A library that provides an embeddable, persistent key-value store for fast storage.
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Yanqin Jin 3f263ef536 Add a temporary option for user to opt-out enforcement of SingleDelete contract (#9983)
Summary:
PR https://github.com/facebook/rocksdb/issues/9888 started to enforce the contract of single delete described in https://github.com/facebook/rocksdb/wiki/Single-Delete.

For some of existing use cases, it is desirable to have a transition during which compaction will not fail
if the contract is violated. Therefore, we add a temporary option `enforce_single_del_contracts` to allow
application to opt out from this new strict behavior. Once transition completes, the flag can be set to `true` again.

In a future release, the option will be removed.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/9983

Test Plan: make check

Reviewed By: ajkr

Differential Revision: D36333672

Pulled By: riversand963

fbshipit-source-id: dcb703ea0ed08076a1422f1bfb9914afe3c2caa2
2022-05-16 15:44:59 -07:00
.circleci Remove slack CircleCI hook (#9982) 2022-05-11 13:17:21 -07:00
.github/workflows Use released clang-format instead of the one from dev branch (#9646) 2022-03-01 10:51:38 -08:00
buckifier Remove flaky servicelab metrics DBPut P95/P99 (#9844) 2022-04-15 13:56:22 -07:00
build_tools Improve memkind library detection (#9134) 2022-05-09 12:26:09 -07:00
cache Remove own ToString() (#9955) 2022-05-06 13:03:58 -07:00
cmake gcc-11 and cmake related cleanup (#9286) 2021-12-17 17:04:35 -08:00
coverage Fix commit_prereq and other targets (#9797) 2022-04-04 09:58:18 -07:00
db Add a temporary option for user to opt-out enforcement of SingleDelete contract (#9983) 2022-05-16 15:44:59 -07:00
db_stress_tool Fix stress test with best-efforts-recovery (#9986) 2022-05-13 12:29:20 -07:00
docs Bump nokogiri from 1.13.3 to 1.13.4 in /docs (#9831) 2022-04-12 09:07:14 -07:00
env Added GetFactoryCount/Names/Types to ObjectRegistry (#9358) 2022-05-16 09:44:43 -07:00
examples Remove BlockBasedTableOptions.hash_index_allow_collision (#9454) 2022-03-01 13:58:02 -08:00
file Remove own ToString() (#9955) 2022-05-06 13:03:58 -07:00
fuzz Fix compilation errors and add fuzzers to CircleCI (#9420) 2022-02-01 10:32:15 -08:00
include/rocksdb Add a temporary option for user to opt-out enforcement of SingleDelete contract (#9983) 2022-05-16 15:44:59 -07:00
java Fix conversion issues in MutableOptions (#9194) 2022-05-09 12:34:26 -07:00
logging Use system-wide thread ID in info log lines (#9164) 2021-11-12 19:46:06 -08:00
memory arena.h: fix Arena::IsInInlineBlock() (#9317) 2022-05-09 12:21:21 -07:00
memtable Remove own ToString() (#9955) 2022-05-06 13:03:58 -07:00
microbench Add microbenchmarks for DB::GetMergeOperands() (#9971) 2022-05-09 15:17:19 -07:00
monitoring Use std::numeric_limits<> (#9954) 2022-05-05 13:08:21 -07:00
options Add a temporary option for user to opt-out enforcement of SingleDelete contract (#9983) 2022-05-16 15:44:59 -07:00
plugin Add initial CMake support to plugin (#9214) 2021-11-30 17:16:53 -08:00
port Added GetFactoryCount/Names/Types to ObjectRegistry (#9358) 2022-05-16 09:44:43 -07:00
table Added GetFactoryCount/Names/Types to ObjectRegistry (#9358) 2022-05-16 09:44:43 -07:00
test_util Added GetFactoryCount/Names/Types to ObjectRegistry (#9358) 2022-05-16 09:44:43 -07:00
