07:00
CONTRIBUTING.md facebook accounts are not required for CLA signers 2014-07-08 05:57:54 -04:00
DEFAULT_OPTIONS_HISTORY.md Release RocksDB 4.8.0 2016-05-02 14:38:04 -07:00
DUMP_FORMAT.md First version of rocksdb_dump and rocksdb_undump. 2015-06-19 16:24:36 -07:00
HISTORY.md Add avoid_flush_during_shutdown DB option 2016-11-02 15:39:18 -07:00
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 fix freebsd build include path err and so & jar file name 2016-10-31 09:39:16 -07:00
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 Support IngestExternalFile (remove AddFile restrictions) 2016-10-20 17:05:32 -07:00
thirdparty.inc Introduce XPRESS compresssion on Windows. (#1081) 2016-04-19 22:54:24 -07:00
USERS.md Adding Dgraph to list of Users (#1291) 2016-09-12 17:33:44 -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/