1. Sentinel工具完成监控--操作步骤

(1)redis解压包中的sentinel.conf拷贝到redis的安装目录下:

[root@192 redis]# cp /opt/redis-4.0.11/sentinel.conf ./

 

(2)修改配置文件sentinel.conf,修改内容如下:

[root@192 redis]# vi sentinel.conf

#sentinel monitor mymaster 127.0.0.1 6379 2

sentinel monitor mymaster 127.0.0.1 6379 1

sentinel down-after-milliseconds mymaster 30000

 

(3)启动redis服务

 

[root@192 redis]# ./bin/redis-server ./redis.conf

[root@192 redis]# ./bin/redis-server ./redis6380.conf

[root@192 redis]# ./bin/redis-server ./redis6381.conf

 

(4)启动sentinel监控:

[root@192 redis]# ./bin/redis-server ./sentinel.conf --sentinel

 

(5)master宕掉:

127.0.0.1:6379> shutdown

(6)查看sentinel监控的变化

 

(7)查看从服务器的变化

127.0.0.1:6380> info replication

# Replication

role:master

connected_slaves:1

slave0:ip=127.0.0.1,port=6381,state=online,offset=38168,lag=0

 

127.0.0.1:6381> info replication

# Replication

role:slave

master_host:127.0.0.1

master_port:6380

master_link_status:up

 

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