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Minutes 5 October 06

  • Phone:
    • TRIUMF: Denise
    • GridKA: Andreas
    • FNAL: Eric, Lee
    • ATLAS: Shasha, David Front
    • CNAF: Barbara
    • NDGF: Olli
  • CERN:
    • 3D: Dirk, Zbigniew, Luis, Eva
    • LHCB: Marco
    • ATLAS: Gancho

  • Update on phase 2 site status:
    • Expected phase 2 sites to report plans and concrete schedules. Dirk will send an email to contact them again.
    • Triumf (Denise by email): hw in place, power infrastructure ongoing. Setting up shared storage. Db nodes installed: RH4 64 bits. Wiki page is already updated.
    • NDGF: hw have been ordered. Dirk proposed a video conference to help on the database setup.
    • NIKHEF: hw have been ordered.
  • LHCb and ATLAS COOL tests:
    • LHCb(Marco): Streams setup from online to CERN and from CERN to Tier1 sites ready. First test was successfull: 1 condition per second during the whole night (this is what is expected for LHCb)
    • ATLAS(Gancho):
      • delete operations using rowid (Florbela code) non scalable using Streams, rowid cannot be translated easily on destination. Primary key used instead shows good results.
      • materialized views: used on the source database. They are not replicated, transactions must be filtered.
      • delete one error from the exception queue takes long time.
      • waiting for Taiwan to join: they have problems with OCFS. Dirk proposed Barbara to be in contact with them because at CERN it is not used.
      • BNL network problems to be analyzed by the network people.
  • CMS Frontier tests:
    • details on agenda
    • Luis:
      • queries from David Front for COOL compresion rate is too high - unrealistic
      • zip leves from 1 to 9: difference is not valuable. CPU consumption is similar (server)
      • test from FNAL: numbers are similar to Tier0 - dependant on the network
      • Squid + Gigabit at FNAL (prepared by Lee): available for tests
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Topic revision: r2 - 2006-10-13 - EvaDafonte
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