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README
BSD-3-Clause

SSDB - A fast NoSQL database for storing big list of data

Author Platform NoSQL License

SSDB is a high performace key-value(key-string, key-zset, key-hashmap) NoSQL database, an alternative to Redis.

SSDB is stable, production-ready and is widely used by many Internet companies including QIHU 360.

Features

  • LevelDB client-server support, written in C/C++
  • Designed to store collection data
  • Persistent key-value, key-zset, key-map('hashmap') storage
  • Redis clients are supported
  • Client API supports including C++, PHP, Python, Cpy, Java, nodejs, Ruby, Go(see all)
  • Persistent queue service
  • Replication(master-slave), load balance
  • GUI administration tool(phpssdbadmin)
  • Built-in CLI nagios self-checks

PHP client API example

<?php
require_once('SSDB.php');
$ssdb = new SimpleSSDB('127.0.0.1', 8888);
$resp = $ssdb->set('key', '123');
$resp = $ssdb->get('key');
echo $resp; // output: 123

More...

Who's using SSDB?

all-ssdb-users

And more...

Documentation

Compile and Install

$ wget --no-check-certificate https://github.com/ideawu/ssdb/archive/master.zip
$ unzip master
$ cd ssdb-master
$ make
$ #optional, install ssdb in /usr/local/ssdb
$ sudo make install

# start master
$ ./ssdb-server ssdb.conf

# or start as daemon
$ ./ssdb-server -d ssdb.conf

# ssdb command line
$ ./tools/ssdb-cli -p 8888

# stop ssdb-server
$ ./ssdb-server ssdb.conf -s stop
 # for older version
$ kill `cat ./var/ssdb.pid`

See Compile and Install wiki

Performance

Typical performance

Total 1000 requests.

writeseq  :    0.546 ms/op      178.7 MB/s
writerand :    0.519 ms/op      188.1 MB/s
readseq   :    0.304 ms/op      321.6 MB/s
readrand  :    0.310 ms/op      315.0 MB/s

SSDB vs Redis

Benchmark vs Redis

View full SSDB vs Redis benchmark charts...

Concurrency benchmark

========== set ==========
qps: 44251, time: 0.226 s
========== get ==========
qps: 55541, time: 0.180 s
========== del ==========
qps: 46080, time: 0.217 s
========== hset ==========
qps: 42338, time: 0.236 s
========== hget ==========
qps: 55601, time: 0.180 s
========== hdel ==========
qps: 46529, time: 0.215 s
========== zset ==========
qps: 37381, time: 0.268 s
========== zget ==========
qps: 41455, time: 0.241 s
========== zdel ==========
qps: 38792, time: 0.258 s

Run on a 2013 MacBook Pro 13 inch with Retina display.

Architecture

ssdb architecture

Windows executable

Download ssdb-server.exe from here: https://github.com/ideawu/ssdb-bin

SSDB library for iOS

make ios
# ls ios/
include/ libleveldb-ios.a libsnappy-ios.a libssdb-ios.a libutil-ios.a

Drag the static libraies files into your iOS project. Then add ios/include to your iOS project's Header Search Paths, which is set in Build Settings.

Links

Changes made to LevelDB

See Changes-Made-to-LevelDB wiki

LICENSE

SSDB is licensed under New BSD License, a very flexible license to use.

Authors

@ideawu

Thanks

Copyright (c) 2013 SSDB Authors All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. 3. Neither the name of the SSDB nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

About

SSDB 是一个 C/C++ 语言开发的高性能 NoSQL 数据库, 支持 zset(sorted set), map(hash), kv, list 等数据结构, 用来替代或者与 Redis 配合存储十亿级别列表的数据. expand collapse
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