On Thu, Dec 29, 2005 at 03:46:37PM -0500, Michael Frey wrote:
After deleting the lines as suggested, and adding the <89>PNG, the image in the viewer is still a black screen.
If I delete the <89>PNG, the file size is zero bytes.
OK, that *is* very small.
What does the RRD files look like ? Those in the ~hobbit/data/rrd/HOSTNAME/ directory - they should be at least some 18-19 KB in size or larger.
If you run "rrdtool dump ~hobbit/data/rrd/HOSTNAME/tcp.conn.rrd", the beginning of the output should look like this:
-------- start rrdtool dump output -------- <!-- Round Robin Database Dump --> <rrd> <version> 0003 </version> <step> 300 </step> <!-- Seconds --> <lastupdate> 1135891575 </lastupdate> <!-- 2005-12-29 22:26:15 CET -->
<ds>
<name> sec </name>
<type> GAUGE </type>
<minimal_heartbeat> 600 </minimal_heartbeat>
<min> 0.0000000000e+00 </min>
<max> NaN </max>
<!-- PDP Status -->
<last_ds> UNKN </last_ds>
<value> 2.2500000000e-03 </value>
<unknown_sec> 0 </unknown_sec>
</ds><!-- Round Robin Archives --> <rra> -------- end of rrdtool dump output --------
You can try generating the graph image for one of the TCP "conn" graphs by running
rrdtool graph x.png
--title "localhost TCP Connection Times Last 48 Hours"
-w576 -h120 -v Seconds -a PNG -s "e-48h"
"DEF:p0=/home/hobbit/data/rrd/localhost/tcp.conn.rrd:sec:AVERAGE"
"LINE2:p0#0000FF:conn"
(replace the "/home/hobbit..." filename with the filename of your tcp.conn.rrd file).
If you run this, what happens ? The output should be "673x199" (which is the size of the generated PNG image), and the PNG image is in the x.png file.
Henrik