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Minutes 26 January 06

  • Phone: Barbara(CNAF), Eric(FNAL), Stefan(Oxford), Gancho (ATLAS), Iris(BNL), Gordon(RAL)
  • @CERN: David Front, Marco(LHCb), Dirk(3D), Eva(3D), Ioannis(POOL), Radovan(POOL), Giacomo, Flavia

  • General points:
    • Testbed interventions during last week
      • replica database upgraded to 10gR2, CPU January patches applied
      • Kernel upgrade on the OEM and Frontier Servers machine, CPU January patches applied
    • allocated one disk server for the 3D - it will be the downstream capture database
    • Dirk's asked for 3 caches servers
      • Frontier with Tomcat and Squid
      • CMS will be taken over from the support
    • No meeting next week. See you on Monday 6 February Database Readiness Workshop
  • Roundtable Tier1 sites status
    • BNL (Iris): sporadic node reboot problems solved, now the cluster for production is stable
    • CNAF (Barbara): RAC is not stable: upgrading OS and to OCFS2. Kernel panic often - still under investigation
    • RAL (Gordon): problems using OCFS2 and Red Hat 4, Oracle has been already contacted
    • Gordon will contact Barbara, similar configuration and similar problems
    • IN2P3 (update by Dirk): 2 cluster installation ready
  • Roundtable testbed test progress
    • Birger: tests re-done, they run fine. Birger will update the table. Time for stress tests requested
    • Birger will show some slides about the results during the readiness workshop (requested by Dirk)
    • Saima (update by Eva): replication of some operations which open a big number of cursors (up to 500) cause the the apply process to abort - number of open cursor excedeed error. To be clarified together with Saima
    • Gancho (online-offline ATLAS tests): got appropieate accounts, running first tests (tables creation and data population), preparing job to introduce big load on the server
    • Stefan: exercising the load of COOL database from different locations. Dirk suggest to start the replication tests asap (contact Gordon or Eva for help)
    • Jerome and Eva are in contact for testing AMI database replication
    • Marco: no more tests so far
  • Database Services and Grid User Support
    • presentation by Flavia Donno
    • slides available on the agenda
    • Summary
      • provides one interfarce for the user and the appropiate channels to forward the problems to specific experts
      • how to contact the user whose jobs are misconfigured? people behind support lists will look at the user causing the problem,...
      • applications are not really interface: the request is forwarded to the Generic Grid experts and, in case of the applications, they forwarded the request to the special unit of the application

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Topic revision: r1 - 2006-01-27 - EvaDafonte
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