Week of 151123

WLCG Operations Call details

  • At CERN the meeting room is 513 R-068.

  • 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 until 15:20, exceptionally to 15:30.
  • The SCOD rota for the next few weeks is at ScodRota
  • General information about the WLCG Service can be accessed from the Operations Web
  • Whenever a particular topic needs to be discussed at the daily meeting requiring information from site or experiments, it is highly recommended to announce it by email to wlcg-operations@cernSPAMNOTNOSPAMPLEASE.ch to make sure that the relevant parties have the time to collect the required information or invite the right people at the meeting.

Links to Tier-1 downtimes




  • local: Maria Alandes (SCOD), Maarten Litmaath (ALICE), Stefan Roiser (LHCb), Andrei Dumitru (DB)
  • remote: Jose Enrique Garcia Navarro (ATLAS), Christoph Wissing (ALICE), Michael Ernst (BNL), Francesco Noferini (CNAF), Lisa Giachetti (FNAL), Rolf Rumler (IN2P3), Pavel (KIT), Christian (NDGF), Onno Zweers (NL-T1), Kyle Gross (OSG), Pepe Flix (pic), Tiju Idiculla (RAL)

Experiments round table:

  • CMS reports (raw view) -
    • Very high load: 150k parallel jobs
    • No major issues

  • ALICE -
    • NTR

Sites / Services round table:

  • ASGC: NA
  • BNL: NTR
  • CNAF: We confirm the intervention on the general purpose router on the 24th (Tomorrow) at 18.00. We scheduled a down of about 2 hours (conservative approach because of the problem we got in the past).
  • GridPP: NA
  • IN2P3: NTR
  • JINR: NA
  • KIT: Ongoing problems with disk buffer space that is not released automatically. This affects ATLAS.
  • NDGF: 2 minutes outage in the LHC OPN connection at Denmark due to an operator mistake.
  • NL-T1: NTR
  • NRC-KI: NA
  • OSG: NTR. Absent next Thursday due to Thanksgiving holiday.
  • PIC: dCache downtime scheduled tomorrow that will be unavailable from 9h-15h. Stefan asks whether the CEs are now draining, Pepe confirms the long queue is now draining.
  • RAL: NTR

  • CERN batch and grid services: NA
  • CERN storage services: NA
  • Databases: NTR
  • GGUS: NA
  • Grid Monitoring: NA
  • MW Officer: NA




  • local:
  • remote:

Experiments round table:

  • ALICE -
    • So far the start of the HI run has been OK at least from the grid perspective.

Sites / Services round table:

  • ASGC:
  • BNL:
  • CNAF:
  • FNAL:
  • GridPP:
  • IN2P3:
  • JINR:
  • KISTI:
  • KIT:
  • NDGF:
  • NL-T1:
  • NRC-KI:
  • OSG:
  • PIC:
  • RAL:

  • CERN batch and grid services:
  • CERN storage services:
  • Databases:
  • GGUS:
  • Grid Monitoring:
  • MW Officer:


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Topic revision: r9 - 2015-11-26 - MaartenLitmaath
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