ATLAS UK Cloud Support

Thursday 26 Nov 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))

Meeting to be held via Zoom (https://ukri.zoom.us/j/97404730356)
Password protected (same as OPs Mtg)

Outstanding tickets

• 149362 UKI-SOUTHGRID-RALPP urgent in progress 2020-11-19 10:11:00 ATLAS CE failures on UKI-SOUTHGRID-RALPP-heplnx207
  • Waiting to drain and reinstall CE (On Monday)
• 148342 UKI-SCOTGRID-GLASGOW less urgent in progress 2020-11-12 17:24:00 UKI-SCOTGRID-GLASGOW with transfer efficiency degraded and many failures
  • Will look today and update
• 146651 RAL-LCG2 urgent on hold 2020-10-16 11:56:00 singularity and user NS setup at RAL
  • on hold
• 142329 UKI-SOUTHGRID-SUSX top priority on hold 2020-11-05 10:52:00 CentOS7 migration UKI-SOUTHGRID-SUSX
  • on hold

CPU

• RAL

• Northgrid

  • Low CPU efficiency still seen for SHEF; configured to reasonable (expected) baseline setting, and iterate from there.
    • MC generation is good; appears to be network / file transfer that limits the efficiency

• London

  • OX moving of WNs went ok

• SouthGrid

• Scotgrid

  • cvmfs issues; rpm updates may have corrupted cache, and segfault autofs
    • (newer 5 series of) Kernel bug being discussed in cvmfs mailing lists (but may? be backported to old kernels?)
  • out of 60, lost 15 due to cvmfs issues; rebooting and bringing back online.

Other new issues

• Kibana usage, reported can be difficult beyond doing basic things.
• Apfmon; using CRIC for informaiton; did manually do a sync with AGIS to update and collect all CE’s

Ongoing issues

• CentOS7 - Sussex

  • no update

• Glasgow DPM decommissioning

  • Sam to create LOCALGROUPDISK pool on Ceph this week

• TPC with http

  • RAL test gateway updated to 5.0.3 with some additional patches; working as before

• ECDF -

  • Discussed in QoS
    • JBOD vs Raids brought up, and question on how the site would like to proceed.

• Oxford storageless tests

  • Disks needed for primary disk servers. Replaced with 3TB; Vip to be provided with Arc configs for setting up new queues

News round-table

(NTR)

• Vip
  • NTR
• Dan
  • NTR
• Peter
  • NTR
• Sam
  • NTR
• Gareth
  • GR main person to move hardware at the moment.
• JW
  • NTR

AOB

10:00 → 10:20 Status

10:20 → 10:40 Ongoing Items

• CentOS7 - Sussex

  • no update

• Glasgow DPM decommissioning

  • Sam to create LOCALGROUPDISK pool on Ceph this week

• TPC with http

  • RAL test gateway updated to 5.0.3 with some additional patches; working as before

• ECDF -

  • Discussed in QoS
    • JBOD vs Raids brought up, and question on how the site would like to proceed.

• Oxford storageless tests

  • Disks needed for primary disk servers. Replaced with 3TB; Vip to be provided with Arc configs for setting up new queues

10:40 → 10:50 News round-table

• Vip
  • NTR
• Dan
  • NTR
• Peter
  • NTR
• Sam
  • NTR
• Gareth
  • GR main person to move hardware at the moment.
• JW
  • NTR

10:50 → 11:00 AOB