监控MYSQL主从同步配置中监控从库运行状态的脚本

太过爱你忘了你带给我的痛 2024-02-18 15:44 41阅读 0赞

代码如下：  
  
\#!/bin/bash  
\#Check MySQL Slave's Runnning Status  
\#Crontab time 00:10  
  
MYSQLPORT=\`netstat -na|grep "LISTEN"|grep "3306"|awk -F\[:" "\]+ '\{print $5\}'\`  
MYSQLIP=\`ifconfig eth0|grep "inet addr" | awk -F\[:" "\]+ '\{print $4\}'\`  
STATUS=$(/usr/bin/mysql -uroot -p11111 -S /var/lib/mysql/mysql.sock -e "show slave status\\G" | grep -i "running")  
IO\_env=\`echo $STATUS | grep IO | awk ' \{print $2\}'\`  
SQL\_env=\`echo $STATUS | grep SQL | awk '\{print $2\}'\`  
DATA=\`date +"%y-%m-%d %H:%M:%S"\`  
  
function checkMysqlStatus()\{  
if \[ "$MYSQLPORT" == "3306" \]  
then  
/usr/bin/mysql -uroot -p11111 --connect\_timeout=5 -e "show databases;" &>/dev/null 2>&1  
if \[ $? -ne 0 \]  
then  
echo "Server: $MYSQLIP mysql is down, please try to restart mysql by manual!" > /var/log/mysqlerr  
mail -s "WARN! server: $MYSQLIP mysql is down." admin@yourdomain.com < /var/log/mysqlerr  
else  
echo "mysql is running..."  
fi  
else  
mail -s "WARN!Server: $MYSQLIP mysql is down." admin@yourdomain.com  
fi  
\}  
  
checkMysqlStatus  
  
if \[ "$IO\_env" = "Yes" -a "$SQL\_env" = "Yes" \]  
then  
echo "MySQL Slave is running!"  
else  
echo "\#\#\#\#\#\#\# $DATA \#\#\#\#\#\#\#\#\#">> /data/mysql/mysql\_slave\_status.log  
echo "MySQL Slave is not running!" >> /data/mysql/mysql\_slave\_status.log  
echo "MySQL Slave is not running!" | mail -s "WARN! $MYSQLIP MySQL Slave is not running." admin@126.com  
fi  
  
建议每十分钟运行一次  
\*/10 \* \* \* \* root /bin/sh /root/mysql\_slave\_status.sh  
  
原理：  
  
1）监控MYSQL的运行状态；  
2）Slave机器的IO和SQL状态都必须为YES，缺一不可；  
  
注意，请结合自身的实际环境使用。