When you create or modify a dashboard, select and configure the Application Server Health dashlet to display key performance indicators for application servers that are monitored by App Visibility Manager. You can see a list of applications that use a selected server, and see graphs of the following metrics over time:
This topic presents the following information about this dashlet:
The Application Server Health dashlet provides a general overview of an application server, displaying basic server metrics and a summary of application use on the server.
The following image is an example of the Application Server Health dashlet:
Application Server Health dashlet
A single instance of the dashlet displays four graphs of key performance indicators over time, as follows:
Total number of hits on the server
Percentage of CPU usage on the server:
Percentage of total transactions on the server with latency violations and errors
Memory usage, in megabytes, of the server:
The selected time filter in the image is set to the last two days, which is determined by the dashboard Time Period setting. For more information about setting the time for the dashboard, see Adding and modifying dashboards.The upper part of the dashlet displays the following general information about the application server:
If the application server is currently offline, the severity and uptime are not displayed, and the following indicators are displayed instead:
You can examine data in the dashlet by performing the following tasks:
The applications that use the selected application server are displayed in the upper part of the dashlet, under the server name. Click an application name to see the application server selected in the Application View.
If no applications use the server, or if you do not have permission to access applications that use the server, N/A (not applicable) is displayed.
Only the applications for which you have permissions are displayed, yet the graphs display the total values for all applications that use the server—that is, you can see the number of hits, percentage of latency violations, and percentage of errors.
If you do not have permission to view any of the applications that use the server, the dashlet graphs still represent the total use on the application server.
Hover over a point in a graph to see the value and time.
Hover over a point in a graph and the graph's legend displays values for all the items.
Click an item in the graph legend to hide or show data on the graph. In this way, you can hide data that is not relevant to you or you can separate overlapping data points, which might be useful on the graph showing the percentage of latency violations and errors. The data points are displayed again the next time that the page or dashlet is refreshed.
Drag horizontally over a graph to zoom in to a specific time frame. To return to the standard view, click Show all in the upper-right side of the graph.
The Application Server Health dashlet requires application servers on which an App Visibility agent for Java or .NET is installed.
When you configure the dashlet, you select an application server. The dashlet is not affected by a dashboard's application filter.
You can configure this dashlet when you add or edit a dashboard.
Click the Configure Dashlet icon.