A library that provides an embeddable, persistent key-value store for fast storage.
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sdong f5b951f7b6 Fix wrong info log printing for num_range_deletions (#5617)
Summary:
num_range_deletions printing is wrong in this log line:

2019/07/18-12:59:15.309271 7f869f9ff700 EVENT_LOG_v1 {"time_micros": 1563479955309228, "cf_name": "5", "job": 955, "event": "table_file_creation", "file_number": 34579, "file_size": 2239842, "table_properties": {"data_size": 1988792, "index_size": 3067, "index_partitions": 0, "top_level_index_size": 0, "index_key_is_user_key": 0, "index_value_is_delta_encoded": 1, "filter_size": 170821, "raw_key_size": 1951792, "raw_average_key_size": 16, "raw_value_size": 1731720, "raw_average_value_size": 14, "num_data_blocks": 199, "num_entries": 121987, "num_deletions": 15184, "num_merge_operands": 86512, "num_range_deletions": 86512, "format_version": 0, "fixed_key_len": 0, "filter_policy": "rocksdb.BuiltinBloomFilter", "column_family_name": "5", "column_family_id": 5, "comparator": "leveldb.BytewiseComparator", "merge_operator": "PutOperator", "prefix_extractor_name": "rocksdb.FixedPrefix.7", "property_collectors": "[]", "compression": "ZSTD", "compression_options": "window_bits=-14; level=32767; strategy=0; max_dict_bytes=0; zstd_max_train_bytes=0; enabled=0; ", "creation_time": 1563479951, "oldest_key_time": 0, "file_creation_time": 1563479954}}

It actually prints "num_merge_operands" number. Fix it.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/5617

Test Plan: Just build.

Differential Revision: D16453110

fbshipit-source-id: fc1024b3cd5650312ed47a1379f0d2cf8b2d8a8f
2019-07-23 19:38:16 -07:00
buckifier Add support for loading dynamic libraries into the RocksDB environment (#5281) 2019-06-03 23:02:56 -07:00
build_tools Upload db directory during cleanup for certain tests (#5554) 2019-07-10 11:29:55 -07:00
cache Cleaned up and simplified LRU cache implementation (#5579) 2019-07-16 19:17:45 -07:00
cmake Make FindZLIB consistent with official definitions (#4823) 2019-01-02 12:49:57 -08:00
coverage Fix interpreter lines for files with python2-only syntax. 2019-07-09 10:51:37 -07:00
db Fix wrong info log printing for num_range_deletions (#5617) 2019-07-23 19:38:16 -07:00
docs Text lint all .gitignore files 2019-05-15 11:37:27 -07:00
env The ObjectRegistry class replaces the Registrar and NewCustomObjects.… (#5293) 2019-07-23 17:13:05 -07:00
examples simplify include directive involving inttypes (#5402) 2019-06-06 13:56:07 -07:00
file Fix bugs in DBWALTest.kTolerateCorruptedTailRecords triggered by #5520 (#5550) 2019-07-09 11:18:32 -07:00
hdfs Add copyright headers per FB open-source checkup tool. (#5199) 2019-04-18 10:55:01 -07:00
include/rocksdb The ObjectRegistry class replaces the Registrar and NewCustomObjects.… (#5293) 2019-07-23 17:13:05 -07:00
java Add an option to put first key of each sst block in the index (#5289) 2019-06-24 20:54:04 -07:00
logging Implemented a file logger that uses WritableFileWriter (#5491) 2019-07-09 16:27:22 -07:00
memory Move some logging related files to logging/ (#5387) 2019-05-31 17:23:59 -07:00
memtable simplify include directive involving inttypes (#5402) 2019-06-06 13:56:07 -07:00
monitoring Exclude StatsHistoryTest.ForceManualFlushStatsCF test from lite mode (#5529) 2019-07-01 16:37:08 -07:00
options The ObjectRegistry class replaces the Registrar and NewCustomObjects.… (#5293) 2019-07-23 17:13:05 -07:00
port Fix regression - 100% CPU - Regression for Windows 7 (#5557) 2019-07-15 12:19:49 -07:00
table Move the uncompression dictionary object out of the block cache (#5584) 2019-07-23 16:01:44 -07:00
test_util Added support for sequential read-ahead file (#5580) 2019-07-16 18:21:18 -07:00
third-party/gtest-1.7.0/fused-src/gtest remove bundled but unused fbson library (#5108) 2019-03-26 16:37:52 -07:00
tools The ObjectRegistry class replaces the Registrar and NewCustomObjects.… (#5293) 2019-07-23 17:13:05 -07:00
trace_replay Block cache analyzer: Compute correlation of features and human readable trace file. (#5596) 2019-07-22 17:51:34 -07:00
util Move the uncompression dictionary object out of the block cache (#5584) 2019-07-23 16:01:44 -07:00
utilities The ObjectRegistry class replaces the Registrar and NewCustomObjects.… (#5293) 2019-07-23 17:13:05 -07:00
.clang-format A script that automatically reformat affected lines 2014-01-14 12:21:24 -08:00
.gitignore Added .watchmanconfig file to rocksdb repo (#5593) 2019-07-19 15:00:33 -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 Also build compression libraries on AppVeyor CI (#5226) 2019-06-24 10:41:07 -07:00
AUTHORS Update RocksDB Authors File 2017-10-18 14:42:10 -07:00
CMakeLists.txt The ObjectRegistry class replaces the Registrar and NewCustomObjects.… (#5293) 2019-07-23 17:13:05 -07:00
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 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 Add copyright headers per FB open-source checkup tool. (#5199) 2019-04-18 10:55:01 -07:00
DUMP_FORMAT.md First version of rocksdb_dump and rocksdb_undump. 2015-06-19 16:24:36 -07:00
HISTORY.md The ObjectRegistry class replaces the Registrar and NewCustomObjects.… (#5293) 2019-07-23 17:13:05 -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 Parallelize file_reader_writer_test in order to reduce timeouts 2019-07-23 11:50:10 -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 The ObjectRegistry class replaces the Registrar and NewCustomObjects.… (#5293) 2019-07-23 17:13:05 -07:00
TARGETS The ObjectRegistry class replaces the Registrar and NewCustomObjects.… (#5293) 2019-07-23 17:13:05 -07:00
thirdparty.inc Fix build jemalloc api (#5470) 2019-06-24 17:40:32 -07:00
USERS.md Add Alluxio to USERS.md (#5434) 2019-06-13 12:25:26 -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.