[collectd] Combining graphs

[Hanno Schupp]

Thank you for that,

I have put some configuration into /etc/collectd/collection.conf on the
server where the data is collected and the graphs are drawn, however, the
graphs do not change at all, even after completely deleting what is there.

I now have the sneeking suspicion that this type business in collection.conf
may hvae to happen on the client (in other words my routers) or should this
actually work with the configuration on the server?

Please advise.


Attached: /etc/collectd/collection.conf

datadir: "/var/lib/collectd/rrd/"
libdir: "/usr/lib/collectd/"
<Type cpu>
   RRDOptions -u -100
 </Type>
<Type load>
   Module load
 </Type>
<Type ping>
  Module GenericStacked
  Stacking false
 </Type>
 <Type wireless>
   RRDOptions -l -100
 </Type>



On 22 October 2010 10:39, Max Henkel <henkel at gmx.at> wrote:

> Hello Hanno!
>
> First I should mention that collection3 is not supported [1][2].
> Nonetheless I will give you some hints. You can find all of the
> following information in the perl-scripts of collection3.
>
> On Thu, 21 Oct 2010 22:01:50 +1300, Hanno Schupp wrote:
> […]
> > It delivers three separate graphs. However, I wish to have one graph with
> > all three lines superimpose like one can see in the wiki:
> >
> > Q: How do I do that?
>
> You can change the "ping" type in the etc/collection.conf file to
> use the "GenericStacked" module. Furthermore you have to disable the
> "stacking" so that the different ping values are not summed up.
>
> E.g.
>  …
>  <Type ping>
>   Module GenericStacked
>   Stacking false
>   …
>  </Type>
>
> […]
> > Q: How can I move the scale to, say, -100dBm to 80dBm instead of the
> > current -90dBm to 80dBm – just like signal quality has its graph in the
> > idle and not at the bottom edge?
> […]
>
> Rrdtool graphs the data and you can give additional options to it
> with the "RRDOptions" switch. ( man rrdgraph )
> In your case the "-u" and "-l" options should do what you want.
> E.g.
>  …
>  <Type wireless>
>    RRDOptions -l -100
>    …
>  </Type
>
> Regards,
>
> Max
>
> [1] http://www.collectd.org/index.html -> Limitations
> [2] http://www.collectd.org/wiki/index.php/First_steps#Creating_graphs
> --
> < henkel at gmx dot at >
>
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