availability schema v0.2

[Guy Rixon]

Ani,

yes, a service that cannot work is formally unavailable. That was what I
meant.

Guy

On Fri, 19 Aug 2005, Ani Thakar wrote:

> On Fri, 19 Aug 2005, Guy Rixon wrote:
>
> > Hi,
> >
> > I am implementing the getAvailability interface as one of the prototypes
> > required before VO support interfaces can go to PR. I've posted v0.2 of the
> > availability schema at
> >
> > http://www.ivoa.net/internal/IVOA/IvoaGridAndWebServices/availability-v0.2.xsd
> >
> > This version has two main changes. First, I've included a vr:Contact element
> > to satisfy the requirement in the text of the spec. Second, I've include a
> > boolean element called "available" to show whether a running service is
> > currently available for work. This second element is needed to cover the case
> > where a service is up but some of its dependencies (DBs etc.) are down so it
> > can't do useful work.
>
> hi guy,
>
> i'm not sure why we need this distinction, i.e. if it cannot do useful
> work, is it not effectively unavailable?  OTOH, i think this parameter
> is a good idea anyway because the current spec (SI-3) does not include
> anything that directly tells you if the service is currently available
> or not, which seems like a major oversight (or am in missing
> something?).
>
> 	ani
>
> --
> Aniruddha R Thakar,  Research Scientist,  The Sloan Digital Sky Survey
> Ctr for Astrophys Sci, JHU, 3701 San Martin Dr Baltimore MD 21218-2695
> 410-516-4850 fax:410-516-5096  thakar at jhu.edu www.sdss.jhu.edu/~thakar
> -----------------------------------------------------------------------
> Good judgment comes from experience, and experience -- well, that comes
> from poor judgment.
>

Guy Rixon 				        gtr at ast.cam.ac.uk
Institute of Astronomy   	                Tel: +44-1223-337542
Madingley Road, Cambridge, UK, CB3 0HA		Fax: +44-1223-337523