RAL Tier1 Experiments Liaison Meeting

Wednesday 10 Jan 2024, 13:30 → 15:00 Europe/London

Access Grid (RAL R89)

14:00 → 14:01 Major Incidents Changes

14:01 → 14:02 Summary of Operational Status and Issues

Speakers: Brian Davies (Lancaster University (GB)), Darren Moore (Science and Technology Facilities Council STFC (GB)), Kieran Howlett (STFC RAL)

Weekly Report 10 January 2024.docx

Weekly Report 10 January 2024.pdf

14:02 → 14:03 GGUS /RT Tickets

https://tinyurl.com/T1-GGUS-Open
https://tinyurl.com/T1-GGUS-Closed

14:04 → 14:05 Site Availability

https://lcgwww.gridpp.rl.ac.uk/utils/availchart/

https://cms-site-readiness.web.cern.ch/cms-site-readiness/SiteReadiness/HTML/SiteReadinessReport.html#T1_UK_RAL

http://hammercloud.cern.ch/hc/app/atlas/siteoverview/?site=RAL-LCG2&startTime=2020-01-29&endTime=2020-02-06&templateType=isGolden

14:05 → 14:06 Experiment Operational Issues

14:15 → 14:16 VO Liaison CMS

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

Echo transfer performance studies.pdf

No operational difficulties to report.

See attached presentation for Echo transfer studies.

Tokens now working for CMS - continuing tests while ATLAS being enabled for tokens.

4.5 weeks until data challenge!

14:16 → 14:17 VO-Liaison ATLAS

Speakers: James William Walder (Science and Technology Facilities Council STFC (GB)), Jyoti Prakash Biswal (Rutherford Appleton Laboratory)

RAL_jobAccounting.jpg

• GGUS-164676:
  • RAL-LCG2: Enable token support for storage; in progress.
  • Manual tests fail. 
  • Web page tests are successful.
  • No success on reading of the file in spite of using SAM  in the $PATH scope. 
  • Tried with revised permission, but no success yet -- investigation ongoing. 

 

• ATLAS S&C Week (05-09 February 2024):
  • Site Jamboree/ATLAS Clouds (06-08 February 2024)
    • UK Cloud talk. 
    • Questions for jamboree.

 

•  RAL has been below its pledge since 14:00 hrs yesterday.
  • Currently @~67k.
  • No HammerCloud exclusions. 

 

• DISK/TAPE efficiency @RAL.

 

• Any news on DC24 retests?

14:20 → 14:21 VO Liaison LHCb

Speaker: Alexander Rogovskiy (Rutherford Appleton Laboratory)

jobs.png

transfers_from.png

transfers_to.png

Tickets:

• Slow checksums
  • Checksum library is ready to test
• Network issue between RALPP and RAL
  • No updates

Operational issues:

• Problems with transfers from Beijing to RAL
  
  • Seems ot be a Beijing routing issue, ticket opened against them
• Low number of running LHCb jobs at RAL
  
  • Most probably due to drain of 2020 and 2021 gens

14:25 → 14:28 VO Liaison LSST

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

14:30 → 14:31 VO Liaison Others

14:31 → 14:32 AOB

14:32 → 14:33 Any other Business

Speakers: Brian Davies (Lancaster University (GB)), Darren Moore (Science and Technology Facilities Council STFC (GB))