[rrd-users] trying to graph flow-tools data

zajaco0 at engr.uky.edu zajaco0 at engr.uky.edu
Tue Oct 26 20:06:09 MEST 2004


I am having trouble generating graphs from RRD files.  I'm not sure that my
files even contain any information as my graphs are always empty.  I have set up
a script that updates the rrd files every 15 minutes from some files generated
by flow-tools.  The flow files contain the correct data, but i want to verify
that my RRD files are storing the data correctly.  I have tried using the
following command to generate a graph from one of my rrd files.

#rrdtool graph test.png -a PNG \
DEF:val1=protocol_tcp.rrd:in_bytes:AVERAGE \
AREA:val1#0000FF:Value1 \
-s 20041026 -e now

the command generates a test.png file but the graph doesn't contain any information.

im using the following:
Redhat 7.3

refer to this thread as i think i might be having the same problem.




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