Redis-Twemproxy monit Intro

A twemproxy ticket about doing HA redis.

A simple python script which will connect to Redis-Sentinel and monitor for the master-change event. It will then update TwemProxy (nutcracker) and restart it.

The basic idea behind it, is so that you have redundancy in your redis shards, when your master dies, a slave is promoted to Master by Redis Sentinel, and then this agent updates your TwemProxy config to point to the new master.

        TwemProxy
    __________|__________
    |                   |
Master1             Master N

Slave1 SlaveN Slave 1 Slave N

        Redis Sentinel

脚本运行： nohup redis-twemproxy-monit.py &

配置文件路径 TwemProxy /etc/nutcracker/nutcracker.yml

1、本机redis_Sentinel监控 ,注释以下几行 host={} host["ip"] = "10.10.10.1" host["name"] = "" host["password"] = "" host["port"] = 22

2、监控远程redis_Sentinel 配置对应的服务器信息即可 host["ip"] = "10.10.10.1" host["name"] = "" host["password"] = "" host["port"] = 22

脚本运行： nohup redis-twemproxy-monit.py &