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From "Dan Tran (JIRA)" <j...@apache.org>
Subject [jira] Commented: (AMQ-1375) ActiveMQ hangs, cannot send message/create temp queue
Date Thu, 02 Jul 2009 01:20:07 GMT

    [ https://issues.apache.org/activemq/browse/AMQ-1375?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=52625#action_52625
] 

Dan Tran commented on AMQ-1375:
-------------------------------

I have a similiar case with embedded AMQ 5.2 + tomcat 6.x + java 6, where my embedded jms
client ( via vm:// ...) send operation hangs when the broker is heavily processing messages
from an another external jms client ( via tcp:// ) . We are using non persistent messages.
 Any advice to work around this issue is greatly appreciated.

here is the stack trace

Daemon Thread [Thread-14] (Suspended)	
	Unsafe.park(boolean, long) line: not available [native method]	
	LockSupport.park(Object) line: 158	
	AbstractQueuedSynchronizer$ConditionObject.await() line: 1925	
	ArrayBlockingQueue<E>.take() line: 317	
	FutureResponse.getResult() line: 40	
	ResponseCorrelator.request(Object) line: 80	
	ActiveMQConnection.syncSendPacket(Command) line: 1233	
	ActiveMQSession.send(ActiveMQMessageProducer, ActiveMQDestination, Message, int, int, long,
MemoryUsage, int) line: 1659	
	ActiveMQMessageProducer.send(Destination, Message, int, int, long) line: 227	
	ActiveMQMessageProducer(ActiveMQMessageProducerSupport).send(Message) line: 241	
	JmsTemplate.doSend(MessageProducer, Message) line: 597	
	JmsTemplate.doSend(Session, Destination, MessageCreator) line: 574	
	JmsTemplate$4.doInJms(Session) line: 551	
	JmsTemplate.execute(SessionCallback, boolean) line: 471	
	JmsTemplate.send(String, MessageCreator) line: 548	
	OracleSGAAgentProxy(AbstractAsyncAgentProxy).sendMessageToAgent(String) line: 92	
	OracleSGAAgentProxy(AbstractAsyncAgentProxy).pingAgent() line: 147	
	OracleSGAAgentProxy(AbstractAsyncAgentProxy).run() line: 173	
	Thread.run() line: 619	


> ActiveMQ hangs, cannot send message/create temp queue
> -----------------------------------------------------
>
>                 Key: AMQ-1375
>                 URL: https://issues.apache.org/activemq/browse/AMQ-1375
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: Broker
>    Affects Versions: 4.1.1
>         Environment: Running an embedded broker in standalone java application based
on Spring framework on Solaris 10 with JVM version 1.5.0_09. Using non persisten messaging
with 512MB limit in memory manager of broker.
>            Reporter: Trevor Higgins
>             Fix For: 5.4.0
>
>         Attachments: jstack_basic.txt
>
>
> We are experiencing severe issues with AMQ blocking sending. We have a basic setup with
one standalone server process and many clients. Each client has its own temp queue for P2P
request/response type communication. There is also a number of topics broadcast to all clients.
Our clients receive messages in an MDP fashion with each message being processed on a single
threaded executor by an anonymous Runnable as follows:
> {code}
> public void onMessage(final Message message) {
> 	threadRunner.submit(new Runnable() {		
> 		public void run() {
> 			try {				
> 				for(final IReceiverListener listener : listeners) {
> 					listener.onReceive(message);
> 				}
> 			} catch (Throwable e) {
> 				e.printStackTrace();
> 			}
> 		}
> 	});
> }
> {code}
> Every so often, the entire AMQ blocks and we cannot send anything anymore. We also cannot
create any new temp queues, which means no new client can start up (each creates its own temp
queue during startup). Connections are be created and from that a session, but the session.createTemporaryQueue()
call alwaysy hangs. This is similar to AMQ-1278, but as we are cannot use 5.0 until stable
release.......
> Here is the stack of the client trying to create a temp queue
> at Object.wait(long, int) line: not available [native method]
> at CondVar(Object).wait() line: 199
> at CondVar.await() line: 75
> at ArrayBlockingQueue.take() line: 318
> at FutureResponse.getResult() line: 42
> at ResponseCorrelator.request(Object) line: 75
> at ActiveMQConnection.syncSendPacket(Command) line: 1175
> at ActiveMQConnection.createTempDestination(boolean) line: 1594
> at ActiveMQSession.createTemporaryQueue() line: 1134
> at TempDestinationResolver.resolveDestinationName(Session, String, boolean) line: 16
> at SimpleMessageListenerContainer(JmsDestinationAccessor).resolveDestinationName(Session,
String) line: 100
> at SimpleMessageListenerContainer.createListenerConsumer(Session) line: 188
> at SimpleMessageListenerContainer.doInitialize() line: 171
> at SimpleMessageListenerContainer(AbstractJmsListeningContainer).initialize() line: 160
> at SimpleMessageListenerContainer(AbstractJmsListeningContainer).afterPropertiesSet()
line: 133
> at DefaultListableBeanFactory(AbstractAutowireCapableBeanFactory).invokeInitMethods(String,
Object, RootBeanDefinition) line: 1202
> at DefaultListableBeanFactory(AbstractAutowireCapableBeanFactory).initializeBean(String,
Object, RootBeanDefinition) line: 1172
> at DefaultListableBeanFactory(AbstractAutowireCapableBeanFactory).createBean(String,
RootBeanDefinition, Object[]) line: 428
> at AbstractBeanFactory$1.getObject() line: 251
> at DefaultListableBeanFactory(DefaultSingletonBeanRegistry).getSingleton(String, ObjectFactory)
line: 156
> at DefaultListableBeanFactory(AbstractBeanFactory).getBean(String, Class, Object[]) line:
248
> at DefaultListableBeanFactory(AbstractBeanFactory).getBean(String) line: 160
> at DefaultListableBeanFactory.preInstantiateSingletons() line: 287
> at FileSystemXmlApplicationContext(AbstractApplicationContext).refresh() line: 352
> at FileSystemXmlApplicationContext.<init>(String[], ApplicationContext) line: 93
> at FileSystemXmlApplicationContext.<init>(String[]) line: 77
> at FileSystemXmlApplicationContext.<init>(String) line: 67
> at BindingService.<init>() line: 65
> at BindingService.getInstance() line: 43
> at TopologyServiceFactory.initialize() line: 123
> at TopologyManager.initialize() line: 31
> at TopologyView$3.run(IProgressMonitor) line: 159
> at Worker.run() line: 55
> I have attached a JStack of the server  process with embedded broker also.
> From our client side the only thing I am dubious about is the retention of the reference
to the message until the anonymous Runnable is executed. Could this cause issues is for some
reason the execution blocked, will the messages build up in AMQ?
> From looking at JConsole for the broker, the memoryPercentageUsed is zero so it doesnt
appear to be a RAM issue.

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