[rrd-users] RRD graph empty

Reto Baumann rb at open.ch
Mon Nov 12 07:55:41 MET 2001

Unfortunately I'm having some trouble with RRD... Averything seems to work fine (for most RRD databases), but it looks like one RRD database is causing me some serious headaches.

I created an RRD database for storing CPU load data.
rrdtool create /var/rrd/cpu.rrd --step 60 DS:user:COUNTER:600:0:U DS:nice:GAUGE:600:0:U DS:system:GAUG
E:600:0:U DS:idle:GAUGE:600:0:U RRA:AVERAGE:0.5:2:2400 RRA:MAX:0.5:2:2400

After the succesful creation, data will be entered every minute. It looks like the data is present in the RRD database (at least the data is there when checking with an rrdtool dump command).

Unfortunately (and this is my problem), does the creation of a graph not work. The graph is correctly scaled, but there is no line present in the graph.

rrdtool graph -s -6000 /www/honeybread/rrd/cpu.gif DEF:userLoad=/var/rrd/cpu.rrd:idle:AVERAGE LINE3:userLoad:#ff0000:"User" --alt-autoscale-max -t "CPU Usage"

Probably I'm making a stupid mistake here which can be easily solved... Thanks for any help


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