On Mon, 08 Aug 2011 16:06:04 +0200, John Macleod jcdmacleod@me.com wrote:

Is it possible to aggregate collectd graph data?

We use Observium and the CollectD plugin to monitor several clusters.

We

would like to graph aggregate data from CollectD for a number of

services.

Does anyone have any experience with this?

You would need to build the graphs with rrdtool from the collectd rrd files.

It's not overly difficult, but can be a little confusing if you've never dealt with rrdtool or RPN before.

Have a look at the rrdtool website and poke around in html/includes/graphs/* in observium for examples

adam.