RAL Tier1 Experiments Liaison Meeting

Wednesday 12 Jun 2024, 13:30 → 15:00 Europe/London

Access Grid (RAL R89)

14:00 → 14:01 Major Incidents Changes

14:05 → 14:06 Summary of Operational Status and Issues

Speakers: Brian Davies (Lancaster University (GB)), Darren Moore, Kieran Howlett (STFC RAL)

Weekly Report 12 June 2024 (1).docx

Weekly Report 12 June 2024 (1).pdf

14:10 → 14:11 Experiment Operational Issues

14:15 → 14:16 VO Liaison CMS

Speaker: Katy Ellis (Science and Technology Facilities Council STFC (GB))

14:20 → 14:21 VO-Liaison ATLAS

Speakers: Dr Brij Kishor Jashal (RAL, TIFR and IFIC), Jyoti Prakash Biswal (Rutherford Appleton Laboratory)

Meeting notes ATLAS liason

14:25 → 14:26 VO Liaison Others

14:30 → 14:31 VO Liaison LHCb

Speaker: Alexander Rogovskiy (Rutherford Appleton Laboratory)

869c8d193eab93f9fd010b2ade3ee51d.png

LHCb:

• Issues with ECHO manager after the update (see plot attached)
• Network issue between RALPP and RAL
  • Solved
• A very peculiar job was executed at RAL's lcg2533 WN
  
  • It tried to calculate file's checksum 4 times, all 4 times got different results
  • WN looks OK
• ETF Tests for RAL's ARC CEs switched from GridFTP to https on preprod
  
  • Seems to work in general, but sometimes gives strange Job completed but failed to get job output
  • GridFTP tests fore ECHO removed
• Xrootd bug follow-up?

14:35 → 14:38 VO Liaison LSST

Speaker: Timothy John Noble (Science and Technology Facilities Council STFC (GB))

14:40 → 14:41 VO Liaison APEL

Speaker: Thomas Dack

14:45 → 14:46 AOB

14:50 → 14:51 Any other Business

Speakers: Brian Davies (Lancaster University (GB)), Darren Moore