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Cheng Chang 43aee93d2b Initialize scratch to nullptr explicitly to make clang analyzer happy (#6577) 
Summary:
`scratch` is not initialized in `Align` because it will be set outside of it. But clang analyzer is strict on initializing it before return.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6577

Test Plan: make analyze

Reviewed By: siying

Differential Revision: D20607303

Pulled By: cheng-chang

fbshipit-source-id: 2843d759345a057a8e122178d30b90deff0f9b2a
 		2020-03-23 20:15:27 -07:00
.circleci Migrate AppVeyor to CircleCI (#6518) 2020-03-13 21:58:51 -07:00
buckifier Buck config: Re-enable liburing under Linux (#6451) 2020-02-24 15:47:34 -08:00
build_tools Force Java version on Travis CI (#6512) 2020-03-12 12:24:51 -07:00
cache Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
cmake cmake: do not build tests for Release build and cleanups (#5916) 2019-12-13 12:48:06 -08:00
coverage Fix interpreter lines for files with python2-only syntax. 2019-07-09 10:51:37 -07:00
db Fix the MultiGet testing failure in Circleci (#6578) 2020-03-23 18:51:09 -07:00
db_stress_tool Remove GetSortedWalFiles/GetCurrentWalFile from the crash test (#6491) 2020-03-18 17:14:15 -07:00
docs Log warning for high bits/key in legacy Bloom filter (#6312) 2020-01-17 19:37:35 -08:00
env Attempt to recover from db with missing table files (#6334) 2020-03-20 19:30:48 -07:00
examples Use DestroyColumnFamilyHandle instead of directly deleting column family handle (#6505) 2020-03-12 14:30:46 -07:00
file Initialize scratch to nullptr explicitly to make clang analyzer happy (#6577) 2020-03-23 20:15:27 -07:00
hdfs Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
include/rocksdb Attempt to recover from db with missing table files (#6334) 2020-03-20 19:30:48 -07:00
java Use an Amazon S3 bucket for downloading deps (#6526) 2020-03-13 13:39:03 -07:00
logging Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
memory Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
memtable Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
monitoring Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
options Attempt to recover from db with missing table files (#6334) 2020-03-20 19:30:48 -07:00
port Support direct IO in RandomAccessFileReader::MultiRead (#6446) 2020-03-20 16:33:26 -07:00
table Support direct IO in RandomAccessFileReader::MultiRead (#6446) 2020-03-20 16:33:26 -07:00
test_util Introduce FaultInjectionTestFS to test fault File system instead of Env (#6414) 2020-03-04 12:35:05 -08:00
third-party Disable distributed mutex test for valgrind_test (#6553) 2020-03-18 09:24:31 -07:00
tools Remove GetSortedWalFiles/GetCurrentWalFile from the crash test (#6491) 2020-03-18 17:14:15 -07:00
trace_replay Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
util Change HashMap::Insert()'s value to a const reference (#6567) 2020-03-20 14:59:54 -07:00
utilities Support direct IO in RandomAccessFileReader::MultiRead (#6446) 2020-03-20 16:33:26 -07:00
.clang-format A script that automatically reformat affected lines 2014-01-14 12:21:24 -08:00
.gitignore Separate timestamp related test from db_basic_test (#6516) 2020-03-13 11:37:15 -07:00
.lgtm.yml Create lgtm.yml for LGTM.com C/C++ analysis (#4058) 2018-06-26 12:43:04 -07:00
.travis.yml Exclude more Travis builds for each pull request (#6557) 2020-03-20 13:20:19 -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 Attempt to recover from db with missing table files (#6334) 2020-03-20 19:30:48 -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 Attempt to recover from db with missing table files (#6334) 2020-03-20 19:30:48 -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 Support direct IO in RandomAccessFileReader::MultiRead (#6446) 2020-03-20 16:33:26 -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 Attempt to recover from db with missing table files (#6334) 2020-03-20 19:30:48 -07:00
USERS.md add user nebula (#6271) 2020-01-08 13:46:43 -08:00
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 Separate timestamp related test from db_basic_test (#6516) 2020-03-13 11:37:15 -07:00
defs.bzl Make testpilot recognize that these tests have coverage instrumentation 2020-03-20 11:23:23 -07:00
issue_template.md Add Google Group to Issue Template 2020-01-28 14:40:37 -08:00
src.mk Attempt to recover from db with missing table files (#6334) 2020-03-20 19:30:48 -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.