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shell脚本监控mysql服务器状态

已有 161 阅读此文人 - - Linux,系统管理 -

新人献丑,大家拍砖……

目的:
1.监控mysql服务器的状态
2.当发现mysql down机就自动重启mysql服务
3.重启mysql不成功,发邮件给管理员警告mysql down机

说明:mysql取用的是3306端口,知道这点我们就好去监控mysql服务状态了,我的脚本就是通过3306端口监控mysql服务的……

#vi /usr/local/sbin/sbin/check_mysql.sh

#!/bin/sh
cat << EOF
+--------------------------------------------------------------------------+
|                      === Welcome to LinuxTone===                         |
|-------------------------http://www.linuxtone.org------------------------ |
+-------------------------------By:hamgua----------------------------------+
EOF

PORT=`netstat -na|grep "LISTEN"|grep "3306"|awk -F<:" ">+ '{print $5}'`
MYSQLIP=`ifconfig eth0|awk '/inet/{print $2}'|cut -c 6-`
while < `whoami` == "root" >
do
  if < "$PORT" == "3306" >;then
    echo "mysql is running......"
  else
    echo "restart mysql"
    /etc/init.d/mysqld restart
       if < "$PORT" == "3306" >;then
         echo "mysql restart successful......"
       else
         echo "mysql restart failure......"
         echo "server: $MYSQLIP mysql is down,please try to restart mysql!" > /var/log/mymsg
         mail -s "warn!server: $MYSQLIP  mysql is down" hamgua\@gmail.com < /var/log/mymsg
       fi
  fi
break
done

赋予check_mysql.sh可执行的权限
#chmod u+x /usr/local/sbin/check_mysql.sh

加入crontab,让系统五分钟检测一次mysql状态
#crontab -l

…………
*/5 * * * * /usr/local/sbin/check_mysql.sh > /dev/null 2>&1
期待你一针见血的评论,Come on!

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