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Re: Monit Can't Stop Apache

From: David Fletcher
Subject: Re: Monit Can't Stop Apache
Date: Mon, 28 Feb 2005 23:17:36 +0000

Hi Chris,

I'm not sure this will cure your problem with the pid file, but I include this
in the Apache start-up script (/etc/rc.d/rc.httpd) to cope with the case of
the stored PID file pointing to a process which is not httpd, or which
doesn't exist. 

The variables $CHROOT and $PIDFILE are defined higher up in the start-up
script to point to the location of the pid file, and also the chroot jail in
which Apache runs. Just set $CHROOT to an empty string if you don't use a

#Check that an old PID file has not got left after power outage etc.
#If a PID file exists, check it points to a running httpd
if [ -f $CHROOT$PIDFILE ] ; then
    PIDPROC=`ps -p $PID -o comm --no-headers 2>/dev/null`
    if [ "x$PID" != "x" ] && [ "x$PIDPROC" != "xhttpd" ] ; then
        #pid points to a valid process, but it is not httpd
        rm $CHROOT$PIDFILE 2>/dev/null

I place it just before the line which starts in /etc/rc.d/rc.httpd

case $ARGV in

so it is executed for any start/stop/restart.



address@hidden wrote:

> Monit does not see the process corresponding to the pid in 
> the run file.  So it does not call httpd stop.  Therefore when httpd 
> restart is called it fails.

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