[hobbit] Graph definitions

[Phil Wild]

Hi Vernon,

You need to write your own backend data collector and have hobbit pass
the data to it through a change in hobbitlaunch. You parse the data
yourself at the server side and then build a single rrd file for every
entry. You then use the FNPATTERN as you have already specified...

>From memory, I think this is lightly covered in the man pages.

Cheers

Phil

2008/10/27 Everett, Vernon <Vernon.Everett at woodside.com.au>:
> Hi all
>
> Is there any way to define a graph definition for values that may or may not
> be available.
>
> Let's work with CPU temperature, just as an example.
>
> In hobbitserver.cfg, I can define this
> NCV_systemp="*:GAUGE"
> (And the other ncv definitions)
> It then generates rrd files for all the servers.
>
> However, some systems have 1 cpu, some have 2, and some 4.
> So the rrd files only have entries for the number of CPUs.
>
> In the hobbitgraph.cfg we can define the graph, with 4 cpu temperatures, but
> if the rrd file doesn't contain 4 fields (i.e. system has only 2 CPUs), it
> doesn't generate a graph.
> It is also not possible to have a separate graph definition for 1, 2 and 4
> CPU systems.
>
> The other way round it, is to have each CPU in a separate file, and define
> FNPATTERN= with a wildcard.
> But how do we get the ncv module to put each field in a sepreate rrd file?
>
> Regards
>      Vernon
>
>
>
>
>
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