Re: 6.0.24 Pid [file] Problem

[Christopher Schultz <ch...@christopherschultz.net>]

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Emerson,

On 3/10/2010 4:59 AM, emerson cargnin wrote:
> We have a wrapper script that is in charge of starting and stopping tomcat.
> 
> Since we moved from 6.0.20 to 6.0.24 we started to get a few issues
> with the pid not been removed properly making the start script to fail
> and never starting tomcat.

It looks like this was added to the "start" portion of catalina.sh in
6.0.24:

  if [ ! -z "$CATALINA_PID" ]; then
    if [ -f "$CATALINA_PID" ]; then
      echo "PID file ($CATALINA_PID) found. Is Tomcat still running? \
Start aborted."
      exit 1
    fi
  fi

This is probably what you're running into.

> I know of the change that added a delay parameter to the start/stop
> steps. Is anyone aware of any other change that might had affected our
> wrapper script?

I think it's only a delay with "stop": I don't see anything in
catalina.sh to delay a start, but there is logic to wait for Tomcat to
stop and then remove the PID file.

The default sleep time is 5 seconds. If your webapp and/or Tomcat can't
shut down in that time, the pid file will remain. Have you tried
increasing the timeout? It looks like calling this from your script
would extend the sleep time:

$CATALINA_HOME/bin/catalina.sh stop 25

This will give Tomcat 25 seconds to stop.

You might want to use jstack to see what Tomcat is doing when its taking
a long time to shut down. Perhaps you can change your webapp to shut
down more quickly.

- -chris
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