Redis集群的搭建

搭建集群需要使用到官方提供的ruby脚本。

需要安装ruby的环境。

安装ruby

yum -y install ruby

yum -y install rubygems

 

redis集群管理工具redis-trib.rb，此文件在redis源码的src目录中

 

脚本需要的ruby包：

下载地址：

https://rubygems.org/gems/redis/versions/3.0.0

需要上传到linux服务。

安装ruby的包：

gem install redis-3.0.0.gem

[root@bogon ~]# gem install redis-3.0.0.gem

Successfully installed redis-3.0.0

1 gem installed

Installing ri documentation for redis-3.0.0...

Installing RDoc documentation for redis-3.0.0...

 

集群的搭建

第一步：创建6个redis实例，端口号从7001~7006，实际上就是复制单机版六份到/usr/local/redis/redisCluster目录中。

第二步：修改redis的配置文件

1、修改端口号

2、打开cluster-enable前面的注释。

3、设置redis绑定的IP地址：

bind 192.168.10.101

第三步：把创建集群的ruby脚本redis-trib.rb复制到/usr/local/redis/rediscluster目录下。

第四步：启动6个redis实例

使用脚本启动：

touch start-cluster.sh

chmod +x start-cluster.sh

touch stop-cluster.sh

chmod +x stop-cluster.sh

start-cluster.sh

#!/bin/bash cd /usr/local/redis/redisCluster/redis1/ ./redis-server redis.conf cd /usr/local/redis/redisCluster/redis2/ ./redis-server redis.conf cd /usr/local/redis/redisCluster/redis3/ ./redis-server redis.conf cd /usr/local/redis/redisCluster/redis4/ ./redis-server redis.conf cd /usr/local/redis/redisCluster/redis5/ ./redis-server redis.conf cd /usr/local/redis/redisCluster/redis6/ ./redis-server redis.conf

stop-cluster.sh

#!/bin/bash cd /usr/local/redis/redisCluster/redis1 ./redis-cli -h 192.168.10.11 -p 7001 shutdown cd /usr/local/redis/redisCluster/redis2 ./redis-cli -h 192.168.10.11 -p 7002 shutdown cd /usr/local/redis/redisCluster/redis3 ./redis-cli -h 192.168.10.11 -p 7003 shutdown cd /usr/local/redis/redisCluster/redis4 ./redis-cli -h 192.168.10.11 -p 7004 shutdown cd /usr/local/redis/redisCluster/redis5 ./redis-cli -h 192.168.10.11 -p 7005 shutdown cd /usr/local/redis/redisCluster/redis6 ./redis-cli -h 192.168.10.11 -p 7006 shutdown

 

在防火墙中放开这六个端口

重启防火墙：service iptables restart

 

第五步：创建集群。

./redis-trib.rb create --replicas 1 192.168.10.11:7001 192.168.10.11:7002 192.168.10.11:7003 192.168.10.11:7004 192.168.10.11:7005  192.168.10.11:7006

[root@bogon redis-cluster]# ./redis-trib.rb create --replicas 1 192.168.25.153:7001 192.168.25.153:7002 192.168.25.153:7003 192.168.25.153:7004 192.168.25.153:7005  192.168.25.153:7006

>>> Creating cluster

Connecting to node 192.168.25.153:7001: OK

Connecting to node 192.168.25.153:7002: OK

Connecting to node 192.168.25.153:7003: OK

Connecting to node 192.168.25.153:7004: OK

Connecting to node 192.168.25.153:7005: OK

Connecting to node 192.168.25.153:7006: OK

>>> Performing hash slots allocation on 6 nodes...

Using 3 masters:

192.168.25.153:7001

192.168.25.153:7002

192.168.25.153:7003

Adding replica 192.168.25.153:7004 to 192.168.25.153:7001

Adding replica 192.168.25.153:7005 to 192.168.25.153:7002

Adding replica 192.168.25.153:7006 to 192.168.25.153:7003

M: 5a8523db7e12ca600dc82901ced06741b3010076 192.168.25.153:7001

   slots:0-5460 (5461 slots) master

M: bf6f0929044db485dea9b565bb51e0c917d20a53 192.168.25.153:7002

   slots:5461-10922 (5462 slots) master

M: c5e334dc4a53f655cb98fa3c3bdef8a808a693ca 192.168.25.153:7003

   slots:10923-16383 (5461 slots) master

S: 2a61b87b49e5b1c84092918fa2467dd70fec115f 192.168.25.153:7004

   replicates 5a8523db7e12ca600dc82901ced06741b3010076

S: 14848b8c813766387cfd77229bd2d1ffd6ac8d65 192.168.25.153:7005

   replicates bf6f0929044db485dea9b565bb51e0c917d20a53

S: 3192cbe437fe67bbde9062f59d5a77dabcd0d632 192.168.25.153:7006

   replicates c5e334dc4a53f655cb98fa3c3bdef8a808a693ca

Can I set the above configuration? (type 'yes' to accept): yes

>>> Nodes configuration updated

>>> Assign a different config epoch to each node

>>> Sending CLUSTER MEET messages to join the cluster

Waiting for the cluster to join.....

>>> Performing Cluster Check (using node 192.168.25.153:7001)

M: 5a8523db7e12ca600dc82901ced06741b3010076 192.168.25.153:7001

   slots:0-5460 (5461 slots) master

M: bf6f0929044db485dea9b565bb51e0c917d20a53 192.168.25.153:7002

   slots:5461-10922 (5462 slots) master

M: c5e334dc4a53f655cb98fa3c3bdef8a808a693ca 192.168.25.153:7003

   slots:10923-16383 (5461 slots) master

M: 2a61b87b49e5b1c84092918fa2467dd70fec115f 192.168.25.153:7004

   slots: (0 slots) master

   replicates 5a8523db7e12ca600dc82901ced06741b3010076

M: 14848b8c813766387cfd77229bd2d1ffd6ac8d65 192.168.25.153:7005

   slots: (0 slots) master

   replicates bf6f0929044db485dea9b565bb51e0c917d20a53

M: 3192cbe437fe67bbde9062f59d5a77dabcd0d632 192.168.25.153:7006

   slots: (0 slots) master

   replicates c5e334dc4a53f655cb98fa3c3bdef8a808a693ca

[OK] All nodes agree about slots configuration.

>>> Check for open slots...

>>> Check slots coverage...

[OK] All 16384 slots covered.

[root@bogon redis-cluster]#