Change from HPEL to basic mode logging and tracing

Use this topic if we need to switch from HPEL to the basic mode log and trace framework. The basic mode log and trace framework is enabled by default when we set up a new application server.

Before beginning this task, read about the differences between HPEL mode and basic mode. Be aware of changes we might need to make to any tools and scripts that use HPEL files or commands.

We can switch to basic mode using the administrative console, or using wsadmin.sh. HPEL provides faster log and trace handling capabilities and more flexible ways to exploit log and trace content than the basic mode.

Tasks

• Use the administrative console to switch to basic mode.
  1. Log on to the administrative console.

  2. If using an administrative agent topology, select a node to manage and navigate to it.

  3. From the navigation section in the console click Troubleshooting > Logs and trace.

  4. Select the server to switch to basic mode.

  5. Click Change log and trace mode.

  6. Click Switch back to basic mode.

  7. Save the changes.

• Use wsadmin scripting to switch to basic mode. These steps modify the server configuration. The server does not need to be running to perform these steps.
  1. Start wsadmin. In this case, wsadmin can be connected to a running server or accessing the configuration data for a stopped server. Read about starting the wsadmin scripting client for more information.
  2. Get a reference to the HighPerformanceExtensibleLogging configuration object.

     Use Jython:

     HPELService = AdminConfig.getid("/Cell:myCell/Node:myNode/Server:
     myServer/HighPerformanceExtensibleLogging:/")
     

     Command	Description
     myCell	The name of the cell
     myNode	The host name of the node
     myServer	The name of the server

  3. Set the HighPerformanceExtensibleLogging enable attribute to false.

     Use Jython:

     AdminConfig.modify(HPELService, "[[enable false]]")
     

  4. Get a reference to the RASLoggingService object.

     Use Jython:

     RASLogging = AdminConfig.getid("/Cell:myCell/Node:myNode/Server:
     myServer/RASLoggingService:/")
     

     Command	Description
     myCell	The name of the cell
     myNode	The host name of the node
     myServer	The name of the server

  5. Set the RASLoggingService enable attribute to true.

     Use Jython:

     AdminConfig.modify(RASLogging, "[[enable true]]")
     

  6. Save the configuration.

     Use Jython:

     AdminConfig.save()
     

The server is now configured to use the basic mode log and trace framework when you restart.

If this task was done using the deployment manager, we might need to synchronize the node agent on the target node before restarting the server.

Related:

Basic mode and HPEL mode

Start the wsadmin scripting client