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    RAL Tier1 Experiments Liaison Meeting

    → Europe/London
    Access Grid (RAL R89)

    Access Grid

    RAL R89
    RAL Tier1 Experiments Liaison Meeting
    Zoom Meeting ID
    66811541532
    Host
    Alastair Dewhurst
    Useful links
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    Zoom URL
      • 14:00 → 14:01
        Major Incidents Changes 1m
      • 14:01 → 14:02
        Summary of Operational Status and Issues 1m
        Speakers: Brian Davies (Lancaster University (GB)), Darren Moore (Science and Technology Facilities Council STFC (GB)), Kieran Howlett (STFC RAL)
        Tier-1PowerTesting 2023.xlsx
        Weekly Report 25 October 2023 (1).docx
        Weekly Report 25 October 2023 (1).pdf
      • 14:02 → 14:03
        GGUS /RT Tickets 1m

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

      • 14:04 → 14:05
        Site Availability 1m

        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 1m
      • 14:15 → 14:16
        VO Liaison CMS 1m
        Speaker: Katy Ellis (Science and Technology Facilities Council STFC (GB))
      • 14:16 → 14:17
        VO-Liaison ATLAS 1m
        Speakers: James William Walder (Science and Technology Facilities Council STFC (GB)), Jyoti Prakash Biswal (Rutherford Appleton Laboratory)
        • No open GGUS ticket at the moment.

         

        • Recent issues with HammerCloud:
          • Job submission stale starting 23 October evening from ~17:00 hrs (CERN time), possible delays in exclusions/recoveries.
          • Job status could not be retrieved from Panda. 
          • SLS details grafana shows unavailable Panda servers at that time.
          • The sites showed "s" (submitted) status for the duration. 

         

         

        • Discussions on the SWAP issue.

         

      • 14:20 → 14:21
        VO Liaison LHCb 1m
        Speaker: Alexander Rogovskiy (Rutherford Appleton Laboratory)
        ceph_throughput_25102023.png

        LHCb:

        1. Restripping campaign started on Monday, there were some tape recalls from antares to ECHO
          • Surprisingly, root protocol was used.
        2. RAL is going to get ~32% of Heavy Ion data (~3.5PB).
        3. Some data from RRCKI is being transferred to RAL.

         

        ALICE:

        • Issue with tpc tests to antares is being investigated. 
          • I can reproduce the issue now
          • It seems like xrdcp is unable to get data from eos hosts for some reason
          • To be investigated more with antares team
        • Seems like ALICE network statistics is not working for RAL
          • Our storages do not send appropriate data?

         

      • 14:25 → 14:28
        VO Liaison LSST 3m
        Speaker: Timothy John Noble (Science and Technology Facilities Council STFC (GB))
      • 14:30 → 14:31
        VO Liaison Others 1m
      • 14:31 → 14:32
        AOB 1m
      • 14:32 → 14:33
        Any other Business 1m
        Speakers: Brian Davies (Lancaster University (GB)), Darren Moore (Science and Technology Facilities Council STFC (GB))