How ZABBIX can customize MySQL monitoring items and trigger alarms

For example, I want to achieve , If there is metadata lock Waiting for table metadata lock, The alarm is triggered .

1 Write monitoring scripts

cd /opt/zabbix/scripts/

vi get_metalock.sh

Add the following ：

#!/bin/bash



rm -rf /opt/zabbix/scripts/get_metalock.log



mysql -uMonitorUser -p password  -e "

SELECT * FROM information_schema.processlist WHERE state='Waiting for table metadata lock';

quit" >> /opt/zabbix/scripts/get_metalock.log



v1=`cat /opt/zabbix/scripts/get_metalock.log |wc -l`

if [ $v1 -eq 0 ];then

        echo 0

else

        echo 1

fi

# Authorize scripts

chmod 755 /opt/zabbix/scripts/get_metalock.sh

2 create profile

stay /opt/zabbix/etc/zabbix_agentd.conf The definition of Include Create the configuration file under the path .

Example ：

Include=/opt/zabbix/etc/zabbix_agentd.conf.d/*.conf

be ,

cd /opt/zabbix/etc/zabbix_agentd.conf.d/

Build a new one to userparameter At the beginning , Name custom configuration file , Example ：

vi userparameter_get_metalock.conf

Add the following ：

UserParameter=get_metalock,sh /opt/zabbix/scripts/get_metalock.sh

# restart zabbix agent

systemctl restart zabbix_agentd

3 Add monitor

In existing mysql Create monitoring items in the template

To configure - Templates - Monitoring item - Create monitor item

The key values are consistent with those defined in the configuration file （UserParameter= Value after ）.

 4 Create trigger

  Select the newly created monitoring item ：

  Set up here last result =1：

  Final , The following results are automatically generated ：

  Customize ‘ severity ’：