Perhaps something got screwed up when you called gmetric, and the XML syntax is now broken for those nodes.

Did you call gmetric with the -d option? If not, the custom metric XML will stay around forever as -d specifies a timeout for metric's.

Please try calling gmetric again for those custom metrics on the nodes affected, but this time add '-d 1'. With DMAX set to 1, the metric will timeout after 1 second and should override any old custom metric garbage and disappear. If it broke the XML tree it should fix it.

- Ramon.

Christopher Yip wrote:

Can anyone suggest what might have happened in the following?

I was trying to pull together a custom metric for ganglia and now, the machines that it was set up on, their graphical data does not appear on the Ganglia web pages even though the numerical information is correct.

You can see the problem here:

http://128.100.71.70:81/ganglia/? c=Yip_Lab_Systems&m=&r=hour&s=descending&hc=4

I restarted the head node that tracks everything, reset the RRDs, etc and nothing seems to work. If I restart gmond on those affected machines, you sometimes get a spike on the graph and then nothing - again, the numerical information is correct, just no trend data...

I've since removed the custom metric but something else is messed up and I can't figure out where the problem is - i.e. is it on the clients that are providing the data, or the one that is collecting it..?.. I did look on the list but the situations that talk about no images refer to incorrect permissions, or the whole cluster is off - in this case, it's only selected machines that seemed to be affected...

Thanks

Chris

Christopher M. Yip, Ph.D., P.Eng.
Associate Professor - Canada Research Chair in Molecular Imaging
Department of Chemical Engineering and Applied Chemistry
Department of Biochemistry
Institute of Biomaterials and Biomedical Engineering
University of Toronto
407 Rosebrugh Building
4 Taddle Creek Rd
Toronto, Ontario, CANADA M5S 3G9
(416) 978-7853
(416) 978-4317 (fax)
[EMAIL PROTECTED]
http://bigten.ibme.utoronto.ca



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