[Pgi-wg] OGF PGI - Job State Model and textual description (UML: zargo + xmi + png) for next telephone conference Wednesday 15 July 2009 at 16h

[Etienne URBAH]

Moreno, Aleksandr and all,


PGI Job State Model
-------------------
Taking into account the remarks, comments and suggestions of the 
telephone conference of last week Wednesday 08 July 2009, I have 
performed following improvements to my Job State Model :

-  Group 'Hold-*' substates inside second level 'Hold' substates,

-  Add a third level 'Suspended' substate inside each 'Hold' substate,

-  Clearly separate 'Finished', 'Failed' and 'Cancelled' states,

-  Add an 'Automatic Resubmission' transition to the 'Submitted' state 
only from the 'Failed' state


Concerning the possibility of 'transitions between substates' proposed 
by Aleksandr KONSTANTINOV in his mail dated 08 July 2009 :
Even if a given implementation uses direct transitions between substates 
belonging to different states,
-  It would NOT be easy to agree on any standard for such transitions,
-  It would NOT be a good idea to force all implementations to simply 
understand them,
-  It would NOT be easy to write clients able to understand them,
-  For the normal flow, I have already designed :
    - the 'Outgoing' final substates as standard exit doors,
    - the 'Incoming' substates as standard entrance doors and branching 
points.
So, I fully agree with Andrew GRIMSHAW, we should NOT expose transitions 
between substates belonging to different states.


I have updated accordingly and uploaded inside GridForge following 
documents :

-  'PGI Job State Model - Textual description' available at 
http://forge.gridforum.org/sf/go/doc15697?nav=1

-  'PGI Job State Model (available as ZARGO, XMI and PNG)' available 
under 5 formats at http://forge.gridforum.org/sf/go/doc15655?nav=1 :
    - ZARGO file created by ArgoUML
    - XMI file readable by any UML tool
    - PNG drawing of the Small Diagram
    - PNG drawing of the Big Diagram
    - PNG drawing of the Big Diagram with Comments

    The model itself contains the whole information, smaller diagrams 
are easier to view and to print, bigger diagrams show more details.

Please review this model carefully before this telephone conference, so 
that we can quickly point any remaining issue and reach a consensus :

I will attend this telephone conference, but I will probably NOT be able 
to attend the telephone conference on Wednesday 22 July 2009.

I am still ready for further improvements, and if necessary, I will be 
available for telephone conferences on Fridays at 16h.


Status update on Security
-------------------------
I propose that before this telephone conference, you carefully review my 
  'PGI Security Model' available at 
http://forge.gridforum.org/sf/go/doc15584?nav=1

That would permit us to quickly point any remaining issue and perhaps 
reach a consensus.


Best regards.

-----------------------------------------------------
Etienne URBAH         LAL, Univ Paris-Sud, IN2P3/CNRS
                       Bat 200   91898 ORSAY    France
Tel: +33 1 64 46 84 87      Skype: etienne.urbah
Mob: +33 6 22 30 53 27      mailto:urbah at lal.in2p3.fr
-----------------------------------------------------


Moreno Marzolla wrote:
> Dear all,
> 
> the next PGI teleconference will be held tomorrow july 15th
> at 16:00 CET (duration: 1 hour).
> 
> Call-in details as follow:
> via Skype call +9900827049931906 (free of charge) ordinary phone numbers
> (local rates) with the 9931906 conference number:
> 
> Austria 0820 401 15470
> Belgium 0703 57 134
> France 0826 109 071
> Germany +49 (0) 180 500 9527
> Switzerland 0848 560 397
> 
> The agenda is similar to the last call (in particular, tomorrow I would 
> like that we spend a few minutes on a status update of the security 
> discussion)
> 
> 1) State model
> 
> 2) Status update on security
> 
> 3) AOB
> 
> Feel free to propose additional topics for discussion.
> 
> Moreno.
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