Network Deployment (Distributed operating systems), v8.0 > Troubleshoot and support > Diagnosing problems with message logs

View JVM logs

The JVM (JVM) logs are written as plain text files.

Use either of two techniques to view the JVM logs for an application server:

With WAS v8 you can configure the server to use the HPEL log and trace infrastructure instead of using SystemOut.log , SystemErr.log, trace.log, and activity.log files or native z/OS logging facilities. If you are using HPEL, you can access all of your log and trace information using $PROFILE/bin/


  1. View the JVM logs from the admin console.

    1. Start the admin console.

    2. Click Troubleshoot > Logs and Trace

      To view the logs for a particular server, click on the server name to select it, then click JVM Logs.

    3. Select the runtime tab.

    4. Click View corresponding to the log you want to view.

  2. View the JVM logs from the machine where they are stored.

    1. Go to the machine where the logs are stored.
    2. Navigate to the $PROFILE_ROOT/logs/server_name

      directory and select SystemOut.log or SystemErr.log.

    3. Open the file in a text editor or drag and drop the file into an editing and viewing program.

Use HPEL to troubleshoot applications


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