0 Replies Latest reply on Sep 27, 2004 1:17 PM by ocasado

    MDB- BMP EBs - Deadlock issue

    ocasado Newbie

      .- I have a pool of MDBs receiving messages from a JMS Queue.
      .- Each MDB uses a Stateless Session Bean (which is the session facade for several BMP-Entity Beans) from a pool to populate info in the DB [SQL Server 2000].

      .- If I use a Singleton MDB (basically setting the size of the MDB pool to 1), everything works fine.
      .- If I use a pool of MDB I always get a Deadlock exception at DB level.

      I am not sure if the problem is in the MDB or in the Entity Beans... I have tried to use other configurations for the EBs like "Instance Per Transaction BMP EntityBean" but it still doesn't work. I have also specified read-only methods (when possible) for the EBs.

      I would appreciate any help or suggestion.

      Thanks in advance.
      Oscar