A library that provides an embeddable, persistent key-value store for fast storage.
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Pengchao Wang 825a22c00c garbage collect tombstones in merge operator
Summary:
Remove cassandra tombstone when reaching the max compaction level (full merge). if all columns collected key will be removed in next compaction via compaction filter
Closes https://github.com/facebook/rocksdb/pull/2791

Reviewed By: sagar0

Differential Revision: D5722465

Pulled By: wpc

fbshipit-source-id: 61e9898a5686551653a16383255aeaab3197e65e
2017-08-31 10:11:54 -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 Not using aligned_alloc with gcc4 + asan 2017-08-29 21:56:02 -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 Dump non-final ZSTD compression type support 2017-08-30 16:41:24 -07:00
docs Minor updates to FlushWAL blog 2017-08-27 07:41:02 -07:00
env Introduce bottom-pri thread pool for large universal compactions 2017-08-03 15:43:29 -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 Extend property map with compaction stats 2017-08-30 15:26:55 -07:00
java garbage collect tombstones in merge operator 2017-08-31 10:11:54 -07:00
memtable Introduce bottom-pri thread pool for large universal compactions 2017-08-03 15:43:29 -07:00
monitoring Scale histogram bucket size by constant factor 2017-08-21 17:10:40 -07:00
options fix some misspellings 2017-08-16 21:57:20 -07:00
port Not using aligned_alloc with gcc4 + asan 2017-08-29 21:56:02 -07:00
table support disabling checksum in block-based table 2017-08-23 19:40:47 -07:00
third-party Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
tools Set defaults for high-pri and low-pri thread pools in regression test script 2017-08-30 17:29:34 -07:00
util Add more unit test to write_prepared txns 2017-08-31 09:41:27 -07:00
utilities garbage collect tombstones in merge operator 2017-08-31 10:11:54 -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 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 Add more unit test to write_prepared txns 2017-08-31 09:41:27 -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 Bumping version to 5.8 2017-08-30 14:26:12 -07:00
INSTALL.md add vcpkg as an windows option 2017-07-24 15:12:45 -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 Add more unit test to write_prepared txns 2017-08-31 09:41:27 -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 garbage collect tombstones in merge operator 2017-08-31 10:11:54 -07:00
TARGETS Add more unit test to write_prepared txns 2017-08-31 09:41:27 -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/