How to turn on debug and trace logging for weblogic?

I understan开发者_开发技巧d there are very many ways to do this- just not very clear to me which ones I should use. Some of the answers on google dont work and the docs on the site are murky to me. thanks

the quickest way is to specify a JVM System property of the type -Dweblogic.debug.YOURSUBSYSTEM and also -Dweblogic.log.StdoutSeverity="Debug"

or in alternative set it from the WebLogic console in the server/debug/weblogic/YOURSUBSYSTEM and remember to set the log severity level to Debug, for the server you are troubleshooting

This differs on the version of WebLogic you are using. For >= 9.2, click on the Server and go to the Debug tab.

Here you can expand the trees and enable very detailed and specific logging. Hope that helps.