Using NRPE to call remote event_handlers

[Mark Pearson]

Oh and yes I did configure nrpe with the enable commands.  In fact, I use
args with nrpe on plugins but this problem is with the event handlers.

 

Here is a copy of my event handler:  But like I mentioned before, this
script works running locally but via check_nrpe from the central monitoring
machine it doesn't work.

 

#!/bin/sh

#

# Event handler script for restarting the web server on the local machine

#

# Note: This script will only restart the web server if the service is

#       retried 3 times (in a "soft" state) or if the web service somehow

#       manages to fall into a "hard" error state.

#

set -x

 

# What state is the HTTP service in?

case "$1" in

OK)

        ;;

WARNING)

        ;;

UNKNOWN)

        ;;

CRITICAL)

        # Is this a "soft" or a "hard" state?

        case "$2" in

        SOFT)

 

                case "$3" in

                2)

                        echo -n "Restarting Krang service (2rd soft critical
state)..."

                        sudo /etc/rc.d/init.d/krang restart

                        ;;

                        esac

                ;;

 

        HARD)

                echo -n "This server would be failing over to the other node
right now" | /usr/bin/logger -t $TAG

                #       echo -n "Failing over to backup node ..."

                #       sudo /usr/lib/heartbeat/hb_standby

                ;;

        esac

        ;;

esac

exit 0

  _____  

From: Mark Pearson [mailto:Mark.Pearson at uftwf.org] 
Sent: Saturday, December 03, 2005 9:46 AM
To: 'Nagios Users Mailing List'
Subject: RE: [Nagios-users] Using NRPE to call remote event_handlers

 

I am using a sudo in the script as I can run the script that is in the
nrpe.cfg on the machine in question however, when I try to run it via the
check_nrpe command the remote script does not seem to run.

 

1)      How does everyone else restart services on remotely monitored
computers?  i.e. the Nagios monitor is running on a computer in NY and the
remote computer is in CA.  If the httpd service stops how would you use
nagios to restart the service?

2)      Is there a way I can debug the remote client to see where the
problem is?

 

Thanks for the reply.

 

  _____  

From: moshe sharon [mailto:moshesharon at gmail.com] 
Sent: Tuesday, November 22, 2005 1:44 AM
To: Nagios Users Mailing List
Subject: Re: [Nagios-users] Using NRPE to call remote event_handlers

 

Hello

 

First nrpe only returns one line from output so if your restarting procedure
returns multiple lines you wont see all the lines from the check_nrpe.

second i see you are passing arguments with -a did you enable nrpe with
command arguments ?

and final you can call sudo before your script "/usr/bin/sudo
/usr/local/nagios/libexec/check_disk ..." other then that seems you doing it
perfectly fine

 

Moshe Sharon



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The views, opinions, and judgments expressed in this message are solely
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The views, opinions, and judgments expressed in this message are solely those of the author. The message contents have not been reviewed or approved by the UFT Welfare Fund.
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