InterOpMay2004 Grid and Web Services



Participants

DickShaw
PaulHarrison
ChristopheArviset
WilliamOMullane
TamasBudavari
AndreSchaaff
AlbertoAccomazzi
AlasdairAllan
MarcoLeoni
RayPlante
KevinBenson
PeterLamb
YujiSHIRASAKI
MasahiroTanaka
MariaNieto
RiccardoSmareglia
Alessandra Volpato
RamonWilliamson
Reagan Moore
PierreDidelon
MatthewGraham
GuyRixon
PeterQuinn
David Morris

Timetable

Tuesday May 25, 2004

Time Work Pkg Content Leader
08:30 Introduction Clarify work packages GuyRixon
08:35 Standard interfaces Progress v0.1 proposal WilliamOMullane
09:20 Asynchronous activities Discuss recent proposal GuyRixon

Friday May 28, 2004

Time Work Pkg Content Leader
08:30 Further thoughts on Tuesday discussions   GuyRixon
09:00 SOAP interoperability Discuss use of WS-I profile AndreSchaaff
09:30 Access control Discuss recent proposal GuyRixon
10:15 AOB   GuyRixon


Materials and notes from the work group and plenary sessions

Asynchronicity

Materials

Resolutions

  • This proposal to be developed further.
  • Use of WS-RF is acceptable.
  • WS-BaseNotification should be optional.

Issues

  • Does WS-BaseNotification do reliable messaging? Does it need to?
  • Need some WS-RF prototypes.

Actions

  • Find out if WS-BaseNotification has reliable-messaging semantics (GuyRixon).


VObs Support Interfaces (originally called "Standard interfaces")

Materials

Resolutions

  • Renamed from "standard interfaces" to "VObs support interfaces".
  • All three port-types to be specified.
  • getRegistration (was getMetadata, now renamed) to be optional.
  • getAvailability (a.k.a. "heartbeat") to be mandatory.
  • harvestLog to be optional.
  • Progress to concrete design (WSDL, XSD, prototypes) ASAP.

Actions

Issues

  • May need to apply access control to harvestLog
  • Unclear if registries will actually use getRegistration.


Access control

Materials

Resolutions

  • A SSO system based on digital signature and WS-Security is basically suitable for the IVO.
  • Use of community services (run by real-world, astronomical communities) is a good way to manage users.
  • Split the current proposal into two IVOA documents: (1) wire protocol; (2) Public Key Infrastructure/community services.
  • Only community services for authentication should be tackled now. Community authorization is separate and might not be required.
  • We need to understand the technology better before deploying it.

Issues

  • Is WS-Security compatible with "Shibboleth"?
  • Is WS-Security compatible with grid services/portals?
  • Will service providers acccept our SSO arrangements?
  • Can we handle 100+ communities? Do we expect that many?
  • How do we prevent spoofing of community services (allows stealing of passwords)?
  • How do we delegate work from one service to another?

Actions

  • Check compatibility of WS-Security with other systems (GuyRixon)


SOAP interoperability

Materials

Resolutions

  • We adopt WS-I conformance as a goal, subject to support from our web-service toolkits.

Actions

  • Collect existing conformance-reports for web-service toolkits (AndreSchaaff).
  • Arrange testing programmes for implementations of IVOA services (AndreSchaaff)
  • Collect and publish conformance reports donated by IVOA members (AndreSchaaff).

Issues

  • Axis v1.1 may be too non-conformant to use; might need to adopt Axis v1.2 beta before its final release.

Distributed storage

Resolutions

  • This is now a work package for GWS-WG.
  • Aim for a common, standard facade to existing storage systems (MyDB, MySpace, SRB, etc.)

Actions



Topic attachments
I Attachment Action Size Date Who Comment
PowerPointppt STDIFboston.ppt manage 619.0 K 2004-05-24 - 16:14 WilliamOMullane Slides for Standard Interfaces
PDFpdf StandardInterfaces-0.1.pdf manage 57.3 K 2004-05-13 - 11:04 GuyRixon Standard interfaces proposed specification
Unknown file formatwsdl VObsService.wsdl manage 2.2 K 2004-05-13 - 11:02 GuyRixon WSDL for standard-interfaces specification
PDFpdf WordsAbout-WS-I-BP.pdf manage 681.5 K 2004-05-28 - 13:21 AndreSchaaff A few words about the WS-I Basic Profile
PowerPointppt async-activity-ivoa-may-2004.ppt manage 239.5 K 2004-05-27 - 22:56 GuyRixon Presentation on asynchronous activities
Unknown file formatxsd availability.xsd manage 1.1 K 2004-05-13 - 11:15 GuyRixon XSD for standard-interfaces specification
PowerPointppt sso-ivoa-interop-may-2004.ppt manage 307.0 K 2004-05-27 - 22:55 GuyRixon Presentation on single sign-on
Topic revision: r20 - 2005-05-11 - MarcoLeoni
 
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