脚步监控mysql主从是否正常

Posted 2020-06-10

mysql主从配置详见：http://chinawu.blog.51cto.com/10692884/1739327

主从正常状态是slave上的状态值：Slave_IO_Running:YES和Slave_SQL_Running:YES，当出现一个NO，表明mysql主从已破坏，但是，运维人员不可能随时进入mysql的slave上的状态值。所以需要一个脚步在规定时间内检测是否关系正常。

脚步大致内容：

#!/bin/bash

#Check MySQL_Slave Status

#MySQL version: 5.1.73

#2016-01-29

MySQL_PORT=`netstat -an|grep "LISTEN"|grep "3306"|awk -F ‘ ‘ ‘{print $4}‘|awk -F ‘:‘ ‘{print $2}‘` #注意：租后一个print $2,不一定适用所有主机，根据实际情况pring值

MySQL_IP=`ifconfig eth0 |grep "inet addr"|awk -F ‘:‘ ‘{print $2}‘|awk -F ‘ ‘ ‘{print $1}‘`

MySQL_Status=$(/usr/local/mysql/bin/mysql -S /tmp/mysql.socket -uroot -pfgjh123. -e "show slave status\G" |grep -i "running"|head -n2)

IO_env=`echo $MySQL_Status | grep Slave_IO_Running |awk ‘{print $2}‘`

SQL_env=`echo $MySQL_Status |grep Slave_SQL_Running |awk ‘{print $2}‘`

ToDay=`date +"%y-%m-%d %H:%M:%S"`

if [ "$MySQL_PORT" == "3306" ]

  then

    echo "######  $ToDay  ######" >> /data/check_mysql_slave_ok.log

    echo "MySQL Server is running !" >> /data/check_mysql_slave_ok.log

else

  mail -s "Warn! Server:$MySQL_IP MySQL is Down" [email protected]

fi

if [ "$IO_env" = "Yes" -a "$SQL_env" = "Yes" ]

  then

    echo "######  $ToDay  ######" >> /data/check_mysql_slave_ok.log

    echo "Slave MySQL Server Slave_IO and Slave_SQL is running !" >> /data/check_mysql_slave_ok.log

else

  echo "######  $ToDay  ######" >> /data/check_mysql_slave_warn.log

  echo "Slave is not running !" >> /data/check_mysql_slave_warn.log

  echo "Slave is not running !" | mail -s "Warn! $MySQL_IP MySQL Slave is not running " [email protected]

fi

随后放入自动执行任务列表中，crontab -e

*/10 * * * * root /bin/sh /root/shell/Check_MySQL_Slave_Status.sh

每十分钟运行一次检测脚步（时间自定义，crontab五个参数请自习）

zabbix添加触发器，检测mysql主从，微信告警

[[email protected] scripts]# cat  mysql-replication.sh 

#!/bin/bash

mysql  -uzabbix -e  ‘show slave status\G‘ |grep -E "Slave_IO_Running|Slave_SQL_Running"|awk ‘{print $2}‘|grep -c Yes

[[email protected] scripts]#

[[email protected] etc]# tail  -15  zabbix_agentd.conf

UserParameter=mysql.replication,  /home/zabbix/scripts/mysql-replication.sh

UserParameter=mysql.status[*],/home/zabbix/scripts/chk_mysql.sh $1