perfsonar development work

[Roman Lapacz <>]

Jeff W. Boote wrote:
> Roman Lapacz wrote:
> > Nicolas Simar wrote:
> > > Hi,
> > >
> > > In the RRD MA configuration file, the person who build the metadata 
> > > configuration file  can chose the "Data storage unit".
> > >
> > > The visualisation tools querry the information from the MA.
> > >
> > > What happens if one RRD MA instance export bps, another one kBps?
> > > 1) Do the visualisation tool have to deal with it?
> > > 2) Do the MA have to normalise it?
> > > 3) Are there best practices we should suggest to ensure consistency 
> > > in the service offered globally?
> >
> >
> > I think we should have one terminology for units to avoid the 
> > situation when the same unit will be called differently in two 
> > instances of RRD MA (example bps and bit/s).
>
> I agree. See that attached message for suggestions on where we come up 
> with unit names from. (From the last time this topic came up.)
>
> > Transformation between units should be done by transformation service 
> > (TrS). No need to add this functionality to MA (it 's possible but 
> > may increase the time of responses from MA).
>
> As I mentioned in my other message. The other possibility is to have 
> the client do it.

I agree. I prefer not to collect conversion functionalities inside MA 
(of course there might be exceptions) because it may slow down the 
service. I prefer MA as simple as possible and thus as fast as possible 
(we all know that the performance is crucial).


Roman