[rrd-users] Re: Looking for a way to combine the data from several RRD files
wernli at in2p3.fr
Wed Mar 8 10:49:21 MET 2006
On Tue, Mar 07, 2006 at 01:10:24PM -0800, Jared Gillis wrote:
> I'm in need of a tool, or way that I can take several RRD files and
> create a single one that has the sum of the values in the source RRDs.
You will need to:
- dump to multiple XMLs
- create a new single XML with the sum
- rebuild a RRD from that XML
This is a very CPU/memory consuming process if you use available tools like
xmlstarlet. So I suggest you be using one of perl's XML modules.
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