ATLAS UK Cloud Support



Tim Adye (Science and Technology Facilities Council STFC (GB)), James William Walder (Science and Technology Facilities Council STFC (GB))

Password protected (same as (new) OPs Mtg)

ATLAS UK Cloud Support
Zoom Meeting ID
James William Walder
Useful links
Join via phone
Zoom URL
    • 10:00 AM 10:20 AM
      Status 20m
      • Outstanding tickets 10m
        • Outstanding tickets

          • 155008 TEAM atlas UKI-SCOTGRID-ECDF urgent NGI_UK in progress 2021-11-22 14:29:00 UKI-SCOTGRID-ECDF failing transfers due to expired certificate EGI

            • Transfers looking better, but need a confirmation
          • 154940 TEAM atlas UKI-NORTHGRID-LANCS-HEP top priority NGI_UK in progress 2021-11-24 10:10:00 UKI-NORTHGRID-LANCS-HEP_DATADISK: Failed to stage-in file / File transfer timed out during stage-in EGI

            • Discussion on how to proceed with decom of DPM and Commissioning of Ceph;
              • To create Jiri’s for each action and prepare test cluster
            • Previous tunings attempts did not help particularly
          • 154883 TEAM atlas UKI-NORTHGRID-LANCS-HEP less urgent NGI_UK in progress 2021-11-24 10:30:00 UKI-NORTHGRID-LANCS-HEP fails in transfers as destination EGI

            • As above
          • 154806 TEAM atlas UKI-LT2-QMUL less urgent NGI_UK in progress 2021-11-22 11:58:00 UKI-LT2-QMUL SOURCE transfer failures: [13] Result (Neon): SSL handshake failed EGI

            • Still in progress, noting failures correlate with large batched transfer requests
          • 154543 TEAM atlas UKI-SCOTGRID-ECDF urgent NGI_UK in progress 2021-11-12 11:44:00 DPM storage ACL configuration EGI

            • Needs an update
          • 154436 TEAM atlas RAL-LCG2 very urgent NGI_UK on hold 2021-11-10 13:52:00 RAL Echo Davs developments EGI

            • Buffer
          • 154200 TEAM atlas RAL-LCG2 less urgent NGI_UK on hold 2021-11-25 09:27:00 RAL-LCG2 deletion issues with error “The requested service is not available at the moment” EGI

            • Testing for deletions working well so far
          • 153367 TEAM atlas RAL-LCG2 urgent NGI_UK on hold 2021-11-10 14:08:00 HTTPS on RAL CTA EGI

            • Awaiting testing
      • CPU 5m

        New link for the site-oriented dashboard

        • RAL

          • Jobs remaining largely healthy, but below pledge
        • Northgrid

          • Man slight below usual levels
        • London

          • QMUL dips from HC failures
        • SouthGrid

          • NTR
        • Scotgrid

          • NTR

      • Other new issues / tasks 5m

        Renabling GPU queue for QMUL

        Upgraded dCache; Investigating dCache bug with copying output with NFS
        SRR was looking ok, but had problems with SRR service

        UKI-LT2-BRUNEL_DATADISK (offline, needing new backplane)

        RAL-LCG2 capacity reduction:

        Xrootd 5.3.X (X>=3) needed for VP sites

        Liverpool: retiring disk servers; space reduction needed

        Wide variance in transfer speeds from Cern to RAL (via gridFTP); similar effects can be seen at other T1s, but RAL per-file throughput is slower than the average

    • 10:20 AM 10:40 AM
      Ongoing Items 20m
      • CentOS7 - Sussex

        • Looking fine; should aim to close this now?
      • TPC with http

        • NTR
      • Storageless Site test (Oxford)

        • Reverting back to original configuration after problems with direct-io



    • 10:40 AM 10:50 AM
      News round-table 10m
      • Dan

        • NTR
      • Gerard

        • Ntr
      • Steven

        • NTR
      • Matt

        • Ntr
      • Patrick

        • NTR
      • Peter

        • NTR
      • Sam

        • Need discussion on Ceph to CephFS migration and possibilities for ATLAS.



    • 10:50 AM 11:00 AM