DOMA / TPC Meeting

Wednesday 18 Nov 2020, 17:30 → 18:40 Europe/Zurich

Topic: WLCG DOMA TPC Meeting

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Token testbed

We went through the tests (link in the section minutes). There is development to do and not everyone has clear what are the priorities. There are also differences because different storage providers use different libraries underneath,We are going to wait for the WLCG workshop and the next authz meeting to understand what is the time scale to work on this and what we want to go with first.

However organised the work storage developers can now look at the testbed results on amnesiac and that should make it easier to evaluate changes.

Experiments

ATLAS is putting online the T1s it has increased the number of sites in production to 26. The reason to do this is to better understand the bottlenecks that appear in Petr's stress tests. He reports an order of magnitude difference with INFN-T1 between webdav and gsiftp. INFN-T1 will be enabled next Monday in ATLAS production. EOSATLAS was in the pipeline to be enabled but we need to quantify the effects of the checksum race condition.

Andrea reported about the ESCAPE tests which highlighted a checksum problem when uploading using the rucio clients. There is already a rucio ticket.

CMS has made the big move to rucio last Wednesday. Not using it yet for WEBdav but it'll make things easier in the future.

EOSCMS is not yet open to the outside. elvin will look into it.

FTS/gfal changes

Mihai reports that the changes we talked about are less straightforward than we thought and it is not enough to move block of codes from FTS to gfal. Problem is that all the information needed to request a token is not available to gfal but to FTS so that will need to be redressed. Also we need to decide if we want tokens to work for all the use cases or only for TPC. Andrea says there shouldn't be a problem because the tokens can be parsed so the code always know what they are for. Alessandra asks if there is a ticket that can be used to track this if it takes longer than expected. There is a JIRA ticket Mihai will circulate it.

Will adjourn on these topic to after the WLCG workshop.

 

 

 

17:30 → 17:55 Token Authorization testbed

Speakers: Andrea Ceccanti (Unknown), Andrea Ceccanti (Universita e INFN, Bologna (IT))

# WLCG JWT compliance test suite in CI

WLCG JWT compliance test suite is now running in CI on GH actions:

https://github.com/indigo-iam/wlcg-jwt-compliance-tests/actions

Runs every day at 13 UTC.

Results are published on amnesiac (requires WLCG auth):

https://amnesiac.cloud.cnaf.infn.it/wlcg/

Last run:

https://amnesiac.cloud.cnaf.infn.it:8443/wlcg/jwt-compliance-reports/20201118_171224/joint-report.html

 

 

 

17:55 → 18:05 Experiments production

Speakers: Alessandra Forti (University of Manchester (GB)), Diego Davila Foyo (Univ. of California San Diego (US)), Petr Vokac (Czech Technical University in Prague (CZ))

18:05 → 18:15 http/xrootd protocol

Speakers: Brian Paul Bockelman (University of Wisconsin Madison (US)), Wei Yang (SLAC National Accelerator Laboratory (US))

18:15 → 18:25 FTS/gfal HTTP Protocol Update

Speaker: Mihai Patrascoiu (CERN)

18:25 → 18:30 AOB