By default, changes you make on the Logging page stay in effect until the next application-server restart or user-application redeployment. After that, the log settings revert to their default values.
But the Logging page does offer you the option of persisting your changes to its settings. If you turn on this feature, values for the log settings are stored in a logging configuration file on the application server where the Identity Manager user application is deployed. For example:
jboss/server/IDM/conf/extendlogging.xml
Go to the Logging page.
Check or uncheck the following setting, as appropriate:
Persist the logging changes
Click Submit.