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From "Gary Tully (JIRA)" <j...@apache.org>
Subject [jira] Created: (AMQ-2322) ClassCastException having relation to recovery of expired messages and vmQueueCursor pendingQueuePolicy
Date Thu, 09 Jul 2009 16:25:07 GMT
ClassCastException having relation to recovery of expired messages and vmQueueCursor pendingQueuePolicy
-------------------------------------------------------------------------------------------------------

                 Key: AMQ-2322
                 URL: https://issues.apache.org/activemq/browse/AMQ-2322
             Project: ActiveMQ
          Issue Type: Bug
          Components: Broker
    Affects Versions: 5.2.0
         Environment: all
            Reporter: Gary Tully
            Assignee: Gary Tully
             Fix For: 5.3.0


from: http://www.nabble.com/ClassCastException-having-relation-to-expired-messages-tp24287023p24287023.html

While testing ActiveMQ5.2.0, I have a question about expired message.

Note that testing messages are Persistent and using a queue, set message
expiration time to 10 seconds. configurations are same except destination
policy(using a vm queue cursor) as below
<destinationPolicy>
       <policyMap>
               <policyEntries>
                       <policyEntry queue=">" memoryLimit="5mb">
                               <dispatchPolicy>
                                       <strictOrderDispatchPolicy />
                               </dispatchPolicy>
                               <deadLetterStrategy>
                                       <individualDeadLetterStrategy queuePrefix="DLQ."/>
                               </deadLetterStrategy>
                               <pendingQueuePolicy>
                                       <vmQueueCursor />
                               </pendingQueuePolicy>
                       </policyEntry>
               </policyEntries>
       </policyMap>
</destinationPolicy>
Additionally, it turns out that the activemq broker actually does not
proactively purge expired messages from queues. so we set
a thread that periodically cleared my queues of expired messages by help of
this forum's advisor.
We suppose that a server is stopped unexpectedly when expired message leaves
on queue without disposed by the thread
After recovering a server, we will expect that remained messages including
both normal and expired message are loaded normally
However server stopped abnormally and some error occured while starting
ActiveMQ. Errors are like that
{code}
2009-07-01 17:13:45,125 [main           ] INFO  BrokerService
- For help or more information please see: http://activemq.apache.org/
2009-07-01 17:13:45,421 [main           ] INFO  KahaStore
- Kaha Store using data directory
D:\apache\apache-activemq-5.2.0\binary\bin\..\data\kr-store\data
2009-07-01 17:13:45,796 [main           ] ERROR BrokerService
- Failed to start ActiveMQ JMS Message Broker. Reason:
java.lang.ClassCastException:
org.apache.activemq.command.ActiveMQObjectMessage
java.lang.ClassCastException:
org.apache.activemq.command.ActiveMQObjectMessage
       at org.apache.activemq.broker.region.Queue.messageExpired(Queue.java:1114)
       at org.apache.activemq.broker.region.Queue.messageExpired(Queue.java:1106)
       at org.apache.activemq.broker.region.Queue$5.recoverMessage(Queue.java:173)
       at
org.apache.activemq.store.amq.RecoveryListenerAdapter.recoverMessage(RecoveryListenerAdapter.java:45)
       at
org.apache.activemq.store.amq.RecoveryListenerAdapter.recoverMessageReference(RecoveryListenerAdapter.java:56)
       at
org.apache.activemq.store.kahadaptor.KahaReferenceStore.recoverReference(KahaReferenceStore.java:82)
       at
org.apache.activemq.store.kahadaptor.KahaReferenceStore.recover(KahaReferenceStore.java:93)
       at
org.apache.activemq.store.amq.AMQMessageStore.recover(AMQMessageStore.java:481)
       at org.apache.activemq.broker.region.Queue.initialize(Queue.java:167)
       at
org.apache.activemq.broker.region.DestinationFactoryImpl.createDestination(DestinationFactoryImpl.java:83)
       at
org.apache.activemq.broker.region.AbstractRegion.createDestination(AbstractRegion.java:434)
       at
org.apache.activemq.broker.jmx.ManagedQueueRegion.createDestination(ManagedQueueRegion.java:56)
