Redis read-write separation and sentinel mechanism configuration

1. Use the commands cp redis.conf /redis63791.conf, cp redis.conf /redis63792.conf, cp redis.conf /redis63793.conf in /etc/redis/ to The root directory is ready

vim redis63792.conf  --->修改配置文件
daemonize yes 守护进程
port 63792 端口
bind 192.168.0.3 绑定内网地址
databases 16 开启16个数据库
save ---> 每多少个文件执行一次保存
(主人不需要以下操作)
slaveof 116.196.107.20 63791 --> 作为该ip该端口的奴隶
masterauth '123456789' --> 认证主人的密码
----------------------
appendonly yes 开启这个增强数据的安全性
(以上为正常的redis.conf里面的配置文件,所有的slave都要去连接主人的服务器,只能读,不能写,自动同步数据,读写分离可以大大的增强服务器的性能能,因为在正常的数据操作中, 读的时候往往比写的时候的情况要多的多, 一般情况下主从机按1:3进行分配)

2. Sentinel configuration, find the sentinel.conf file in /etc/redis (if you don’t have such a configuration file), copy cp sentinel.conf /mysentinel .conf

vim mysentinel.conf
sentinel monitor mymaster 116.196.107.20 63791 1 -->分别的意思是 哨兵监听主人:116.196.107.20的 端口:63791 哨兵数量1个, 一般情况下哨兵的数量越多, 投票选举通过的几率越小, 在投票选举出新主人花费的时间就越多, 不利于快速切换主从机制
sentinel down-after-milliseconds mymaster 5000 主机掉线以后5s进行认证,如果无法连接则重新由哨兵从slave中选出新的主人
sentinel auth-pass mymaster 123456789 哨兵通过密码连接主人

3. After the configuration is completed, you can turn on the master-slave mechanism, separate reading and writing, and provide a sentinel mechanism. After the master is down for 5 seconds, a new master will be randomly selected from the slave. Previously After the master is connected, he can only work as a slave! !

redis操作命令:
redis-server redis63791.conf & -->以该配置文件在后台运行服务器
redis-cli -h 116.196.107.20 -p 63791 远程连接服务器
auth 123456789 --->在redis中验证密码
redis-server mysentinel.conf --sentinel 启动哨兵模式开始监听, 如下:

For more redis knowledge, please pay attention to the redis introductory tutorial column.

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