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    RAL Tier1 Experiments Liaison Meeting

    → Europe/London
    Access Grid (RAL R89)

    Access Grid

    RAL R89
      • 13:38 → 13:39
        Major Incidents Changes 1m
      • 13:39 → 13:40
        Summary of Operational Status and Issues 1m
        Speakers: Brian Davies (Lancaster University (GB)), Darren Moore (Science and Technology Facilities Council STFC (GB))
        RT1EL-20200729.docx
        RT1EL-20200729.pdf
      • 13:40 → 13:41
        GGUS /RT Tickets 1m

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

      • 13:41 → 13:42
        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

      • 13:42 → 13:43
        Experiment Operational Issues 1m
      • 13:44 → 13:45
        VO-Liaison ATLAS 1m
        Speakers: James William Walder (Science and Technology Facilities Council STFC (GB)), Dr Tim Adye (Science and Technology Facilities Council STFC (GB))

        RAL may wish to consider updating their FTS to latest release:
        https://its.cern.ch/jira/browse/FTS-1660
        (BNL GGUS: https://ggus.eu/index.php?mode=ticket_info&ticket_id=148076) 
        (not relevant for ATLAS, but if the information not otherwise propagated).

         

      • 13:46 → 13:47
        VO Liaison CMS 1m
        Speaker: Katy Ellis (Science and Technology Facilities Council STFC (GB))

        I am chasing a problem with the AAA service. I hear that Raul at Brunel is also seeing problems. I can see that IPv4 is performing at a lower rate than IPv6.

      • 13:48 → 13:49
        VO Liaison LHCb 1m
        Speaker: Raja Nandakumar (Science and Technology Facilities Council STFC (GB))

        LHCb:

        1. Jobs running mostly fine at RAL
        2. ECHO streaming issue :
          • Request from xrootd developers last Thursday to change some streaming block sizes on the xrootd client (Worker Node) side
            • Better compatibility with CEPH defaults
          • Struggling with different Worker Node issues since last Friday
            • Last Friday changes to WNs did not get picked up (overwritten by quattor)
            • Since Monday morning (known) issue with systemd vs failing xrootd containers, hopefully fixed today

        DUNE:

        1. No jobs in the current pipeline. Waiting for new simulation to be readied
        2. Moved to using sl7 queue at RAL last Wednesday (22 July 2020)
      • 13:52 → 13:53
        VO Liaison Others 1m
      • 13:53 → 13:54
        Experiment Planning 1m
      • 13:54 → 13:55
        Dune/protoDune 1m
      • 13:55 → 13:56
        Euclid 1m
      • 13:56 → 13:57
        SKA 1m
      • 13:57 → 13:58
        AOB 1m
      • 13:58 → 13:59
        Any other Business 1m
        Speakers: Brian Davies (Lancaster University (GB)), Darren Moore (Science and Technology Facilities Council STFC (GB))