Redis cluster configuration method

To create a redis cluster, 6 redis nodes are required.

If you don't have 6 devices, then you can install 6 redis nodes on one server to simulate 6 servers running.

Below, we use two servers, each with 3 nodes installed as an example to illustrate how to install a cluster.

cp redis.conf redis_cluster/7000
cp redis.conf redis_cluster/7001
cp redis.conf redis_cluster/7002　

 Modify the configuration file redis.conf for each node:

port  7000                                 //端口7000,7001,7002       
bind 192.168.0.3                           //默认ip为127.0.0.1 需要改为其他节点机器可访问的ip 否则创建集群时无法访问对应的端口，无法创建集群
daemonize    yes                           //redis后台运行
pidfile  /var/run/redis_7000.pid           //pidfile文件对应7000,7001,7002
cluster-enabled  yes                       //开启集群  把注释#去掉
cluster-config-file  nodes_7000.conf   	   //配置文件首次启动自动生成，请配置不同的名称
cluster-node-timeout  15000                //请求超时  默认15秒，可自行设置
appendonly  yes

 Create three nodes on another machine, and then start 6 redis:

192.168.0.3
redis-server redis_cluster/7000/redis.conf
redis-server redis_cluster/7001/redis.conf
redis-server redis_cluster/7002/redis.conf
 
192.168.0.4
redis-server redis_cluster/7003/redis.conf
redis-server redis_cluster/7004/redis.conf
redis-server redis_cluster/7005/redis.conf

因为安装集群，需要用到ruby命令，所以先安装ruby
yum -y install ruby ruby-devel rubygems rpm-build
gem install redis

然后就是安装集群了
redis-trib.rb  create  --replicas  1  192.168.0.3:7000 192.168.0.3:7001  192.168.0.3:7002 192.168.0.4:7003  192.168.0.4:7004  192.168.0.4:7005

 

In this way, our redis cluster is installed, with 3 masters and 3 slaves.