DOMA / TPC Meeting

Wednesday 2 Sept 2020, 17:30 → 18:50 Europe/Zurich

We will use Zoom

https://cern.zoom.us/j/98672039467?pwd=dXgzVW9BalhjS3lKdEVTV1F0NTFvZz09

Meeting ID: 215 543 044

https://cern.zoom.us/j/98672039467?pwd=dXgzVW9BalhjS3lKdEVTV1F0NTFvZz09

Meeting ID: 215 543 044

https://cern.zoom.us/j/98672039467?pwd=dXgzVW9BalhjS3lKdEVTV1F0NTFvZz09

Meeting ID: 215 543 044

1 SRM - tape T0 - T1 transfers discussion

Speakers: Michael Davis (CERN), Petr Vokac (Czech Technical University (CZ))

CERN Tape Archive (CTA) and LHCb T0→T1 transfers

tpc_20200902_tapes-2.pdf

2 Experiments tests

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

• WLCG OIDC Rucio Functional Tests
  • 1MB transferred every hour between all participating sites
  • dCache, DPM, EOS, StoRM, XRootD
  • only StoRM -> EOS fails 100%
• FTS-1663 sensitive informations in gfal/FTS output with verbose logging (tokens)
  • --filter-sensitive ... I would prefer --log-sensitive
  • not sure if we can fully succeed (e.g. signed URL in log files)
• plan to (stress) test big ATLAS production sites
  • gsiftp vs. http-tpc vs. xrootd-tpc
  • different source / destination storage implementation
    • dCache, DPM, StoRM, XRootD, EOS(?)
      • could we get latest StoRM at INFN-T1
    • stress one destination with multiple sources
    • stress one source with multiple destinations
  • different file size (0, 1kB, 1MB, 1GB, 2GB, 4GB)
  • few thousands transfers per each test
  • analyse transfer rate and reliability for different transfer parameters

3 Token Authorization testbed

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

# Second Token-based AuthN/Z Hackathon

https://doodle.com/poll/sa7ewgwuw4zcn7pf

Most voted option: 16-17-18 September 15-18 CEST

Topics:

- WLCG JWT profile compliance
- Audience restrictions and token exchange
- Group-based authorization
- Local user mapping

Pre-requisites:
- All developers registered in WLCG VO
- oidc-agent client configuration in shape to get tokens
- List of endpoints for RUCIO/FTS/SEs

Shared google doc to collect this info:
https://docs.google.com/document/d/1Qgg1fM5_KpGL5QwMSQ59FOYWEo-YNxvSBkbK7bis4so/edit#

4 HTTP Protocol Update

Speaker: Brian Paul Bockelman (University of Nebraska Lincoln (US))

5 Xrootd Protocol Update

Speaker: Wei Yang (SLAC National Accelerator Laboratory (US))

6 Discussion