Local Queue in a cluster

Question

          Hi
          Is there any way to programmatically determine whether a queue is local to a server
          in a cluster. Like for example there are 3 server in a cluster and I have pinned
          the Queue to a server say server#3. Now I want to start some processes in that
          server which hosts the Queue - and not in any other server - like a polling program.
          So somehow that has to detect that the Queue is local to that server though the
          JNDI name is replicated in the cluster ie all members in the cluster should be
          able to see the Queue.
          thanks
          Anamitra
          

Answer 1

          You can look up the queue using createQueue() with the syntax
          "./queue-name". This looks for queue's running on the same
          server as the client's host connecton. (A client running
          on a server will host its connection on the same server
          provided the client's connection-factory contains the server
          in its target list...). This syntax is supported by 7.0,
          6.1SP3 or later, and 6.1SP2 with patch CR072612.
          You can turn off JNDI name replication for the destination.
          This feature is not exposed on the console until 8.1, but you can
          set it in the destinations config.xml via:
          JNDINameReplicated="true"
          This may not work on all versions, if this doesn't work (eg it
          generates a syntax error), contact customer support. There
          are enhancement patches...
          In WebLogic 8.1 you can query the queue object to determine
          the related mbean. Then get the parent's parent
          to determine the server-name. (see weblogic.jms.extensions.JMSHelper)
          You other versions you can get the mbeans as well. If you
          use the "local" mbean-home, it restricts the view to
          runtime mbeans that are running on the same server as
          the supplied context:
          if (useLocalMBeanHome)
          mbh = (MBeanHome)ctx.lookup(MBeanHome.LOCAL_JNDI_NAME);
          else
          mbh = (MBeanHome)ctx.lookup(MBeanHome.ADMIN_JNDI_NAME);
          Tom
          Anamitra wrote:
          > Hi
          > Is there any way to programmatically determine whether a queue is
          local to a server
          > in a cluster. Like for example there are 3 server in a cluster and I
          have pinned
          > the Queue to a server say server#3. Now I want to start some
          processes in that
          > server which hosts the Queue - and not in any other server - like a
          polling program.
          > So somehow that has to detect that the Queue is local to that server
          though the
          > JNDI name is replicated in the cluster ie all members in the cluster
          should be
          > able to see the Queue.
          >
          > thanks
          > Anamitra