Outstanding tickets

• 147770 UKI-NORTHGRID-LANCS-HEP very urgent in progress 2020-07-08 14:29:00 UKI-NORTHGRID-LANCS-HEP: stage-out failures

  • Disk server for DPM overloaded; work to be done on improvements

• 147744 UKI-LT2-QMUL urgent in progress 2020-07-08 11:59:00 Inaccessible files at UKI-LT2-QMUL_DATADISK

  • Work ongoing; Next version of storm should be better here

• 146651 RAL-LCG2 urgent in progress 2020-05-27 10:43:00 singularity and user NS setup at RAL

  • JW to get ticket updated.

• 146374 UKI-NORTHGRID-SHEF-HEP urgent on hold 2020-06-24 16:18:00 ATLAS pilot jobs idle on UKI-NORTHGRID-SHEF-HEP CE

  • on hold

• 144759 UKI-SCOTGRID-GLASGOW less urgent on hold 2020-06-09 07:59:00 High traffic from UKI-SCOTGRID-GLASGOW on RAL CVMFS Stratum1

  • on hold

• 142329 UKI-SOUTHGRID-SUSX top priority on hold 2020-06-04 14:05:00 CentOS7 migration UKI-SOUTHGRID-SUSX

  • on hold

New issues

CPU

• RAL

  • Change to ATLAS sub-group quota; CMS took extra slots, ATLAS pledge down; now reverted and recovering slots

• Northgrid

• London

  • QMUL: ATLAS job failures on certain node sets.

• SouthGrid

• Scotgrid

  • Xrootd with different versions of voms-xroot to avoid both sets of problems

Other new issues

• Problem with HC / ATLAS this morning; mass HC-blacklisting.
  • All sites should have been manually set back online.
• Storage downtimes
  • Site admins are requested to declare downtime for ALL published access protocols at the site. If not all protocols are declared ‘stopped’, data access will be attempted through allowed protocols
  • https://twiki.cern.ch/twiki/bin/view/AtlasComputing/SitesSetupAndConfiguration#Site_blacklisting
• OX Arc6 upgrade
  • Discussion on current status and current issues
• Status: GLASGOW - CEPH

  • https://its.cern.ch/jira/browse/ADCINFR-152

  • Work needed on gFal2 and/or xrootd-ceph plugin discussed; also would affect RAL;

  • Update of current status; plans for gridFTP, xroot and redirection brought up

  • gridFTP works ok, but will be depricated (for 12 months) (external)

    • Can be good enough for production work for now

  • gridFTP is the external protocal

  • will aim to get the xrootd write-back

  • and caching is in development

  • If necessary can consider to set internal access to use xrdcp (rather than rucio copy)

• QMUL:
  • The job failures I believe are all related to the error “generate got a SIGKILL signal (exit code 137)” which I think is and out of memory error resulting the OS killings the job,
  • always arcproxy that gets killed

Ongoing issues

• CentOS7 - Sussex
  • on-hold
• Grand Unified queues
  • on-hold

News round-table

(NTR)

• Vip

  • Discussion on arc-ce6 and possibilities of mapping-errors; followed-up on TB-support

• Dan

  • NTR

• Matt

  • ARC-6 being updated

• Peter

  • Will update Agis for getting LANCS test queue targeting CE

• Alessandra

  • NTR

• Sam

  • NTR

• Gareth

  • NTR

• Tim

  • NTR

• JW

  • Working on http TPC with small updates to work around current configuration setup