简单监控 MySQL 的脚本

放假前写的,监控服务器端的 状态。

#!/bin/sh  
  
MUSER=MySQL User
MPASS=MySQL Password 
MHOST=MySQL Host  
MSTART="/etc/init.d/mysqld start"  
MADMIN=/usr/bin/mysqladmin 
MTO=Administrator Email 

$MADMIN -h $MHOST -u $MUSER -p"${MPASS}" ping 2>/dev/null 1>/dev/null
if [ $? -ne 0 ]; then  
    echo "Server ERROR: MySQL Service Stopped. Restart Service..."  
    $MSTART>/dev/null  
    sleep 3 
    o=$(ps cax | grep -c ' mysqld$')  
    if [ $o -eq 1 ]; then  
        echo "MySQL Restart Success."
    else  
        echo "MySQL Service Stopped." | mail -s "MySQL Server Crashed" $MTO
    fi  
 
else  
    echo "MySQL is alive"  
fi  

功能很简单,监控 MySQL 服务是否运行,如果挂了就尝试重启服务,重启失败就发邮件通知管理员。把这个 script 放到 crontabe 里就完事了。

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