JBoss AS uses Log4J to do its logging. What appenders are you using? The default FILE appender uses a daily rolling file appender - thus at midnight you get a new log file. In one way this might appear as if logginf stopped (if you are doing something like 'tail -f server.log'). Also, there is a MBean that can be used to control logging. Anyone can use that MBean to change the log settings. You can secure the JMX invoker to limit this capability. Finally, how did you go about getting logging for your apps? By modifying the jboss-log4j.xml file, or by some other mechanism? View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4231379#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...