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Foglight for JMX 5.9.8 - User Guide

Foglight for JMX System Requirements Installing Foglight for JMX Managing JMX Agents Managing MBean Server Models Monitoring and Investigating JMX Data

Setting Collection Frequency

When the JMX Administration dashboard is open in the display area, you also have access to the Set Collection Frequency action in the Action panel on the right side of the Foglight for JMX browser interface. You can set the collection frequency for JMX data on a per-category basis. For example, if you want to collect JVM data less frequently than MBean data, you can adjust the JVM Data collection setting.

3
In the Actions section, click Set collection frequency.
If you make a mistake, click Reset to Defaults to revert to the default settings, or click Cancel to close the dialog box without saving your changes.
5
Click OK to save and apply your changes.

 

 

Monitoring and Investigating JMX Data

Foglight for JMX gathers JMX data. This data is displayed in the Application Servers > Monitor dashboard. You can review full details about the MBeans being monitored in the Systems and Servers tabs of this dashboard.

NOTE: If you do not see the Application Servers > Monitor dashboard listed in the navigation panel, inform your Foglight Systems Administrator. Your Administrator can add your user account to the “JMX Administrator” or “JMX Read-only User” group. You must have one of these roles to be able to see the Custom Applications Monitor Homes dashboard.
For more information about users and groups, see the Foglight for JMX Administration and Configuration Guide.
For more information, see the Monitoring Application Servers User and Reference Guide.

Alternatively, the JMX Explorer dashboard provides a view of the JMX metrics in a data browser format. Use this dashboard to investigate the MBean structure.

On the navigation panel, under Dashboards, click Application Servers > JMX > Explorer.

Viewing MBean Data in the JMX Explorer Dashboard

Use the JMX Explorer dashboard to see how many MBeans are currently being monitored and to view their properties and metrics.

On the navigation panel, under Dashboards, click Application Servers > JMX > Explorer.

The appearance of the Explorer dashboard changes slightly depending on whether you have a Root Query or an MBean instance selected in the table on the MBean Structure tab. The Root Query represents a Root Type defined by the server model.

Viewing Monitored MBeans

The MBeans table on the left side of the JMX Explorer dashboard lists the MBeans that are currently being monitored. You can display the information in a List or Structure view. Selecting an MBean from this table populates the information in the MBean view on the right. You can review the System, Server, and JVM for the selected MBean, any related relationships the MBean has, its metrics, sub-stats (if available), and properties. The table list is based on the exposed relationships configured through the JMX Administration dashboard. For more information about relationships, see On the Exposed Relationships page, expose one or more named relationships. .

The All MBeans tab provides a high-level overview of the monitored MBeans, their health, and their type.

Figure 1. All MBeans tab

The MBean Structure tab provides the same information in a tree format that allows you to review the structure of the MBean instances. It also provides the MBean health status.

Select an individual MBean instance to view its details in the MBean view on the right, as shown below.

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