Week of 200727

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



  • local:
  • remote: Ivan (ATLAS), Xavier (KIT), Darren (RAL), Alberto (Monitoring), Eric (Storage), Dave (FNAL), Vincent (Security), Christophe (CMS), Maarten (ALICE), Julia (WLCG), Xin Zhao (BNL), Andrew (TRIUMF), Elena (CNAF), Luis (Compute), Borja (Monitoring), Mark (LHCb), Miro (DB, Chair)

Experiments round table:

  • ALICE -
    • NTR

  • LHCb reports ( raw view) -
    • Activity:
      • Usual MC, user and WG production.
      • Namespace migration of dCache completed last week. Many thanks to GridKa and dCache experts for help with this.

Sites / Services round table:

  • ASGC: NC
  • BNL: NTR
  • EGI: NC
  • IN2P3: NC
  • KIT:
    • Last week's downtime for remodeling the LHCb dCache namespace was successful. We additionally updated dCache to the latest bugfix release of the 5.2 branch and move the database onto new hardware.
  • NDGF: NC
  • NL-T1:
  • NRC-KI: NC
  • OSG: NC
  • PIC: NC
  • RAL: NTR

  • CERN computing services:
  • CERN storage services:
    • CASTOR ALICE, LHCb and CMS instances will be rebooted to catch up with the latest kernels. ALICE at 9h, LHCb at 10h, CMS at 11h.(OTG:0058033, OTG:0058036, OTG:0058057).
  • CERN databases: NTR
  • GGUS:
    • A new release is planned for Wed this week
      • Release notes
      • A downtime has been scheduled for 06:30-09:30 UTC
      • Test alarms will be submitted as usual
  • Monitoring:
    • Final availability reports for June sent around
  • MW Officer: NC
  • Networks: NTR
  • Security: NTR


This topic: LCG > WebHome > WLCGCommonComputingReadinessChallenges > WLCGOperationsMeetings > WLCGOpsMeetingWeek200727
Topic revision: r19 - 2020-07-27 - MarianBabik
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