Thanks for your quik answer. In our search for the cause of the problem we changed the original daily rolling file for a single rolling file, increasing the max file size parameter to 100 Mb.: We're using another one: <!-- Original --> Yes, I'm using tail -f server.log for a kind of monitoring process, becouse or the problem. I've noticed that there is a message just before it stop logging: "ERROR: invalid console appender config detected, console stream is looping". I'm sorry for know nothing about Mbeans. And finally, yes, we use jboss-log4j.xml file. Thanks again View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4231389#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...