Week of 150504

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.

Monday

Attendance:

  • local:
  • remote:

Experiments round table:

  • Central Services
    • FTS server - client communication issue, timeouts, is affecting ATLAS badly. There was a request from FTS3 devs to upgrade FTS servers, can FTS3 service managers clarify? Thks
    • RAL Frontier down, GGUS:113409 - solved, thks.
  • ATLAS Internal
    • Rucio losing files: around 60 files per day are lost. Workarounds are in place but will ask Wen to check numbers of lost files for last few days after fixes are in place. An FTS update may help reduce the timeouts too. Will ask for update at WLCG meeting at 3.
    • Unavailable files on tape (RUCIO-1479). Need to find why tape replicas became unavailable and find other affected files.
    • Grid drained a bit on Saturday due to bug in rucio introduced while fixing the above issue. Finished transfers were not acknowledged properly. Was fixed Sat evening.
    • No jobs in IT cloud. Seems to be a brokering issue between evgen/simul and pile.

  • CMS reports (raw view) -
    • This week is CMS and therefore almost for sure nobody can join the call
    • New xrootd re-director for Tier-0 name space in EOS seems to need a port opening in the fire wall, GGUS:113032 (at the very end)
      • Not clear why this causes trouble with files out side of the Tier-0 name space
    • Please send a mail to Christoph, if there is the need to followup something

  • ALICE -
    • mostly high activity
    • KIT: team ticket GGUS:113438 opened on Sat because of network issues (solved)

  • Operations dominated by MC jobs and user analysis
  • T0:
  • T1

Sites / Services round table:

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

  • CERN batch and grid services:
    • FTS fts3.cern.ch upgrade fts-server 3.2.32 -> 3.2.33 08:00 UTC Wednesday 6th May. A 2 or 3 minute downtime. This is the version running on the pilot for sometime.
  • CERN storage services:
  • Databases:
  • GGUS:
    • Network issues at KIT on Monday at 14:30. The network experts are looking into it
  • Grid Monitoring:
  • MW Officer:

AOB:

Thursday

Attendance:

  • local:
  • remote:

Experiments round table:

  • ALICE -

Sites / Services round table:

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

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

AOB:

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Topic revision: r7 - 2015-05-04 - PabloSaiz
 
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