2.2.2 The Heat Chart

The Heat Chart is on the right side of the Monitor page and shows the status of critical rules. Monitored servers are organized by groups. To view the status of a specific server, click the + button next to the appropriate server group.

Whenever a new agent contacts the Service Manager for the first time, all the rules in the Heat Chart Advisor are automatically activated. These Advisors monitor the status of the server and agent, critical operating system indicators, and important events related to your MySQL servers. An example follows.

Figure 2.2 MySQL Enterprise Monitor User Interface: The Heat Chart

MySQL Enterprise Monitor User Interface: The Heat Chart

To interpret the Heat Chart, see the following legend.

Figure 2.3 MySQL Enterprise Monitor User Interface: The Heat Chart Legend

MySQL Enterprise Monitor User Interface: The Heat Chart legend

The status unknown typically applies when an agent is down and can no longer report the status of the server that it is monitoring. The status unknown can also apply if the data that should be collected is not available on the server being monitored.

You can open the Heat Chart in its own browser window by clicking the Standalone Heat Chart link immediately below the Heat Chart on the left. You can set the refresh rate to a different rate than the setting on the Monitor page.

In addition to showing the most important advisors, the Heat Chart also has columns that display the number of critical, warning, and informational alarms. Clicking the hyperlink in any one of these columns takes you to the Events tab, which gives more detailed information. For more information about events, see Section 2.4, “The Events Tab”. Hovering over the heat chart also provides server counts within the tooltips pop-up.

When the Dashboard is first installed, no notification groups are associated with the Advisors shown in the Heat Chart. For more information on this topic, see Section 5.2.7.3, “Installing, Updating or Upgrading Advisors After Initial Login” and Section 2.8.5, “Manage Notification Groups”.