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GuKaifeng c967436453 remove redundant assignment code for member state (#9665)
Summary:
Remove redundant assignment code for member `state` in the constructor of `ImmutableDBOptions`.
There are two identical and redundant statements `stats = statistics.get();` in lines 740 and 748 of the code.
This commit removed the line 740.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/9665

Reviewed By: ajkr

Differential Revision: D34686649

Pulled By: riversand963

fbshipit-source-id: 8f246ece382b6845528f4e2c843ce09bb66b2b0f
2022-03-08 11:03:56 -08:00
.circleci Remove remaining SKIP_LINK=1 in circleci config (#9669) 2022-03-07 15:23:25 -08:00
.github/workflows Use released clang-format instead of the one from dev branch (#9646) 2022-03-01 10:51:38 -08:00
buckifier regenerate config jsons, reduce noise (#9644) 2022-03-01 15:09:45 -08:00
build_tools Reenable s390x platform_dependent travis job (#9631) 2022-03-01 13:50:41 -08:00
cache typo(clock_cache) fix incomplete message typo (#9638) 2022-03-01 10:57:09 -08:00
cmake gcc-11 and cmake related cleanup (#9286) 2021-12-17 17:04:35 -08:00
coverage Remove asan_symbolize.py for internal asan build (#8737) 2021-09-07 15:39:11 -07:00
db `compression_per_level` should be used for flush and changeable (#9658) 2022-03-07 18:06:19 -08:00
db_stress_tool Avoid .trash handling race in db_stress Checkpoint (#9673) 2022-03-08 08:36:25 -08:00
docs Update Githubpages version (#9670) 2022-03-07 14:48:06 -08:00
env Fix issue #9627 (#9657) 2022-03-07 11:39:31 -08:00
examples Remove BlockBasedTableOptions.hash_index_allow_collision (#9454) 2022-03-01 13:58:02 -08:00
file Avoid usage of ReopenWritableFile in db_stress (#9649) 2022-03-04 10:30:10 -08:00
fuzz Fix compilation errors and add fuzzers to CircleCI (#9420) 2022-02-01 10:32:15 -08:00
include/rocksdb `compression_per_level` should be used for flush and changeable (#9658) 2022-03-07 18:06:19 -08:00
java Fix RocksJava releases for macOS (#9662) 2022-03-07 10:50:52 -08:00
logging Use system-wide thread ID in info log lines (#9164) 2021-11-12 19:46:06 -08:00
memory Return different Status based on ObjectRegistry::NewObject calls (#9333) 2022-02-11 05:11:24 -08:00
memtable Remove using namespace (#9369) 2022-01-12 09:31:12 -08:00
microbench regenerate config jsons, reduce noise (#9644) 2022-03-01 15:09:45 -08:00
monitoring Dedicate cacheline for DB mutex (#9637) 2022-02-27 11:36:54 -08:00
options remove redundant assignment code for member state (#9665) 2022-03-08 11:03:56 -08:00
plugin Add initial CMake support to plugin (#9214) 2021-11-30 17:16:53 -08:00
port Require C++17 (#9481) 2022-02-04 17:13:10 -08:00
table `compression_per_level` should be used for flush and changeable (#9658) 2022-03-07 18:06:19 -08:00
test_util Remove BlockBasedTableOptions.hash_index_allow_collision (#9454) 2022-03-01 13:58:02 -08:00
third-party Work around some new clang-analyze failures (#9515) 2022-02-07 18:24:36 -08:00
tools Remove BlockBasedTableOptions.hash_index_allow_collision (#9454) 2022-03-01 13:58:02 -08:00
trace_replay Added `TraceOptions::preserve_write_order` (#9334) 2021-12-28 15:04:26 -08:00
util Fix corruption error when compressing blob data with zlib. (#9572) 2022-03-02 16:35:21 -08:00
utilities Test refactoring for Backups+Temperatures (#9655) 2022-03-04 12:32:30 -08:00
.clang-format A script that automatically reformat affected lines 2014-01-14 12:21:24 -08:00
.gitignore gitignore cmake-build-* for CLion integration (#7933) 2021-02-19 13:43:15 -08:00
.lgtm.yml Create lgtm.yml for LGTM.com C/C++ analysis (#4058) 2018-06-26 12:43:04 -07:00
.travis.yml Reenable s390x platform_dependent travis job (#9631) 2022-03-01 13:50:41 -08:00
.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 Streaming Compression API for WAL compression. (#9619) 2022-02-23 23:45:04 -08:00
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 `compression_per_level` should be used for flush and changeable (#9658) 2022-03-07 18:06:19 -08:00
INSTALL.md Clarify Google benchmark < 1.6.0 in INSTALL.md (#9505) 2022-02-07 10:00:46 -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 Fix RocksJava releases for macOS (#9662) 2022-03-07 10:50:52 -08:00
PLUGINS.md Move RADOS support to separate repo (#9206) 2022-01-24 22:50:07 -08:00
README.md README: De-list slack channel, list Google group (#9387) 2022-01-18 08:19:48 -08:00
ROCKSDB_LITE.md Fix some typos in comments and docs. 2018-03-08 10:27:25 -08:00
TARGETS regenerate config jsons, reduce noise (#9644) 2022-03-01 15:09:45 -08:00
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
issue_template.md Add Google Group to Issue Template 2020-01-28 14:40:37 -08:00
src.mk Streaming Compression API for WAL compression. (#9619) 2022-02-23 23:45:04 -08:00
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

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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.