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Function documentationMonitoring the Application Server with the SAP MC Locate this document in the navigation structure

 

With the monitoring options provided by the SAP Management Console, several main monitoring scenarios are available.

Prerequisites

The SAP Management Console is started and the systems to be monitored are registered.

Activities

Request or Response Monitoring

You can use this scenario to monitor the requests executed by the applications deployed on the application server, and to check the status of the application threads that are processing these particular requests.

  • To locate your application, in the navigation view, choose the instance   AS Java   Aliases   node. The result view displays the started web applications, their aliases, and other details. You can open an application in a browser directly from this table just by double-clicking the corresponding entry line. However, to be able to launch the application successfully, it has to provide an index page — otherwise you will end up with an 403 Forbidden error page.

    More information: Launching Deployed Applications from the SAP MC

  • To monitor the Web, EJB, and remote object requests of your application using HTTP and RMI, in the navigation view, choose the Sessions, EJB Sessions, or Remote Object nodes from the AS Java tree structure. The result view displays details about the incoming requests.

  • To monitor the threads that process the requests, in the navigation view, select the Threads node from the AS Java tree structure. Locate the threads that serve the incoming requests (if necessary, use the column filter options). Details about the threads, such as the task executed by the thread, start time, user triggering the request, status, and so on, are displayed in the result view.

System Monitoring

You can use this scenario to monitor the system performance and operations.

  • To monitor the status of the Java processes, from the AS Java tree structure, choose the Process Table node.

  • To view the overall cache and thread system information, from the AS Java tree structure, choose the Caches or Threads node.

  • To view the overall VM performance, from the AS Java tree structure, choose the GC History or Heap Memory node.

System State Monitoring

The SAP MC provides alert monitoring information based on predefined thresholds. With the SAP MC you can view the current state of the system as well as the most severe alerts existing in the system.

  • To monitor the current data reported for every monitored tree element, expand the Current Status tree structure and choose the relevant tree element. In the result pane, the SAP MC displays the current state of the system and the most severe current alerts. The table in the result view displays the relevant monitors, their value, and the time the value was last measured.

  • To monitor the most severe alerts in the system, expand the Open Alerts tree structure and choose the relevant monitor. In the result view, the SAP MC displays the most severe alerts that have occurred in the system. The table in the result view displays the relevant monitors, their values, and the time the alert last occurred. This view does not necessarily reflect the current state of the system.

If the system has generated no alerts, the table in the result view only displays the name of the relevant monitor.

If the predefined levels are not suitable for your needs, you can configure the threshold values. You can also activate or deactivate monitors that are important for your scenario from the Java System Reports.

More information: Managing Monitors with the Monitor Browser

Database Monitoring

The SAP system tree structure in the SAP MC includes a node in a special blue color for the database server. To view detailed information, select the Database node. The result view displays the server type, the database instance host, the database vendor, and the SID.

Note Note

Database monitoring is only available if the SAPHostControl is installed and running on the DB server host.

End of the note.
SAP AS Java Health Check

The SAP MC summarizes some of the crucial JVM parameters beneath the “Monitors” node of the AS Java server node.

These include:

  • The memory throughput in MB/minute (1 GB/minute)

  • The ratio between garbage collection time and working time (1%)

  • The ratio of used and available heap memory (98%)

  • The ratio of used and available class memory (90%)

  • The number of long running busy threads (3 threads running longer than 30 seconds)

  • The number of log records written per second (100)

If one of these values exceeds its limit, the instance will be highlighted with an error marker. You can change the limits for all systems or for a specific system using the Configure context menu of the monitor entry.

ICM Monitoring

In the SAP MC you can view basic monitoring information about ICM operation under the ICM mode.

  • To display information about the created worker threads, choose the Thread List sub-node.

  • To display information about the existing connections, choose the Connection List sub-node.

  • To display information about all objects currently in the ICM Server Cache, choose the Cache List node.

  • To display information about the proxy server list, choose the Proxy List sub-node.