Hello All, I am trying to build a MDB based recv. application that will process messages delivered by AMQ RA.
ENVIRONMENT Windows XP JDK 1.6.0_01 ActiveMQ 4.1.1 and the the RA provided by the dist. Geronimo1.1.1 MySQL 5x I have set the "maxSessions" to 29 and "maxMessagesPerSession" to 900 on the ActivationSpec. for the MDB Scenario: I send a bunch of messages while the EAR with the MDB is not running. After the messages have been sent (say 1000 messages) I start the EAR application. The EAR application deadlocks after processing 29 messages. The connector Thread Pool is configured with a size of 30 threads and the property "waitWhenBlocked" is set to "true". Ofcourse this WorkManager thread pool is provided by Geronimo. After looking at the threads from JConsole i saw following stack trace(s) for Connector Threads which are stuck. The first connector thread pool thread has following stack trace. Name: ConnectorThreadPool 0 Stack trace: java.lang.Object.wait(Native Method) java.lang.Object.wait(Object.java:485) edu.emory.mathcs.backport.java.util.concurrent.locks.CondVar.await(CondVar.java:75) edu.emory.mathcs.backport.java.util.concurrent.ArrayBlockingQueue.take(ArrayBlockingQueue.java:318) org.apache.activemq.transport.FutureResponse.getResult(FutureResponse.java:42) org.apache.activemq.transport.ResponseCorrelator.request(ResponseCorrelator.java:75) org.apache.activemq.ActiveMQConnection.syncSendPacket(ActiveMQConnection.java:1175) org.apache.activemq.ActiveMQConnectionConsumer.<init>(ActiveMQConnectionConsumer.java:86) org.apache.activemq.ActiveMQConnection.createConnectionConsumer(ActiveMQConnection.java:1085) org.apache.activemq.ra.ActiveMQEndpointWorker$1.run(ActiveMQEndpointWorker.java:164) - locked [EMAIL PROTECTED] org.apache.geronimo.connector.work.WorkerContext.run(WorkerContext.java:291) org.apache.geronimo.pool.ThreadPool$1.run(ThreadPool.java:172) org.apache.geronimo.pool.ThreadPool$ContextClassLoaderRunnable.run(ThreadPool.java:289) EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(Unknown Source) java.lang.Thread.run(Thread.java:619) All the rest of 29 threads from the pool have the same stack trace as below. Name: ConnectorThreadPool 29 State: WAITING on [EMAIL PROTECTED] Total blocked: 156 Total waited: 1 Stack trace: java.lang.Object.wait(Native Method) java.lang.Object.wait(Object.java:485) edu.emory.mathcs.backport.java.util.concurrent.locks.CondVar.await(CondVar.java:75) edu.emory.mathcs.backport.java.util.concurrent.ArrayBlockingQueue.take(ArrayBlockingQueue.java:318) org.apache.activemq.transport.FutureResponse.getResult(FutureResponse.java:42) org.apache.activemq.transport.ResponseCorrelator.request(ResponseCorrelator.java:75) org.apache.activemq.ActiveMQConnection.syncSendPacket(ActiveMQConnection.java:1175) org.apache.activemq.TransactionContext.setXid(TransactionContext.java:578) org.apache.activemq.TransactionContext.end(TransactionContext.java:329) org.apache.activemq.ra.LocalAndXATransaction.end(LocalAndXATransaction.java:90) org.apache.geronimo.transaction.manager.WrapperNamedXAResource.end(WrapperNamedXAResource.java:51) org.apache.geronimo.transaction.manager.TransactionImpl.delistResource(TransactionImpl.java:209) - locked [EMAIL PROTECTED] org.apache.geronimo.transaction.context.InheritableTransactionContext.delistResource(InheritableTransactionContext.java:99) org.openejb.mdb.EndpointHandler.teardownDelivery(EndpointHandler.java:360) org.openejb.mdb.EndpointHandler.afterDelivery(EndpointHandler.java:256) org.openejb.mdb.EndpointProxy.afterDelivery(EndpointProxy.java:72) org.apache.activemq.ra.MessageEndpointProxy$MessageEndpointAlive.afterDelivery(MessageEndpointProxy.java:126) org.apache.activemq.ra.MessageEndpointProxy.afterDelivery(MessageEndpointProxy.java:65) org.apache.activemq.ra.ServerSessionImpl.afterDelivery(ServerSessionImpl.java:216) org.apache.activemq.ActiveMQSession.run(ActiveMQSession.java:751) org.apache.activemq.ra.ServerSessionImpl.run(ServerSessionImpl.java:165) org.apache.geronimo.connector.work.WorkerContext.run(WorkerContext.java:291) org.apache.geronimo.pool.ThreadPool$1.run(ThreadPool.java:172) org.apache.geronimo.pool.ThreadPool$ContextClassLoaderRunnable.run(ThreadPool.java:289) EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(Unknown Source) java.lang.Thread.run(Thread.java:619) After looking at the stack trace it looks like all threads are blocked on an ArrayBlockingQueue that has a size of 1. It looks like somehow the "Response" is not getting set in the Queue. Also i shld mention that the "ResponseCallback" object is null. Any idea whats causing the problem. Any help is appreciated. Thanks, Vineet -- View this message in context: http://www.nabble.com/Problems-with-RA-under-Geronimo-MDB-container-tf3948560s2354.html#a11201768 Sent from the ActiveMQ - User mailing list archive at Nabble.com.
