Gildas Le Nadan wrote:
Hum, I'm afraid I don't get how it works/can't make it work on a simple example: I'm trying to change la-multi in hobbitgraph.cfg so the values will be added up instead of printed on top of the others.
Are the entries in hobbitgraph.cfg used as a template to build the rrdgrph query? If so, then how can I access the values from the previous RDN to add them to the one in the current RDN (@RRDFN@)?
I tried adding the values to a VDEF:add=add, at RRDIDX@,+ but without success.
Did you ever work out a solution for this?
I'm starting to investigate a way that I can take data from many rrd files, and graph the average of the data all those rrd files as a single line. For example, I'd like to average the %CPU usage (la1) for 10 different webservers, and display it as a single overall average %CPU for a web farm.
Tom