- pgi-wg - lists.ogf.org

OGF32 PGI Session Requested
by Morris Riedel 29 Jun '11

29 Jun '11

All, we have requested an OGF32 session to discuss our progress on ongoing activities such as our contributions to JSDL, BES, etc. Once the session is accepted, we can have more detailed session plans. It would be nice if those of you who will attend OGF32 can shortly inform me. Thanks! Your co-chair, Morris ------------------------------------------------------------ Morris Riedel Deputy Division Leader Federated Systems and Data (FSD) Jülich Supercomputing Centre (JSC) Info: http://www.fz-juelich.de/SharedDocs/Personen/IAS/JSC/EN/staff/riedel_m.html

1 0

Re: [Pgi-wg] OGF PGI at OGF32 Salt Lake City
by Etienne URBAH 28 Jun '11

28 Jun '11

Morris and Johannes, For OGF32 at Salt Lake City : - I will arrive at Marriott hotel on Friday 15 July 2011 at about 15h, and quit Marriott hotel on Monday 18 July 2011 at about 13h. - I will be pleased to participate to the PGI session, and to present an update about EDGI interop status at the GIN session. - As a SIENA REB member, I will also participate to the 'Science Agency Uses of Clouds and Grids' workshop on Monday 18 July 2011 morning. 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@lal.in2p3.fr ----------------------------------------------------- On Mon, 27/06/2011 15:29, Morris Riedel wrote: > Hi, > > yes I'm about to request one PGI session Etienne that will surely be accepted I guess. > > Furthermore, also a GIN session where I would like to invite you to enlight us in an update about EDGI interop status. > > Would you do this as well? > > I'm looking forward to meet you at OGF - I will keep you and the PGI list informed. > > Thanks, > Morris > >> -- -----Ursprüngliche Nachricht----- >> -- Von: Etienne URBAH [mailto:urbah@lal.in2p3.fr] >> -- Gesendet: Montag, 27. Juni 2011 15:10 >> -- An: Riedel, Morris; Johannes WATZL >> -- Cc: lodygens(a)lal.in2p3.fr; pgi-wg(a)ogf.org; edgi-na2(a)mail.edgi-project.eu >> -- Betreff: OGF PGI at OGF32 Salt Lake City - URGENT >> -- >> -- Morris and Johannes, >> -- >> -- For OGF32 at Salt Lake City, I am referring to the schedule available at >> -- http://www.ogf.org/gf/event_schedule/index.php?event_id=19 >> -- >> -- - A PGI session at OGF32 was foreseen, but the above mentioned schedule >> -- does NOT show it. >> -- Will there really be a PGI session at OGF32 ? >> -- >> -- - The OGF32 event is foreseen from Friday 15 to Monday 18 July 2011, >> -- but the above mentioned schedule shows sessions only up to Sunday 17 >> -- July 2011. >> -- Will there be OGF sessions on Monday 18 July 2011 ? >> -- >> -- Thank you in advance for a quick answer. >> -- >> -- 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@lal.in2p3.fr >> -- -----------------------------------------------------

2 1

OGF PGI at OGF32 Salt Lake City - URGENT
by Etienne URBAH 27 Jun '11

27 Jun '11

Morris and Johannes, For OGF32 at Salt Lake City, I am referring to the schedule available at http://www.ogf.org/gf/event_schedule/index.php?event_id=19 - A PGI session at OGF32 was foreseen, but the above mentioned schedule does NOT show it. Will there really be a PGI session at OGF32 ? - The OGF32 event is foreseen from Friday 15 to Monday 18 July 2011, but the above mentioned schedule shows sessions only up to Sunday 17 July 2011. Will there be OGF sessions on Monday 18 July 2011 ? Thank you in advance for a quick answer. 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@lal.in2p3.fr -----------------------------------------------------

