nrpe custom command problems

[Jeff McKeon]

nrpe runs under the user nagios, at least thats whats in the xinetd
startup script.  It is a /bin/bash shell script.  If I take out the
mysql command from the scrip nrpe runs it fine.  The problem seems to be
that nrpe doesn't recognize the mysql command as a real command.  Why
this matters I'm not sure because shouldn't nrpe just run the script and
wait for output?

I haven't tried to run it with check_by_ssh because OpenSSH on the
target machine is very old, has never been set up correctly and I really
don't want to start patching the hell out of a machine I'll probably
just rebuild in a month or two (If I have my way).  Long story there,
classic battle between development and operations.

On Tue, 2002-12-17 at 16:29, Carroll, Jim P [Contractor] wrote:
> What user do you normally run nrpe from?  When you tested the plugin, did
> you test it under that user?  Can you kick off your command from your Nagios
> server using check_by_ssh?  (You'll need to set up a null passphrase in
> order for this to work.)
> 
> What's the plugin written in?  If it's a /bin/bash script, try changing that
> to /bin/sh .
> 
> Will the plugin run if invoked using 'at' or 'cron'?
> 
> Food for thought.
> 
> jc
> 
> > -----Original Message-----
> > From: Jeff McKeon [mailto:jsm at inpro.net]
> > Sent: Tuesday, December 17, 2002 11:54 AM
> > To: Nagios List
> > Subject: [Nagios-users] nrpe custom command problems
> > 
> > 
> > Hey all,
> > 
> > I've written a plugin for nrpe to check the records in a 
> > database table
> > and then report warning or critical based on how many records are
> > returned.  The table is basically a mailserver pending message queue. 
> > The plugin, check_msgcount works fine if invoked by itself.  However
> > when I try to run it with check_nrpe localhost -c check_msgcount it
> > crashes out..  any ideas why?
> > 
> > nrpe is working fine with the standard plugins, check_disk etc...
> > Also, I did restart xinetd after adding the command line to the
> > nrpe.cfg.
> > 
> > *******************
> > 
> > nrpe.cfg file:
> > 
> > command[check_pendingmail]=/usr/local/nagios/libexec/check_msgcount
> > 
> > ******************
> > 
> > if I run /usr/local/nagios/libexec/check_msgcount by itself 
> > it all runs
> > fine.  
> > 
> > If I run /usr/local/nagios/libexec//check_nrpe localhost -c
> > check_pendingmail as in below, the following happens...
> > 
> > [root at db02tc07927 libexec]# ./check_nrpe localhost -c 
> > check_pendingmail
> > s/libexec/check_msgcount: mysql: command not found
> > /usr/local/nagios/libexec/check_msgcount: [: -ge: unary operator
> > expected
> > /usr/local/nagios/libexec/check_msgcount: [: -ge: unary operator
> > expected
> > 
> > 
> > the check_msgcount file is this:
> > 
> > ******************************************************************
> > 
> > #! /bin/sh
> > mysql telaurus -u nagios < /usr/local/nagios/libexec/messages.sql >
> > /usr/local/nagios/libexec/msg_count
> > 
> > numqueued=`grep -v COUNT /usr/local/nagios/libexec/msg_count`
> > 
> > if [    $numqueued -ge 2 ]; then
> >         echo "CRITICAL: $numqueued waiting messages in seaCOMM"
> >         exit 2;
> > fi
> > 
> > if [    $numqueued -ge 10 ]; then
> >         echo "WARNING: $numqueued waiting messages in seaCOMM"
> >         exit 1;
> > fi
> > 
> > echo "OK: $numqueued waiting messages in seaCOMM"
> > exit 0;
> > 
> > *********************************************************
> > 
> > 
> > 
> > 
> > 
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