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  • MySQL配置HeartBeat实现心跳监控和浮动IP

    1. 初始化环境配置
    /sbin/chkconfig --add mysqld
    /sbin/chkconfig mysqld on
    ln -s /usr/local/mysql/bin/mysql /sbin/mysql
    ln -s /usr/local/mysql/bin/mysqladmin /sbin/mysqladmin

    echo "/usr/local/mysql/lib/mysql" >> /etc/ld.so.conf
    /sbin/ldconfig
    export PATH=$PATH:/usr/local/mysql/bin

    2. 安装HeartBeat组件
    rpm -ivh libnet-1.1.2.1-2.1.i386.rpm
    rpm -ivh heartbeat-pils-2.1.4-2.1.i386.rpm
    rpm -ivh --nodeps heartbeat-stonith-2.1.4-2.1.i386.rpm
    rpm -ivh --nodeps heartbeat-2.1.4-2.1.i386.rpm
    rpm -ivh --nodeps heartbeat-devel-2.1.4-2.1.i386.rpm
    rpm -ivh --nodeps heartbeat-ldirectord-2.1.4-2.1.i386.rpm


    3. 配置 HA的各配置文
    shell> cp /usr/share/doc/packages/heartbeat/authkeys /etc/ha.d/
    shell> cp /usr/share/doc/packages/heartbeat/haresources /etc/ha.d/
    shell> cp /usr/share/doc/packages/heartbeat/ha.cf /etc/ha.d/
    (1) 配置心跳的加密方式
    shell> vi /etc/ha.d/authkeys
    #如果使用双机对联线(双绞线),可以配置如下:
    auth 1
    1 crc
    shell> chmod 600 /etc/ha.d/authkeys
    (2) 配置心跳的监控:haresources
    shell> vi /etc/ha.d/haresources
    #各主机这部分应完全相同。IP为虚拟IP
    mysqlA IPaddr::192.168.1.199 ipvsadm mysqld

    (3) 创建日志目录
    shell> mkdir -p /var/log/ha_log
    shell> chmod 777 /var/log/ha_log/

    (4) 编辑ha.cf
    shell> vi /etc/ha.d/ha.cf
    logfile /var/log/ha_log/ha.log
    bcast eth0
    keepalive 2
    warntime 10
    deadtime 30
    initdead 120
    hopfudge 1
    udpport 694
    auto_failback on
    node feng
    node feng2
    ping 192.168.1.1
    respawn hacluster /usr/lib/heartbeat/ipfail
    apiauth ipfail gid=root uid=root
    debugfile /var/log/ha_log/ha_debug.log

    # 打开调度器转发选项
    echo 1 > /proc/sys/net/ipv4/ip_forward

    # 设置ipvsadm的巡回监测
    ipvsadm -A -t 192.168.1.199:3306 -s rr
    ipvsadm -a -t 192.168.1.199:3306 -r 192.168.1.201:3306 -m
    ipvsadm -a -t 192.168.1.199:3306 -r 192.168.1.202:3306 -m

    执行后进行监测:
    ipvsadm --list

    HA服务的启动、关闭以及测试启动HA:
    service heartbeat start
    关闭HA; service heartbeat stop
    进行监控: service heartbeat status

    heartbeat 默认使用udp 694端口进行心跳监测。 如果系统有使用iptables 做防火墙
    iptables -I INPUT -p udp --dport 694 -j ACCEPT

    https://www.cnblogs.com/seasonzone/p/14429780.html

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  • 原文地址:https://www.cnblogs.com/seasonzone/p/14467206.html
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