2 1

Re: [Pgi-wg] SIENA: Link to security use cases
by Etienne URBAH 24 Jun '11

24 Jun '11

Nicholas, Concerning security use cases for the 'European Roadmap on Grid and Cloud Standards for e-Science and beyond' : The link I provided is the EDGI Use Case 'Enforce Security of a Production Service Grid' at http://forge.gridforum.org/sf/go/doc16010 This security use case has been incorporated (alas without the diagram) as chapter 5 of the OGF PGI 'Use Case Collection' officially published by OGF with id GFD.180 at http://www.ogf.org/documents/GFD.180.pdf Besides, I consider that the main sources of information about security in DCIs are : - Symposium on Authentication Technologies (including a Roundtable on Cloud and Grid Security Standards) held at Texas Tech University on 4-7 October 2010 http://indico.rnp.br/conferenceDisplay.py?confId=85 Many thanks to Alan SILL who provided this information to the SIENA REB in his mail dated 05 October 2010. - EGI SPG (Security Policy Group) https://wiki.egi.eu/wiki/SPG - GLUE Specification v. 2.0 http://www.ogf.org/documents/GFD.147.pdf In particular its figure 1 at page 7 clearly shows the separation between the concepts of 'UserDomain' and 'AdminDomain' : 'Access Policies' permit users (members of different 'UserDomains') to make usage of 'Services' managed by separate 'AdminDomains'. - EMI Security Architecture https://twiki.cern.ch/twiki/pub/EMI/EmiJra1T4Security/SecArch_v0.1.pdf I am available for further information. 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@lal.in2p3.fr ----------------------------------------------------- On Fri, 24/06/2011 12:37, Nicholas Ferguson wrote: > Dear Etienne, > > Many thanks for your contributions to the REB conference call on > Wednesday. During the call you made reference to security use cases but > I was unable to copy down the link you sent. Could you send me the link > please so that I can add it to the meeting minutes. > > Many thanks > > Nick

1 0

OGF PGI : EMI Execution Service Specification
by Etienne URBAH 24 May '11

24 May '11

Johannes, Morris, and all, Concerning the 'EMI Execution Service Specification' version 1.0 dated 20 December 2010 available at http://forge.gridforum.org/sf/go/doc16254?nav=1 here are my first remarks : General structure ----------------- Exactly like the the 'PGI Execution Service Specification' (doc15839), this document is built upside down, beginning with SOAP specific port-types and operations. Best practices of Software Engineering are to : - begin with use cases and requirements (or with documents or web pages detailing these use cases and requirements), - continue with the description of the managed and used entities, the security context, the relationships between the entities, the state model, the sequence of interactions, ... - only then describe the abstract (NOT SOAP-specific) dialog protocol with exchanged records, requests, responses, subscriptions, notifications, ... - describe SOAP specific port-types and operations in a separate RENDERING document referencing the SPECIFICATION document. So, at least, the SPECIFICATION document must have following structure : 1) Introduction 2) Use Cases and Requirements In particular for : - long term traceability, - Resource matching, - Data staging. 3) Managed and Used entities 3.1) Reference = GLUE 2.0 3.2) Entities = User, Policy, Activity, Endpoint, Data file, JSDL document 3.3) Security context = IGTF + VOMS + Delegation, X509 or SAML 3.4) UML Collaboration diagram(s) with comments 3.5) UML State Diagram(s) with comments 3.6) UML Sequence Diagrams with comments 4) Abstract dialog protocol 4.1) Exchanged records (representing entity attributes) 4.2) Operations (requests, responses, subscriptions, notifications) SOAP specific port-types and operations must be described in a separate RENDERING document referencing the SPECIFICATION document. 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@lal.in2p3.fr -----------------------------------------------------

3 2

No PGI TelCon Today
by Morris Riedel 19 May '11

19 May '11

Hi folks, since some members have a clashing telcon today we need to postpone the meeting again. I will also setup a doodle at beginning of next week so that we perhaps find a more appropriate time slot for everybody. Take care, Morris ------------------------------------------------------------ Morris Riedel Deputy Division Leader Distributed Systems Division Jülich Supercomputing Centre (JSC) Info: http://www.fz-juelich.de/jsc/JSCPeople/riedel

