Redis Sentinel安装、配置和部署

不念不忘少年蓝@ 2022-04-25 04:06 183阅读 0赞

#    转载请注明出处哈:http://carlosfu.iteye.com/blog/2240426 #

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实际中，多个sentinel、master、slave不应该在一台机器

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**一、准备redis(下载、编译、安装、配置目录、数据目录)**

1. 下载、编译、安装

cd /opt/soft
    wget http://download.redis.io/releases/redis-3.0.6.tar.gz
    tar xzf redis-3.0.6.tar.gz
    cd redis-3.0.6
    make
    make install

cd /opt/soft/redis-3.0.6
    mkdir -p data
    mkdir -p conf

3.建立软链接：

ln -s /opt/soft/redis-3.0.6 /opt/soft/redis

**二、配置、启动Redis节点（本例子以1主2从，3个sentinel组成Redis Sentinel结构）**

# ![img_27f340864c4d30181fe31b94125ab0a2.png][] #

(1) 配置redis节点，在conf目录下添加3个(7000,7001,7002)redis-$\{port\}.conf作为3个Redis节点的配置文件

其中7000是主,7001,7002是从

master的配置文件(7000)

port 7000
    daemonize yes
    pidfile /var/run/redis-7000.pid
    logfile "7000.log"
    dbfilename "dump-7000.rdb"
    appendonly yes
    appendfilename "appendonly-7000.aof"
    dir "/opt/soft/redis/data/"

生成两个slave的配置文件(7001,7002)

sed 's/7000/7001/g' redis-7000.conf > redis-7001.conf
    echo "slaveof 10.10.53.159 7000" >> redis-7001.conf
    
    sed 's/7000/7002/g' redis-7000.conf > redis-7002.conf
    echo "slaveof 10.10.53.159 7000" >> redis-7002.conf

(2) 启动3个节点。

redis-server /opt/soft/redis/conf/redis-7000.conf
    redis-server /opt/soft/redis/conf/redis-7001.conf
    redis-server /opt/soft/redis/conf/redis-7002.conf

查看节点是否都已经启动：

[@zw_53_162 conf]# ps -ef | grep redis
    root     31869     1  0 22:59 ?        00:00:00 redis-server *:7000         
    root     31875     1  0 22:59 ?        00:00:00 redis-server *:7001         
    root     31885     1  0 22:59 ?        00:00:00 redis-server *:7002

查看主从关系：

[@zw_53_162 conf]# redis-cli -p 7000 info replication
    # Replication
    role:master
    connected_slaves:2
    slave0:ip=10.10.53.159,port=7001,state=online,offset=15,lag=1
    slave1:ip=10.10.53.159,port=7002,state=online,offset=15,lag=1
    master_repl_offset:15
    repl_backlog_active:1
    repl_backlog_size:1048576
    repl_backlog_first_byte_offset:2
    repl_backlog_histlen:14

**三、启动sentinel节点:**

(1). 启动3个sentinel节点(26379,26380,26381)，配置如下：

redis-sentinel-26379.conf

port 26379
    daemonize yes
    pidfile /var/run/redis-26379.pid
    logfile "26379.log"
    dir /opt/soft/redis/data
    sentinel monitor mymaster 10.10.53.159 7000 2
    sentinel down-after-milliseconds mymaster 30000
    sentinel parallel-syncs mymaster 1
    sentinel failover-timeout mymaster 180000

redis-sentinel-26380.conf, redis-sentinel-26381.conf

sed 's/26379/26380/g' redis-sentinel-26379.conf > redis-sentinel-26380.conf
    sed 's/26379/26381/g' redis-sentinel-26379.conf > redis-sentinel-26381.conf

(2) 启动3个sentinel节点。

redis-sentinel /opt/soft/redis/conf/redis-sentinel-26379.conf
    redis-sentinel /opt/soft/redis/conf/redis-sentinel-26380.conf
    redis-sentinel /opt/soft/redis/conf/redis-sentinel-26381.conf

查看节点是否都已经启动：

[@zw_53_162 conf]# ps -ef | grep redis-sentinel
    root      2949     1  0 23:09 ?        00:00:00 redis-sentinel *:26379 [sentinel]       
    root      2955     1  0 23:09 ?        00:00:00 redis-sentinel *:26380 [sentinel]       
    root      2961     1  0 23:09 ?        00:00:00 redis-sentinel *:26381 [sentinel]

sentinel的info信息查询：

[@zw_53_162 config]# redis-cli -p 26379 info sentinel
    # Sentinel
    sentinel_masters:1
    sentinel_tilt:0
    sentinel_running_scripts:0
    sentinel_scripts_queue_length:0
    master0:name=mymaster,status=ok,address=10.10.53.159:7000,slaves=2,sentinels=3

[img_27f340864c4d30181fe31b94125ab0a2.png]: /images/20220210/af5e74a7813744e59ccaa5e6ef67fa7b.png