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leipeng 40d69b59ad DBImpl::MultiGet: delete unused var `superversions_to_delete` (#11395) 
Summary:
In db_impl.cc DBImpl::MultiGet: delete unused var `superversions_to_delete`

Pull Request resolved: https://github.com/facebook/rocksdb/pull/11395

Reviewed By: ajkr

Differential Revision: D45240896

Pulled By: cbi42

fbshipit-source-id: 0fff99b0d794b6f6d4aadee6036bddd6cb19eb31
 		2023-04-25 10:46:29 -07:00
.circleci Revert enabling IO uring in db_stress (#11242) 2023-02-21 12:53:55 -08:00
.github/workflows ci: add GitHub token permissions for workflow (#10549) 2022-10-04 12:10:30 -07:00
buckifier Cleanup, improve, stress test LockWAL() (#11143) 2023-01-30 22:52:30 -08:00
build_tools Remove platform009 and default to platform010 (#11333) 2023-03-30 09:56:37 -07:00
cache fix bad implementation of ShardedCache::GetOccupancyCount (#11325) 2023-04-07 18:28:19 -07:00
cmake gcc-11 and cmake related cleanup (#9286) 2021-12-17 17:04:35 -08:00
coverage Remove platform009 and default to platform010 (#11333) 2023-03-30 09:56:37 -07:00
db DBImpl::MultiGet: delete unused var `superversions_to_delete` (#11395) 2023-04-25 10:46:29 -07:00
db_stress_tool Add back io_uring stress test hack with DbStressFSWrapper for FS not supporting read async (#11404) 2023-04-24 15:14:23 -07:00
docs Remove docs/Gemfile.lock and update github-pages version (#11173) 2023-02-14 12:17:23 -08:00
env Ignore async_io ReadOption if FileSystem doesn't support it (#11296) 2023-03-17 14:57:09 -07:00
examples Remove RocksDB LITE (#11147) 2023-01-27 13:14:19 -08:00
file Group rocksdb.sst.read.micros stat by IOActivity flush and compaction (#11288) 2023-04-21 09:07:18 -07:00
fuzz Add some missing headers (#10519) 2022-08-11 12:45:50 -07:00
include/rocksdb Start version 8.3 (#11405) 2023-04-24 13:37:56 -07:00
java Group rocksdb.sst.read.micros stat by IOActivity flush and compaction (#11288) 2023-04-21 09:07:18 -07:00
logging Disabling some IO error assertion in EnvLogger (#11314) 2023-03-20 13:23:29 -07:00
memory Remove RocksDB LITE (#11147) 2023-01-27 13:14:19 -08:00
memtable Add `SetAllowStall()` (#11335) 2023-03-30 09:43:33 -07:00
microbench Group rocksdb.sst.read.micros stat by IOActivity flush and compaction (#11288) 2023-04-21 09:07:18 -07:00
monitoring Changes and enhancements to compression stats, thresholds (#11388) 2023-04-21 21:57:40 -07:00
options Changes and enhancements to compression stats, thresholds (#11388) 2023-04-21 21:57:40 -07:00
plugin Add initial CMake support to plugin (#9214) 2021-11-30 17:16:53 -08:00
port Ignore async_io ReadOption if FileSystem doesn't support it (#11296) 2023-03-17 14:57:09 -07:00
table Fix compression tests^2 (#11403) 2023-04-24 09:33:33 -07:00
test_util Fix compression tests when snappy not available (#11396) 2023-04-22 12:41:36 -07:00
third-party fix optimization-disabled test builds with platform010 (#11361) 2023-04-10 13:59:44 -07:00
tools Start version 8.3 (#11405) 2023-04-24 13:37:56 -07:00
trace_replay Fix error maybe-uninitialized #11100 (#11101) 2023-01-19 13:59:48 -08:00
util Changes and enhancements to compression stats, thresholds (#11388) 2023-04-21 21:57:40 -07:00
utilities Group rocksdb.sst.read.micros stat by IOActivity flush and compaction (#11288) 2023-04-21 09:07:18 -07:00
.clang-format A script that automatically reformat affected lines 2014-01-14 12:21:24 -08:00
.gitignore Git ignore .clangd/ (#10817) 2022-10-17 08:33:58 -07:00
.lgtm.yml Create lgtm.yml for LGTM.com C/C++ analysis (#4058) 2018-06-26 12:43:04 -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 New stat rocksdb.{cf|db}-write-stall-stats exposed in a structural way (#11300) 2023-03-18 09:51:58 -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 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 Start version 8.3 (#11405) 2023-04-24 13:37:56 -07:00
INSTALL.md Add instructions for installing googlebenchmark (#11282) 2023-03-09 13:11:00 -08:00
LANGUAGE-BINDINGS.md Add grocksdb in Go language bindings (#10498) 2022-08-23 15:02:10 -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 util/ribbon_test.cc: avoid ambiguous reversed operator error in c++20 (#11371) 2023-04-12 13:24:34 -07:00
PLUGINS.md Add pmem-rocksdb-plugin link in PLUGINs.md (#9934) 2022-05-12 22:02:28 -07:00
README.md Remove deprecated integration tests from README.md (#11354) 2023-04-07 16:52:50 -07:00
TARGETS New stat rocksdb.{cf|db}-write-stall-stats exposed in a structural way (#11300) 2023-03-18 09:51:58 -07:00
USERS.md Add PaxosStore to USERS (#11357) 2023-04-07 16:55:35 -07:00
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
common.mk Clean up variables for temporary directory (#9961) 2022-05-06 16:38:06 -07:00
crash_test.mk Allow a custom DB cleanup command to be passed to db_crashtest.py (#10883) 2022-10-27 19:47:01 -07:00
issue_template.md Add Google Group to Issue Template 2020-01-28 14:40:37 -08:00
rocksdb.pc.in build: fix pkg-config file generation (#9953) 2022-05-30 12:46:40 -07:00
src.mk New stat rocksdb.{cf|db}-write-stall-stats exposed in a structural way (#11300) 2023-03-18 09:51:58 -07:00
thirdparty.inc Fix build jemalloc api (#5470) 2019-06-24 17:40:32 -07:00

README.md

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

CircleCI 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 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.