Redirecting JVM Output

The JVM in which a WebLogic Server instance runs, sends messages to standard error and standard out. Server as well as application code write directly to these streams instead of using the logging mechanism. Through a configuration option, you can redirect the JVM output to all the registered log destinations, like the server terminal console and log file. When enabled, a log entry appears as a message of NOTICE severity. Redirecting the JVM output does not capture output from native code, for example thread dumps from the JVM.
For example, to redirect the JVM standard out messages:

  • When you start the Administration Server, include the following Java option in the weblogic.Server command:

-Dweblogic.log.RedirectStdoutToServerLogEnabled=true

See "weblogic.Server Configuration Options" in Command Reference for Oracle WebLogic Server.

  • After the Administration Server has started, use the Administration Console to redirect the JVM standard out messages. See "Redirect JVM output" in the Oracle WebLogic Server Administration Console Online Help.
  • Use the WLST to change the value of the RedirectStdoutToServerLogEnabled property of the LogMBean and re-start the server.

The WLST commands in Example 3-6 redirect the JVM standard out messages in the Administration Server to the server logging destinations. Read the full documentation here.

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Comments:

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Posted by guest on April 09, 2013 at 10:34 AM BST #

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