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Yanqin Jin 5ef27dea33 Fix clang analyzer error (#5924)
Summary:
Without this PR, clang analyzer complains.
```
$USE_CLANG=1 make analyze
db/compaction/compaction_job_test.cc:161:20: warning: The left operand of '==' is a garbage value
      if (key.type == kTypeBlobIndex) {
                ~~~~~~~~ ^
                1 warning generated.
```

Test Plan (on devserver)
```
$USE_CLANG=1 make analyze
```
Pull Request resolved: https://github.com/facebook/rocksdb/pull/5924

Differential Revision: D17923226

Pulled By: riversand963

fbshipit-source-id: 9d1eb769b5e0de7cb3d89dc90d1cfa895db7fdc8
2019-10-14 22:14:24 -07:00
buckifier Change buckifier to support parameterized dependencies (#5648) 2019-08-02 10:55:17 -07:00
build_tools Remove deprecated RocksDBCommonHelper and cont_integration.sh (#5889) 2019-10-09 07:40:35 -07:00
cache Apply formatter to recent 200+ commits. (#5830) 2019-09-20 12:04:26 -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 Fix clang analyzer error (#5924) 2019-10-14 22:14:24 -07:00
docs Blog post for write_unprepared (#5711) 2019-08-15 14:41:13 -07:00
env Add Env::SanitizeEnvOptions (#5885) 2019-10-14 12:25:00 -07:00
examples Apply formatter to recent 200+ commits. (#5830) 2019-09-20 12:04:26 -07:00
file Apply formatter to recent 200+ commits. (#5830) 2019-09-20 12:04:26 -07:00
hdfs Add copyright headers per FB open-source checkup tool. (#5199) 2019-04-18 10:55:01 -07:00
include/rocksdb Add Env::SanitizeEnvOptions (#5885) 2019-10-14 12:25:00 -07:00
java Fix the rocksjava release Vagrant build on CentOS (#5901) 2019-10-10 17:21:18 -07:00
logging Apply formatter to recent 200+ commits. (#5830) 2019-09-20 12:04:26 -07:00
memory Charge block cache for cache internal usage (#5797) 2019-09-16 15:26:21 -07:00
memtable Charge block cache for cache internal usage (#5797) 2019-09-16 15:26:21 -07:00
monitoring Apply formatter to recent 200+ commits. (#5830) 2019-09-20 12:04:26 -07:00
options Apply formatter to recent 200+ commits. (#5830) 2019-09-20 12:04:26 -07:00
port Fix block cache ID uniqueness for Windows builds (#5844) 2019-10-11 18:19:31 -07:00
table Fix SeekForPrev bug with Partitioned Filters and Prefix (#5907) 2019-10-11 20:30:00 -07:00
test_util Apply formatter to recent 200+ commits. (#5830) 2019-09-20 12:04:26 -07:00
third-party Refactor/consolidate legacy Bloom implementation details (#5784) 2019-09-16 16:17:09 -07:00
tools Support non-TTL Puts for BlobDB in db_bench (#5921) 2019-10-14 17:49:20 -07:00
trace_replay Block cache analyzer: Support reading from human readable trace file. (#5679) 2019-08-09 13:13:54 -07:00
util bloom_test.cc: include <array> (#5920) 2019-10-14 15:38:31 -07:00
utilities Move blob_index.h to db/ (#5919) 2019-10-14 12:54:05 -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 Remove a webhook due to potential security concern (#5902) 2019-10-10 18:05:16 -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 filter_bench - a prelim tool for SST filter benchmarking (#5825) 2019-10-07 20:10:53 -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
DUMP_FORMAT.md First version of rocksdb_dump and rocksdb_undump. 2015-06-19 16:24:36 -07:00
HISTORY.md OnTableFileCreationCompleted use "(nil)" for empty file during flush (#5905) 2019-10-14 09:54:10 -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
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 filter_bench - a prelim tool for SST filter benchmarking (#5825) 2019-10-07 20:10:53 -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
TARGETS Divide file_reader_writer.h and .cc (#5803) 2019-09-16 10:33:51 -07:00
USERS.md Add avrio to USERS.md (#5748) 2019-09-15 21:29:09 -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
appveyor.yml New API to get all merge operands for a Key (#5604) 2019-08-06 14:26:44 -07:00
defs.bzl Change buckifier to support parameterized dependencies (#5648) 2019-08-02 10:55:17 -07:00
issue_template.md Add a template for issues 2017-09-29 11:41:28 -07:00
src.mk Divide file_reader_writer.h and .cc (#5803) 2019-09-16 10:33:51 -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

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 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.