Dan Rush [http://community.jboss.org/people/mrfixit440] created the discussion "Jboss 5.1.0.GA JMS topic acts like a queue" To view the discussion, visit: http://community.jboss.org/message/609528#609528 -------------------------------------------------------------- I've been porting my apps from JBoss 4.2.3.GA to JBoss 5.1.0.GA and I'm down to my last error (hopefully). I have a JMS topic configured that works just fine in 4.2.3.GA.  I have multiple subscribers and only one of my subscribers will receive the published message. So it acts like a queue.  Here is my configuration:   <mbean code="org.jboss.jms.server.destination.TopicService"       name="jboss.messaging.destination:service=Topic,name=MyTopic"       xmbean-dd="xmdesc/Topic-xmbean.xml">       <depends optional-attribute-name="ServerPeer">jboss.messaging:service=ServerPeer</depends>       <depends>jboss.messaging:service=PostOffice</depends>       <attribute name="JNDIName">jms/MyTopic</attribute>    </mbean> Here's jboss log on startup:  15:10:30,217 INFO  [ConnectionFactory] org.jboss.jms.server.connectionfactory.ConnectionFactory@1b4e5b0 started 15:10:30,217 INFO  [TopicService] Topic[jms/MyTopic] started, fullSize=200000, pageSize=2000, downCacheSize=2000 Here's my client code that works great as a standalone java program connecting to jboss, but I have it in a war file now:             InitialContext iniCtx = null;             if(m_isStandAlone) {                 iniCtx = new InitialContext();             } else {                 iniCtx = JMSUtil.getInitialContext(APPSERVER_INITIAL_CONTEXT_FACTORY, m_providerUrl, m_username, m_password, null);             }             TopicConnectionFactory topicFactory = (TopicConnectionFactory)iniCtx.lookup(m_connectionFactory);             Topic topic = (Topic)iniCtx.lookup(m_destinationName);             topicConnection = topicFactory.createTopicConnection();             topicSession = topicConnection.createTopicSession(false, TopicSession.AUTO_ACKNOWLEDGE);             logger.info("Subscribing to topic: " + topic.getTopicName());             if(durable){                 subscriber = topicSession.createDurableSubscriber(topic, "testsub", null, false);             }             else{                 subscriber = topicSession.createSubscriber(topic);             }             subscriber.setMessageListener(this);             topicConnection.start();             logger.info("JMSSubscriber initialized."); Here's my client log showing that clients are connecting and ready to receive: Jun 9, 2011 3:15:09 PM JMSSubscriber init INFO: Subscribing to topic: MyTopic INFO: JMSSubscriber initialized. Not sure what else to try.  Only one of my subscribers will receive the published message.  All the rest never receive anything.  Help would be greatly appreciated. Thanks. -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/609528#609528] Start a new discussion in JBoss Messaging at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]