Hi Steve, Some great tools to monitor your Tomcat installations are:
- Jconsole (make sure you get the topthreads plugin) - VisualVM - VisualGC - Jmap Hope that helps. On Tue, 2009-02-03 at 09:31 -0600, Steve Cohen wrote: > We have an application that runs under Tomcat under RHEL 5.0 and is > launched by a jsvc daemon. > It chugs along seemingly fine on several servers, yet yesterday crashed > on one of them with the above exception seemingly without experiencing > any kind of abnormal load. I am trying to get a handle on this. > System is > > $ uname -a > Linux 2.6.18-92.1.22.el5 #1 SMP Fri Dec 5 09:29:46 EST 2008 i686 i686 > i386 GNU/Linux > > Java version: > java -version > java version "1.5.0_16" > Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_16-b02) > Java HotSpot(TM) Client VM (build 1.5.0_16-b02, mixed mode, sharing) > > no special JVM memory settings are used when launching tomcat, just the > default memory allocations. I have read in some places that this > particular form of OutOfMemoryError is actually made worse by increasing > the memory size. > > I need to deploy some thread and memory monitoring setup to get a handle > on this. > > Can someone suggest a path forward here? > > Thanks. > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > -- Pieter Temmerman email: ptemmerman....@sadiel.es skype: ptemmerman.sadiel SADIEL TECNOLOGÍAS DE LA INFORMACIÓN, S.A. http://www.sadiel.es. --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
