Update: tomcat startup

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Date: Tue, 10 Aug 2004 16:43:10 +0100
To: "'tru64-unix-managers@ornl.gov'" <tru64-unix-managers@ornl.gov>

   I have done some pretty exhaustive - and exhausting - tesing on this
little issue and I think I will probably give up at this stage. Further
things that were suggested by people(see ACK list below) included:
 
                 - add 'sleep' after the init startup call
                 - trap HUP in the init script
                 - trap HUP in all of the startup scripts (startup.sh,
catalina.sh)
                 - check the environment settings during startup are as
should be
                 - check Apache startup is after tomcat - and after a delay
                 - check the shell is /bin/sh
                 - check the tomcat logs (always fails just before Coyote
server is started)
                 - check the symbolic links in /sbin/rc3.c etc.
                 - look at how HP Internet Express Apache is started for
comparison
                 - use the Java Service Wrapper (free)
 
  I have tried all of those but the last two. (On the Apache side, although
we run Apache on this system, it is not for the benefit of tomcat. I took
the Apache startup out
altogether, to no avail.)
 
  The relevant extract of the init script now looks like this:
 
    <snip>
                         #!/bin/sh
                         trap 'echo tomcat_init >> /tmp/trap' 1
                         CATALINA_HOME=/web/tomcat
                         export CATALINA_HOME
                         JAVA_HOME=/usr/opt/java141
                         export JAVA_HOME
 
 
                         case "$1" in
                                'start')
 
                 echo "Starting Tomcat...."
                 su - tcmgr -c "nohup $CATALINA_HOME/bin/startup.sh >
/tmp/tomcat_start.log &"
                 sleep 30
                 ;;
    <snip>
 
  I get the expected tomcat startup lines in /tmp/tomcat_start.log.
  Nothing ever arrives in /tmp/trap, including using the same trap in the
tomcat scripts.
 
 One interesting point I discovered is that whichever way I set up the init
script (either to run the startup as root, or to use 'su - application_user
-c' ) the net result is that it *always dumps core* when it terminates. This
is consistent with what happens if I start it manually after boot time, then
send it a HUP. So it suggests that a HUP is somehow getting through to the
final java invocation. Perhaps I need to get a later JVM version. Ah well.
 
 Many thanks to : Narendra Raavi, Andy Wagg, Joachim Jaekel, Judith Reed Tom
Swigg, Joseph A. Senulis, John L.Lanier, Zoong Pham, Bevan Broun, and Oisin
McGuinness.

  I do appreciate it.
         
  Cheers for now
 
       Lindsay

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