third-party Meta-internal folly integration with F14FastMap (#9546) 2022-04-13 07:34:01 -07:00
tools Fix stress test with best-efforts-recovery (#9986) 2022-05-13 12:29:20 -07:00
trace_replay Use std::numeric_limits<> (#9954) 2022-05-05 13:08:21 -07:00
util util/ribbon_alg.h: removed duplicate word "vector" (#9216) 2022-05-06 18:38:13 -07:00
utilities Use SpecialEnv to speed up some slow BackupEngineRateLimitingTestWithParam (#9974) 2022-05-16 10:54:02 -07:00
.clang-format A script that automatically reformat affected lines 2014-01-14 12:21:24 -08:00
.gitignore Meta-internal folly integration with F14FastMap (#9546) 2022-04-13 07:34:01 -07:00
.lgtm.yml Create lgtm.yml for LGTM.com C/C++ analysis (#4058) 2018-06-26 12:43:04 -07:00
.travis.yml Fix remaining uses of "backupable" (#9792) 2022-04-05 09:52:33 -07:00
.watchmanconfig Added .watchmanconfig file to rocksdb repo (#5593) 2019-07-19 15:00:33 -07:00
AUTHORS Update RocksDB Authors File 2017-10-18 14:42:10 -07:00
CMakeLists.txt Generate pkg-config file via CMake (#9945) 2022-05-05 09:03:31 -07:00
CODE_OF_CONDUCT.md Adopt Contributor Covenant 2019-08-29 23:21:01 -07:00
common.mk Clean up variables for temporary directory (#9961) 2022-05-06 16:38:06 -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
crash_test.mk Clean up variables for temporary directory (#9961) 2022-05-06 16:38:06 -07:00
DEFAULT_OPTIONS_HISTORY.md Add Options::DisableExtraChecks, clarify force_consistency_checks (#9363) 2022-01-18 17:31:03 -08:00
DUMP_FORMAT.md First version of rocksdb_dump and rocksdb_undump. 2015-06-19 16:24:36 -07:00
HISTORY.md Add a temporary option for user to opt-out enforcement of SingleDelete contract (#9983) 2022-05-16 15:44:59 -07:00
INSTALL.md Update supported VS versions in INSTALL.md (#9823) 2022-04-13 13:03:40 -07:00
issue_template.md Add Google Group to Issue Template 2020-01-28 14:40:37 -08:00
LANGUAGE-BINDINGS.md Update branch name to "main" in README/LANGUAGE_BINDINGS (#8727) 2021-09-01 15:26:34 -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 Put build size checking logic in Makefile (#9989) 2022-05-12 22:54:18 -07:00
PLUGINS.md Add pmem-rocksdb-plugin link in PLUGINs.md (#9934) 2022-05-12 22:02:28 -07:00
README.md README: De-list slack channel, list Google group (#9387) 2022-01-18 08:19:48 -08:00
ROCKSDB_LITE.md Fix remaining uses of "backupable" (#9792) 2022-04-05 09:52:33 -07:00
rocksdb.pc.in Generate pkg-config file via CMake (#9945) 2022-05-05 09:03:31 -07:00
src.mk Fork and simplify LRUCache for developing enhancements (#9917) 2022-05-03 12:32:02 -07:00
TARGETS Fork and simplify LRUCache for developing enhancements (#9917) 2022-05-03 12:32:02 -07:00
thirdparty.inc Fix build jemalloc api (#5470) 2019-06-24 17:40:32 -07:00
USERS.md Add Solana's RocksDB use case in USERS.md (#9558) 2022-02-16 09:23:01 -08:00
Vagrantfile Adding CentOS 7 Vagrantfile & build script 2018-02-26 15:27:17 -08:00
WINDOWS_PORT.md Update branch name in WINDOWS_PORT.md (#8745) 2021-09-01 19:26:39 -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/main/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.

Questions and discussions are welcome on the RocksDB Developers Public Facebook group and email list on Google Groups.

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.