Check not running

[Mike Chesnut]

Any ideas how I could debug a check that works when using 
capture_plugin.pl, but never gets scheduled or run otherwise?

Thanks,
Mike

Mike Chesnut wrote:
> I have a check that never runs.  The services I've defined that use it 
> sit at the top of the scheduling queue, with their next check always 
> within a few minutes of the last time I restarted nagios.  This remains 
> the case even if I reschedule their next check time in the web interface 
> (while I see a line in the log file confirming that I rescheduled it, 
> the "next check" does not update and the check is never run).
> 
> The check is defined like this:
> 
> command_line   /etc/nagios/plugins/check_snmp_byportname.pl --host 
> $HOSTADDRESS$ --community mycommunity --port $ARG1$
> 
> What's really weird is that if I change it to use Wolfgang Wagner's 
> capture_plugin.pl*, then everything works as expected.  I change the 
> above to this:
> 
> command_line    /etc/nagios/plugins/capture_plugin.pl 
> /etc/nagios/plugins/check_snmp_byportname.pl --host $HOSTADDRESS$ 
> --community mycommunity --port $ARG1$
> 
> and then I am able to see the output in /tmp/camptured-plugins.log, the 
> status updates in nagios, these checks get cycled through the scheduler 
> queue normally, and everything is as it should be.
> 
> check_snmp_byportname.pl is a script I've written that's essentially 
> just a wrapper around the stock check_snmp.  It works on its own (from 
> the command line) as expected, and works when called with 
> capture_plugin.pl as a wrapper.
> 
> If I then remove the capture_plugin.pl part of that command definition 
> and restart (and this is the *only* change I'm making), then this 
> particular check goes back to not working (while everything else 
> continues to work as normal).
> 
> This is on Nagios 2.9 (I'm using the rpm provided by Dag Wieers, on 
> CentOS 5.2).
> 
> What else can I do to debug this?  I thought that using capture_plugin 
> would show me what was wrong with this check, but instead it just showed 
> me that nothing is wrong, apparently.  I'm kind of confused at this point.
> 
> Sorry this is so long.  I wanted to try to include as much information 
> and observations as possible.
> 
> Thanks in advance for the help,
> Mike
> 
> * - from here: http://www.waggy.at/nagios/capture_plugin.htm
> 
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------------------------------------------------------------------------------
Crystal Reports - New Free Runtime and 30 Day Trial
Check out the new simplified licensing option that enables unlimited
royalty-free distribution of the report engine for externally facing 
server and web deployment.
http://p.sf.net/sfu/businessobjects
_______________________________________________
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Nagios-users at lists.sourceforge.net
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::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. 
::: Messages without supporting info will risk being sent to /dev/null