Week of 220704

WLCG Operations Call details

• For remote participation we use Zoom: https://cern.zoom.us/j/99591482961
  • The pass code is provided on the wlcg-operations list.
  • You can contact the wlcg-ops-coord-chairpeople list (at cern.ch) if you do not manage to subscribe.

General Information

• The purpose of the meeting is:
  • to report significant operational issues (i.e. issues which can or did degrade experiment or site operations) which are ongoing or were resolved after the previous meeting;
  • to announce or schedule interventions at Tier-1 sites;
  • to inform about recent or upcoming changes in the experiment activities or systems having a visible impact on sites;
  • to provide important news about the middleware;
  • to communicate any other information considered interesting for WLCG operations.
• The meeting should run from 15:00 Geneva time until 15:20, exceptionally to 15:30.
• The SCOD rota for the next few weeks is at ScodRota
• Whenever a particular topic needs to be discussed at the operations meeting requiring information from sites or experiments, it is highly recommended to announce it by email to the wlcg-scod list (at cern.ch) to allow the SCOD to make sure that the relevant parties have the time to collect the required information, or invite the right people at the meeting.

Best practices for scheduled downtimes

• Best practices for scheduled downtimes

Monday

Attendance:

• remote: Alessandro (CNAF), Andrew (TRIUMF), Borja (Chair, Monitoring), David (FNAL), Jarka (Computing), Jens (NDGF), Maarten (ALICE), Mark (LHCb), Onno (NL-T1), Petr (ATLAS), Pinja (Security)

Experiments round table:

• ATLAS reports ( raw view) -
  • expired certificate used for VOMS Admin to IAM account synchronization
  • operational procedures running two different VOMS services not always clear (e.g. account removed / recreated in VOMS Admin should be also removed from IAM)
  • 1/3 of ATLAS storages don't have WebDAV protocol defined in GOCDB => issues with automatic downtime propagation since we already completely removed SRM & GridFTP from our disk storages => broadcast to all clouds
  • Maarten: About the VOMS/IAM synchronization issues, the VOMS/IAM experts are working in close collaboration with the experiments to follow up on those

• CMS reports ( raw view) -
  • NTR

• ALICE
  • the ALICE tape SE at KIT became unreachable Fri morning, not fixed yet (GGUS:157936)

• LHCb reports ( raw view) -
  • NTR

Sites / Services round table:

• ASGC: NC
• BNL: US Independence day holiday - Lab Closed. - Nothing else to report
• CNAF: NTR
• EGI: NC
• FNAL: NTR
• IN2P3: NC
• JINR: NTR
• KISTI: NC
• KIT: NC
• NDGF: NTR
• NL-T1: NTR
• NRC-KI: NC
• OSG: NC
• PIC: NC
• RAL: NTR
• TRIUMF: NTR

• CERN computing services:
  • VOMS service incident OTG:0071740
  • Maarten: This incident in the end had very little impact on operations
• CERN storage services: NC
• CERN databases: NTR
• GGUS:
  • A new release is planned for Wed this week
    • Release notes
    • A downtime has been scheduled from 06:00 to 09:00 UTC
    • Test alarms will be submitted as usual
• Monitoring:
  • Distributed draft SiteMon availability/reliability reports for June 2022
• Middleware: NTR
• Networks: NC
• Security: NTR (Advisory likely to be sent out a bit later)

AOB: