ATLAS UK Cloud Support

Thursday 7 Oct 2021, 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 (new) OPs Mtg)

● Outstanding tickets

• • 154256 TEAM atlas UKI-SCOTGRID-GLASGOW less urgent NGI_UK in progress 2021-10-04 09:11:00 UKI-SCOTGRID-GLASGOW_CEPH has high failed jobs due to “File transfer timed out during stage-in” WLCG

    • Possibly due to the Xcache, not the ceph data movement

  • 154235 TEAM atlas RAL-LCG2 less urgent NGI_UK in progress 2021-10-07 07:57:00 RAL-LCG2 transfers fail with "TRANSFER globus_ftp_client: the server responded with an error 451 Gen… WLCG

    • Nikhef went into downtime; still to be resolved and understood if netowrking issue.

  • 154200 TEAM atlas RAL-LCG2 less urgent NGI_UK in progress 2021-10-06 18:33:00 RAL-LCG2 deletion issues with error “The requested service is not available at the moment” WLCG

    • Ongoing

  • 153550 TEAM atlas UKI-SOUTHGRID-RALPP less urgent NGI_UK in progress 2021-09-29 15:32:00 Transfer failure at UKI-SOUTHGRID-RALPP with “Failed to select pool: All pools are full\n” error WLCG

    • Resolved by updating the uri to include the protocol and port

  • 153367 TEAM atlas RAL-LCG2 urgent NGI_UK in progress 2021-10-05 15:50:00 HTTPS on RAL CTA WLCG

    • Information updated

---

● CPU

• • RAL

    • Usual switching of jobs

  • Northgrid

    • N/a

  • London

    • QMUL: ssl timeouts; WebDav on runs on one of the two cpu sockets; being looked into

  • SouthGrid

    • Sussex with sigXcpu errors

  • Scotgrid

    • Impacted by the stage-in issues

•  

 

---

● Ongoing Items

• CentOS7 - Sussex

  • SIGXCPU error in pilotlog
  • Lot’s of swap; consider to change it
  •  

• TPC with http

  • Lots to look at from the post-mortem; RAL import from CERN not really seeing writes from the Data Challenge

• Storageless Site test (Oxford)

  • NA

 

 

---

● News round-table

• Alessandra

  • NTR

• Dan

  • Refurbishment: now integrated into building refurb.

• Gerard

  • NTR

• Matt

  • Sent appologirs

• Patrick

  • NTR

• Sam

  • NTR

• Vip

  • NTR

 

 

10:00 → 10:20 Status

10:20 → 10:40 Ongoing Items

• CentOS7 - Sussex

  • SIGXCPU error in pilotlog
  • Lot’s of swap; consider to change it
  •  

• TPC with http

  • Lots to look at from the post-mortem; RAL import from CERN not really seeing writes from the Data Challenge

• Storageless Site test (Oxford)

  • NA

 

 

10:40 → 10:50 News round-table

• Alessandra

  • NTR

• Dan

  • Refurbishment: now integrated into building refurb.

• Gerard

  • NTR

• Matt

  • Sent appologirs

• Patrick

  • NTR

• Sam

  • NTR

• Vip

  • NTR

 

 

10:50 → 11:00 AOB

ATLAS Monitoring (UK Cloud)