tar -xvf keepalived-1.1..tar.gz && cd keepalived-1.1. && ./configure --prefix=/usr/local/keepalived && make && make install && cp /usr/local/keepalived/etc/rc.d/init.d/keepalived /etc/rc.d/init.d/ && cp /usr/local/keepalived/etc/sysconfig/keepalived /etc/sysconfig/ &&  mkdir /etc/keepalived && cp /usr/local/keepalived/etc/keepalived/keepalived.conf /etc/keepalived/ &&  cp /usr/local/keepalived/sbin/keepalived /usr/sbin/

! Configuration File for keepalived

global_defs {

   notification_email {

     acassen@firewall.loc

     failover@firewall.loc

     sysadmin@firewall.loc

   }

   notification_email_from Alexandre.Cassen@firewall.loc

   smtp_server 192.168.200.1

   smtp_connect_timeout

   router_id MYSQLHA_DEVEL

}

vrrp_script check_mysqld {

    script "/etc/keepalived/mysqlcheck/check_mysql.sh"  #检查MYSQL 复制状态脚本

    interval

    weight

}

vrrp_instance VI_1 {

    state BACKUP  #这里主201和主202都写上BACKUP

    interface eth0  #vip对外的网络接口

    virtual_router_id  #标识号。。主主要统一起来

    priority    #优先级。主202上改成90

    advert_int

#    nopreempt   #不抢占模式。在优先级高的那台设置此参数，一般在主上设置，主的优先级高

    authentication {

        auth_type PASS

        auth_pass

    }

      track_script {

          check_mysqld  #调用MYSQL脚本的函数

    }

    virtual_ipaddress {

        192.168.5.10/

    }

}

#!/bin/bash

#Totle:check_mysql

#Description:Check mysql status

#system:Use Linux

#======================================

#Set mysql host

#每个机器改成自己的IP地址和远程授权的用户

Host_S=192.168.1.5

User_S=keepalived

Pwss_S=keepalived

Port_S=3306

#======================================

#Function-->Check_mysql_IO

#=====================================

Check_mysql_IO()

{

Check_IO=`mysql -u$User_S -p$Pwss_S -h $Host_S -P $Port_S -e "show slave status\G" | grep "Runnin" | sed 's/ //g' | grep "IO" | awk -F: '{print $NF}' | grep "Yes" | wc -l`

Check_SQL=`mysql -u$User_S -p$Pwss_S -h $Host_S -P $Port_S -e "show slave status\G" | grep "Runnin" | sed 's/ //g' | grep "SQL" | awk -F: '{print $NF}' | grep "Yes" | wc -l`

if [ $Check_IO -ne 1 -o $Check_SQL -ne 1 ]

then

  /etc/init.d/keepalived stop

  return 1

else

  Check_PID=`/etc/init.d/keepalived status | grep "pid" | wc -l`

  if [ $Check_PID -eq 1 ]

  then

      echo "OK"

      exit 0

  else

      /etc/init.d/keepalived start

     if [ $? -eq 0 ]

     then

         echo "keepalived start ok" >/tmp/checkmysql.log

         exit 0

     else

         echo "keepalived start fail..">/tmp/checkmysql.log

         return 1

     fi

  fi

fi

}

#======================================

#Function-->Main

#=====================================

Main()

{

Check_mysql_IO

    if [ $? -eq 1 ]

    then

        echo "Mysql $Host_S IO or SQL error" | mail -s "Mysql IO error" 50738846@qq.com

        exit 1

    fi

}

Main;