Re: monit unable to start Tomcat

[Ramesh B]

Thank you Martin. Your idea sparked some thought and eventually lead to the
fix.

All Tomcat needs for starting is JAVA_HOME environment variable. Here is a
snippet from /etc/init.d/tomcat

export JAVA_HOME=/appl/java

start() {
        echo -n $"Starting Tomcat Java server: "
        daemon su -c /appl/tomcat/bin/startup.sh dmsadm
        echo
        return $RETVAL
}

Though JAVA_HOME is set and defined in this file monit was unable to start
tomcat. (I still don't know why).

I wanted to try calling tomcat startup script directly from monit. so I've
added the following line to /appl/tomcat/startup.sh

export JAVA_HOME=/appl/java

Next change I made was to monitrc, where I've replaced 

# Tomcat
check process tomcat with pidfile "/var/run/tomcat.pid"
       start program = "/etc/init.d/tomcat start"
       stop program  = "/etc/init.d/tomcat stop"
       if failed port 8080 then alert

with 

# Tomcat
check process tomcat with pidfile "/var/run/tomcat.pid"
       start program = "/appl/tomcat/bin/startup.sh"
         as uid 528 gid 528
       stop program = "/appl/tomcat/bin/shutdown.sh"
         as uid 528 gid 528
       if failed port 8080 then alert

With these changes monit is now able to start, stop, restart tomcat without
any issues.
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