A library that provides an embeddable, persistent key-value store for fast storage.
Go to file
奏之章 533e47709c Fix WriteBatchWithIndex with MergeOperator bug (#5577)
Summary:
```
TEST_F(WriteBatchWithIndexTest, TestGetFromBatchAndDBMerge3) {
  DB* db;
  Options options;

  options.create_if_missing = true;
  std::string dbname = test::PerThreadDBPath("write_batch_with_index_test");

  options.merge_operator = MergeOperators::CreateFromStringId("stringappend");

  DestroyDB(dbname, options);
  Status s = DB::Open(options, dbname, &db);
  assert(s.ok());

  ReadOptions read_options;
  WriteOptions write_options;
  FlushOptions flush_options;
  std::string value;

  WriteBatchWithIndex batch;

  ASSERT_OK(db->Put(write_options, "A", "1"));
  ASSERT_OK(db->Flush(flush_options, db->DefaultColumnFamily()));
  ASSERT_OK(batch.Merge("A", "2"));

  ASSERT_OK(batch.GetFromBatchAndDB(db, read_options, "A", &value));
  ASSERT_EQ(value, "1,2");

  delete db;
  DestroyDB(dbname, options);
}
```
Fix ASSERT in batch.GetFromBatchAndDB()
Pull Request resolved: https://github.com/facebook/rocksdb/pull/5577

Differential Revision: D16379847

fbshipit-source-id: b1320e24ec8e71350c525083cc0a16180a63f752
2019-09-05 17:52:14 -07:00
buckifier Change buckifier to support parameterized dependencies (#5648) 2019-08-02 10:55:17 -07:00
build_tools Port folly/synchronization/DistributedMutex to rocksdb (#5642) 2019-08-07 14:34:19 -07:00
cache Cleaned up and simplified LRU cache implementation (#5579) 2019-07-16 19:17:45 -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 Initialized pinned_pos_ and pinned_seq_pos_ in FragmentedRangeTombstoneIterator (#5720) 2019-09-05 17:30:29 -07:00
docs Blog post for write_unprepared (#5711) 2019-08-15 14:41:13 -07:00
env Fixed FALLOC_FL_KEEP_SIZE undefined (#5614) 2019-09-05 17:37:21 -07:00
examples Refactor trimming logic for immutable memtables (#5022) 2019-08-23 13:55:34 -07:00
file Persistent globally unique DB ID in manifest (#5725) 2019-09-03 08:52:24 -07:00
hdfs Add copyright headers per FB open-source checkup tool. (#5199) 2019-04-18 10:55:01 -07:00
include/rocksdb Adding DB::GetCurrentWalFile() API as a repliction/backup helper (#5765) 2019-09-04 12:10:17 -07:00
java Refactor trimming logic for immutable memtables (#5022) 2019-08-23 13:55:34 -07:00
logging Auto Roll Logger to add some extra checking to avoid segfault. (#5623) 2019-07-24 15:14:40 -07:00
memory remove unused #include to fix musl libc build (#5583) 2019-09-05 17:18:49 -07:00
memtable simplify include directive involving inttypes (#5402) 2019-06-06 13:56:07 -07:00
monitoring MOD: trim last space and comma in perf context and iostat context ToString() 2019-09-03 12:27:17 -07:00
options Persistent globally unique DB ID in manifest (#5725) 2019-09-03 08:52:24 -07:00
port fix sign compare warnings (#5651) 2019-07-30 14:12:54 -07:00
table Faster new DynamicBloom implementation (for memtable) (#5762) 2019-09-05 14:59:25 -07:00
test_util Refactor trimming logic for immutable memtables (#5022) 2019-08-23 13:55:34 -07:00
third-party Fix TSAN failures in DistributedMutex tests (#5684) 2019-08-14 17:01:31 -07:00
tools crash_test to skip compaction TTL for FIFO compaction. (#5749) 2019-08-27 17:55:37 -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 check fail on arm (#5745) 2019-09-05 17:03:24 -07:00
utilities Fix WriteBatchWithIndex with MergeOperator bug (#5577) 2019-09-05 17:52:14 -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 Switch Travis to Xenial build (#4789) 2019-06-17 10:20:02 -07:00
.watchmanconfig Added .watchmanconfig file to rocksdb repo (#5593) 2019-07-19 15:00:33 -07:00
appveyor.yml New API to get all merge operands for a Key (#5604) 2019-08-06 14:26:44 -07:00
AUTHORS Update RocksDB Authors File 2017-10-18 14:42:10 -07:00
CMakeLists.txt Copy/split PlainTableBloomV1 from DynamicBloom (refactor) (#5767) 2019-09-05 10:05:20 -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 Change buckifier to support parameterized dependencies (#5648) 2019-08-02 10:55:17 -07:00
DUMP_FORMAT.md First version of rocksdb_dump and rocksdb_undump. 2015-06-19 16:24:36 -07:00
HISTORY.md Faster new DynamicBloom implementation (for memtable) (#5762) 2019-09-05 14:59:25 -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 a template for issues 2017-09-29 11:41:28 -07:00
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 fix checking the '-march' flag (#5766) 2019-09-04 14:34:28 -07:00
README.md Add LevelDB repository link in the Readme 2019-04-01 18:19:09 -07:00
ROCKSDB_LITE.md Fix some typos in comments and docs. 2018-03-08 10:27:25 -08:00
src.mk Copy/split PlainTableBloomV1 from DynamicBloom (refactor) (#5767) 2019-09-05 10:05:20 -07:00
TARGETS Copy/split PlainTableBloomV1 from DynamicBloom (refactor) (#5767) 2019-09-05 10:05:20 -07:00
thirdparty.inc Fix build jemalloc api (#5470) 2019-06-24 17:40:32 -07:00
USERS.md Add Crux to USERS.md 2019-08-29 11:29:48 -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 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.