Bradley Wagner wrote: > Mark, > Sorry, I should have mentioned this before, but in all cases I tried the > thread dumps 2-3 times at least 30s apart and none of the threads have > progressed at all.
Hmm. That smells like a JVM issue to me, particularly if it goes away when you use JPDA. Things to try: - use a 1.6 JVM - try different JVM settings, particularly GC related ones - switch to/from client from/to server JVM Mark > > - Bradley > > On Mon, Aug 31, 2009 at 3:52 PM, Mark Thomas <ma...@apache.org> wrote: > >> Bradley Wagner wrote: >>> Ok, I have some information to add here. I was able to get thread dumps >> with >>> "jstack <pid>" (very handy!) because "kill -3" wouldn't work on a hung >>> process. >>> I've listed 3 consecutive tests that I run and the thread is blocked at >> the >>> time the process is hung. >> That isn't the way to analyse this. It is almost impossible to detect a >> hung thread from a single thread dump. >> >> For a single hang, take three thread dumps ~10s apart and then examine >> those to see which thread(s) has(have) not progressed between dumps. >> >> Mark >> >> >> >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org >> For additional commands, e-mail: users-h...@tomcat.apache.org >> >> > > --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
