二十二、Redis Sentinel模式搭建

#                           Redis Sentinel模式搭建

架構模型圖： 

###1、redis一主二從配置

redis7000.conf

port 7000
daemonize yes
protected-mode no
bind 192.168.1.108
pidfile /var/run/redis-7000.pid
logfile /opt/module/redis7000/data/"7000.log"
dir /opt/module/redis7000/data
slave-read-only yes

           

redis7001.conf

port 7001
daemonize yes
protected-mode no
bind 192.168.1.108
pidfile /var/run/redis-7001.pid
logfile /opt/module/redis7001/data/"7001.log"
dir /opt/module/redis7001/data
slave-read-only yes
slaveof 127.0.0.1 7000
           

redis7002.conf

port 7002
daemonize yes
protected-mode no
bind 192.168.1.108
pidfile /var/run/redis-7002.pid
logfile /opt/module/redis7002/data/"7002.log"
dir /opt/module/redis7002/data
slave-read-only yes
slaveof 127.0.0.1 7000
           

###2、三台Redis Sentinel 搭建

sentinel26379.conf

port 26379

daemonize yes

logfile /opt/module/redis-sentinel/data/"26379.log"

dir /opt/module/redis-sentinel/data

#sentinel通過主節點執行 info replication 指令來擷取從節點資訊
sentinel monitor mymaster 127.0.0.1 7000 2

#如果需要監視多套主從，就配置多個sentinel monitor mymaster2 127.0.0.1 7000 2

sentinel down-after-milliseconds mymaster 30000

sentinel parallel-syncs mymaster 1

sentinel failover-timeout mymaster 180000
           

啟動指令：

redis-sentinel sentinel26379.conf
           

啟動後配置檔案:自動發現從節點

port 26379

daemonize yes

logfile "/opt/module/redis-sentinel/data/26379.log"

dir "/opt/module/redis-sentinel/data"

sentinel myid aa12fb6410798bb8fffe99fdbb1602d32c278c0c

sentinel deny-scripts-reconfig yes

sentinel monitor mymaster 127.0.0.1 7000 2

sentinel config-epoch mymaster 0
# Generated by CONFIG REWRITE
sentinel leader-epoch mymaster 0
sentinel known-slave mymaster 127.0.0.1 7001
sentinel known-slave mymaster 127.0.0.1 7002
sentinel current-epoch 0

           

多了從節點的配置資訊。

其他兩個sentinel配置檔案：

sentinel26380.conf

port 26380

daemonize yes

logfile "/opt/module/redis-sentinel/data/26380.log"

dir "/opt/module/redis-sentinel/data"

sentinel monitor mymaster 127.0.0.1 7000 2

sentinel down-after-milliseconds mymaster 30000

sentinel parallel-syncs mymaster 1

sentinel failover-timeout mymaster 180000

           

sentinel26381.conf

port 26381

daemonize yes

logfile "/opt/module/redis-sentinel/data/26381.log"

dir "/opt/module/redis-sentinel/data"

sentinel monitor mymaster 127.0.0.1 7000 2

sentinel down-after-milliseconds mymaster 30000

sentinel parallel-syncs mymaster 1

sentinel failover-timeout mymaster 180000