The mode Redis Sentinel

First, the concept of Sentinel mode

Sentinel mode is a special mode, first Redis Sentinel provides command, Sentinel is a separate process, as a process, it will operate independently. The principle is Sentinel by sending a command, the server waits for a response Redis to monitor multiple instances running Redis.

Second, the experimental environment

Third, install redis service

1, to specify an external source installation
wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-6.repo
2, mounted Redis
yum the install Redis -Y

four,