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Foglight Experience Monitor 5.8.1 - Installation and Administration Guide

Installing and configuring Multi-appliance clusters Configuring the appliance Specifying monitored web traffic Transforming monitored URLs Managing applications Foglight components and the appliance Using the console program Troubleshooting the appliance Appendix: Third party software Appendix: Dell PowerEdge system appliance

Managing application components

The Application Components category provides metrics from the perspective of a web-based application or subset of an application. On the Application Components page, accessed by navigating to Configure > Applications > Application Components, you can define application components and instrumented application components that your system should monitor.

The metrics of an application component represent an aggregation of the metrics for all of the URLs that match the regular expressions that are defined in the application component. By defining application components, you can monitor web-based applications as a single entity, so that performance metrics and SLA compliance can be evaluated from the perspective of the application as a whole.

The metrics of an instrumented application component represent an aggregation of the metrics that are tracked by FxM using the browser-based instrumentation. An instrumented application component is defined as a subset of pages that have URLs matching one or more regular expression patterns. These pages have been instrumented to return metrics to the originating web site from the user’s browser (for details, see “Configuring browser-based instrumentation” in the Foglight Experience Monitor Installation and Administration Guide).

For more information, see these topics:

Defining an application component

Configuring an application component involves defining a set of regular expressions, assigning service level thresholds, and selecting appropriate distribution configurations.

Click Add a new Application Component, located at the bottom of the Application Components section.
Click Add and proceed to Step f.
Alternatively, if you don’t know where application components are located, click the Pick a Directory link to display a window that lists the directories in use on your site. This window allows you to easily select an existing directory to serve as the basis for a regular expression. By selecting an item in this window, the box is initialized with a regular expression that matches the directory you chose. This list is not obtained by an active search of your web site but rather from the list of URLs that have been monitored and recorded by the appliance in the past.

Editing an application component

You can modify an application component definition by clicking its corresponding Edit link, which takes you to the Application Components > Edit page. In the Application Component Definition section, you can edit the application component name, set service level thresholds and select distribution configurations.

You can also modify the regular expressions that identify the application component. Select the check box that corresponds to an expression, and then click Delete to remove it. You can then replace it by adding regular expressions in the manner outlined in the previous section.

In the End-to-End Time Distribution Configuration and Processing Time Distribution Configuration lists, choose the appropriate distribution configuration for each of these metrics. See Distribution metrics.

Deleting an Application Component

To delete an application component from the list displayed in the Application Components page, select its corresponding check box and click Delete.

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