CF Requirements: 6) Transactions

GENI Control Framework WG Members, and Dave Irwin of UMass Amherst,


A first DRAFT (v01.3) of the GENI Control Framework Requirements
document has been completed, and can be found at
http://groups.geni.net/geni/wiki/GeniControlFrameworkRequirements 

A discussion of the document on February 25, 2009 resulted in the
identification of 10 discussion items, which can be found at
http://groups.geni.net/geni/attachment/wiki/GeniControlFrameworkRequir
ements/030609_CFRequireReviewTopics.pdf



This email begins a discussion thread on:  5)  Transactions

I would like to invite Dave Irwin of UMass Amherst to begin the
discussion, and then others are invited to join in.  



6a)  On the call, Harry indicated that the basic transaction that the
CF needs to support is that researchers can obtain resources, and then
control them to execute experiments.  

Dave indicated that ORCA is based on two tenets:  resources are
shared, but not forever.

The group then had a wide-ranging discussion on the nature of
transactions, and felt that the CF needs to support a range of
transactions.


6b)  The current DRAFT of the CF Requirements document covers a
variety of situations in Section 5.5.4.

But, this section is a somewhat confusing listing of options, without
a clear structure.

 
6c)  Perhaps we should instead consider this approach:

        The CF allows the authorization and assignment of resources
from aggregates to researchers...

        through negotiation of a "lease" (or "ticket", but currently
ticket implies a certificate) that includes:

                characteristics and/or identity of resource

                time (can be now, specific, or indefinite) and
duration (must be limited)

                level of assurance

        with ability for aggregate to change negotiated "lease"

        with ability for researcher to change negotiated "lease"




We look forward to a continuing, lively discussion, working towards a
'rough consensus".

Harry E. Mussman
Control Framework Systems Engineer

GENI Project Office
BBN Technologies
10 Moulton Street
Cambridge, MA 02138
(617) 873-4282 - Office
(781) 266-8479 - Mobile
(617) 873-4888 - Fax
hmussman@...
www.bbn.com



_______________________________________________
control-wg mailing list
control-wg@...
http://lists.geni.net/mailman/listinfo/control-wg