Web Container

Going to the Web Container Page

1. Log in to the management console.
2. Click on the left and choose Management & Deployment > Application Performance Management.
3. In the navigation pane, choose Application Monitoring > Metrics.
4. In the tree on the left, click next to the target environment.
5. Click the Web Container tab. By default, the Tomcat monitoring information of all instances is displayed. For details about the metrics, see Table 1.

   Table 1 Tomcat monitoring parameters

   Metric Set	Metric	Description
   Tomcat port monitoring	name	Port name.
   	Current Threads	Number of current threads on the port.
   	Busy Threads	Number of busy threads on the port at the time of collection.
   	Peak Busy Threads	Maximum number of busy threads on the port in a collection period.
   	Max Threads	Maximum number of threads on the port.
   	Max Connections	Maximum number of connections on the port.
   	Current Connections	Number of current connections of the port at the time of collection.
   	Peak Connections	Maximum number of connections on the port in a collection period.
   Version	Version	Tomcat version.

   • Click a number in blue (such as those in the Current Threads, Busy Threads, or Peak Busy Threads column) to view the trend graph of the target web container in the specified period.
   • Click a version in the Version column to view details.

6. On the displayed Web Container tab page, select a target instance and monitoring item to view the monitoring data in different metric sets.
7. Select a time range. Default: Last 20 minutes.

   Options: Last 20 minutes, Last hour, Last 3 hours, Last 6 hours, Last day, Today, Yesterday, Last week, Last month, or Custom.

   Figure 1 Selecting a time range
   

8. Click in the upper right corner of the list and select the metric data you want to view.