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From SledgeHammer <gro...@firstam.com>
Subject Messages Stuck In Queue
Date Mon, 12 Aug 2013 17:46:31 GMT
We are having issues with messages getting stuck in the queue.

OS: Windows 2008 Server 64-bit
ApacheMQ: 5.8.0 64-bit
Connection String:
failover:(tcp://{0}:{1})?initialReconnectDelay=3500&wireFormat.tightEncodingEnabled=true&nms.PrefetchPolicy.QueuePrefetch=1
java.exe process memory usage gets to about 1.2GB

Scenario:

Producer creates 2 queues upon startup (send queue & recv queue)
Consumer watches advisory queue and listens to all send queues (round robin)
Consumer loops through queues and calls IMessageConsumer.ReceiveNoWait() and
checks != null

The producer submits 3000 (CreateBytesMessage) messages or so using:

message.Producer.Send(message.Message, MsgDeliveryMode.NonPersistent,
MsgPriority.Normal, _ttl);

_ttl is 0:0:0

we have 400 consumers and it takes a consumer about 10 seconds to process a
message
typically about 20 - 30 messages get stuck in the queue.

Config file:



<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}"
schedulePeriodForDestinationPurge="5000">

        

        <destinationPolicy>
            <policyMap>
              <policyEntries>
                <policyEntry topic=">" producerFlowControl="true">
                    
                  <pendingMessageLimitStrategy>
                    <constantPendingMessageLimitStrategy limit="1000"/>
                  </pendingMessageLimitStrategy>
                </policyEntry>
                <policyEntry queue=">" producerFlowControl="false"
gcInactiveDestinations="true" inactiveTimoutBeforeGC="5000">
                  
                </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>









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