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Andrew Kryczka 01eabf7375 Fix double-counted deletion stat 
Summary:
Both the single deletion and the value are included in compaction outputs, so no need to update the stat for the value's deletion yet, otherwise it'd be double-counted.
Closes https://github.com/facebook/rocksdb/pull/1574

Differential Revision: D4241181

Pulled By: ajkr

fbshipit-source-id: c9aaa15
2016-11-28 15:54:12 -08:00
arcanist_util Rocksdb contruns to new Sandcastle API 2016-11-10 10:54:20 -08:00
build_tools Introduce Lua Extension: RocksLuaCompactionFilter 2016-11-16 15:39:12 -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 double-counted deletion stat 2016-11-28 15:54:12 -08:00
docs Reword support a little bit to more clear and concise 2016-11-21 11:39:13 -08:00
examples Fix failed compaction_filter_example and add it into make all 2016-11-15 17:09:10 -08:00
hdfs Fix bug in UnScSigned-off-by: xh931076284 <931076284@qq.com> (#1336) 2016-09-14 10:17:34 -07:00
include/rocksdb DeleteRange compaction statistics 2016-11-28 11:54:12 -08:00
java Remove Ticker::SEQUENCE_NUMBER 2016-11-16 22:39:09 -08:00
memtable Unified InlineSkipList::Insert algorithm with hinting 2016-11-22 14:09:13 -08:00
port Fix integer overflow in GetL0ThresholdSpeedupCompaction (#1378) 2016-10-23 18:43:29 -07:00
table Range deletion microoptimizations 2016-11-21 12:24:13 -08:00
third-party Fix clang analyzer errors 2016-07-08 17:50:51 -07:00
tools Range deletion microoptimizations 2016-11-21 12:24:13 -08:00
util Less linear search in DBIter::Seek() when keys are overwritten a lot 2016-11-28 10:24:11 -08:00
utilities Making persistent cache more resilient to filesystem failures 2016-11-22 10:39:10 -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 Ask travis to use JDK 7 2016-11-16 10:54:12 -08:00
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 cmake: s/STEQUAL/STREQUAL/ 2016-11-18 14:54:14 -08:00
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 Improve Write Stalling System 2016-11-23 09:24:15 -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 Skip ldb test in Travis 2016-11-18 19:24:13 -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 Fix src.mk 2016-11-16 18:05:19 -08:00
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/