prototype TAP-1.1 service

[Mark Taylor]

Pat (again),

On Wed, 27 May 2015, Patrick Dowler wrote:

> I have updated the CADC TAP service with some TAP-1.1 goodies:
>
...
> 
> 4. The async jobs now support the UWS blocking query (WAIT) with a current
> maximum wait time of 60 (sec), at which point you just get the job in the
> current phase (phase when the wait started). It isn't a very fancy
> implementation: it just does some server side polling of the job phase with
> increasing delta (1, 2, 4, 8 sec then stays at 8) because we have 4 web
> servers and no distributed event notification system in place to wake up
> blockers on a different server from the one actually running the job. But, I
> think this is OK for what it does, which is relieve the client from doing
> polling with all the connection overhead.

Paul's original posting on this said:

On Tue, 19 May 2015, Paul Harrison wrote:

> I believe that there is only one outstanding issue in this document
> in section 2.2.1.1
> (http://volute.googlecode.com/svn/trunk/projects/grid/uws/doc/UWS.html#blocking)
> highlighted in yellow. It concerns how other standards might signal which
> version of UWS that they are using. My current feeling is to remove this
> text entirely and leave it up to the other standard documents to signal
> the mechanism that they want to use. I think that part of the cause for
> this versioning issue to come up was the lack of clarity of the namespace
> for the UWS schema - which is now addressed by the release of a schema
> with a new 1.1 namespace - therefore it is safe to remove this issue
> from the UWS specification. Any objections?

However it looks to me like the job documents at service/async/(job-id)
are still in the http://www.ivoa.net/xml/UWS/v1.0 namespace.
Is that true, or am I looking at the wrong thing?

As long as that's the case, I don't think there's any good way
for me as a client to find out I'm talking to a UWS 1.1 service,
so I'm not going to be able to implement client-side blocking
functionality.

Mark

--
Mark Taylor   Astronomical Programmer   Physics, Bristol University, UK
m.b.taylor at bris.ac.uk +44-117-9288776  http://www.star.bris.ac.uk/~mbt/