ATLAS UK Cloud Support

→ Europe/London
Zoom

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

https://cern.zoom.us/j/98434450232

Password protected (same as (new) OPs Mtg)

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● Outstanding tickets

    • 156204 TEAM atlas UKI-NORTHGRID-MAN-HEP less urgent NGI_UK in progress 2022-03-01 09:39:00 UKI-NORTHGRID-MAN-HEP deletion errors due to unexpected server error EGI

      • Now should be fixed; following up on HC test failure

    • 156179 TEAM atlas UKI-SCOTGRID-DURHAM less urgent NGI_UK assigned 2022-03-01 16:42:00 Stage-out timeouts at UKI-SCOTGRID-DURHAM_SL7_UCORE EGI

      • tmp directory cleaning might be removing files before transfer is completing. Being investigated
      • Still some cause to check consistency

    • 155881 TEAM atlas UKI-SCOTGRID-GLASGOW less urgent NGI_UK in progress 2022-03-01 09:40:00 Stage-in at UKI-SCOTGRID-GLASGOW_CEPH timeouts EGI

      • Unclear, seems intermittent

    • 154806 TEAM atlas UKI-LT2-QMUL less urgent NGI_UK in progress 2022-03-01 11:33:00 UKI-LT2-QMUL SOURCE (and DESTINATION) transfer failures EGI

      • Increase No. connections
      • Dune using gridFTP to do large transfers

    • 154543 TEAM atlas UKI-SCOTGRID-ECDF urgent NGI_UK in progress 2022-02-08 14:01:00 DPM storage ACL configuration EGI

      • Might not now break the cache, and be rather straightforward to do; but needs care and time to monitor

    • 154436 TEAM atlas RAL-LCG2 very urgent NGI_UK in progress 2022-03-02 11:47:00 RAL Echo Davs developments EGI

      • Enabled webdavs for writes; transfers generally ok, untill xrootd issues, which are increasingly common
      • moved back to gridFTP to reduce backlog

    • 153367 TEAM atlas RAL-LCG2 urgent NGI_UK on hold 2021-12-01 15:37:00 HTTPS on RAL CTA EGI

      • Castor -> CTA migration ongoing; some ACL settings are causing additional delays

● CPU

    • RAL

      • Largely ok; a drop yesterday as arc ce and condor got out of sync

    • Northgrid

      • Ok; Lancs not yet managed to consider changes to fairshare

    • London

      • NTR

    • SouthGrid

      • OX Some Xcache updates; Vip migrated to 5.4.1 in the meeting

    • Scotgrid

      • GLA Xcache restart
      • Durham stage-out timeouts; possibly due to scripts that clean up the space on the wns.

● Ongoing Items

  • TPC with http

    • RAL wedavs for writes not so succeful
    • GLA still looking

  • Storageless Site tests

    • OX; upgraded to 5.4.1
    • BHAM; continued working on VP

  • Storage migrations

    • How is the interaction of StorM
      • Is it Storm that resolves the URL / path, (and not )

 

 

● News round-table

  • Alessandra

    • NTR

  • Dan

    • NTR

  • Gerard

    • NTR

  • Stefen

  • Matt

    • NTR;

  • Peter

    • NTR

  • Sam

    • NTR

  • Vip

    • NTR

 

 

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