redis-monitor

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Redis-Server 监控机安装

一、安装redis

此过程请参考　这里

  • 复制可执行文件

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    sudo cp /usr/local/redis/src/redis-server /usr/local/bin
    sudo cp /usr/local/redis/src/redis-cli /usr/local/bin

  • 创建 redis-monitor 的软链

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    cd /usr/local/bin
    sudo ln -s /usr/local/bin/redis-server redis-monitor

二、配置监控

  • 创建redis目录

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    sudo mkdir /etc/redis
    sudo mkdir /etc/log/redis

  • 赋予redis目录权限

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    sudo chown -R admin:admin /etc/redis
    sudo chown -R admin:admin /etc/log/redis

  • 创建监控配置文件sentinel.conf

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    touch /etc/redis/sentinel.conf

  • 修改sentinel.conf增加portal-session、portal-site配置段

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    # 监控端口
    port 26379
    # 集群master端口及地址,名称支持 A-z 0-9 特殊字符可包含 ".-_"
    sentinel monitor portal-site 172.17.121.33 1221 1
    sentinel monitor portal-session 172.17.121.33 6379 1
    # Master宕机后 N 秒内由slave接替其工作，单位：毫秒
    sentinel down-after-milliseconds portal-site 30000
    sentinel down-after-milliseconds portal-session 30000
    # 设置是否可以由监控发起自动切换
    sentinel can-failover portal-site yes
    sentinel can-failover portal-session yes
    # 设置当master宕机后由 N 个slave同步提供服务
    # 如果仅使用redis供查询使用，请尽量设置一个较低的值以避免同步锁问题
    sentinel parallel-syncs portal-site 1
    sentinel parallel-syncs portal-session 1
    # Default is 15 minutes.
    sentinel failover-timeout portal-site 900000
    sentinel failover-timeout portal-session 900000

  • 创建服务启动脚本

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    sudo touch /etc/init.d/redis-monitor

  • 修改redis-monitor脚本内容

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    #!/bin/sh
    #
    # redis - this script starts and stops the redis-server daemon
    #
    # chkconfig:   - 85 15
    # description:  Redis is a persistent key-value database
    # processname: redis-server
    # config:      /etc/redis/sentinel.conf
    # pidfile:     /var/run/sentinel.pid
    # lockfile:    /var/lcok/sentinel
    # Source function library.
    . /etc/rc.d/init.d/functions
    # Source networking configuration.
    . /etc/sysconfig/network
    # Check that networking is up.
    [ "$NETWORKING" = "no" ] && exit 0
    # define the exec progrom
    REDIS_EXEC="/usr/local/bin/redis-monitor"
    REDIS_CONF_FILE="/etc/redis/sentinel.conf"
    PROG=$(basename $REDIS_EXEC)
    # if /etc/sysconfig/redis exists,use this config env
    [ -f /etc/sysconfig/redis ] && . /etc/sysconfig/redis
    LOCKFILE=/var/lock/redis/sentinel
    start() {
        [ -x $REDIS_EXEC ] || exit 5
        [ -f $REDIS_CONF_FILE ] || exit 6
        echo -n $"Starting $PROG: "
        nohup $REDIS_EXEC /etc/redis/sentinel.conf --sentinel > /var/log/redis/monitor.log 2>&1 &
        echo [ OK ] && touch $LOCKFILE
        return
    }
    stop() {
        pid=`ps -ef|grep $REDIS_EXEC|grep -v grep|awk '{print $2}'`
        if [ ! $pid ]; then
            echo $"$PROG is stoped"
        else
            echo -n $"Stopping $PROG: "
            kill -9 $pid
            echo [ OK ] && rm -f $LOCKFILE
        fi
        return
    }
    rh_status() {
        status $PROG
    }
    rh_status_q() {
        rh_status >/dev/null 2>&1
    }
    restart() {
        stop
        start
    }
    exit_a(){
        echo $"$PROG is running"
        exit 0
    }
    exit_b(){
        echo $"$PROG is stopped"
        exit 0
    }
    case "$1" in
        start)
            rh_status_q && exit_a
            $1
            ;;
        stop)
            rh_status_q || exit_b
            $1
            ;;
        restart|configtest)
            $1
            ;;
        status)
            rh_status
            ;;
        *)
            echo $"Usage: $0 {start|stop|status|restart|condrestart|try-restart|reload|force-reload}"
            exit 2
    esac

  • 赋予此脚本可执行权限

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    sudo chmod u+x redis-monitor

  • 添加系统启动服务

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    sudo chkconfig --add redis-monitor
    sudo chkconfig --level 345 redis-monitor on

  • 启动服务

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    sudo service redis-monitor start

  • 验证服务正确启动