A library that provides an embeddable, persistent key-value store for fast storage.
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Yi Wu 6083bc79f8 Blob DB TTL extractor
Summary:
Introducing blob_db::TTLExtractor to replace extract_ttl_fn. The TTL
extractor can be use to extract TTL from keys insert with Put or
WriteBatch. Change over existing extract_ttl_fn are:
* If value is changed, it will be return via std::string* (rather than Slice*). With Slice* the new value has to be part of the existing value. With std::string* the limitation is removed.
* It can optionally return TTL or expiration.

Other changes in this PR:
* replace `std::chrono::system_clock` with `Env::NowMicros` so that I can mock time in tests.
* add several TTL tests.
* other minor naming change.
Closes https://github.com/facebook/rocksdb/pull/2659

Differential Revision: D5512627

Pulled By: yiwu-arbug

fbshipit-source-id: 0dfcb00d74d060b8534c6130c808e4d5d0a54440
2017-07-27 23:26:04 -07:00
arcanist_util Remove arcanist_util directory 2017-07-19 16:49:55 -07:00
buckifier TARGETS file not setting sse explicitly 2017-07-27 17:41:36 -07:00
build_tools Fix use of RocksDBCommonHelper in cont_integration.sh 2017-07-26 19:31:36 -07:00
cache LRUCacheShard cache line size alignment 2017-07-24 10:54:37 -07:00
cmake/modules CMake: more MinGW fixes 2017-04-06 14:09:13 -07:00
coverage Fix coverage script 2014-11-03 14:53:00 -08:00
db fix asan/valgrind for TableCache cleanup 2017-07-27 20:28:04 -07:00
docs 5.6.1 release blog post 2017-07-25 12:27:22 -07:00
env Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
examples Change RocksDB License 2017-07-15 16:11:23 -07:00
hdfs Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
include/rocksdb Added db paths to c 2017-07-24 11:58:02 -07:00
java Gcc 7 ParsedInternalKey replace memset with clear function. 2017-07-24 11:31:15 -07:00
memtable Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
monitoring Change RocksDB License 2017-07-15 16:11:23 -07:00
options Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
port LRUCacheShard cache line size alignment 2017-07-24 10:54:37 -07:00
table fix asan/valgrind for TableCache cleanup 2017-07-27 20:28:04 -07:00
third-party Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
tools fix db_bench argument type 2017-07-27 12:14:37 -07:00
util Fix LITE unit tests 2017-07-26 21:11:47 -07:00
utilities Blob DB TTL extractor 2017-07-27 23:26:04 -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 Blob DB TTL extractor 2017-07-27 23:26:04 -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 Release note for partitioned index/filters 2017-07-25 10:24:12 -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 Build fewer tests in Travis platform_dependent tests 2017-07-27 17:29:01 -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 Blob DB TTL extractor 2017-07-27 23:26:04 -07:00
TARGETS Blob DB TTL extractor 2017-07-27 23:26:04 -07:00
thirdparty.inc Introduce XPRESS compresssion on Windows. (#1081) 2016-04-19 22:54:24 -07:00
USERS.md fixed typo 2017-06-13 16:58:01 -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/