On Mon, Oct 06, 2008 at 04:04:01PM -0600, Brad Nicholes wrote: > > > > Does this not also mean I need to know at gmond start-up time which > > hosts the module will be spoofing for and rewrite > > /etc/ganglia/conf.d/<module>.pyconf to reflect the list of nodes > > that will need to be spoofed? > > > > No. Sorry, the colon separated name/id actually has more significance > than I stated previously. The metric_name:host_name is actually a > derivative of the same style used by gmetric in the --spoof=STRING > parameter. Part of the patch to gmond.c was to add a function called > get_metric_names() which for a spoofed metric, specifically looks for > a colon separated metric name, pulls the first name from the string > and uses that to match against the name that is referenced in the > gmond.conf file. So for example if your metric name is > "my_foo_metric" then the name that is referenced in gmond.conf should > also be "my_foo_metric". But the name that your module actually > assigns as the metric name in the metric definition structure should > be "my_foo_metric:some_host_or_other_id". This needs to be documented > in the README.in file that explains how to write a python metric > module. I also plan on adding this same documentation to the wiki > once the patch has been backported.
ah, I missed that bit in get_metric_names(). Thanks for clarifying. I think I can manage to write a spoofed DSO now without problem. so the part after the colon could be any key or identifier you want, as long as the call_back function can extract which SPOOF_HOST should be updated. mh ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Ganglia-general mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/ganglia-general
