How to Set Up MySQL Monitoring with Zabbix210

Zabbix is a popular open-source monitoring solution that can be used to monitor a wide range of metrics, including those related to MySQL databases. In this article, we will provide a step-by-step guide on how to set up MySQL monitoring with Zabbix.

Prerequisites

Before you begin, you will need the following:* A MySQL database server
* A Zabbix server
* A Zabbix agent installed on the MySQL server

Step 1: Create a MySQL User for Zabbix

The first step is to create a MySQL user that will be used by Zabbix to connect to the database. This user should have the following privileges:* SELECT on all tables
* SHOW STATUS
* SHOW VARIABLES
You can create the user using the following command:```
CREATE USER 'zabbix'@'localhost' IDENTIFIED BY 'password';
GRANT SELECT, SHOW STATUS, SHOW VARIABLES ON *.* TO 'zabbix'@'localhost';
FLUSH PRIVILEGES;
```

Step 2: Configure the Zabbix Agent

Next, you need to configure the Zabbix agent to monitor the MySQL server. To do this, edit the agent configuration file (usually located at /etc/zabbix/) and add the following lines:```
Server=127.0.0.1
Hostname=mysql_server
UserParameter=,mysqladmin ping
UserParameter=,mysqladmin status | grep "Threads_connected:" | awk '{print substr($2,1,length($2)-1)}'
UserParameter=,mysqladmin status | grep "Qcache_hits:" | awk '{print substr($2,1,length($2)-1)}'
UserParameter=,mysqladmin slave status | grep "Slave_IO_Running:" | awk '{print substr($2,1,length($2)-1)}'
UserParameter=.seconds_behind_master,mysqladmin slave status | grep "Seconds_Behind_Master:" | awk '{print substr($2,1,length($2)-1)}'
```

Step 3: Create Zabbix Items and Triggers

Now, you need to create Zabbix items and triggers to monitor the MySQL database. To do this, log in to the Zabbix web interface and navigate to Configuration -> Hosts. Create a new host for the MySQL server and add the following items:* Name: MySQL Ping
* Type: Zabbix Agent
* Key:
* Update Interval: 30s
Add the following triggers:* Name: MySQL Ping Failed
* Expression: {mysql_server:()}100
* Severity: Warning
Add the following items:* Name: MySQL Qcache Hits
* Type: Zabbix Agent
* Key:
* Update Interval: 30s
Add the following triggers:* Name: MySQL Qcache Hits Low
* Expression: {mysql_server:()}60
* Severity: Warning

Conclusion

By following these steps, you can set up MySQL monitoring with Zabbix. This will allow you to monitor key metrics related to your MySQL database, such as the number of connections, the Qcache hit rate, and the status of the slave replication process.

2024-12-18

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