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Yi Wu cf852fdf55 Minor fix: single delete a blob value is not a mismatch (#4848)
Summary:
In compaction iterator, if the next value of single delete is a blob value, it should not treated as mismatch. This is only a minor fix and doesn't affect correctness.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/4848

Differential Revision: D13585812

Pulled By: yiwu-arbug

fbshipit-source-id: 0ff6223fa03a644ac9fd8a2d77f9d6711d0a62b0
2019-01-04 16:31:02 -08:00
buckifier Detect if Jemalloc is linked with the binary (#4844) 2019-01-03 16:30:12 -08:00
build_tools Fix spelling errors (#4827) 2019-01-02 11:17:57 -08:00
cache Revert "Move MemoryAllocator option from Cache to BlockBasedTableOpti… (#4697) 2018-11-21 11:29:57 -08:00
cmake Make FindZLIB consistent with official definitions (#4823) 2019-01-02 12:49:57 -08:00
coverage Remove unused imports, from python scripts. (#4057) 2018-06-26 12:43:04 -07:00
db Minor fix: single delete a blob value is not a mismatch (#4848) 2019-01-04 16:31:02 -08:00
docs Insane line length detected (#4813) 2018-12-21 14:54:34 -08:00
env Introduce a CPU time counter in perf_context (#4741) 2018-12-20 12:03:44 -08:00
examples Pin top-level index on partitioned index/filter blocks (#4037) 2018-06-22 15:27:46 -07:00
hdfs Update all unique/shared_ptr instances to be qualified with namespace std (#4638) 2018-11-09 11:19:58 -08:00
include/rocksdb tools: use provided options instead of the default (#4839) 2019-01-03 11:23:49 -08:00
java Fix typos in comments (#4819) 2018-12-26 09:43:56 -08:00
memtable WriteBufferManger doens't cost to cache if no limit is set (#4695) 2018-11-18 16:55:43 -08:00
monitoring Add a new per level counter for block cache hit (#4796) 2018-12-21 13:20:05 -08:00
options Concurrent task limiter for compaction thread control (#4332) 2018-12-13 13:18:28 -08:00
port Detect if Jemalloc is linked with the binary (#4844) 2019-01-03 16:30:12 -08:00
table fix accounting for range tombstones in TableProperties (#4841) 2019-01-02 15:08:53 -08:00
third-party Support pragma once in all header files and cleanup some warnings (#4339) 2018-09-05 18:13:31 -07:00
tools tools: use provided options instead of the default (#4839) 2019-01-03 11:23:49 -08:00
util Detect if Jemalloc is linked with the binary (#4844) 2019-01-03 16:30:12 -08:00
utilities Fix spelling errors (#4827) 2019-01-02 11:17:57 -08:00
.clang-format
.gitignore RocksDB Trace Analyzer (#4091) 2018-08-13 11:44:02 -07:00
.lgtm.yml Create lgtm.yml for LGTM.com C/C++ analysis (#4058) 2018-06-26 12:43:04 -07:00
.travis.yml Fix printf formatting on MacOS (#4533) 2018-10-19 14:46:09 -07:00
AUTHORS Update RocksDB Authors File 2017-10-18 14:42:10 -07:00
CMakeLists.txt Make FindZLIB consistent with official definitions (#4823) 2019-01-02 12:49:57 -08:00
CODE_OF_CONDUCT.md Add Code of Conduct 2017-12-05 18:42:35 -08:00
CONTRIBUTING.md Add Code of Conduct 2017-12-05 18:42:35 -08:00
COPYING
DEFAULT_OPTIONS_HISTORY.md
DUMP_FORMAT.md
HISTORY.md Fix point lookup on range tombstone sentinel endpoint (#4829) 2019-01-04 11:24:08 -08:00
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 Added PingCaps Rust RocksDB and ObjectiveRocks (#4065) 2018-06-27 15:43:21 -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 building RocksDB for iOS (#4687) 2018-12-19 14:13:55 -08:00
README.md Create lgtm.yml for LGTM.com C/C++ analysis (#4058) 2018-06-26 12:43:04 -07:00
ROCKSDB_LITE.md Fix some typos in comments and docs. 2018-03-08 10:27:25 -08:00
TARGETS Detect if Jemalloc is linked with the binary (#4844) 2019-01-03 16:30:12 -08:00
USERS.md Adding IOTA Foundation to USERS.MD (#4436) 2018-10-02 10:03:46 -07:00
Vagrantfile Adding CentOS 7 Vagrantfile & build script 2018-02-26 15:27:17 -08:00
WINDOWS_PORT.md Add GCC 8 to Travis (#3433) 2018-07-13 10:58:06 -07:00
appveyor.yml Add RocksJava build to AppVeyor 2019-01-03 10:44:44 -08:00
issue_template.md Add a template for issues 2017-09-29 11:41:28 -07:00
src.mk Remove v1 RangeDelAggregator (#4778) 2018-12-17 17:33:46 -08:00
thirdparty.inc Provide a way to override windows memory allocator with jemalloc for ZSTD 2018-06-04 12:12:48 -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 specially 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.