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  • 三、搭建哨兵

     1、先创建一主二从,端口号分别为master:6379,slave:6380,slave:6381

     2、接着创建三个哨兵26379、26380、26381,首先在data/sentinel-01/conf目录下载sentinel.conf配置文件

    wget http://download.redis.io/redis-stable/sentinel.conf  # 下载sentinel配置文件
    3、编写sentinel.conf配置文件内容如下(此为sentinel26379,其余两个只需修改端口号就行):
    port 26379
    daemonize no
    logfile "27379.log"
    #dir "/data/sentinel/data"
    dir ./
    sentinel monitor mymaster 172.17.0.2 6379 2 #监控主master地址
    sentinel down-after-milliseconds mymaster 30000
    sentinel parallel-syncs mymaster 1
    sentinel failover-timeout mymaster 180000

     

    4、运行哨兵26379

      docker run --name sentinel26379 -p 26379:26379 
    -v /data/sentinel-01/conf/sentinel.conf:/redis/redis.conf 
    -v /data/sentinel-01/data:/data 
    -d redis:6.0.5 redis-sentinel /redis/redis.conf 
    ​
    #运行26380
    docker run --name sentinel26380 -p 26380:26380 
    -v /data/sentinel-02/conf/sentinel.conf:/redis/redis.conf 
    -v /data/sentinel-02/data:/data 
    -d redis:6.0.5 redis-sentinel /redis/redis.conf 
    ​
    #运行26381
    docker run --name sentinel26381 -p 26381:26381 
    -v /data/sentinel-03/conf/sentinel.conf:/redis/redis.conf 
    -v /data/sentinel-03/data:/data 
    -d redis:6.0.5 redis-sentinel /redis/redis.conf 
     

     5、查看sentinel.conf,有新增内容:

    port 26379
    daemonize no
    logfile "26379.log"
    dir ./
    sentinel myid 251c6aaa9f0453a2cf1e1d3cc85e7a1af00a5753
    sentinel deny-scripts-reconfig yes
    sentinel monitor mymaster 172.17.0.2 6379 2
    sentinel config-epoch mymaster 0
    # Generated by CONFIG REWRITE
    user default on nopass ~* +@all
    sentinel leader-epoch mymaster 0
    sentinel known-replica mymaster 172.17.0.4 6381
    sentinel known-replica mymaster 172.17.0.3 6380
    sentinel current-epoch 0

     6、进入sentinel26379容器内查看信息:

    docker exec -it sentinel26379 /bin/bash
    info

     

     7、查看sentinel26381的日志信息:

      

     

    8、停掉master6379,并查看sentinel26387的日志信息:

    选择了6380作为主master

     

    9、查看redis6380的服务器信息如下:

    可以查看redis6380已经被作为master服务器了。

    info replication

     

     10、测试值:

     

     

     11、再次重启,还是6380作为master,6379作为slave

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  • 原文地址:https://www.cnblogs.com/-jiandong/p/13410093.html
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