Hi Dennis, MS were definitely in evidence at the meeting that Tony reported in his GridToday article. Whether the MS people there represented official company policy is less clear, but certainly those people have had some influence in the UK e-Science community. Other people are concerned that if MS do not explicitly support WSRF, this will make it harder to develop and/or deploy Grid services on MS systems. WSRF supporters say that this will have no effect, as the support that MS has for WS-Addressing is sufficient. It seems to me that this question could be settled by experiment. A WSRF supporter who is fluent in .Net could sit down with some of the sceptics while they attempt to create a WSRF service. Dave.
-----Original Message----- From: owner-ogsa-wg@ggf.org [mailto:owner-ogsa-wg@ggf.org] On Behalf Of Dennis Gannon Sent: 01 March 2005 12:54 To: Ian Foster Cc: Samuel Meder; ogsa-wg; Tony Hey Subject: Re: [ogsa-wg] RE: GRIDtoday Edition: Tony Hey: 'Challenging Times for GGF & Standards'
hi Ian, i agree that this consistency is critical. But how much WSRF or ws-trans/ws-enum must be visible to the application builder? Perhaps it is essential that one or the other must be exposed. i don't know. perhaps doing so just adds another layer abstraction layer as frank suggests. but it may also be that we have defined the wrong abstraction layers to start from. again, i don't know.
my other point is this: i don't see this as a debate with MS. i see a debate right in the core of GGF membership. from what i can see, MS is a no-show at this party.
dennis
On Mon, 28 Feb 2005, Ian Foster wrote:
Dennis:
I'm not sure that the "we don't need WSRF" is the heart of the debate. If it was, then I think things are fairly clear: WSRF is just some conventions for the messages that you send to do certain things (e.g., getResourceProperty to get state, Terminate to destroy something, or whatever the names are) in a WS context. If you don't have those conventions, then everyone ends up defining their own, so that e.g. a job management interface might have "getJobStatus" and "destroyJob", a file transfer interface might have "getTransferStatus" and "destroyTransfer". This lack of consistency just makes life difficult, without providing any benefits.
The debate with MS, as I understand it, seems to rather relate to the fact that they are promoting a *different* set of conventions for doing similar things, e.g., WS-Transfer instead of WS-ResourceProperties.
Ian.
hi Sam, i don't think MS has any orchestrated view on WSRF at all (but i may be wrong.) I think it is more the case that there are
grid standards (outside of microsoft) that feel that what exists in the ws-spec world is sufficient. hence if there is any onus, it is on those folks to show us that this is true. what tony is saying is that users, i.e. application builders, should not have to deal with
should see clearly defined OGSA services and they should have an easy to understand set of interaction patterns to use these services to build thier applications. the OGSA point of view is that to be
the definition of these behavior patterns requires a
At 10:23 PM 2/28/2005 -0500, Dennis Gannon wrote: people working on these details. The precise in framework like wsrf.
i actually feel that these things can all coexist. but
from the politics
of "what is simple", we seem to live in interesting times.
dennis
On Mon, 28 Feb 2005, Samuel Meder wrote:
On Mon, 2005-02-28 at 14:38 -0800, Frank Siebenlist wrote:
Could anyone summarize MS' WS-view, and how it differs from WSRF?
So far I have not seen any substantial difference between the two approaches and I definitely believe the onus is on MS to show why people should adopt their proprietary specifications vs. adopting something that is being developed in a open standards body, is getting very close to a 1.0 version and has multiple implementations behind it.
/Sam
Thanks, Frank.
Hiro Kishimoto wrote:
Hi all,
Absorbing article by Tony Hey.
http://news.tgc.com/nview.jsp?appid=360&print=1#342708 ---- Hiro Kishimoto
> GRIDtoday > NEWS AND INFORMATION FOR THE GLOBAL
GRID COMMUNITY
> --- February 28, 2005: Vol. 4, No. 8 --- >
> > > > >>SPECIAL FEATURES > > > > >>============================================================== > > > > >> > > > > >>[ ] M342708 ) WSRF? WS-*? Where is GGF's OGSA Headed? > > > > >> By Tony Hey, Contributing Editor > > > > >> > > > > >> Tony Hey, director of e-Science for the Engineering and Physical > > > > >>Science Research Council, continues to elaborate the need for open > > > > >>standards in the realm of Web services-based Grid computing. He > > > > >>discusses the great debate of WSRF vs. WS-*, and lays out what the > > > GGF > > > > >>must do with OGSA in order to give e-Science application developers > > > > >>something to rally around. > > > > >> > > > > >> > > > > > > > > > > > > > > > > > > > > > > -- > > > Sam Meder <meder@mcs.anl.gov> > > > The Globus Alliance - University of Chicago > > > 630-252-1752 > > > > > > > > > > > _______________________________________________________________ > Ian Foster www.mcs.anl.gov/~foster > Math & Computer Science Div. Dept of Computer Science > Argonne National Laboratory The University of Chicago > Argonne, IL 60439, U.S.A. Chicago, IL 60637, U.S.A. > Tel: 630 252 4619 Fax: 630 252 1997 > Globus Alliance, www.globus.org >