SSDB - A Redis compatible NoSQL database stored on disk
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'), key-list 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
Who's using SSDB?
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`
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
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
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
- Author's homepage
- Cpy Scripting Language
- Google LevelDB
- Lua ssdb client driver for the ngx_lua
- Yet another ssdb client for Python
- SSDB 中文文档
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
- 刘建辉, liujianhui@gongchang.com
- wendal(陈镇铖), wendal1985@gmail.com, http://wendal.net