Trying to figure out the PCRE expression for Nagiosgraph Map

[Claudio Kuenzler]

On Sat, May 11, 2013 at 1:30 PM, Percy Kwong <psk at psk.net> wrote:

>  OK.  So to make more sense of the whole thing, the only thing that is
> taken into account is the actual numerical value?  In other words, it's
> automatically parsed?  This is what I wasn't sure of.
>
> Here is the entry in the mapfile I was using:
>
> /output:PROCS.*:(\d+) processes with args 'apache'/
> and push @s, ['apache',
>                 ['connections', GAUGE, $1] ];
>

This works, too, when you only want to parse the process checks for apache.

You give the RRD description the name "connections". I don't think that the
number of Apache processes really represent the number of connections.
In this case, I suggest you use check_netstat.pl.



> the problem is there is no perfdata and the rrd file isn't being
> populated, (and obviously, no graph).  I'm attributing this to the fact
> that the map file entry is wrong.  This is really where my problem lies.
> Am I looking in the wrong place?
>

It's check_procs which doesn't create perfdata. You might  need to manually
patch it. See:
http://www.claudiokuenzler.com/blog/224/nagios-plugin-check_procs-add-performance-data-perfdata-output-nagiosgraph
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