redis cluster 配置

#服务器192.168.56.111 192.168.56.112 192.168.56.113
计划1主2从

	192.168.56.111	192.168.56.112	192.168.56.113
主	6380	6380	6380
从1	6381	6381	6381
从2	6382	6382	6382

1.创建目录

#3台服务器创建目录:
mkdir - p /data/redis-cluster/nodes_6800
mkdir - p /data/redis-cluster/nodes_6801
mkdir - p /data/redis-cluster/nodes_6802

2.修改redis.conf

#redis cluster 配置需要修改redis.conf的参数如下 [6800-6802]全部修改:
logfile "/data/redis-cluster/nodes_6800/redis_6800.log"
dir /data/redis-cluster/nodes_6800/
cluster-enabled yes
cluster-config-file nodes-6800.conf
port 6800
pidfile /var/run/redis_6800.pid
dbfilename dump_6800.rdb

3.启动redis

#3台服务器启动redis

redis-server /data/redis-cluster/nodes_6800/redis.conf
redis-server /data/redis-cluster/nodes_6801/redis.conf
redis-server /data/redis-cluster/nodes_6802/redis.conf 

4.创建集群

#创建集群
#replicas 1   1个从库
redis-trib.rb create --replicas 1 192.168.56.111:6800 192.168.56.111:6801 192.168.56.112:6800 192.168.56.112:6801 192.168.56.113:6800 192.168.56.113:6801
#需要增加从库
#演示下增加从库
#可以为每个主库增加从库，替换master-id,
#redis-trib.rb check 192.168.56.111:6800  可以获得master-id
#为89b8990646e759f3fc8e10b1e953ea8e032dcff0 新增从库 192.168.56.111:6802
redis-trib.rb add-node --slave --master-id 89b8990646e759f3fc8e10b1e953ea8e032dcff0 192.168.56.111:6802 192.168.56.111:6800

5.创建2从库集群

#创建集群
#replicas 2   2个从库
redis-trib.rb create --replicas 2 192.168.56.111:6800 192.168.56.111:6801 192.168.56.111:6802  192.168.56.112:6800 192.168.56.112:6801  192.168.56.112:6802 192.168.56.113:6800 192.168.56.113:6801 192.168.56.113:6802
#查看系统配置信息
redis-trib.rb info  192.168.56.111:6800
redis-trib.rb check 192.168.56.111:6800