Performance values, what to use? (Was: Docume ntation Error)

[Voon, Ton]

What examples of perfdata that return string values do you envisage? The
only one that comes to mind is printer status (offline, waiting for paper,
loading, printing, ready), but then these are statuses, not perfdata.

My view on perfdata is that it has to be a measureable value with ranges,
hence graphable. This wouldn't be possible with strings.

-----Original Message-----
From: Karl DeBisschop [mailto:karl at debisschop.net] 
Sent: 08 September 2004 01:22
To: nagios-devel at lists.sourceforge.net
Subject: Re: [Nagios-devel] Performance values, what to use? (Was:
Documentation Error)


Ben Clewett wrote:

> All systems have to use the same format, as specified in the 
> documentation:
> 
> http://nagiosplug.sourceforge.net/developer-guidelines.html#AEN185
>
> Unfortunately there are holes in this documentation.  I have also seen
> requests to amend this documentation to add more features, and patch up 
> the holes.

I have somehow missed these discussions.

> Which have been, for what ever reason, ignored by these news groups.
> 
> I would personally like to see NULL, -INF and +INF supported as 
> possible
> values.  Which PP and RRD can use in their own ways. :)

I do not remember seeing any concrete proposals to that effect. But I 
would generally support the addition of token to represent these values.

Bear in mind that perfdata is not always numeric - it may be a string 
value. So what ever means are used to encode a token for the above cases 
must be distinquishable from a text value of (say) NULL that a moniroed 
application might return.


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