[jsdl-wg] Questions and potential changes to JSDL, as seen from HPC Profile point-of-view

[Donal K. Fellows]

Karl Czajkowski wrote:
> One thing Donal mentioned which I would like to emphasize:
> 
> The discovery ought to be "what types of job are acceptable" and not
> what resources are there.  Or rather, the latter is part of some
> administrative interface which is misleading for job-submitting users
> and middleware.
> 
> This may sound pedantic, but it will be crucial for interop. The
> discovery has to capture realistic operating policy, and not just give
> enticing catalogues of resources which can never be combined in a
> single request!

I'm in strong agreement with Karl here (yes, it does happen from time to
time! ;-)) I'd go further and state that a resource that I cannot access
should not exist at all. Well, at least from my perspective.

A side effect of this is that resource discovery and selection *must* be
aware of the identity of the user for whom a resource is being chosen
(and that in turn means that the EPS spec will have to make non-trivial
statements about security. Yuck.)

Donal.