Does anyone know any reason why tomcat might stop responding or any way I can find out why this is happening?
Tomcat seems to run fine for many weeks before falling over but it has happened a few times now.
I have seen this question http://stackoverflow.com/questions/3063073/tomcat-6-hangs-after-a-few-hours which seems to be the same problem I am having but I can't figure out how to run jstack.
This is on windows server 2008 with tomcat 2.0.28 running with jdk 6.0.20. Tomcat is running as a service logging on as a local user called tomcat_user. This user has the login as a service priv and is not a member of any groups. I tried adding the user to the administrators group but still get access denied.
From the command line I tried runas /user:servername\tomcat_user
Then when I run jps I get this output:
4476 -- process information unavailable
1540 Jps
Both jstack 4476 and jmap -histo 4476 give the same error:
4476: Access is denied