Hello,
our tomcat, in a test environment, is shutting down unexpectedly. There
is no messages about stopping webapp, or even receiving SHUTDOWN message
from management port. It's just normal webapp behaviour in logs and
that's all. We notice this when someone comes in and says reserver does
not respond, whe check processes (a linux 32bits box), and no track of
the jvm. No specific operation seems to trigger it. The jvm is not
dying, cause that would have led to the presence of a pid.log file and
messages in catalina.out. It's not the webapp calling System.exit,
because tomcat runs with a security manager that forbids system.exit
from webapps.
We have no clue on how to get reason of this shutdown. I have attached
now a shutdown hook that will call an external script that itself will
ask jvm for a dumpstack (kill -3), in the hope we get some information.
But our tries with "regular" shutdown seems to point that jvm ignore
such request when it's processing the shutdown hooks.
Any suggestion on tracking this greatly appreciated.
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