A library that provides an embeddable, persistent key-value store for fast storage.
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anand76 c1ccd6b6af Implement deadline support for MultiGet (#6710)
Summary:
Initial implementation of ReadOptions.deadline for MultiGet. If the request takes longer than the deadline, the keys not yet found will be returned with Status::TimedOut(). This
implementation enforces the deadline in DBImpl, which is fairly high
level. Its best effort and may not check the deadline after every key
lookup, but may do so after a batch of keys.

In subsequent stages, we will extend this to passing a timeout down to the FileSystem.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6710

Test Plan: Add new unit tests

Reviewed By: riversand963

Differential Revision: D21149158

Pulled By: anand1976

fbshipit-source-id: 9f44eecffeb40873f5034ed59a66d21f9f88879e
2020-04-21 14:51:51 -07:00
.circleci Migrate AppVeyor to CircleCI (#6518) 2020-03-13 21:58:51 -07:00
buckifier Buck config: Re-enable liburing under Linux (#6451) 2020-02-24 15:47:34 -08:00
build_tools C++20 compatibility (#6697) 2020-04-20 13:24:25 -07:00
cache Revamp cache_bench to resemble a real workload (#6629) 2020-04-03 10:26:49 -07:00
cmake C++20 compatibility (#6697) 2020-04-20 13:24:25 -07:00
coverage Update a few scripts to be python3 compatible (#6525) 2020-03-24 21:00:27 -07:00
db Implement deadline support for MultiGet (#6710) 2020-04-21 14:51:51 -07:00
db_stress_tool crash_test to cover options.avoid_flush_during_recovery (#6712) 2020-04-16 12:11:45 -07:00
docs Log warning for high bits/key in legacy Bloom filter (#6312) 2020-01-17 19:37:35 -08:00
env Add IsDirectory() to Env and FS (#6711) 2020-04-17 14:39:18 -07:00
examples Use DestroyColumnFamilyHandle instead of directly deleting column family handle (#6505) 2020-03-12 14:30:46 -07:00
file Fix result slice's address for direct io read (#6672) 2020-04-08 21:20:31 -07:00
hdfs Add IsDirectory() to Env and FS (#6711) 2020-04-17 14:39:18 -07:00
include/rocksdb Implement deadline support for MultiGet (#6710) 2020-04-21 14:51:51 -07:00
java Fix tabs and lint-ignores (#6734) 2020-04-20 11:39:31 -07:00
logging Fix info log source file display length (#5824) 2020-04-08 20:18:08 -07:00
memory C++20 compatibility (#6697) 2020-04-20 13:24:25 -07:00
memtable C++20 compatibility (#6697) 2020-04-20 13:24:25 -07:00
monitoring fix compiler errors with -DNPERF_CONTEXT (#6642) 2020-04-03 13:24:16 -07:00
options Implement deadline support for MultiGet (#6710) 2020-04-21 14:51:51 -07:00
port C++20 compatibility (#6697) 2020-04-20 13:24:25 -07:00
table Prevent uninitialized load in IndexBlockIter (#6736) 2020-04-20 16:32:43 -07:00
test_util C++20 compatibility (#6697) 2020-04-20 13:24:25 -07:00
third-party C++20 compatibility (#6697) 2020-04-20 13:24:25 -07:00
tools C++20 compatibility (#6697) 2020-04-20 13:24:25 -07:00
trace_replay Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
util Prevents Table Cache to open same files more times (#6707) 2020-04-21 13:16:31 -07:00
utilities C++20 compatibility (#6697) 2020-04-20 13:24:25 -07:00
.clang-format A script that automatically reformat affected lines 2014-01-14 12:21:24 -08:00
.gitignore Separate timestamp related test from db_basic_test (#6516) 2020-03-13 11:37:15 -07:00
.lgtm.yml Create lgtm.yml for LGTM.com C/C++ analysis (#4058) 2018-06-26 12:43:04 -07:00
.travis.yml C++20 compatibility (#6697) 2020-04-20 13:24:25 -07:00
.watchmanconfig Added .watchmanconfig file to rocksdb repo (#5593) 2019-07-19 15:00:33 -07:00
appveyor.yml C++20 compatibility (#6697) 2020-04-20 13:24:25 -07:00
AUTHORS Update RocksDB Authors File 2017-10-18 14:42:10 -07:00
CMakeLists.txt C++20 compatibility (#6697) 2020-04-20 13:24:25 -07:00
CODE_OF_CONDUCT.md Adopt Contributor Covenant 2019-08-29 23:21:01 -07:00
CONTRIBUTING.md Add Code of Conduct 2017-12-05 18:42:35 -08:00
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
defs.bzl Make testpilot recognize that these tests have coverage instrumentation 2020-03-20 11:23:23 -07:00
DUMP_FORMAT.md First version of rocksdb_dump and rocksdb_undump. 2015-06-19 16:24:36 -07:00
HISTORY.md Set max_background_flushes dynamically (#6701) 2020-04-20 16:19:02 -07:00
INSTALL.md Update the version of the dependencies used by the RocksJava static build (#4761) 2018-12-18 20:25:43 -08:00
issue_template.md Add Google Group to Issue Template 2020-01-28 14:40:37 -08:00
LANGUAGE-BINDINGS.md LANGUAGE-BINDINGS.md: mention python-rocksdb 2019-03-20 11:10:48 -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 Update RocksJava static version of bzip2 (#6714) 2020-04-16 15:35:24 -07:00
README.md Replaced some words (#5877) 2019-10-07 12:28:09 -07:00
ROCKSDB_LITE.md Fix some typos in comments and docs. 2018-03-08 10:27:25 -08:00
src.mk Compaction with timestamp: input boundaries (#6645) 2020-04-10 16:05:49 -07:00
TARGETS Fault injection in db_stress (#6538) 2020-04-10 17:21:26 -07:00
thirdparty.inc Fix build jemalloc api (#5470) 2019-06-24 17:40:32 -07:00
USERS.md add user nebula (#6271) 2020-01-08 13:46:43 -08:00
Vagrantfile Adding CentOS 7 Vagrantfile & build script 2018-02-26 15:27:17 -08:00
WINDOWS_PORT.md #5145 , rename port/dirent.h to port/port_dirent.h to avoid compile err when use port dir as header dir output (#5152) 2019-04-04 11:38:19 -07:00

RocksDB: A Persistent Key-Value Store for Flash and RAM Storage

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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 especially 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/

License

RocksDB is dual-licensed under both the GPLv2 (found in the COPYING file in the root directory) and Apache 2.0 License (found in the LICENSE.Apache file in the root directory). You may select, at your option, one of the above-listed licenses.