[Nagiosplug-help] Understanding RRD conversion in map def of nagiosgraph

[Peter Ringe]

Hi Raplh,

the plugin delivers e.g. "1234 ms", $2 will catch 1234.
to geht the value in seconds, you have to devide by 1000
so nagiosgraph will store 1.234 (or more continetal style 1,234)
in the rrd.

regards ,

Peter


Ralph.Grothe at itdz-berlin.de schrieb:
> Hello,
> 
> I am currently installing nagiosgraph.
> 
> The sample Perl script that defines perfdata regex matches to
> populate rrd files
> and which comes in a file simply called map
> has one match for the check_ping plugin's output (which I don't
> use)
> that looks like this:
> 
> 
>   /output:PING.*?(\d+)%.+?([.\d]+)\sms/
>   and push @s, [ ping,
>                 [ losspct, GAUGE, $1      ],
>                 [ rta,     GAUGE, $2/1000 ] ];
> 
> 
> accompanied with this explanatory comment:
> 
> In this case the database name is called 'ping' and the DS-names
> stored 
> are losspct and rta. The Nagios output reports round trip time in
> 
> milliseconds, so the value is multiplied by 1000 to convert to
> seconds. 
> Both DS type are GAUGE.
> 
> 
> 
> I defined a similar regex for check_icmp.
> However, what I don't understand is that the second match in $2,
> which is the RTA in ms, is devided by 1000 before pushed in the
> anon array ref onto @s.
> For my understanding it should rather be multiplied by 1000
> to convert from ms to s.
> Where am I mistaken?
> 
> Rgds
> 
> Ralph
> 
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