WLCG Data Steering Group

Tuesday 30 May 2017, 16:00 → 18:00 Europe/Zurich

31/S-027 (CERN)

WLCG Data Steering Group

• Resource Reporting proposal
  • https://twiki.cern.ch/twiki/bin/view/LCG/AccountingTaskForce#Storage_Space_Accounting
• WLCG Workshop Data Session
  • https://indico.cern.ch/event/609911/sessions/238310/#20170620
  • CWP slot?
• Status of recommendations
  • https://drive.google.com/open?id=1fz0i9W89bRTDh2DW_v1muOU0dHN8ax745Qm7U-YARJY
• Globus announcement
  • https://www.globus.org/blog/support-open-source-globus-toolkit-ends-january-2018

 

# WLCG Data Steering, 30th May

Martin Barisits
Michel Jouvin
Julia Andreeva
Brian Bockelman
Andrea Ceccanti
Alastair Dewhurst
Giuseppe Lo Presti
Latchezar Betev
Oliver Keeble

* Resource Reporting proposal

DPM, EOS and StoRM at least are OK with R1 and R2 in the document.
Oliver to get confirmation from dCache and XrootD.

More discussion needed on R3 and R4 to determine priority with experiments.

Discussion on StoRM - info will be available through xrootd, Dav and a summary file. Fine for Alice.

BB - Are these requirements on the software or on a service?
Outcome - add an "R0" to the doc which explains what is needed for any service  WLCG may use (ie used/free, no interfaces specified). Then be clearer that R1-4 are an attempt to capitalise on our influence over the WLCG providers, allowing us to go further.

* WLCG Workshop Data Session

No objections to the session timetable. Oliver to contact Andy in case something can be said about CWP.

* Status of recommendations

- Requirements section

BB - mention something on sustainability. Oliver to incorporate in "vision" section (and rename it).

BB - Should identify priorities, e.g. X in the next Y years
  There are items outside these priorities which are still strategic
  Make it clearer what the list is and what it isn't

- Prioritisation section

BB - what about AAI stuff, is that not a priority?
AC - identity topics are very important, strongly linked to diversity
   - Indigo has something ongoing with CMS.
   - There are other examples, mostly based on hiding X509 certs, but we must thing about replacing them.

LB - we don't use X509 for storage access

OK - where can we discuss this further? We have Fim4R and AARC, do they (should they) have storage tracks?
MJ - last EGI conference discussed this a lot too. The situation is quite fragmented.

OK - WLCG isn't well represented at these things. Maybe we need to do more "pull" to ensure a better connection.
AC - We need to identify how WLCG can take advantage of these projects.

- Recommendations section

General agreement on the nature of the straw-man proposals. To be re-circulated in more definitive form.

LB - Some kind of preGDB is a no-brainer

MJ - good to piggy back on existing meetings, should be more ad-hoc.

* Globus announcement

JA - Ian Bird is following up directly with NSF, maybe they will take responsibility.

MJ - Any short term NSF measure is welcome, but a bigger question is on the table regarding alternatives.