7 Replies Latest reply on Oct 2, 2012 8:56 AM by Justin Bertram

    jboss 7.1 in domain mode clustered but not queues

    poidl Newbie

      hello.

       

      this is my first thread here and i use clustering with jboss for first time . so please sorry, if i did some mistakes.

       

      so now to my problem.

       

      I set up jboss 7.1.1 on two servers. i configured one server as domain controller, so i did changes in domain.xml. I also read and followed constructions from https://docs.jboss.org/author/display/AS71/AS7+Cluster+Howto. With this informations i could startet the domain server and the other server as slave. Both servers start up in cluster mode and deploying application succedded and workes fine. But my jms queues are not clustered, because, if i switch off one server while a message is in a queue, the other server do not fetch the message from this queue. The other server only works with its own deployed queues.

       

      if i look for udp ports i see, that the messaging multicast port is up.

       

      UDP_Screenshot.png

      can someone help me with this problem? Are there domain configurations available, with which queue clustering in domain mode is working?

      i attached my domain.xml.

       

      thx for your help

       

      Chris

        • 1. Re: jboss 7.1 in domain mode clustered but not queues
          Justin Bertram Master

          My guess is that you are not properly configured for high-availability of messages which (at this point) requires a shared journal between the master and slave nodes.  Read the HornetQ documentation on clustering to understand better.

          • 2. Re: jboss 7.1 in domain mode clustered but not queues
            poidl Newbie

            thx for your answere. now i switched from udp to static connections and configured shared-store.

            in tried out this in both modes. domain and standalone and in both modes, i have the same problem. master server is running correct. slave server starts up with problems at messaging server.

             

            • in domain mode, the slave server cant't start its third-server(full-ha profile), because of "Waiting to obtain live lock". With this message the slave-server will not startup correctly. but i get no error. In Domain-Console it shows server-one and server-two on, but server-three is not running.

             

            • in standalone mode, the backup server (backup=true) startsup with following exception

             

            11:56:16,473 ERROR [org.hornetq.ra.inflow.HornetQActivation] (default-threads - 2) Unable to reconnect org.hornetq.ra.inflow.HornetQActivationSpec(ra=org.hornetq.ra.HornetQResourceAdapter@1c39cc63 destination=queue/printQueue destinationType=javax.jms.Queue ack=Auto-acknowledge durable=false clientID=null user=null maxSession=15): HornetQException[errorCode=2 message=Cannot connect to server(s). Tried with all available servers.]

                at org.hornetq.core.client.impl.ServerLocatorImpl.createSessionFactory(ServerLocatorImpl.java:774) [hornetq-core-2.2.19.Final-build2.jar:2.2.19.FINAL_build2 (HQ_2_2_19_FINAL_build2, 122)]

                at org.hornetq.ra.inflow.HornetQActivation.setup(HornetQActivation.java:314) [hornetq-ra-2.2.19.Final-build2.jar:2.2.19.FINAL_build2 (HQ_2_2_19_FINAL_build2, 122)]

                at org.hornetq.ra.inflow.HornetQActivation.handleFailure(HornetQActivation.java:592) [hornetq-ra-2.2.19.Final-build2.jar:2.2.19.FINAL_build2 (HQ_2_2_19_FINAL_build2, 122)]

                at org.hornetq.ra.inflow.HornetQActivation$SetupActivation.run(HornetQActivation.java:635) [hornetq-ra-2.2.19.Final-build2.jar:2.2.19.FINAL_build2 (HQ_2_2_19_FINAL_build2, 122)]

                at org.jboss.jca.core.workmanager.WorkWrapper.run(WorkWrapper.java:221)

                at org.jboss.threads.SimpleDirectExecutor.execute(SimpleDirectExecutor.java:33)

                at org.jboss.threads.QueueExecutor.runTask(QueueExecutor.java:801)

                at org.jboss.threads.QueueExecutor.access$100(QueueExecutor.java:45)

                at org.jboss.threads.QueueExecutor$Worker.run(QueueExecutor.java:821)

                at java.lang.Thread.run(Thread.java:662) [rt.jar:1.6.0_32]

                at org.jboss.threads.JBossThread.run(JBossThread.java:122)

             

            based on this error i added in every MDB:

                    @ActivationConfigProperty(propertyName = "reconnectAttempts", propertyValue ="-1"),

                    @ActivationConfigProperty(propertyName = "setupAttempts", propertyValue ="-1")

            But this properties changed nothing.

             

            so in summary,

            -domain mode starts cluster but slave server has problems with messaging server

            -standalone mode starts cluster but throws exception on backup server while deploying application (.ear).

            in attachements i added my subsystems for messaging.

             

            can you help me with this problem?

             

            thx

            Chris

            • 3. Re: jboss 7.1 in domain mode clustered but not queues
              Justin Bertram Master

              Any MDB deployed on an instance of AS7 where the HornetQ server is in backup mode will not be able to connect to any local destination precisely because all the destinations will not have been deployed since the HornetQ server is in backup mode.

              • 4. Re: jboss 7.1 in domain mode clustered but not queues
                poidl Newbie

                This means it is not possible to listen on one Queue (shared store) with more than one server(domain or standalone mode)? if not, there is no advantage for performance in cluster mode?

                 

                if not, is there a possibility for queing over a database system instead of a filesystem? I mean, is it possible to configure an other framework for queing which works with a database? like it was with jboss 5.

                 

                thx

                Chris

                • 5. Re: jboss 7.1 in domain mode clustered but not queues
                  Justin Bertram Master

                  I think you're clonflating HA functionality (i.e. the messages on a node are still available even if that node crashes) with general clustering which can provide a performance boost via load-balancing (both client-side and server-side).  I recommend you read the HornetQ chapters on these subjects (i.e. 38 and 39) to get a clearer picture about how they work. 

                   

                  Regarding JDBC persistence, there is no plan to implement any such mechanism.  The upcoming "replication" HA mode (currently available in 2.3.0.Alpha) should fit use-cases where a shared-store is not desirable.

                  • 6. Re: jboss 7.1 in domain mode clustered but not queues
                    poidl Newbie

                    are there any example configurations for server-side load balancing with no UDP communication?

                     

                    thx

                    • 7. Re: jboss 7.1 in domain mode clustered but not queues
                      Justin Bertram Master

                      Download HornetQ and check out <HORNETQ_HOME>/examples/jms/clustered-static-discovery.