SSDB是一个快速的用来存储十亿级别列表数据的开源 NoSQL 数据库。
项目地址:https://github.com/ideawu/ssdb
http://ssdb.io/
特性
- 替代 Redis 数据库, Redis 的 100 倍容量
- LevelDB 网络支持, 使用 C/C++ 开发
- Redis API 兼容, 支持 Redis 客户端
- 适合存储集合数据, 如 list, hash, zset…
- 客户端 API 支持的语言包括: C++、PHP、Python、Cpy、Java、NodeJS、Ruby、Go。
- 持久化的队列服务
- 主从复制, 负载均衡
性能
1000请求:
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
并发:
========== 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
在MacBook Pro 13 (Retina屏幕)上运行。
与redis的比较:
性能数据使用 ssdb-bench(SSDB) 和 redis-benchmark(Redis) 来获取。
架构
安装
下载压缩包,解压缩
wget --no-check-certificate https://github.com/ideawu/ssdb/archive/master.zip unzip master cd ssdb-master make 安装(可选) sudo make install 运行 ./ssdb-server ssdb.conf 或者以后台的方式运行 ./ssdb-server -d ssdb.conf ssdb命令行 ./tools/ssdb-cli -p 8888 停止ssdb-server kill `cat ./var/ssdb.pid`
使用
PHP
<?php include_once('SSDB.php'); try{ $ssdb = new SimpleSSDB('127.0.0.1', 8888); }catch(Exception $e){ die(__LINE__ . ' ' . $e->getMessage()); } $ret = $ssdb->set('key', 'value'); if($ret === false){ // error! } echo $ssdb->get('key');
Python
使用pyssdb
>>> import pyssdb >>> c = pyssdb.Client() >>> c.set('key', 'value') 1 >>> c.get('key') 'value' >>> c.hset('hash', 'item', 'value') 1 >>> c.hget('hash', 'item') 'value' >>> c.hget('hash', 'not exist') is None True >>> c.incr('counter') 1 >>> c.incr('counter') 2 >>> c.incr('counter') 3 >>> c.keys('a', 'z', 1) ['counter'] >>> c.keys('a', 'z', 10) ['counter', 'key']
Ruby
使用ssdb-rb
require "ssdb" ssdb = SSDB.new url: "ssdb://1.2.3.4:8889" ssdb.set("mykey", "hello world") # => true ssdb.get("mykey") # => "hello world" ssdb.batch do ssdb.set "foo", "5" ssdb.get "foo" ssdb.incr "foo" end # => [true, "5", 6]
Go
package main import ( "fmt" "os" "./ssdb" ) func main(){ ip := "127.0.0.1"; port := 8888; db, err := ssdb.Connect(ip, port); if(err != nil){ os.Exit(1); } var val interface{}; db.Set("a", "xxx"); val, err = db.Get("a"); fmt.Printf("%sn", val); db.Del("a"); val, err = db.Get("a"); fmt.Printf("%sn", val); db.Do("zset", "z", "a", 3); db.Do("multi_zset", "z", "b", -2, "c", 5, "d", 3); resp, err := db.Do("zrange", "z", 0, 10); if err != nil{ os.Exit(1); } if len(resp) % 2 != 1{ fmt.Printf("bad response"); os.Exit(1); } fmt.Printf("Status: %sn", resp[0]); for i:=1; i<len(resp); i+=2{ fmt.Printf(" %s : %3sn", resp[i], resp[i+1]); } return;
ngx_lua
使用lua-resty-ssdb
lua_package_path "/path/to/lua-resty-ssdb/lib/?.lua;;"; server { location /test { content_by_lua ' local ssdb = require "resty.ssdb" local db = ssdb:new() db:set_timeout(1000) -- 1 sec local ok, err = db:connect("127.0.0.1", 8888) if not ok then ngx.say("failed to connect: ", err) return end ok, err = db:set("dog", "an animal") if not ok then ngx.say("failed to set dog: ", err) return end ngx.say("set result: ", ok) local res, err = db:get("dog") if not res then ngx.say("failed to get dog: ", err) return end if res == ngx.null then ngx.say("dog not found.") return end ngx.say("dog: ", res) db:init_pipeline() db:set("cat", "Marry") db:set("horse", "Bob") db:get("cat") db:get("horse") local results, err = db:commit_pipeline() if not results then ngx.say("failed to commit the pipelined requests: ", err) return end for i, res in ipairs(results) do if type(res) == "table" then if not res[1] then ngx.say("failed to run command ", i, ": ", res[2]) else -- process the table value end else -- process the scalar value end end -- put it into the connection pool of size 100, -- with 0 idle timeout local ok, err = db:set_keepalive(0, 100) if not ok then ngx.say("failed to set keepalive: ", err) return end -- or just close the connection right away: -- local ok, err = db:close() -- if not ok then -- ngx.say("failed to close: ", err) -- return -- end '; } }
C++
#include <stdio.h> #include <stdlib.h> #include <string> #include <vector> #include "SSDB.h" int main(int argc, char **argv){ const char *ip = (argc >= 2)? argv[1] : "127.0.0.1"; int port = (argc >= 3)? atoi(argv[2]) : 8888; ssdb::Client *client = ssdb::Client::connect(ip, port); if(client == NULL){ printf("fail to connect to server!n"); return 0; } ssdb::Status s; s = client->set("k", "hello ssdb!"); if(s.ok()){ printf("k = hello ssdb!n"); }else{ printf("error!n"); } delete client; return 0; }
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