WLCG Data Steering Group

Monday 27 Feb 2017, 16:00 → 18:00 Europe/Zurich

31/2-029 (CERN)

WLCG Data Steering Group

• Review of priorities
  • New additions
• Correspondences
  • Where are the shared interests?
• Making progress
  • Mechanisms available
  • Forthcoming meetings
    • preGDB slot (whenever we want)
    • Format for WLCG Workshop (mid-June)
    • CWP meeting (end of May?)
• Next steps and outputs of the group

 

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Reference

https://espace.cern.ch/WLCG-document-repository/Boards/MB/Minutes/2016/MB-Minutes-160920-v1.pdf
http://indico.cern.ch/event/467577/contributions/1976036/attachments/1339953/2017450/DataMBSummary.pdf

 

WLCG Data Steering Group Meeting - 27th Feb 2017

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Alastair Dewhurst (AD)
Christophe Haen (CH)
Michel Jouvin (MJ)
Martin Barisits (MB)
Andreas Peters (AP)
Oliver Keeble (OK)
Andrea Ceccanti (AC)
Brian Bockelman (BB)
Pepe Flix (JF)
Julia Andreeva (JA)
Dirk Duellmann (DD)

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* Review of priorities - further contributions

Castor (from Giuseppe)
  Understand position of SRM wrt tape within WLCG and how the interface to the next generation tape system, with EOS as a front-end, should be handled.
  Space reporting

DPM (OK)
  Space reporting
  SRM retirement
  caching

Storm (AC)
  Beyond X509 and connections to the Indigo and AARC projects
    v important when considering protocols such as http/dav
  Tape  - Discussion on SRM and tape. Are further developments needed? What role for Quality of Service?

EOS (AP)
  Question - Is this about tweaking our DM architecture or can we make major changes?

OK - we are supposed to do long term strategy, you can't do that if you're not willing to change the architecture

Discussion on object stores. OK - this is a good example of where everyone is working in the same space and finding the right common abstraction could save a lot of effort.

* Making progress

JF - shared google doc?

General agreement.  Decision - create a shared space, dump there what we have so far as a straw man. Allow everyone to contribute this way and share the draft more widely.

Discussion on forthcoming events and next steps.

Plan;

 * work on document
 * use this to inform a pre-GDB agenda, target May
 * use that to understand which topics should be taken wider, ie the WLCG workshop
 * get steering members to sign up to CWP (Community White Paper) so we keep in sync. May have to adapt above program if there's a meeting end May (NB - The CWP f2f has a high probability of happening in late May (somewhere in the 22nd through the 24th)).
 
Action - OK to set up shared space for the group.

JA - WLCG workshop - organising committee will meet 16th march, would like input soon. Very flexible on time available for data topics.

JA summarised storage resource reporting situation. Would like to make progress, even before a preGDB. The Information System task force is firming up proposals and they need to be checked with storage providers. They will soon have someone available to work 100% on this.

MJ - agree. we can get started without waiting for the list to be finished.

Action - OK and AP to have preparatory meeting with IS task force on resource reporting then circulate the result.

Next meeting - in 3 or 4 weeks? OK to circulate doodle.