Here is my ActiveMQ.xml:


<beans
  xmlns="http://www.springframework.org/schema/beans";
  xmlns:amq="http://activemq.apache.org/schema/core";
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
  xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
  http://activemq.apache.org/schema/core
http://activemq.apache.org/schema/core/activemq-core.xsd";>

    
    <bean
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
        <property name="locations">
            <value>file:${activemq.conf}/credentials.properties</value>
        </property>
    </bean>

    
    <broker xmlns="http://activemq.apache.org/schema/core";
brokerName="localhost" dataDirectory="${activemq.data}">

        

        <destinationPolicy>
            <policyMap>
              <policyEntries>
                <policyEntry topic=">" producerFlowControl="true">
                    
                  <pendingMessageLimitStrategy>
                    <constantPendingMessageLimitStrategy limit="1000"/>
                  </pendingMessageLimitStrategy>
                </policyEntry>
                <policyEntry queue=">" producerFlowControl="false"
memoryLimit="1mb">
                  
                </policyEntry>
              </policyEntries>
            </policyMap>
        </destinationPolicy>


        
        <managementContext>
            <managementContext createConnector="false"/>
        </managementContext>

        
        <persistenceAdapter>
            <kahaDB directory="${activemq.data}/kahadb"/>
        </persistenceAdapter>


          
          <systemUsage>
            <systemUsage>
                <memoryUsage>
                    <memoryUsage limit="64 mb"/>
                </memoryUsage>
                <storeUsage>
                    <storeUsage limit="100 gb"/>
                </storeUsage>
                <tempUsage>
                    <tempUsage limit="50 gb"/>
                </tempUsage>
            </systemUsage>
        </systemUsage>

        
        <transportConnectors>
            
            <transportConnector name="openwire"
uri="tcp://0.0.0.0:25055?maximumConnections=1000&amp;wireformat.maxFrameSize=104857600"/>
            <transportConnector name="amqp"
uri="amqp://0.0.0.0:5672?maximumConnections=1000&amp;wireformat.maxFrameSize=104857600"/>
        </transportConnectors>

        
        <shutdownHooks>
            <bean xmlns="http://www.springframework.org/schema/beans";
class="org.apache.activemq.hooks.SpringContextHook" />
        </shutdownHooks>

    </broker>

    
    <import resource="jetty.xml"/>

</beans>


I have already included the producer and consumer uri flags I am using. I am
using the async message listeners if that has anything to do with it.

I have tried deleting and re-creating the Queue.

My producer set up code looks like:

                        Uri connectUri = new
Uri(String.Format("activemq:tcp://{0}:{1}?wireFormat.tightEncodingEnabled=true&jms.useAsyncSend=true&jms.useCompression=true",
server, port));

                        if ((object)connectUri == null)
                                throw new ArgumentNullException("connectUri");

                        IConnectionFactory factory = new 
NMSConnectionFactory(connectUri);

                        if ((object)factory == null)
                                throw new Exception("Unable to create 
connection factory.");

                        _connection = factory.CreateConnection();

                        if ((object)_connection == null)
                                throw new Exception("Unable to create 
connection.");

                        _session = _connection.CreateSession();

                        if ((object)_session == null)
                                throw new Exception("Unable to create 
session.");

                        string[] arrQueues = Enum.GetNames(typeof(Queue));

                        if (arrQueues.Length > 0)
                        {
                                _destinations = new 
IDestination[arrQueues.Length];

                                for (int nIndex = 0; nIndex < arrQueues.Length; 
nIndex++)
                                {
                                        _destinations[nIndex] = 
SessionUtil.GetDestination(_session,
String.Format("queue://{0}", arrQueues[nIndex]));

                                        if ((object)_destinations[nIndex] == 
null)
                                                throw new Exception("Unable to 
get destination.");
                                }

                                _producers = new 
IMessageProducer[arrQueues.Length];
                        }

                        _tempQueue = _session.CreateTemporaryQueue();

                        if ((object)_tempQueue == null)
                                throw new Exception("Unable to create response 
queue.");

                        _consumer = _session.CreateConsumer(_tempQueue);

                        if ((object)_consumer == null)
                                throw new Exception("Unable to create 
consumer.");
                        else
                                _consumer.Listener += consumer_Listener;

                        _connection.Start();


So its just newing up the standard objects and keeping them standard. I
create a single temporary queue per producer to get responses from the
clients.

Creating a message is:

                        Guid guid = Guid.NewGuid();

                        if ((object)payload == null)
                                throw new ArgumentNullException("payload");

                        IMessageProducer producer = _producers[(int)queue];

                        if ((object)producer == null)
                        {
                                _producers[(int)queue] =
_session.CreateProducer(_destinations[(int)queue]);

                                if ((object)_producers[(int)queue] == null)
                                        throw new Exception("Unable to create 
producer.");

                                producer = _producers[(int)queue];
                        }

                        IBytesMessage message =
_session.CreateBytesMessage(Util.ObjectToByteArray(payload));

                        message.NMSCorrelationID = guid.ToString();
                        message.NMSReplyTo = _tempQueue;

                        return new ActiveMQMessage(null, producer, null, 
message);


The consumer set up is:

                        Uri connectUri = new
Uri(String.Format("activemq:tcp://{0}:{1}?wireFormat.tightEncodingEnabled=true&nms.PrefetchPolicy.QueuePrefetch=1",
_strServer, _nPort));

                        if ((object)connectUri == null)
                                throw new ArgumentNullException("connectUri");

                        IConnectionFactory factory = new 
NMSConnectionFactory(connectUri);

                        using (IConnection connection = 
factory.CreateConnection())
                        {
                                using (ISession session = 
connection.CreateSession())
                                {
                                        IDestination destination = 
SessionUtil.GetDestination(session,
String.Format("queue://{0}", queue.ToString()));

                                        using (IMessageConsumer consumer = 
session.CreateConsumer(destination))
                                        {
                                                MessageListener handler = (x) 
=> { consumer_Listener(session, x); };
                                                consumer.Listener += handler;
                                                connection.Start();
                                                
cancellationToken.WaitHandle.WaitOne();
                                                consumer.Listener -= handler;
                                        }
                                }
                        }

Let me know if you want to see any additional code :)




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