> From: Bradley Wagner [mailto:bradley.wag...@hannonhill.com] > Subject: Re: 100% usage and hanging on startup of Spring/Hibernate app > in Tomcat 5.5 on Ubuntu 7 > > Maybe it can't connect when it's hung.
Quite possible; GC stops all threads, so the JMX agent may well be suspended. You might want to try turning on pretty much all of the GC-related trace flags: -XX:+PrintGC -XX:+PrintGCDetails -XX:+PrintGCTimeStamps -XX:+PrintGCTaskTimeStamps -XX:+PrintReferenceGC -XX:+TraceGen0Time -XX:+TraceGen1Time -XX:+PrintTenuringDistribution -XX:+PrintHeapAtGC -XX:+TraceParallelOldGCTasks -XX:+PrintParallelOldGCPhaseTimes (All on one line, of course.) This will produce a *lot* of output. - Chuck THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers. --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
