Below is some basic code that generates a stacked graph from an RRD.
However, I want to generate a graph based on an array of RRDs. The only
thing I have come up with is create a new RRD for every array and then
graph that. There has to be a way given a hash of arrays:
$combined{$NameOfGraph} = @rrdfiles
that I can generate the equivalent of the below. the length of @rrdfiles
changes depending on the $NameOfGraph.
#!/usr/bin/perl -w
use strict;
use RRDs;
use Data::Dumper;
my $rrdfile = "exampleGraph.rdd";
my $NameOfGraph = "Example";
RRDs::graph "$NameOfGraph",
"--title", "APstats",
"--start", "now-48h",
"--width=300",
"--height=75",
"--vertical-label=Active Users",
"DEF:a=$rrdfile:auth:MAX",
"DEF:g=$rrdfile:guest:MAX",
"VDEF:amax=a,LAST",
"VDEF:aavg=a,AVERAGE",
"VDEF:gmax=g,LAST",
"VDEF:gavg=g,AVERAGE",
"AREA:a#00C000:auth",
"GPRINT:amax:%6.2lf %Susers",
"AREA:g#00C0FF:guest:STACK",
"GPRINT:gmax:%6.2lf %Susers",
"--lazy",
;
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