[rrd-users] [Ganglia-general] Combining metrics from several RRD files

[Martin Knoblauch]

Hi Arnau,

 not completely :-) I actually want to extract the data from the RRD files
and combine them into one, adding up the vaules. Good thing, I found out
about "rrdtool xport". I does what I want on the extracting. Now I just
need to do the summing up.

Cheers
Martin


On Fri, Jan 31, 2014 at 11:21 AM, Arnau Bria <listsarnau at gmail.com> wrote:

> On Fri, 31 Jan 2014 10:37:19 +0100
> Martin Knoblauch wrote:
>
> > Hi friends,
> Hi,
>
> >  hope somebody already had this problem and solved it. So I have a
> > cluster were we monitor the status (size, used, free) for several
> > filesystems using Ganglia. Looks all great in the browser, but now
> > the customer wants to have those data sets combined into one. In
> > order to not loose the data we have, I want to combine those into one
> > RRD. All the "source" RRDs have identical structure (RRAs) and
> > timestamps.
>
> > Any solution? Ideas?
>
> If I've understood you property:
>
> 1.-) use the "Aggregate Graphs" from ganglia's web.
> 2.-) create a custom grpah and add it to one host :
> quick google search:
>
> http://sourceforge.net/mailarchive/forum.php?thread_name=503E2A47.6020705%40gmail.com&forum_name=ganglia-general
>
> 3.-) as they are RRDs you can mix them using your own script (bash,
> perl, python....)
>
> HTH,
>
> > Cheers
> > Martin
> Arnau
>
>
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-- 
------------------------------------------------------
Martin Knoblauch
email: k n o b i AT knobisoft DOT de
www: http://www.knobisoft.de
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