Thanks,
That's what I have been looking for!
For the record, in perl:
my @graph = ();
push @graph, (
"--start" ,"$start",
"--end","$end",
"DEF=hits:hits.rrd:ds1234:AVERAGE"
"DEF=cpu:cpu.rrd:ds1234:AVERAGE"
"CDEF=cpu_hit:cpu,hit,/"
"XPORT=cpu_hit:CPU per hit"
);
my @out = RRDs::xport(@graph);
my $out = {
start => $out[0],
end => $out[1],
step => $out[2],
ngraphs => $out[3],
legend => $out[4],
data => $out[5],
};
print "Content-type: text/plain \n\n";
print to_json( $out,{pretty=>1});
Works !
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