1 Reply Latest reply on Dec 7, 2010 9:45 PM by Clebert Suconic

    duplicate detection + redistribution

    Steven Landers Newbie

      Hi Guys-

       

      I was hoping someone might have an idea for how to handle duplicate detection when working with redistribution.  Currently, it's throwing out messages.

       

      Here's what we have:

      -HornetQ 2.1.2 Final

      -JBoss5.1

      -2 HornetQ Nodes, node A and B

      -HornetQ is configured using a TCP cluster using statically-assigned nodes.

      -HornetQ is configured to redistribute messages between A and B when one has consumers.

      -The client is accessing these nodes via HA-JNDI (server1:port,server2:port).

       

      Here's the issue:

      1) I put 1000 messages on Node A

      2) I restart Node A's jboss (at this point, all consumers connect to Node B via HA-JNDI)

      3) All messages are redistributed to Node B

      4) I restart Node B's jboss (at this point, all consumers connect to Node A via HA-JNDI)

      5) All messages are redistributed to Node A

      6) Node A recognizes these messages as duplicates and discards.

       

      If I do NOT enable duplication detection, then I will occasionally get 1 or 2 messages delivered twice.  If I DO enable duplication detection, then the 'fail back' throws away messages.

       

      It's not that I think this is a bug, but I would like to know if there's something I should try differently.

       

      Thanks,

      Steven