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Foglight Experience Monitor 5.8.1 - User 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 Monitoring the user experience Customizing reports The alarm system Integrating the appliance SOAP-based web services

Metric Analysis

The Metric Analysis page allows you to search the database for extreme values of the selected metric.

Metric Analysis pages allow you to choose a filter that queries the database for extreme cases. Selecting Top or Bottom generates a list of resources with the largest or smallest values respectively for the selected metric.

The number of resources that are displayed are determined by the value of the box to the left of the filter. You can choose to display 5, 10, 20, or 40 resources at a time. When displaying a table view you can also choose to display All resources in the system, but this list may take some time to generate depending on the size of your site.

The filter box in the customization panel offers views of different extremities, depending on the chosen metric.

The precise meaning of each extreme depends on the metric currently being viewed. In the above example, the metric is time-based, thus selecting Top displays the content types with the highest (slowest) hit end-to-end times.

The Top (busiest) and Bottom (busiest) options are available for categories that could have a large number of resources (for example, Pages and Hits). These options allow you to focus your search on those resources that are the most active on your site. For example, a report on the Top (busiest) pages based on Page End-To-End Time display only those Pages that are most frequently downloaded, ranked by their respective download times. Pages that are rarely downloaded do not appear, even if one of them has a long download time associated with it.

When viewing a standard metric, you can see a box that allows you to modify the statistic that is being shown (for example, Mean, Minimum, Maximum, Standard Deviation). This feature works similarly to that found in the customization panel for the Metric View page. See Metric View.

For more information about metrics, see the Foglight Experience Monitor Metric Reference Guide.

The Time Period controls on a Metric Analysis page allow you to restrict a search to a specific time period. This function allows you to build a report showing resources with extreme values for a specific unit of time, for example, the slowest five web pages on Monday. The choices offered are outlined in Setting time and granularity.

For those categories that support HTTP and HTTPS data, a list appears that allows you to control which subset of data is displayed.

Using the User Sessions Log

The User Sessions Log, accessed from the Analysis menu, allows you to view and search through user sessions recorded by the appliance. See “Non-system category metrics” in the Foglight Experience Monitor Metric Reference Guide for information about that metric category.

The appliance typically captures a user session when it has triggered an alarm, but you can configure the appliance to capture all user sessions if that report is appropriate for your site.

The User Sessions Log displays information about up to 1000 sessions per page, starting with the most recent recorded user session. Click previous 1000 and next 1000 to navigate through the log entries in order.

The following table outlines the type of information that can be displayed for each captured User Session.

Stop Time

The date and time the User Session terminated.


The identifier for the User Session.

Clicking the identifier takes you to the All Metrics View page for that User Session.


The name of the alarm triggered by the User Session.


The originating subnet of the User Session.


Name of server that the User Session utilized.


The originating city of the User Session.


The number of page downloads attempted by the user during the session.

You can select which information is displayed in the User Session Log by clicking the Customize display link and editing the display settings in the User Sessions Log > Edit page. For more information, see Customizing the display of the User Session Log.

For more details, refer to these topics:

Refining the User Sessions List

Use the controls in the Criteria section of the page to refine the information displayed.

Select an option from the Alarms list to restrict the list to those user sessions generated by a specific alarm definition. Select All to display user sessions generated by the any alarm definition. Select None to display user sessions that did not generate any alarm.

The Identifier box allows you to search for user sessions based on their identifier. This may be the user’s login name if that feature has been enabled. If a login name is not available, the user’s IP address is used. For information about how user sessions are identified, see “Identifying user sessions” in the Foglight Experience Monitor Installation and Administration Guide.

The City box allows you to search for user sessions originating in a specific city. To select a specific city, click the Select link to the right, and select the name of that city from the list.

The Server box allows you search for user sessions attached to a specific server. To select a specific server, click the Select link to the right, and select the IP address of that server from the list.

The Subnet box allows you to search for user sessions originating in a specific subnet. To select a specific subnet, click the Select link to the right, and select the IP address of that subnet from the list.

Select an option from the Time Period list (Last 15 minutes, Last 30 minutes, Last 45 minutes, Last Hour, Last 2 Hours, or Last 4 Hours), or use the Time Range lists to define start and end times, as well as the date of the log.

When all the criteria have been defined, click Go to regenerate the log display.

Customizing the display of the User Session Log

This page allows you to:

To save the new settings selected, click OK.

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