No output returned from plugin

[Olivier Mugabonake]

On 4/12/05, Marc Powell <marc at ena.com> wrote:
> 
> 
> > -----Original Message-----
> > From: nagios-users-admin at lists.sourceforge.net [mailto:nagios-users-
> > admin at lists.sourceforge.net] On Behalf Of Olivier Mugabonake
> > Sent: Tuesday, April 12, 2005 3:25 AM
> > To: Andreas Ericsson
> > Cc: nagios-users at lists.sourceforge.net
> > Subject: Re: [Nagios-users] No output returned from plugin
> >
> > Hello,
> > After testing all possible and imaginable ways to use check_nrpe
> > command to monitor a remote host, I think that the problem I have is
> > not in the way  I use check-rpe  but in my web based interface of
> > nagios:
> > Indeed, when I use check_nrpe in command line I got the right
> > information, but this is not case in my graphical interface.
> > This message is permenently written in my nagios home page:
> > >>Warning: Monitoring process may not be running!
> > Click here for more info.
> 
> What more verbose output does it give you when you follow the 'Click
> here for more info' link? That would be useful.

 Here is what I get when I click on the link in question:
mx1srv4 libexec # /usr/nagios/libexec/check_nagios_db.pl -h

Program Start Time:	04-12-2005 09:00:49
Total Running Time:	1d 6h 54m 58s
Last External Command Check:	04-13-2005 15:55:34
Last Log File Rotation:	04-13-2005 00:00:00
Nagios PID	15600
Notifications Enabled?	
  YES  
Service Checks Being Executed?	
  YES  
Passive Service Checks Being Accepted?	
  YES  
Event Handlers Enabled?	Yes
Obsessing Over Services?	No
Flap Detection Enabled?	No
Performance Data Being Processed?	Yes
	
Process Commands
It appears as though Nagios is not running, so commands are
temporarily unavailable...

Process Status Information
Process Status:	
  CRITICAL  
Check Command Output: 	Error: Cannot open status log for reading!  

In my /etc/nagios/nagios.cfg  the status file is /var/nagios/status.log 
But This file doesn't exist. when I try to create it manually, it's
removed when I restart nagios.


> > When I had a look on the nagios home page, I read that this message
> > was sent when there's no free disk space on the partition where nagios
> > is intalled.
> > However, there's enough disk space on my nagios server.
> 
> That's one of many reasons and probably one of the least likely.
> 
> > Now I would to know if there's a link between the error : nagios may
> > not be running (and this is not the case because the real status of
> > nagios is "started") and the fact that I can not monitor remote hosts.
> 
> The cgi's determine if nagios is running by executing the
> nagios_check_command as defined in cgi.cfg. There is more information on
> that command in the doccos and the file itself. What happens when you
> run that command manually? By default it checks for a running process
> and that the status file has been recently updated. If either of those
> checks fail it assumes that nagios isn't running properly. You may need
> to tweak the arguments to the command to match your ps output or, if
> you're using a DB backend, change the command entirely (to
> check_nagios_db.pl for example).
 
When I run this command, this is the output I get:
nagios-server libexec # /usr/nagios/libexec/check_nagios_db.pl -h
Can't open config file '/opt/nagios/etc/cgi.cfg': No such file or directory

This is the out put of ps:

nagios-server root # ps faux | grep nagios
root     14078  0.0  0.0   1432   476 pts/0    S+   16:03   0:00      
\_ grep nagios
nagios   15735  0.0  0.1   2700  1272 ?        Ss   Apr05   0:00
/usr/nagios/bin/nrpe -c /etc/nagios/nrpe.cfg --daemon
nagios    7723  0.0  0.0   1692   612 ?        Ss   Apr08   0:00
/usr/nagios/bin/nsca -c /etc/nagios/nsca.cfg --daemon
nagios   15600  0.0  0.3   6088  3400 ?        Ss   Apr12   0:26
/usr/nagios/bin/nagios -d /etc/nagios/nagios.cfg

Hope we'll find now what's wrong...

> Marc
> 
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::: Messages without supporting info will risk being sent to /dev/null