1.mysql主从复制、redis基础、持久化和主从复制
https://www.cnblogs.com/Zzbj/p/10274367.html
2.redis的主从复制(读写分离)/哨兵(主从切换)配置
https://blog.youkuaiyun.com/zmx729618/article/details/76671746
3.redis实现主从复制和集群、利用Gearman进行Mysql到Redis的复制
https://blog.youkuaiyun.com/weixin_41927237/article/details/81637326