Week of 130304

Daily WLCG Operations Call details

To join the call, at 15.00 CE(S)T Monday to Friday inclusive (in CERN 513 R-068) do one of the following:

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  2. To have the system call you, click here

The scod rota for the next few weeks is at ScodRota

WLCG Availability, Service Incidents, Broadcasts, Operations Web

VO Summaries of Site Usability SIRs Broadcasts Operations Web
ALICE ATLAS CMS LHCb WLCG Service Incident Reports Broadcast archive Operations Web

General Information

General Information GGUS Information LHC Machine Information
CERN IT status board WLCG Baseline Versions WLCG Blogs GgusInformation Sharepoint site - LHC Page 1


Monday

Attendance:

  • local: (Luc - ATLAS, Massimo, Ignacio, Maarten - ALICE, MariaD)
  • remote: (Stefano - LHCb, Wei-Jen - ASGC, Xavier - KIT, Michael - BNL, Pepe - PIC, Tiju - RAL, Thomas - NDGF, Rolf - IN2P3, Rob - OSG)

Experiments round table:

  • ATLAS reports (raw view) -
    • Central services
      • NTR
    • T1s
      • TAIWAN-LCG2, one disk server unavailable since Friday due to hardware failure. Data on disks was not accessible. The storage was rebuilt and back in production with the data access restored on Sunday.
      • CA cloud, starting Saturday many CA sites failing transfers due to expired CRL. The investigation was delayed due to a Scheduled Power Outage at TRIUMF-LCG2. CRL files were copied manually, services restarted, the issue looks fixed now, GGUS:91893 .

  • CMS reports (raw view) -
    • No one connected, no report on the CMS twiki since mid-February.

  • ALICE -
    • KISTI: main disk SE looks OK again
    • KIT: disk SE started failing Fri afternoon, fixed by restart Sat afternoon. Xavier (KIT) commented on this issue that ALICE jobs still strain their firewall. Maarten will get the site, middleware and experiment experts to check in a coordinated fashion via an existing mail thread.

  • LHCb reports (raw view) -
    • Ongoing activity as before: mainly MC and user jobs, some prompt processing (CERN + T2s), reprocessing activity almos done.
    • T0:
      • NTR
    • T1:
      • PIC: Problem reading header of some files using Xrd client talking with server dcgftp07.pic.es:1094 ("XrdClientMessage::ReadRaw: Failed to read header (8 bytes)"). Investigation ongoing.
      • NL-T1: GGUS:92048 - Problem in accessing files with Xrd client. Problem seems related to autorization token ("Xrd: CheckErrorStatus: Server [srm.grid.sara.nl] declared: Authorization check failed: No authorization token found in open request, access denied.(error code: 3010)"). From NL-T1 contact: "seems usual TURL resolution problem that we have over and over again, each time dCache is reset".
      • RAL: Some problem with network card on diskservers. Intervention ongoing. Tiju (RAL) confirmed the intervention is complete and the service back in operation again.

Sites / Services round table:

  • ASGC: ntr
  • KIT: ntr
  • BNL: ntr
  • PIC: Investigation on-going of LHCb problem reported above.
  • RAL: Scheduled intervention on Tue 2013/03/12 for a core network infrastructure switch replacement.
  • NDGF: Tomorrow 2013/03/05 pm there will be OS patching activity. GOCDB is updated about the service interruption. On Wed 2013/03/06 there will be an intervention at one of the NDGF sites. No more info at this point. MariaD said, as the meeting is now only twice a week, so announcements can't be done daily, please open a GGUS ticket and try notifying the unavalable site. The GOCDB info about this site will be displayed immediately.
  • IN2P3: ntr
  • OSG: ntr

  • CASTOR: Planned intervention on Mon 2013/03/11 with nameserver intervention required between 11am and 1pm CET. Experiments present think it is OK but Massimo will also send email.
  • Grid services: ntr
  • GGUS; ntr

AOB: Next meeting is on THURSDAY!

Thursday

Attendance:

  • local:
  • remote:

Experiments round table:

  • ALICE -
    • NTR

Sites / Services round table:

AOB:

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Topic revision: r7 - 2013-03-07 - MaartenLitmaath
 
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