Hi Brad,

I like your idea.
As the ganglia installation is quite easy an upgrade of all instances 
should be possible.

Regards,
Ulf

Brad Nicholes schrieb:
>    I am thinking about adding an optional metric "Alias" that can be assigned 
> to each metric through the gmond.conf file.  The upside to this would be that 
> the web front-end would no longer have to display the cryptic metric name for 
> all of the graph titles and constant metrics.  If an alias for the metric 
> name was supplied, then the front-end could use the alias when it instructs 
> RRD to create the graphs.  
>    However, there is also a downside.  In order to do this, it will require 
> that the metric message that is sent between gmond's, change in order to 
> propagate the alias from each node up into gmetad.  By changing the metric 
> message, newer 3.1.x versions of gmond will no longer be able to talk to an 
> older 3.0.x gmond or earlier.  So the first question would be, does that 
> matter?  Is it OK to break compatibility between 3.0.x and 3.1.x versions of 
> Ganglia?  When users upgrade to 3.1.x, are they likely to do a complete 
> upgrade all at once or expect to only upgrade some machines but not all?  
> Another issue would be that by assigning an Alias, a metric on one machine 
> could possible be presented by a different name than the same metric on 
> another machine.  Hopefully, this issue would be minor due to the fact that 
> the metric name would be more descriptive of what the metric actually is, but 
> the names could be different.
>    My biggest motivation for this is to allow a user to give more descriptive 
> names to the metrics in the web front-end without the PHP code having to 
> figure it out.  It also would eliminate the problem of constant metric names 
> or gmetric labels that are too long and mess up the web interface.  Just 
> thought I would throw out the idea for feedback before I get too deep into 
> the implementation.
>
> Thoughts?
>
> Brad
>
>
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