[rrd-users] Graphing multiple databases into one graphs
linux at thehobsons.co.uk
Thu Mar 29 22:48:59 CEST 2012
>I'm trying to insert sereveral rrd databas einto one graph.
>I'm using a per script made by an ex-collegue and it works fine but I cannot
>display the stack of the values.
>I use this kind of creation:
> FNPATTERN memory_(.*)_(.*).rrd
> GROUPBY @RRDPARAM_2@
> TITLE Memory Utilization of @RRDPARAM_2@
> YAXIS Used
> -w 680
> -l 0
> COMMENT:"Graph period @DATERANGE@\n"
> DEF:p at RRDIDX@=@RRDFN@:used:AVERAGE
> LINE2:p at RRDIDX@#@COLOR@:"@RRDPARAM_1@ used \t"
> GPRINT:p at RRDIDX@:LAST:" \: %4.2lf%s (cur)"
> GPRINT:p at RRDIDX@:MAX:" \: %4.2lf%s (max)"
> GPRINT:p at RRDIDX@:MIN:" \: %4.2lf%s (min)"
> GPRINT:p at RRDIDX@:AVERAGE:" \: %4.2lf%s (avg)\n"
>I'd like to display also the stack but I cannot do it. I tried several way
>but I faild. How can I do that?
As I'm completely unfamiliar with that syntax, it's hard to follow.
It would be easier when asking RRD specific (as opposed to
language/API specific) questions to stick to the standard shell
As Jim says, all you need to do is this :
DEF:a=<some file>.rrd:a:AVERAGE \
DEF:b=<another file>.rrd:x:AVERAGE \
Ie, you just do one DEF for each item of data you want in the graph -
and it makes no difference whether they come from the same or
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