GIOD - Database Tests (I)

  • Results
    • Application is platform independent
    • Database is platform independent
    • No performance loss for remote client
    • Fastest access: objects are “indexed”
    • Slowest: using predicates

  • Developed simple scaling test application:

  • Looked at usability, efficiency and scalability while varying

    • number of objects
    • location of objects
    • object selection mechanism
    • database host platform

  • Tested creating federated database in HPSS managed storage, using an NFS export

    • Can use HPSS/NFS interface to store databases, but performance poor and timeouts a problem
  • Tested database replication from CERN to Caltech

    • Remote database replication transparent given sufficient bandwidth

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