Week of 201214

WLCG Operations Call details

  • For remote participation we use the Vidyo system. Instructions can be found here.

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 wlcg-scod@cernSPAMNOTNOSPAMPLEASE.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



  • remote: Kate (chair, DB), Julia (WLCG), Maarten (ALICE, WLCG), Borja (monitoring), Gavin (computing), Andrew (NL-T1), Vincent (security), Ivan (ATLAS), Andrew (TRIUMF), Daniel (security), Federico (LHCb), Christoph (CMS), Dave M (FNAL), Alberto (monitoring), Pepe (PIC)

Experiments round table:

  • CMS reports ( raw view) -
    • Basically like last week
    • Good Usage of resources (~205k cores for production and ~60k for analysis)
    • No major troubles

  • ALICE -
    • Expectations for the end-of-year break:
      • steady MC production
      • raw data processing
      • analysis possibly at a lower level than usual
    • Thanks to all sites and experts!
    • Best wishes for 2021 !

  • LHCb reports ( raw view) -
    • NTR
    • Activity:
      • MC and WG productions; User jobs.

Sites / Services round table:

  • ASGC: nc
  • BNL: nc
  • EGI: nc
  • IN2P3: NTR
  • KISTI: nc
  • KIT: NTR
  • NDGF: nc
  • NL-T1:
    • The Sara-matrix dCache is being updated.
  • NRC-KI: nc
  • OSG: nc
  • PIC: NTR
  • RAL: nc

  • CERN computing services: NTR
  • CERN storage services:
  • CERN databases: NTR
  • Monitoring:
    • Migration of MONIT flows from Vofeed to CRIC postponed until January
  • MW Officer:
  • Networks: NTR
  • Security: EGI sent notifications to sites with outdated/vulnerable dCache in BDII


  • (KIT, Xavier Mol): Sorry, I cannot attend to this meeting, but will you switch over to Zoom soon?
A move to Zoom is planned for January.

Season's Greetings!

  • THANKS for your help in making 2020 a successful year for WLCG !
    • Best wishes for the New Year !

  • Next meeting: Mon Jan 4
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Topic revision: r18 - 2020-12-14 - NikolayVoytishin
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