[ogsa-wg] Perhaps useful input to BES discussion

[Hiro Kishimoto]

Hi Ian,

Thank you for your excellent and thoughtful document!

Yes, we have had a very related discussion at the meeting yesterday.
We've discussed that BES defines subset of your 8 operation (1, 2, 7,
and 8). Please remember BES is for Container not for Job Manager.

The climate of the meeting is "container (factory) interface only, no 
job interface." And the reason is operation 2 and 7 are already specified
in WSRF.

However, I still wondering the following two issues;

(1) Even though interface is already defined in the WSRF, don't we need
to define domain-specific semantics and behavior (e.g. job destroy means
soft kill).

(2) Given that Job Manager defines Job interface explained in Ian's
document, combination of Job Manager and Container introduces
unexpected complexity in EMS architecture? (Job itself has its own
interface in the context of Job Manager but has no interface in the
context of container).

Your thoughts?
----
Hiro Kishimoto

-----Original Message-----
From: owner-ogsa-wg at ggf.org [mailto:owner-ogsa-wg at ggf.org] On Behalf Of Ian
Foster
Sent: Sunday, May 22, 2005 7:37 AM
To: ogsa-wg; OGSA-BES-bof at ggf.org
Subject: [ogsa-wg] Perhaps useful input to BES discussion

Dear All:

I am sending this draft document in case it is relevant to the OGSA-WG and/or
BES discussions.

In this document, I use a simple example (a skeleton execution service) to
compare and contrast four approaches to representing state, namely WSRF,
WS-Transfer, REST, and "state id." 

I haven't sent this earlier because I'd hoped to integrate numerous comments
that I've received from Savas and others. I hope to do so in the next week or
two, but perhaps this draft is still of interest.

Regards -- Ian.


_______________________________________________________________
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