perfsonar development work

[Loukik Kudarimoti <>]

Guilherme Fernandes wrote:
> Loukik Kudarimoti wrote:
>
> > Hi,
> Hi
>
> > While testing out RRD MA (from perfsonar 1.0) and SQL MA (snapshot), 
> > I noticed that the response messages for a SetupDataRequest *without 
> > key* message does not provide a key back along with measurement data 
> > in the response. I remember that this wasn't the case some time ago.
> >
> > I support the idea of sending a key back for such requests. It allows 
> > us to say "Here is the matching metadata and data for your request 
> > and also, here is a key that you can use the next time you want data 
> > for the same metadata".
> >
> > Based on my experience, I believe including the key in the response 
> > requires a very minor change in the service engine code. All services 
> > implementing the key mechanism should similarly provide the key back 
> > for such requests.
> >
> > Any comments?
> >
> > Loukik.
>
> But we also have the situation where the data in the response belongs 
> to many keys (this is often the case when fetching OWAMP data from the 
> SQL MA, like getting all the data that belongs from a src to a dst).
Can you give some examples please?

Loukik.
> You could return all the keys that are related, but I think you can't 
> request data passing multiple keys (at least in the current 
> implementation, but I could be wrong). Maybe it could return the key 
> if its related with a single key and keep the current response if its 
> related to multiple keys?
>
> Guilherme Fernandes