A library that provides an embeddable, persistent key-value store for fast storage.
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anand76 1fb3593f25 Fix a bug in looking up duplicate keys with MultiGet (#6953)
Summary:
When MultiGet is called with duplicate keys, and the key matches the
largest key in an SST file and the value type is merge, only the first
instance of the duplicate key is returned with correct results. This is
due to the incorrect assumption that if a key in a batch is equal to the
largest key in the file, the next key cannot be present in that file.

Tests:
Add a new unit test
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6953

Reviewed By: cheng-chang

Differential Revision: D21935898

Pulled By: anand1976

fbshipit-source-id: a2cc327a15150e23fd997546ca64d1c33021cb4c
2020-06-08 16:11:21 -07:00
.circleci pin image version in circle CI builds (#6876) 2020-05-23 21:23:27 -07:00
.github/workflows Clean up some code related to file checksums (#6861) 2020-05-21 08:12:51 -07:00
buckifier Directly use unit test tempalte buck (#6926) 2020-06-05 12:16:33 -07:00
build_tools Allow missing "unversioned" python, as in CentOS 8 (#6883) 2020-05-29 11:29:23 -07:00
cache Revert "Update googletest from 1.8.1 to 1.10.0 (#6808)" (#6923) 2020-06-03 15:55:03 -07:00
cmake Add find_dependency() in cmake config file. (#6791) 2020-05-12 21:18:29 -07:00
coverage Find the correct gcov (#6904) 2020-06-01 16:33:05 -07:00
db Fix a bug in looking up duplicate keys with MultiGet (#6953) 2020-06-08 16:11:21 -07:00
db_stress_tool Fix potential overflow of unsigned type in for loop (#6902) 2020-06-02 15:05:07 -07:00
docs Log warning for high bits/key in legacy Bloom filter (#6312) 2020-01-17 19:37:35 -08:00
env Close file to avoid file-descriptor leakage (#6936) 2020-06-04 14:21:15 -07:00
examples Add missing my_pid to fprintf in multi_process_example (#6731) 2020-05-08 20:49:33 -07:00
file Remove unnecessary inclusion of version_edit.h in env (#6952) 2020-06-07 21:56:55 -07:00
hdfs prototype status check enforcement (#6798) 2020-05-08 12:40:43 -07:00
include/rocksdb Remove unnecessary inclusion of version_edit.h in env (#6952) 2020-06-07 21:56:55 -07:00
java Add logs and stats in DeleteScheduler (#6927) 2020-06-05 09:43:04 -07:00
logging Fix info log source file display length (#5824) 2020-04-08 20:18:08 -07:00
memory C++20 compatibility (#6697) 2020-04-20 13:24:25 -07:00
memtable Fix more defects reported by Coverity Scan (#6935) 2020-06-04 15:35:08 -07:00
monitoring Add logs and stats in DeleteScheduler (#6927) 2020-06-05 09:43:04 -07:00
options Remove unnecessary inclusion of version_edit.h in env (#6952) 2020-06-07 21:56:55 -07:00
port Fix more defects reported by Coverity Scan (#6935) 2020-06-04 15:35:08 -07:00
table Remove unnecessary inclusion of version_edit.h in env (#6952) 2020-06-07 21:56:55 -07:00
test_util Check iterator status BlockBasedTableReader::VerifyChecksumInBlocks() (#6909) 2020-06-05 11:08:25 -07:00
third-party Revert "Update googletest from 1.8.1 to 1.10.0 (#6808)" (#6923) 2020-06-03 15:55:03 -07:00
tools Implement a new subcommand "identify" for sst_dump (#6943) 2020-06-08 13:58:28 -07:00
trace_replay Fix more defects reported by Coverity Scan (#6935) 2020-06-04 15:35:08 -07:00
util Fix ThreadLocalTest.SequentialReadWriteTest failure when running individually (#6929) 2020-06-04 11:44:09 -07:00
utilities Fix some defects reported by Coverity Scan (#6933) 2020-06-04 15:46:27 -07:00
.clang-format A script that automatically reformat affected lines 2014-01-14 12:21:24 -08:00
.gitignore Allow missing "unversioned" python, as in CentOS 8 (#6883) 2020-05-29 11:29:23 -07:00
.lgtm.yml Create lgtm.yml for LGTM.com C/C++ analysis (#4058) 2018-06-26 12:43:04 -07:00
.travis.yml Make sure core components not depend on gtest (#6921) 2020-06-03 18:22:14 -07:00
.watchmanconfig Added .watchmanconfig file to rocksdb repo (#5593) 2019-07-19 15:00:33 -07:00
appveyor.yml C++20 compatibility (#6697) 2020-04-20 13:24:25 -07:00
AUTHORS Update RocksDB Authors File 2017-10-18 14:42:10 -07:00
CMakeLists.txt Make DestroyDir destroy directories recursively (#6934) 2020-06-05 10:55:22 -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
defs.bzl Make testpilot recognize that these tests have coverage instrumentation 2020-03-20 11:23:23 -07:00
DUMP_FORMAT.md First version of rocksdb_dump and rocksdb_undump. 2015-06-19 16:24:36 -07:00
HISTORY.md Fix a bug in looking up duplicate keys with MultiGet (#6953) 2020-06-08 16:11:21 -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
issue_template.md Add Google Group to Issue Template 2020-01-28 14:40:37 -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 Make DestroyDir destroy directories recursively (#6934) 2020-06-05 10:55:22 -07:00
README.md Add Slack forum to README (#6773) 2020-04-30 11:00:28 -07:00
ROCKSDB_LITE.md Fix some typos in comments and docs. 2018-03-08 10:27:25 -08:00
src.mk Revert "Update googletest from 1.8.1 to 1.10.0 (#6808)" (#6923) 2020-06-03 15:55:03 -07:00
TARGETS Directly use unit test tempalte buck (#6926) 2020-06-05 12:16:33 -07:00
thirdparty.inc Fix build jemalloc api (#5470) 2019-06-24 17:40:32 -07:00
USERS.md Add YugabyteDB to USERS (#6786) 2020-05-06 10:28:29 -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

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/ and https://rocksdb.slack.com/

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.