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From Gary Tully <gary.tu...@gmail.com>
Subject Re: ClassCastException having relation to expired messages
Date Tue, 07 Jul 2009 09:32:52 GMT
would it be possible to provide a junit test case that demonstrates this
behavior? I wonder does the problem persist with the latest 5.3-SNAPSHOT?

Trunk has a resolution to
https://issues.apache.org/activemq/browse/AMQ-1112that provides a
periodic message expiry task. That should help but it may be
that there still remains some assumptions about the type of message.
A junit test case would help lots.



2009/7/7 sic <sic_1234@naver.com>

>
> While expired messages remain on queue, server cannot be re-started with
> ClassCastException until I delete persistent file(e.g. file :
> data\kr-store\data\hash-index-queue-data_queue#3a#2f#2fTEST.QUEUE,
> QueueName
> : TEST.QUEUE) of the queue which has expired messages
>
> Yet, this way has disadvantage that all of messages on specified queue have
> been purged regardless of expiration.
>
> Does anyone have other ways?
>
>
> sic wrote:
> >
> > 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
> >
> > 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
> >
> > It's in Windows XP.
> >
> > Regards
> >
>
> --
> View this message in context:
> http://www.nabble.com/ClassCastException-having-relation-to-expired-messages-tp24287023p24369696.html
> Sent from the ActiveMQ - User mailing list archive at Nabble.com.
>
>


-- 
http://blog.garytully.com

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