Tomcat5 Hangs Redhat 5.5

nade · 04-11-2011, 03:21 PM

I'm running SpaceWalker which executes this perl script

PHP Code:


			
echo "Waiting for tomcat to be ready ..."



while [ -f "/var/run/$TOMCAT.pid" ] ; do

    /usr/sbin/lsof -t -i TCP:8009 -p $(cat /var/run/$TOMCAT.pid) > /dev/null && break

        sleep 1

done

This just hangs.. and hangs..

I tried changing the lsof command to

PHP Code:


			
/usr/sbin/lsof -t -i @localhost:8009 -p $(cat /var/run/$TOMCAT.pid) > /dev/null && break

No difference. This is a VM host that I built of a template that someone made a long time ago. Is there any configuration I might have missed ie: iptables settings ?

My etc/hosts file:

PHP Code:


			
# Do not remove the following line, or various programs

# that require network functionality will fail.

127.0.0.1               localhost.localdomain localhost

142.229.134.184 template_rh5_64-bit     template_rh5_64-bit.secretplacelol

MensaWater · 04-13-2011, 08:57 AM

It appears you're trying to restrict the output to be for the PID of tomcat. To do that you need to use the "-a" ("and") flag:

Code:

/usr/sbin/lsof -t -i TCP:8009 -a -p $(cat /var/run/$TOMCAT.pid)

Also you don't really need to provide "TCP" or "localhost" if all you're interested in is the port - you can just put ":8009":

Code:

/usr/sbin/lsof -t -i :8009 -a -p $(cat /var/run/$TOMCAT.pid)

Finally you're doing a while loop - this means as long as the condition is true it will repeat the loop. It may be what you're thinking is a "hang" is in fact just an infinite loop. Since I don't know the purpose of your script I can't tell if you intended such a loop.

Also the output of the command would simply be the pid of the process. I'm assuming your intent is to verify that the port is open and associated with the Tomcat process. If you only want to know the PID it is already predetermined in your /var/run/$TOMCAT.pid file.