In my experience, the PID can still exist of tomcat but a Java heap crash has stopped it responding.
Checking a PID will not check if the application is responding. You're better to do some sort of end to end monitoring On 22/09/10 10:03 PM, "Mendiratta, Shashank" <shashank_mendira...@intuit.com> wrote: Hi , I am working on a monitoring system to find out hung tomcat/apache processes . By this I mean if the PID exists and still the apache / tomcat is not responding that die to memory leak or variety of other reasons . Is their a tool to find this . Regards Shashank