[rrd-users] MAX values dependant on width of graph
richard at atomwide.com
Fri Mar 7 12:42:21 CET 2008
Below are the variables I am using when creating the archive, so in
answer to your question I believe I am storing the RRA for MAX.
and yes they are both using the same datasets.
> >I wonder if someone could explain this to me, either I am missing
> >something or I have some errors in my scripts.
> >It appears that when producing a graph the MAX values are
> not calculated
> >on the actual absolute maximum value in the sampled data for
> the given
> >time scale specified, but on the maximum value displayed on the graph
> >after the data has been aggregated to fit into the required
> pixel width.
> >As such generating the same graph twice but with different width
> >settings produces 2 different MAX values?
> Are you certain that both graphs are using the same dataset ? When
> changing the timespan of the graph, it's fairly easy to change which
> RRA is used to produce the graph which could alter the values
> Also, I assume you are storing an RRA for MAX and not taking "MAX of
> AVE" which is an easy mistake to make.
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