MySQL

Introduction

MySQL is an open source relational database management system (RDBMS) based on Structured Query Language (SQL).

When we apply the template from the “monitors” tab in device details page, we will get a second page to input the values for the required variables before saving the template.

Prerequisites

• Database and port(3306) can be accessed by the gateway.
• A gateway management profile mapped to a resource.
• Create credentials with type as Database before assigning a template to a resource. The Port, Connection Time-out, and Is Secure values are not used while creating credentials.

Database discovery and monitoring

The administrator can deploy an agent or gateway to support MySQL server agent-based or agentless monitoring respectively.

Discovery with the agent

Collector Type: Agent

Category: Application Monitors

Application Name: MySQL

Global Template Name: LINUX MySQL Template

The agent auto-discovers the MySQL database and collects the following metric information:

• MySQL-Engine information
• MySQL-Recommendations
• MySQL-Database information
• MySQL-Performance information
• MySQL-Slave information
• MySQL-Server information
• MySQL-Variable information
• MySQL-Status information

You can also apply agent-based templates to initiate monitoring.

Parameters

Note: All field attributes are mandatory, use default values wherever applicable.

Collected Metrics

Discovery with the gateway

The gateway establishes a connection to the database using Java Database Connectivity (JDBC) Java API and collects monitoring metrics using SQL queries. To monitor the MySQL database, install gateway version 5.0.0 or later.

Use one of the following mechanisms to discover MySQL servers to add them to your inventory:

• WMI
• SSH
• SNMP

Optionally, add a database server manually to the infrastructure inventory:

1. Select Infrastructure and click Resources.
2. Click the Settings icon on the top-right and click Add.
3. On the Add Device page, enter the Device Type and any other information you want to enter.
4. Click Save.

Prepare the device to start monitoring

1. Associate appropriate database credentials to the discovered database.
2. Assign one or more database-specific global monitors or templates on the device.
   Optionally, create custom metrics or monitors using SQL queries and assign them to the database.

To track monitoring of MySQL database in your cloud environment, see Monitoring Cloud Database using Gateway.

Create custom metrics

To create a metric using SQL query for MySQL monitoring, navigate to Monitoring > Metrics > Create Metric. For example, to create a metric to check the active transactions use:

SELECT count(*) from performance_schema.events_transactions_current where state='ACTIVE'

For more information, see Create a Metric.

Assign templates from setup

Assign MySQL templates to one or more resources for a selected client and change the configuration parameters while assigning templates. For more information, see Assign Templates from Setup.

Assign templates at the device level

Applying MySQL templates at the device level helps you to assign one or more templates to a specific resource. You can change the configuration parameter default values while assigning the templates. For more information, see Assign Templates at the Device Level.

Template configuration parameters:

Assign template from device management policies

Device management policies help manage resources. You can assign monitoring templates, knowledge base articles, and custom attributes using device management policies. The device management policy can be applied to one or a set of resources. For more information, see Create Policies.

View resource metrics

The gateway monitors the application using the assigned templates and displays the results in graphical format. To view resource metrics, click the database resource name > resource Details > Metrics.

Troubleshooting

If you have MySQL monitoring issues, verify gateway, telnet, and database connectivity:

ping <IP Address>
telnet <IP Address> <Port>
gcli
db <Database Type> <IP Address> <User Name> <Password> <Port> <Database Name> <Connect Timeout> <ReadTimeout> <Secure Flag> <Query>

Beginning with gateway version 5.3.0, use the following format to execute the last command, including the result-set:

db <Database Type> <IP Address> <User Name> <Password> <Port> <Database Name> <Connect Timeout> <Read Timeout> <Secure Flag> <ResultSet?: Yes/No> <Query>

Supported templates

Supported metrics