A library that provides an embeddable, persistent key-value store for fast storage.
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Siying Dong 71598cdc75 Fix false removal of tombstone issue in FIFO and kCompactionStyleNone
Summary:
Similar to the bug fixed by https://github.com/facebook/rocksdb/pull/2726, FIFO with compaction and kCompactionStyleNone during user customized CompactFiles() with output level to be 0 can suffer from the same problem. Fix it by leveraging the bottommost_level_ flag.
Closes https://github.com/facebook/rocksdb/pull/2735

Differential Revision: D5626906

Pulled By: siying

fbshipit-source-id: 2b148d0461c61dbd986d74655e384419ae442158
2017-08-15 13:02:19 -07:00
buckifier rocksdb: make buildable on aarch64 2017-08-13 17:13:54 -07:00
build_tools Update RocksDBCommonHelper to use escapeshellarg 2017-08-15 06:56:31 -07:00
cache Overload new[] to properly align LRUCacheShard 2017-08-14 14:41:56 -07:00
cmake/modules cmake: support more compression type 2017-08-13 21:47:45 -07:00
coverage Fix /bin/bash shebangs 2017-08-03 15:56:46 -07:00
db Fix false removal of tombstone issue in FIFO and kCompactionStyleNone 2017-08-15 13:02:19 -07:00
docs 5.6.1 release blog post 2017-07-25 12:27:22 -07:00
env Introduce bottom-pri thread pool for large universal compactions 2017-08-03 15:43:29 -07:00
examples Replace dynamic_cast<> 2017-07-28 16:27:16 -07:00
hdfs Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
include/rocksdb Fix missing stdlib include required for abort() 2017-08-15 12:32:11 -07:00
java Fix for CMakeLists.txt on Windows for RocksJava 2017-08-12 16:44:12 -07:00
memtable Introduce bottom-pri thread pool for large universal compactions 2017-08-03 15:43:29 -07:00
monitoring approximate histogram stats to save cpu 2017-08-11 13:13:12 -07:00
options Replace dynamic_cast<> 2017-07-28 16:27:16 -07:00
port fix WinEnv assertions 2017-08-08 17:20:52 -07:00
table Support prefetch last 512KB with direct I/O in block based file reader 2017-08-11 12:16:45 -07:00
third-party Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
tools db_stress rolling active window 2017-08-15 12:02:16 -07:00
util Support prefetch last 512KB with direct I/O in block based file reader 2017-08-11 12:16:45 -07:00
utilities Fix blob DB transaction usage while GC 2017-08-11 12:43:17 -07:00
.clang-format A script that automatically reformat affected lines 2014-01-14 12:21:24 -08:00
.gitignore Simple blob file dumper 2017-05-23 10:42:59 -07:00
.travis.yml Build fewer tests in Travis platform_dependent tests 2017-07-27 17:29:01 -07:00
appveyor.yml Rework test running script. 2017-04-05 11:39:20 -07:00
AUTHORS Add AUTHORS file. Fix #203 2014-09-29 10:52:18 -07:00
CMakeLists.txt properly set C[XX]FLAGS during CMake configure-time checks 2017-08-13 21:47:45 -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 fix deletion dropping in intra-L0 2017-08-11 18:12:38 -07:00
INSTALL.md add vcpkg as an windows option 2017-07-24 15:12:45 -07:00
LANGUAGE-BINDINGS.md Adding Dlang to the list 2017-02-16 17:24:10 -08:00
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 Overload new[] to properly align LRUCacheShard 2017-08-14 14:41:56 -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 Refactor PessimisticTransaction 2017-08-07 16:12:29 -07:00
TARGETS rocksdb: make buildable on aarch64 2017-08-13 17:13:54 -07:00
thirdparty.inc Introduce XPRESS compresssion on Windows. (#1081) 2016-04-19 22:54:24 -07:00
USERS.md Update USERS.md 2017-08-06 12:44:40 -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

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/