监测 MySQL 服务 挂掉自动重启

最近 MySQL 服务总是挂掉

• 

cd ~
vim /mysqllisten.sh

#!/bin/bash
pgrep -x mysqld &> /dev/null
if [ $? -ne 0 ]
then
echo "MySQL stoped at time: `date` ">> /home/wwwlogs/mysql_messages
/etc/init.d/mysql restart
sleep 15s
MYSQLPORT=`netstat -na|grep "LISTEN"|grep "3306"|awk -F[:" "]+ '{print $4}'`
    if [ "$MYSQLPORT" == "3306" ]
then  
            echo "MySQL restart successful at time: `date` ">> /home/wwwlogs/mysql_messages   
        else
            echo "MySQL restart failed at time: `date` ">> /home/wwwlogs/mysql_messages 
            mail -s "wann! yourwebsitedomain's mysql restart failed" 这里写你的邮箱地址
        fi
else
echo "MySQL server is running"
fi

chmod +x ./mysqllisten.sh

添加定时任务

crontab -e

*/10 * * * * /bin/bash /root/mysqllisten.sh

service crond restart

LNMP使用中mysql宕机挂掉后自动重启脚本

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