ATLAS UK Cloud Support

Thursday 17 Dec 2020, 10:00 → 11:00 Europe/London

Zoom

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

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

Password protected (same as OPs Mtg, but repeated)

Outstanding tickets

• 149842 UKI-SCOTGRID-ECDF less urgent in progress 2020-12-15 02:10:00 UKI-SCOTGRID-ECDF: Low transfer efficiency due to TRANSFER ERROR: Copy failed with mode 3rd pull, wi…
  • Rob investigating with DPM. Interface to DPM is not facilitating progress.
• 149750 UKI-SOUTHGRID-RALPP less urgent in progress 2020-12-11 13:51:00 UKI-SOUTHGRID-RALPP: unable to connect to host
  • Resolved initial problem, by switching transfers through IPv6; underlying firewall/network issues to be resolved.
• 149362 UKI-SOUTHGRID-RALPP urgent in progress 2020-12-04 10:14:00 ATLAS CE failures on UKI-SOUTHGRID-RALPP-heplnx207
  • Possibly related to IPv issues; needs following-up on Jira
• 148342 UKI-SCOTGRID-GLASGOW less urgent in progress 2020-12-10 14:42:00 UKI-SCOTGRID-GLASGOW with transfer efficiency degraded and many failures
  • Files declared as lost; should be ok to close, if transfers now look ok.
• 146651 RAL-LCG2 urgent on hold 2020-10-16 11:56:00 singularity and user NS setup at RAL
  • On hold; awaiting underlying changes
• 142329 UKI-SOUTHGRID-SUSX top priority on hold 2020-11-05 10:52:00 CentOS7 migration UKI-SOUTHGRID-SUSX
  • Dev harvester instance issues - fixed for condor submitter.

CPU

• RAL

  • Ok; JW to ensure corepower is updated in new year

• Northgrid

  • 60k HS06 running; some issue started recently, perhaps with gridFTP

• London

• QMUL;

  • PDU replacements; issues with cabling from PDUs to Racks, to be replaced. -> increased downtime
  • Many improvement / some disruption next year leading to improved cooling / capacity.

  • Work on CE’s next week

• SouthGrid

  • OX squid sever down; moved to old server.

  • QMUL will use it’s old perf-sonar for it’s new squids.

• Scotgrid

  • Durham drop in capacity; starting to come back now

Other new issues

• Site availability and reliability for Glasgow follow-up; see associated tickets.
  • Mixture of CRIC and AGIS information being used.
  • Glasgow - to ensure all relevent info is included into GocDB
  • ATLAS - to see how much can be exposed before final push to CRIC

Ongoing issues

• CentOS7 - Sussex

  • Sussex - Peter reports dev server was fixed, so all pilots now working.
    • In a good state for provisioning of nodes in new year

• TPC with http

  • Expecting a deadline of May 2021 for deployment at most sites

• Storageless Site tests (Oxford)¶

  • No particular progress

• ECDF volatile storage

  • Awaiting JW to make SE changes from Jira

• Glasgow DPM Decommissioning

  • Sam preparing Ceph localgroupdisk
  • Hope for transfer across before / during Christmas
  • Gareth will put DPM in “AT RISK” of the period.

News round-table

• General

  • Most sites at limited response from next week

• Vip

• Asked about mu3e VO port number;

• Dan

  • NTR

• Matt

  • NTR

• Peter

  • NTR

• Sam

  • NTR

• Gareth

  • Will set at risk for DPM from the weekend

• JW

  • NTR

AOB

• Next UK Cloud meeting 7th January 2021
  • Happy Holidays!

 

10:00 → 10:20 Status

10:20 → 10:40 Ongoing Items

• CentOS7 - Sussex

  • Sussex - Peter reports dev server was fixed, so all pilots now working.
    • In a good state for provisioning of nodes in new year

• TPC with http

  • Expecting a deadline of May 2021 for deployment at most sites

• Storageless Site tests (Oxford)¶

  • No particular progress

• ECDF volatile storage

  • Awaiting JW to make SE changes from Jira

• Glasgow DPM Decommissioning

  • Sam preparing Ceph localgroupdisk
  • Hope for transfer across before / during Christmas
  • Gareth will put DPM in “AT RISK” of the period.

 

 

10:40 → 10:50 News round-table

• General

  • Most sites at limited response from next week

• Vip

• Asked about mu3e VO port number;

• Dan

  • NTR

• Matt

  • NTR

• Peter

  • NTR

• Sam

  • NTR

• Gareth

  • Will set at risk for DPM

• JW

  • NTR

10:50 → 11:00 AOB

Next Cloud Meeting: Jan 7th 2021
- Happy Holidays!