Redis集群Twemproxy

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Redis集群Twemproxy
1、环境部署：

操作系统	CentOS 6.4
redis版本	redis-3.0.7
redis主服务器	192.168.1.111
redis从服务器1	192.168.1.112
redis从服务器2	192.168.1.113

有三台服务器，一台COS1安装twemproxy，另外两台COS2，COS3安装redis。

2. Cos1、Cos2和cos3安装redis


3. Cos1安装twemproxy：
3.1下载twemproxy(nutcracker)的安装包

1 2	[iyunv@cos1 ~]# cd /usr/src/    [iyunv@cos1src]# wget http://twemproxy.googlecode.com/files/nutcracker-0.2.4.tar.gz

3.2解压安装

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[iyunv@cos1 ~]# tar xf nutcracker-0.2.4.tar.gz [iyunv@cos1 ~]# cd nutcracker-0.2.4 [iyunv@cos1 nutcracker-0.2.4]#  ./configure --prefix=/opt/phpdba/nutcracker-0.2.4 [iyunv@cos1 nutcracker-0.2.4]# make && make install [iyunv@cos1 nutcracker-0.2.4]# cp -r conf scripts /opt/phpdba/nutcracker-0.2.4

3.3 配置环境变量

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[iyunv@cos1 ~]# cd /etc/profile.d/ [iyunv@cos1 profile.d]# vim twemproxy.sh #!/bin/sh #set Rutcracker environment export RUTCRACKER_HOME=/opt/phpdba/nutcracker-0.2.4 export PATH=$RUTCRACKER_HOME/bin:$PATH source twemporxy.sh

3.4 修改配置文件

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[iyunv@cos1 ~]# vim /opt/phpdba/nutcracker-0.2.4/conf/nutcracker.yml alpha:   listen: 127.0.0.1:22121   hash: fnv1a_64   distribution: ketama   auto_eject_hosts: true   redis: true   server_retry_timeout: 2000   server_failure_limit: 1   servers:    - 192.168.1.112:6379:1 server1    - 192.168.1.113:6379:1 server2

3.5检查语法

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[iyunv@cos1 ~]# nutcracker -c /opt/phpdba/nutcracker-0.2.4/conf/nutcracker.yml -t nutcracker: configuration file '/opt/phpdba/nutcracker-0.2.4/conf/nutcracker.yml' syntax is ok [iyunv@cos1 ~]# nutcracker -d -c /opt/phpdba/nutcracker-0.2.4/conf/nutcracker.yml

性能测试这里使用redis自带的redis-benchmark进行简单的性能测试，测试结果如下:
1.测试：
a.通过twemproxy测试：

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[iyunv@puppet01 ~]# redis-benchmark -h 127.0.0.1 -q -t set,get,incr,lpush,lpop,sadd,spop,lpush,lrange -c 100 -p 22121 SET: 62972.29 requests per second GET: 87336.24 requests per second INCR: 85034.02 requests per second LPUSH: 81699.35 requests per second LPOP: 82987.55 requests per second SADD: 85034.02 requests per second SPOP: 87412.59 requests per second LPUSH (needed to benchmark LRANGE): 80840.74 requests per second LRANGE_100 (first 100 elements): 28384.90 requests per second LRANGE_300 (first 300 elements): 9022.01 requests per second LRANGE_500 (first 450 elements): 4810.00 requests per second LRANGE_600 (first 600 elements): 3363.04 requests per second

b.通过对后端redis查看：

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[iyunv@puppet02 ~]# redis-cli 127.0.0.1:6379> KEYS * 1) "counter:__rand_int__" 127.0.0.1:6379> [iyunv@localhost ~]# redis-cli 127.0.0.1:6379> KEYS * 1) "mylist" 2) "key:__rand_int__"

发现我们的测试数据分片到了两个redis实例中。
2.查看键值分布

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[iyunv@puppet01 ~]# redis-cli info|grep db0 db0:keys=1,expires=0,avg_ttl=0 [iyunv@puppet02 ~]# redis-cli info|grep db0 db0:keys=1,expires=0,avg_ttl=0 [iyunv@puppet02 ~]# [iyunv@localhost ~]# redis-cli info|grep db0 db0:keys=2,expires=0,avg_ttl=0

测试结果:以基本的命令通过twemproxy性能有所下降;通过twemproxy分布基本平均。测试数据以业务测试为准。