• Redis 3.2.8 集群模式+Sentinel多Master部署


    环境准备
    CentOS 7.3
    redis1 172.18.1.101:7001 master
    redis2 172.18.1.102:7002 master
    redis3 172.18.1.103:7003 master
    redis4 172.18.1.104:7004 slave
    redis5 172.18.1.105:7005 slave
    redis6 172.18.1.106:7006 slave

    停止防火墙(有可能还需要iptables加规则)
    systemctl stop firewalld.service
    systemctl disable firewalld.service

    修改内核参数
    vi /etc/sysctl.conf
    vm.overcommit_memory = 1

    查看效果
    sysctl -p

    安装必要的软件包
    yum -y install gcc automake autoconf libtool make telnet ruby-devel ruby-irb ruby-libs ruby-rdoc ruby rubygems-devel rubygems
    gem install redis #忘了这一步会导致使用redis-trib.rb创建集群的时候报错

    编译安装Redis
    cd ~
    wget http://download.redis.io/releases/redis-3.2.8.tar.gz
    tar -zxf redis-3.2.8.tar.gz;cd redis-3.2.8;make
    make install PREFIX=/usr/local/redis
    mkdir /usr/local/redis/etc;mkdir /usr/local/redis/db;cp redis.conf /usr/local/redis/etc/;cp ./src/redis-trib.rb /usr/local/redis/bin/

    修改配置文件,密码为password
    vi /usr/local/redis/etc/redis.conf

    #bind 127.0.0.1 #这里注释掉,否则会导致其它节点无法与本节点通信
    protected-mode yes
    port 7001 #不同机器端口不一样,我们用7001-7006 #如果用一样的端口,创建集群会出问题
    daemonize yes
    pidfile /var/run/redis_7001.pid #不同机器PID文件不一样,我们用7001-7006 #可以用同一个,但是为了统一还是建议改成不同的
    logfile "/var/log/redis.log"
    dir /usr/local/redis/db/
    masterauth password
    requirepass password
    appendonly yes
    cluster-enabled yes
    cluster-config-file nodes-7001.conf #不同机器nodes.conf文件不一样,我们用7001-7006 #原因同pidfile
    cluster-node-timeout 15000

    启动Redis测试能否正常启动,注意看一下端口
    /usr/local/redis/bin/redis-server /usr/local/redis/etc/redis.conf

    备份Redis配置文件,未来如果改了其他设置除了问题,可以留作比对
    cp -p redis.conf redis.conf.bak

    查看日志
    tail -100f /var/log/redis.log

    修改ruby脚本,否则无法创建集群
    vi /usr/local/share/gems/gems/redis-3.3.3/lib/redis/client.rb
    修改DEFAULTS里面的password一项,我们这里用的是"password",一定要加引号

    创建集群,这里一定要用IP和端口,不能用hostname
    /usr/local/redis/bin/redis-trib.rb create --replicas 1 172.18.1.101:7001 172.18.1.102:7002 172.18.1.103:7003 172.18.1.104:7004 172.18.1.105:7005 172.18.1.106:7006

    查看哪些Redis实例被定为Master
    /usr/local/redis/bin/redis-cli -h 127.0.0.1 -p 7001
    cluster nodes

    拷贝sentinel.conf到etc下
    cp /root/redis-3.2.8/sentinel.conf /usr/local/redis/etc

    编辑sentinel.conf
    vi /usr/local/redis/etc/sentinel.conf

    protected-mode no
    port 27001 #不同Sentinel端口不一样,我们用27001-27003

    sentinel monitor mymaster1 172.18.1.101 7001 2
    sentinel monitor mymaster2 172.18.1.102 7002 2
    sentinel monitor mymaster3 172.18.1.103 7003 2

    sentinel down-after-milliseconds mymaster1 10000
    sentinel down-after-milliseconds mymaster2 10000
    sentinel down-after-milliseconds mymaster3 10000

    sentinel parallel-syncs mymaster1 1
    sentinel parallel-syncs mymaster2 1
    sentinel parallel-syncs mymaster3 1

    sentinel failover-timeout mymaster1 15000
    sentinel failover-timeout mymaster2 15000
    sentinel failover-timeout mymaster3 15000

    daemonize yes
    logfile "/var/log/sentinel.log"

    备份Sentinel配置文件,未来如果改了其他设置除了问题,可以留作比对
    cp -p sentinel.conf sentinel.conf.bak

    启动Sentinel
    /usr/local/redis/bin/redis-sentinel /usr/local/redis/etc/sentinel.conf

    常用命令
    ps -ef | grep redis
    tail -100f /var/log/redis.log
    tail -100f /var/log/sentinel.log
    /usr/local/redis/bin/redis-cli -h 172.18.1.101 -p 7001 -a password
    kill $(ps -ef | grep redis | grep -v grep | awk '{print $2}')

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  • 原文地址:https://www.cnblogs.com/Cratical/p/6811245.html
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