andreacavalli/rocksdb
0
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity
A library that provides an embeddable, persistent key-value store for fast storage.
5,982 Commits 152 Branches 236 Tags 271 MiB
C++ 82.1%
Java 10.3%
C 2.5%
Python 1.7%
Perl 1.1%
Other 2.1%
c50e3750dc
Go to file
Islam AbdelRahman c50e3750dc Use a human readable size for level report 
Summary:
Current
```
** Compaction Stats [default] **
Level    Files   Size(MB} Score Read(GB}  Rn(GB} Rnp1(GB} Write(GB} Wnew(GB} Moved(GB} W-Amp Rd(MB/s} Wr(MB/s} Comp(sec} Comp(cnt} Avg(sec} KeyIn KeyDrop
----------------------------------------------------------------------------------------------------------------------------------------------------------
  L0      2/0      49.02   0.5      0.0     0.0      0.0       0.0      0.0       0.0   0.0      0.0     76.1         1         2    0.322       0      0
 Sum      2/0      49.02   0.0      0.0     0.0      0.0       0.0      0.0       0.0   1.0      0.0     76.1         1         2    0.322       0      0
 Int      0/0       0.00   0.0      0.0     0.0      0.0       0.0      0.0       0.0   1.0      0.0     76.1         1         2    0.322       0      0
```

New
```
** Compaction Stats [default] **
Level    Files   Size     Score Read(GB)  Rn(GB) Rnp1(GB) Write(GB) Wnew(GB) Moved(GB) W-Amp Rd(MB/s) Wr(MB/s) Comp(sec) Comp(cnt) Avg(sec) KeyIn Key
Closes https://github.com/facebook/rocksdb/pull/2055

Differential Revision: D4804576

Pulled By: IslamAbdelRahman

fbshipit-source-id: 719be6a
2017-04-05 17:24:19 -07:00
arcanist_util Fix arc setting for Facebook internal tools 2017-02-02 13:24:16 -08:00
buckifier Add buckifier script to github repo 2017-04-04 16:24:26 -07:00
build_tools Rework test running script. 2017-04-05 11:39:20 -07:00
cmake/modules Revert "[rocksdb][PR] CMake: more MinGW fixes" 2017-04-04 16:24:26 -07:00
coverage Fix coverage script 2014-11-03 14:53:00 -08:00
db Use a human readable size for level report 2017-04-05 17:24:19 -07:00
docs Blog post for releasing 5.2.1 2017-03-22 17:54:18 -07:00
examples Revert "[rocksdb][PR] CMake: more MinGW fixes" 2017-04-04 16:24:26 -07:00
hdfs Fix bug in UnScSigned-off-by: xh931076284 <931076284@qq.com> (#1336) 2016-09-14 10:17:34 -07:00
include/rocksdb add TimedEnv 2017-04-04 11:24:12 -07:00
java gflags has moved to GitHub 2017-03-31 10:09:21 -07:00
memtable update IterKey that can get user key and internal key explicitly 2017-04-04 14:24:20 -07:00
port Fix build with MinGW 2017-03-30 16:54:52 -07:00
table update IterKey that can get user key and internal key explicitly 2017-04-04 14:24:20 -07:00
third-party Fix build with MinGW 2017-03-30 16:54:52 -07:00
tools build db every monday 2017-04-05 12:24:21 -07:00
util Use a human readable size for level report 2017-04-05 17:24:19 -07:00
utilities Level-based L0->L0 compaction 2017-04-04 18:09:11 -07:00
.arcconfig Make rocksdb work with internal repo 2016-10-28 14:59:50 -07:00
.clang-format A script that automatically reformat affected lines 2014-01-14 12:21:24 -08:00
.gitignore Add buckifier script to github repo 2017-04-04 16:24:26 -07:00
.travis.yml Move db_test and external_sst_file_test out of Travis's MAC OS run 2017-03-06 09:39:15 -08:00
appveyor.yml Rework test running script. 2017-04-05 11:39:20 -07:00
AUTHORS Add AUTHORS file. Fix #203 2014-09-29 10:52:18 -07:00
CMakeLists.txt Divide db/db_impl.cc 2017-04-05 17:24:19 -07:00
CONTRIBUTING.md facebook accounts are not required for CLA signers 2014-07-08 05:57:54 -04:00
DEFAULT_OPTIONS_HISTORY.md Change the default of delayed slowdown value to 16MB/s 2017-02-01 20:39:17 -08:00
DUMP_FORMAT.md First version of rocksdb_dump and rocksdb_undump. 2015-06-19 16:24:36 -07:00
HISTORY.md Revert "delete fallocate with punch_hole" 2017-04-05 16:10:09 -07:00
INSTALL.md Add a notice on gflags installation in INSTALL.md 2017-04-04 16:39:25 -07:00
LANGUAGE-BINDINGS.md Adding Dlang to the list 2017-02-16 17:24:10 -08:00
LICENSE Updated all copyright headers to the new format. 2016-02-09 15:12:00 -08:00
Makefile Revert "[rocksdb][PR] CMake: more MinGW fixes" 2017-04-04 16:24:26 -07:00
PATENTS Update Patent Grant. 2015-04-13 10:33:43 +01:00
README.md Appveyor badge to show master branch 2016-07-26 13:54:08 -07:00
ROCKSDB_LITE.md Optimistic Transactions 2015-05-29 14:36:35 -07:00
src.mk Divide db/db_impl.cc 2017-04-05 17:24:19 -07:00
TARGETS Add buckifier script to github repo 2017-04-04 16:24:26 -07:00
thirdparty.inc Introduce XPRESS compresssion on Windows. (#1081) 2016-04-19 22:54:24 -07:00
USERS.md Update USERS.md add user Pika 2017-01-25 10:39:17 -08:00
Vagrantfile Update Vagrant file (test internal phabricator workflow) 2016-10-28 15:39:19 -07:00
WINDOWS_PORT.md Commit both PR and internal code review changes 2015-07-07 16:58:20 -07:00

README.md

RocksDB: A Persistent Key-Value Store for Flash and RAM Storage

Build Status 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/