A library that provides an embeddable, persistent key-value store for fast storage.
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Maysam Yabandeh 7bc18e2727 Disable snapshot refresh feature when snap_refresh_nanos is 0 (#5724)
Summary:
The comments of snap_refresh_nanos advertise that the snapshot refresh feature will be disabled when the option is set to 0. This contract is however not honored in the code: https://github.com/facebook/rocksdb/pull/5278
The patch fixes that and also adds an assert to ensure that the feature is not used when the option  is zero.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/5724

Differential Revision: D16918185

Pulled By: maysamyabandeh

fbshipit-source-id: fec167287df7d85093e087fc39c0eb243e3bbd7e
2019-08-20 11:40:07 -07:00
buckifier Change buckifier to support parameterized dependencies (#5648) 2019-08-02 10:55:17 -07:00
build_tools Port folly/synchronization/DistributedMutex to rocksdb (#5642) 2019-08-07 14:34:19 -07:00
cache Cleaned up and simplified LRU cache implementation (#5579) 2019-07-16 19:17:45 -07:00
cmake cmake: s/SNAPPY_LIBRARIES/snappy_LIBRARIES/ (#5687) 2019-08-16 15:49:23 -07:00
coverage Fix interpreter lines for files with python2-only syntax. 2019-07-09 10:51:37 -07:00
db Disable snapshot refresh feature when snap_refresh_nanos is 0 (#5724) 2019-08-20 11:40:07 -07:00
docs Blog post for write_unprepared (#5711) 2019-08-15 14:41:13 -07:00
env fix compile error: ‘FALLOC_FL_KEEP_SIZE’ undeclared (#5708) 2019-08-16 13:58:05 -07:00
examples simplify include directive involving inttypes (#5402) 2019-06-06 13:56:07 -07:00
file New API to get all merge operands for a Key (#5604) 2019-08-06 14:26:44 -07:00
hdfs Add copyright headers per FB open-source checkup tool. (#5199) 2019-04-18 10:55:01 -07:00
include/rocksdb Introduce IngestExternalFileOptions.verify_checksums_readahead_size (#5721) 2019-08-20 10:43:39 -07:00
java Fixes for building RocksJava releases on arm64v8 2019-08-16 16:27:50 -07:00
logging Auto Roll Logger to add some extra checking to avoid segfault. (#5623) 2019-07-24 15:14:40 -07:00
memory Move some logging related files to logging/ (#5387) 2019-05-31 17:23:59 -07:00
memtable simplify include directive involving inttypes (#5402) 2019-06-06 13:56:07 -07:00
monitoring fix compiling with -DNPERF_CONTEXT (#5704) 2019-08-16 14:38:08 -07:00
options The ObjectRegistry class replaces the Registrar and NewCustomObjects.… (#5293) 2019-07-23 17:13:05 -07:00
port fix sign compare warnings (#5651) 2019-07-30 14:12:54 -07:00
table Do readahead in VerifyChecksum() (#5713) 2019-08-16 16:42:56 -07:00
test_util Added support for sequential read-ahead file (#5580) 2019-07-16 18:21:18 -07:00
third-party Fix TSAN failures in DistributedMutex tests (#5684) 2019-08-14 17:01:31 -07:00
tools Slightly adjust atomic white box test's kill odd (#5717) 2019-08-19 10:51:59 -07:00
trace_replay Block cache analyzer: Support reading from human readable trace file. (#5679) 2019-08-09 13:13:54 -07:00
util ThreadPoolImpl::Impl::BGThreadWrapper() returns void (#5709) 2019-08-16 13:55:41 -07:00
utilities Blacklist TransactionTest.GetWithoutSnapshot from valgrind_test (#5715) 2019-08-16 15:36:49 -07:00
.clang-format A script that automatically reformat affected lines 2014-01-14 12:21:24 -08:00
.gitignore Block cache simulator: Add pysim to simulate caches using reinforcement learning. (#5610) 2019-07-26 14:41:13 -07:00
.lgtm.yml Create lgtm.yml for LGTM.com C/C++ analysis (#4058) 2018-06-26 12:43:04 -07:00
.travis.yml Switch Travis to Xenial build (#4789) 2019-06-17 10:20:02 -07:00
.watchmanconfig Added .watchmanconfig file to rocksdb repo (#5593) 2019-07-19 15:00:33 -07:00
appveyor.yml New API to get all merge operands for a Key (#5604) 2019-08-06 14:26:44 -07:00
AUTHORS Update RocksDB Authors File 2017-10-18 14:42:10 -07:00
CMakeLists.txt Port folly/synchronization/DistributedMutex to rocksdb (#5642) 2019-08-07 14:34:19 -07:00
CODE_OF_CONDUCT.md Add Code of Conduct 2017-12-05 18:42:35 -08:00
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 Change buckifier to support parameterized dependencies (#5648) 2019-08-02 10:55:17 -07:00
DUMP_FORMAT.md First version of rocksdb_dump and rocksdb_undump. 2015-06-19 16:24:36 -07:00
HISTORY.md Disable snapshot refresh feature when snap_refresh_nanos is 0 (#5724) 2019-08-20 11:40:07 -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 a template for issues 2017-09-29 11:41:28 -07:00
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 Do readahead in VerifyChecksum() (#5713) 2019-08-16 16:42:56 -07:00
README.md Add LevelDB repository link in the Readme 2019-04-01 18:19:09 -07:00
ROCKSDB_LITE.md Fix some typos in comments and docs. 2018-03-08 10:27:25 -08:00
src.mk Port folly/synchronization/DistributedMutex to rocksdb (#5642) 2019-08-07 14:34:19 -07:00
TARGETS New API to get all merge operands for a Key (#5604) 2019-08-06 14:26:44 -07:00
thirdparty.inc Fix build jemalloc api (#5470) 2019-06-24 17:40:32 -07:00
USERS.md Add Alluxio to USERS.md (#5434) 2019-06-13 12:25:26 -07:00
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

Linux/Mac Build Status Windows Build status PPC64le 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/

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.