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Metrics

This document has been created based on the MySQL Monitoring V2. For the MySQL monitoring V1 document, see the following.

What is the metrics?

WhaTap collects data from monitoring targets and provides them to users. The data collected from agents is called metrics.

Metrics consists of the following components:

  • Category: A group of related metrics
  • Tags: Data containing unique identifiers to find the targets to collect
  • Fields: Metrics collected from the agent
  • Time: Time when the metric has been collected
  • Oid: Unique number of the agent that has collected metrics

To view collected data, select a project on the Home screen, and then select Sitemap > Metrics Search.

For example, select a category named db_mysql_counter and view the related metrics. You can see the (tags) and (fields) that correspond to the category as follows.

Viewing the metrics chart

Home > Select Project > Analysis > Metrics Chart

You can see the metrics data collected from the monitoring targets through a chart.

  • Time to view (required)
  • Metric to view (required)
  • Monitoring targets to view (Optional, if nothing is selected, all items are applied)

The metric chart screen example displays the metrics (Active sessions) collected from the monitoring targets at the selected time as a chart.

Viewing the metrics raw data

Home > Select Project > Sitemap > Metrics Search

To view the metrics raw data, you have to select the criteria for viewing.

  • Time to view (required)
  • Category to view (Required)
  • Tags to view (Optional, if nothing is selected, all items are applied)
  • Fields to view (Optional, if nothing is selected, all items are applied)