A library that provides an embeddable, persistent key-value store for fast storage.
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Peter Dillinger 442bd69222 Fix false NotFound from batched MultiGet with kHashSearch (#6821)
Summary:
The error is assigning KeyContext::s to NotFound status in a
table reader for a "not found in this table" case, which skips searching
in later tables, like only a delete should. (The hash search index iterator
is the only one that can return status NotFound even if Valid() == false.)

This was detected by intermittent failure in
MultiThreadedDBTest.MultiThreaded/5, a kHashSearch configuration.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6821

Test Plan: modified existing unit test to reproduce problem

Reviewed By: anand1976

Differential Revision: D21450469

Pulled By: pdillinger

fbshipit-source-id: 7478003684d637dbd491cdac81468041a791be2c
2020-05-08 08:46:12 -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 Revert the recent cache deleter change (#6620) 2020-03-31 16:21:36 -07:00
cmake cmake: do not build tests for Release build and cleanups (#5916) 2019-12-13 12:48:06 -08:00
coverage Update a few scripts to be python3 compatible (#6525) 2020-03-24 21:00:27 -07:00
db Fix false NotFound from batched MultiGet with kHashSearch (#6821) 2020-05-08 08:46:12 -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 env: Add clearerr() before repeating an interrupted file read (#6609) 2020-03-29 21:56:31 -07:00
examples Use DestroyColumnFamilyHandle instead of directly deleting column family handle (#6505) 2020-03-12 14:30:46 -07:00
file Fix result slice's address for direct io read (#6672) 2020-04-09 14:37:57 -07:00
hdfs Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
include/rocksdb Update to RocksDB 6.9.4 2020-04-30 21:39:38 -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 Fix a bug that crashes the service when write buffer manager fails to insert to block cache (#6619) 2020-04-01 11:38:30 -07:00
monitoring Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
options Fix a backporting error in options_settable_test.cc (#6718) 2020-04-16 13:55:05 -07:00
port Fix jemalloc forward declarations (#6613) 2020-04-07 16:24:40 -07:00
table Fix false NotFound from batched MultiGet with kHashSearch (#6821) 2020-05-08 08:46:12 -07:00
test_util Simplify migration to FileSystem API (#6552) 2020-03-23 21:54:21 -07:00
third-party Disable distributed mutex test for valgrind_test (#6553) 2020-03-18 09:24:31 -07:00
tools Add NewFileChecksumGenCrc32cFactory to file checksum (#6688) 2020-04-15 16:23:21 -07:00
trace_replay Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
util Add NewFileChecksumGenCrc32cFactory to file checksum (#6688) 2020-04-15 16:23:21 -07:00
utilities Log CompactOnDeletionCollectorFactory parameters on DB open (#6686) 2020-04-14 16:01:38 -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
appveyor.yml Separate timestamp related test from db_basic_test (#6516) 2020-03-13 11:37:15 -07:00
AUTHORS Update RocksDB Authors File 2017-10-18 14:42:10 -07:00
CMakeLists.txt Add blob files to VersionStorageInfo/VersionBuilder (#6597) 2020-03-26 18:51:53 -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
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 false NotFound from batched MultiGet with kHashSearch (#6821) 2020-05-08 08:46:12 -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 Update RocksJava static version of bzip2 (#6714) 2020-04-16 16:02:28 -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
src.mk Add blob files to VersionStorageInfo/VersionBuilder (#6597) 2020-03-26 18:51:53 -07:00
TARGETS Add blob files to VersionStorageInfo/VersionBuilder (#6597) 2020-03-26 18:51:53 -07:00
thirdparty.inc Fix build jemalloc api (#5470) 2019-06-24 17:40:32 -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

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.