1 0

No PGI Telcon today
by Morris Riedel 12 May '11

12 May '11

All, as I got feedback that there is the NorduGrid Conference going on today with PGI members. I'm personally also on another event today. We therefore postpone the PGI long-telcon today to the next PGI telcon. Take care, Morris ------------------------------------------------------------ Morris Riedel Deputy Division Leader Distributed Systems Division Jülich Supercomputing Centre (JSC) Info: http://www.fz-juelich.de/jsc/JSCPeople/riedel

1 0

EMI Execution Service Specification
by Mark Morgan 05 May '11

05 May '11

As promised, please find included my comments from a brief read-through of the EMI Service Specification document. I'm afraid I don't have too much time to do anything particularly cogent and so I'm just going to type in thoughts as they occur to me while I read the document. Section 1.2: I fear a one-off solution for delegation when, as a Grid primitive, it would be so much more useful to have a technique for delegation that crossed service functionality boundaries. Why do both the ActivityManager and ActivityInfo port-types have GetActivityStatus/GetActivityInfo operations? What is the difference between them? Page 6/45: I like the definitions of what happens regarding data staging for various types and times of failures -- this was definitely missing in the original BES and caused some pain for Genesis II. Section 1.4: You have a typo in the first paragraph '"server data pull" and "server data pull"' should be pull and push. Section 1.4: Why limit the spec. to two types of delegation tokens rather than make it extensible? Page 8/45: I don't know yet what your "activity description document" is, but if it's like JSDL, a vector of them gets big quick (we had a lot of trouble with this in Genesis II and is the reason why we eventually implemented the ParameterSweep extensions). Page 8/45: Ditto for the response vector. My guess is that you are not returning EPRs which will help a bit (though I don't agree with the practice), but I would suggest that you consider the WS-Iterator 1.0 specification or an equivalent. Ongoing: I continue to see "vectors" of things given or returned -- Again, I strongly encourage you consider some type of iteration context like WS-Iterator. Section 4.5: Personally I find the operation name "NotifyService" misleading Page 26/45: A rough, high level glance at the Activity Description Document structure leads me to believe that it is JSDL with a different name (and some extensions). Why go to all the effort to re-write JSDL when you could simply extend it? If you are going to do that, at the very least you need to motivate the decision. To me, it seems unnecessary. I understand that you want to use GLUE2, but couldn't that have been done without re-doing JSDL from scratch? -Mark

2 1

2011-04-28 PGI TelCon Minutes Online
by Morris Riedel 30 Apr '11

30 Apr '11

All, the minutes of our last telcon have been uploaded to GridForge [1]. Your co-chair, Morris [1] Link http://forge.gridforum.org/sf/discussion/do/listPosts/projects.pgi-wg/discu… ------------------------------------------------------------ Morris Riedel Deputy Division Leader Distributed Systems Division Jülich Supercomputing Centre (JSC) Info: http://www.fz-juelich.de/jsc/JSCPeople/riedel

1 0

Reminder & Agenda: PGI Telcon 2011-04-28; 3:30 pm CET
by Morris Riedel 28 Apr '11

28 Apr '11

Dear PGI team, just a gentle reminder about our usual telcon today. (1) Telcon-System and Screen-Sharing http://webconf.vc.dfn.de/ogf-pgi-wg/ No login is required. Just enter as 'guest' with your real world name. (2) Proposed agenda: (a) Job description elements progress and JSDL relationships (b) AOB Please feel free to add any other topic on the agenda that I may have missed. Your co-chair, Morris ------------------------------------------------------------ Morris Riedel Deputy Division Leader Distributed Systems Division Jülich Supercomputing Centre (JSC) Info: http://www.fz-juelich.de/jsc/JSCPeople/riedel

1 0