       at
org.apache.activemq.broker.region.AbstractRegion.addDestination(AbstractRegion.java:120)
       at
org.apache.activemq.broker.region.RegionBroker.addDestination(RegionBroker.java:261)
       at
org.apache.activemq.broker.BrokerFilter.addDestination(BrokerFilter.java:142)
       at
org.apache.activemq.broker.BrokerFilter.addDestination(BrokerFilter.java:142)
       at
org.apache.activemq.advisory.AdvisoryBroker.addDestination(AdvisoryBroker.java:147)
       at
org.apache.activemq.broker.BrokerFilter.addDestination(BrokerFilter.java:142)
       at
org.apache.activemq.broker.MutableBrokerFilter.addDestination(MutableBrokerFilter.java:149)
       at
org.apache.activemq.broker.region.AbstractRegion.start(AbstractRegion.java:94)
       at
org.apache.activemq.broker.region.RegionBroker.start(RegionBroker.java:176)
       at
org.apache.activemq.broker.jmx.ManagedRegionBroker.start(ManagedRegionBroker.java:103)
       at
org.apache.activemq.broker.TransactionBroker.start(TransactionBroker.java:112)
       at org.apache.activemq.broker.BrokerFilter.start(BrokerFilter.java:154)
       at org.apache.activemq.broker.BrokerFilter.start(BrokerFilter.java:154)
       at
org.apache.activemq.broker.MutableBrokerFilter.start(MutableBrokerFilter.java:161)
       at org.apache.activemq.broker.BrokerService.start(BrokerService.java:468)
       at
org.apache.activemq.xbean.XBeanBrokerService.afterPropertiesSet(XBeanBrokerService.java:52)
       at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1368)
       at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1334)
       at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:473)
       at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
       at java.security.AccessController.doPrivileged(Native Method)
       at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)
       at
org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264)
       at
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:221)
       at
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261)
       at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)
       at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)
       at
org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:429)
       at
org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:729)
       at
org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:381)
       at
org.apache.xbean.spring.context.ResourceXmlApplicationContext.<init>(ResourceXmlApplicationContext.java:64)
       at
org.apache.xbean.spring.context.ResourceXmlApplicationContext.<init>(ResourceXmlApplicationContext.java:52)
       at
org.apache.activemq.xbean.XBeanBrokerFactory.createApplicationContext(XBeanBrokerFactory.java:96)
       at
org.apache.activemq.xbean.XBeanBrokerFactory.createBroker(XBeanBrokerFactory.java:52)
       at
org.apache.activemq.broker.BrokerFactory.createBroker(BrokerFactory.java:71)
       at
org.apache.activemq.broker.BrokerFactory.createBroker(BrokerFactory.java:54)
       at
org.apache.activemq.console.command.StartCommand.startBroker(StartCommand.java:115)
       at
org.apache.activemq.console.command.StartCommand.runTask(StartCommand.java:74)
       at
org.apache.activemq.console.command.AbstractCommand.execute(AbstractCommand.java:57)
       at
org.apache.activemq.console.command.ShellCommand.runTask(ShellCommand.java:129)
       at
org.apache.activemq.console.command.AbstractCommand.execute(AbstractCommand.java:57)
       at
org.apache.activemq.console.command.ShellCommand.main(ShellCommand.java:79)
       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
       at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
       at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
       at java.lang.reflect.Method.invoke(Method.java:585)
       at org.apache.activemq.console.Main.runTaskClass(Main.java:225)
       at org.apache.activemq.console.Main.main(Main.java:106)
2009-07-01 17:13:45,812 [main           ] INFO  BrokerService
- ActiveMQ Message Broker (localhost, null) is shutting down
2009-07-01 17:13:45,828 [main           ] INFO  NetworkConnector
- Network Connector default-nc Stopped
{code}



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