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From Jakub Królikowski <>
Subject Tomcat 6 crash, no log, no hs_err_pid file
Date Thu, 05 May 2011 00:19:59 GMT

I made an Tomcat and JVM upgrade few weeks ago (to Tomcat 6.0.32 and
jdk, and since that time I can notice a very strange
sometimes, even once a day, Tomcat stops suddenly. There is no java
process anymore, there is no errors in catalina.out log file,
and, what is the most confusing, there is no hs_err_pid*.log file
anywhere, or I cannot find it.
Before upgrade, if jvm crashed, the hs_err_pid*.log file was always in
root home directory.

In mod_jk.log I have only this kind of message:

[Thu May 05 01:10:38 2011] [16891:140430015608640] [info]
ajp_connection_tcp_get_message::jk_ajp_common.c (1223): (worker1)
can't receive the response header message from t
omcat, tomcat ( has forced a connection close for socket 15
[Thu May 05 01:10:38 2011] [16891:140430015608640] [error]
ajp_get_reply::jk_ajp_common.c (2055): (worker1) Tomcat is down or
refused connection. No response has been sent
to the client (yet)
[Thu May 05 01:10:38 2011] [16891:140430015608640] [info]
ajp_service::jk_ajp_common.c (2540): (worker1) sending request to
tomcat failed (recoverable),  (attempt=1)
[Thu May 05 01:10:38 2011] [16891:140430015608640] [info]
jk_open_socket::jk_connect.c (622): connect to failed
[Thu May 05 01:10:38 2011] [16891:140430015608640] [info]
ajp_connect_to_endpoint::jk_ajp_common.c (959): Failed opening socket
to ( (errno=111)
[Thu May 05 01:10:38 2011] [16891:140430015608640] [error]
ajp_send_request::jk_ajp_common.c (1585): (worker1) connecting to
backend failed. Tomcat is probably not started
or is listening on the wrong port (errno=111)

In other words - I cannot find any trace of tomcat crash in any log.
Can you help with looking for it? Maybe hs_err_pid*.log is in some not
obvious place.

This is my enviroment, takes with JMX:

VM arguments:
-Xmx3000m -Xms1500m -Xmn700m -XX:PermSize=768m -XX:MaxPermSize=1000m
-XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode
-XX:+CMSIncrementalPacing -XX:CMSIncrementalDutyCycleMin=0
-XX:CMSIncrementalDutyCycle=10 -XX:+UseParNewGC
-XX:+CMSClassUnloadingEnabled -XX:MaxGCPauseMillis=250
-Dcatalina.base=/usr/lib/tomcat -Dcatalina.home=/usr/lib/tomcat

Class path:

Library path:

Boot class path:



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