0 Replies Latest reply on Apr 1, 2004 7:31 AM by morenito9000

    Very seriuos performance problems

    morenito9000 Newbie

      Hi all,
      I have very serious problems of performance
      in the following scenario:

      Client -> Business Delegate -> Stateless Session Bean -> DAO -> DB

      Session Beans are insides a JBoss Application Server.
      JBoss is running on a i386/Linux machine with only
      256 Mb of Ram.

      When the client ask a large amount of data JBoss
      isn't able to answer and I get, server side, an
      OutOfMemory Exception.

      I tried to run JBoss with -Xms and -Xmx options
      but situation changes only a little.

      The same problem happens client-side because
      my client has got only 64 or 128 Mb of Ram.

      In this moment I retrieve all data in a big Vector
      of serialized objects.

      The question is:

      Do I need to split my select in N selects, retrieving
      data in blocks ? (I'm afraid about increasing the number of remote call from client to server (now I have only
      one remote call)

      Isn't there any other (not hardware) solution ?


      Many thanks in advance,
      Moreno