Hi,
I am having a little trouble with rrdtool 1.0.28. I am trying to graph the
memory usage in some of our routers, and having successfully setup traffic
monitoring, thought this would not be a problem.
I setup the RRD as follows:
/usr/local/rrdtool/bin/rrdtool create ../rrd/temperature.rrd --step 300 DS:inlet
:GAUGE:600:U:U DS:outlet:GAUGE:600:U:U RRA:AVERAGE:0.5:1:1200 RRA:MIN:0.5:12:240
0 RRA:MAX:0.5:12:2400 RRA:AVERAGE:0.5:12:2400
And can verify that data is going into this RRD (via a perl script):
/usr/local/rrdtool/bin/rrdtool fetch ../rrd/temperature.rrd AVERAGE -s -3000
inlet outlet
982242300: 1.8000000000e+01 2.5000000000e+01
982242600: 1.8000000000e+01 2.5000000000e+01
982242900: 1.8000000000e+01 2.5000000000e+01
982243200: 1.8000000000e+01 2.4006666667e+01
982243500: 1.8000000000e+01 2.4993333333e+01
982243800: 1.8000000000e+01 2.5000000000e+01
982244100: 1.8000000000e+01 2.5000000000e+01
982244400: 1.8000000000e+01 2.5000000000e+01
982244700: 1.8000000000e+01 2.5000000000e+01
982245000: 1.8000000000e+01 2.5000000000e+01
982245300: 1.8000000000e+01 2.5000000000e+01
982245600: NaN NaN
However, when I try to generate a graph of these data:
/usr/local/rrdtool/bin/rrdtool graph ../temP-day.gif -t "Temperature"
DEF:inlet=../rrd/temperature.rrd:inlet:AVERAGE
DEF:exhaust=../rrd/temperature.rrd:outlet:AVERAGE AREA:inlet:#00FF00:"Inlet"
LINE1:exhaust:#0000FF:"Exhaust"
All that it generates is a blank graph. The axes are there with the correct
values (in this case, bottom=10, top=25). However, there are no lines or areas,
nor a legend.
Any help would be most gratefully received,
Cheers,
Ollie
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