ATLAS UK Cloud Support

Thursday 9 Dec 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

• 155214 USER atlas RAL-LCG2 less urgent NGI_UK in progress 2021-12-07 13:29:00 stuck staging request at RAL EGI

  • • File now staged, but why stuck for so long?

  • 155199 TEAM atlas UKI-SCOTGRID-ECDF less urgent NGI_UK in progress 2021-12-07 13:08:00 Transfer and deletion error at UKI-SCOTGRID-ECDF as a destination EGI

    • Transfers appear to have returned to normal. No explanation yet to the cause

  • 155141 TEAM atlas UKI-LT2-Brunel less urgent NGI_UK in progress 2021-12-08 18:43:00 Transfers from UKI-LT2-Brunel fail with “Internal Server Error” EGI

    • Hardware back online, but some files need to be declared as lost.
    • Once files removed from the namespace, JW to delete

  • 154806 TEAM atlas UKI-LT2-QMUL less urgent NGI_UK in progress 2021-11-28 12:34:00 UKI-LT2-QMUL SOURCE transfer failures: [13] Result (Neon): SSL handshake failed EGI

    • Return to investigation once QMUL online

  • 154543 TEAM atlas UKI-SCOTGRID-ECDF urgent NGI_UK in progress 2021-12-08 12:35:00 DPM storage ACL configuration EGI

    • Site will get to it at some point

  • 154436 TEAM atlas RAL-LCG2 very urgent NGI_UK on hold 2021-12-08 13:25:00 RAL Echo Davs developments EGI

    • Update of status given in the meeting

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

    • Awaiting next year at this point. Don’t want to overlap ATLAS commissioning tests with Migration

---

● CPU

• • RAL

    • Remain volatile. Networking issue over weekend took out jobs and reduced capacity

  • Northgrid

    • MAN a bit variable

  • London

    • QMUL in DT, IC back to more normal running

  • SouthGrid

    • N/A JW to check on why no jobs using the Xcache (answer - its all Evgen)

  • Scotgrid

    • Blip for GLA; reason unclear

---

● Ongoing Items

• TPC with http

  • Planning of Glasgow Ceph -> Cephfs migration
    • Possible options of ATLAS orchastrated migration, or internal ‘rsync’
    • JW to understand ‘rate and depth’ of data churn

• Storageless Site test (Oxford)

  • Discussions on Xcaches in general; funding them, sizing them, and their usefulnes.
    • Also, whether anything to improve for Ox

• LANCS Storage migration

  • No update

 

 

---

● News round-table

• Alessandra
  • NTR
• Dan
  • Will be done with updates today
• Gerard
  • NTR
• Matt
  • Apologies for absence 
• Patrick
  • Apologies for absence
• Peter
  • NTR
• Sam
  • NTR
• Steven
  • NTR
• Vip
  • NTR

---

● AOB

• Next week, should be last meeting of the year

 

 

10:00 → 10:20 Status

10:20 → 10:40 Ongoing Items

• TPC with http

  • Planning of Glasgow Ceph -> Cephfs migration
    • Possible options of ATLAS orchastrated migration, or internal ‘rsync’
    • JW to understand ‘rate and depth’ of data churn

• Storageless Site test (Oxford)

  • Discussions on Xcaches in general; funding them, sizing them, and their usefulnes.
    • Also, whether anything to improve for Ox

• LANCS Storage migration

  • No update

 

 

10:40 → 10:50 News round-table

• Alessandra
  • NTR
• Dan
  • Will be done with updates today
• Gerard
  • NTR
• Matt
  • Apologies for absence 
• Patrick
  • Apologies for absence
• Peter
  • NTR
• Sam
  • NTR
• Steven
  • NTR
• Vip
  • NTR

10:50 → 11:00 AOB

ATLAS Monitoring (UK Cloud)

• Next week, should be last meeting of the year