Hi gtully, here is the output of the consumer when it fails
27/03/14 12:35:39 - [TRACE,MessageListenerAdapter:360] No result object given - no result to handle 27/03/14 12:35:39 - [TRACE,TransactionSynchronizationManager:140] Retrieved value [org.springframework.jms.listener.LocallyExposedJmsResourceHolder@639e59c6] for key [org.apache.activemq.pool.PooledConnectionFactory@7e83a12a] bound to thread [org.springframework.jms.listener.DefaultMessageListenerContainer#3-1] 27/03/14 12:35:39 - [DEBUG,ActiveMQSession:556] ID:birch-34593-1395916847390-0:3:1 Transaction Commit :TX:ID:birch-34593-1395916847390-0:3:14187 27/03/14 12:35:39 - [DEBUG,Connection:4:55] SENDING: MessageAck {commandId = 66468, responseRequired = false, ackType = 2, consumerId = ID:birch-34593-1395916847390-0:3:1:1, firstMessageId = ID:birch-60203-1395842814608-1:179:1:1:2050, lastMessageId = ID:birch-60203-1395842814608-1:179:1:1:2050, destination = queue://ReceiveQueue, transactionId = TX:ID:birch-34593-1395916847390-0:3:14187, messageCount = 1} 27/03/14 12:35:39 - [DEBUG,TransactionContext:290] Commit: TX:ID:birch-34593-1395916847390-0:3:14187 syncCount: 1 27/03/14 12:35:39 - [DEBUG,Connection:4:55] SENDING: TransactionInfo {commandId = 66469, responseRequired = true, type = 2, connectionId = ID:birch-34593-1395916847390-0:3, transactionId = TX:ID:birch-34593-1395916847390-0:3:14187} 27/03/14 12:35:39 - [DEBUG,Connection:4:60] RECEIVED: Response {commandId = 0, responseRequired = false, correlationId = 66469} 27/03/14 12:35:39 - [TRACE,TransactionSynchronizationManager:243] Removed value [org.springframework.jms.listener.LocallyExposedJmsResourceHolder@639e59c6] for key [org.apache.activemq.pool.PooledConnectionFactory@7e83a12a] from thread [org.springframework.jms.listener.DefaultMessageListenerContainer#3-1] 27/03/14 12:35:39 - [TRACE,DefaultMessageListenerContainer:351] Consumer [ActiveMQMessageConsumer { value=ID:birch-34593-1395916847390-0:2:1:1, started=true }] of session [PooledSession { ActiveMQSession {id=ID:birch-34593-1395916847390-0:2:1,started=true} }] did not receive a message 27/03/14 12:35:39 - [DEBUG,ActiveMQSession:556] ID:birch-34593-1395916847390-0:2:1 Transaction Commit :null 27/03/14 12:35:39 - [TRACE,DefaultMessageListenerContainer:351] Consumer [ActiveMQMessageConsumer { value=ID:birch-34593-1395916847390-0:4:1:1, started=true }] of session [PooledSession { ActiveMQSession {id=ID:birch-34593-1395916847390-0:4:1,started=true} }] did not receive a message 27/03/14 12:35:39 - [DEBUG,ActiveMQSession:556] ID:birch-34593-1395916847390-0:4:1 Transaction Commit :null 27/03/14 12:35:39 - [TRACE,DefaultMessageListenerContainer:351] Consumer [ActiveMQMessageConsumer { value=ID:birch-34593-1395916847390-0:6:1:1, started=true }] of session [PooledSession { ActiveMQSession {id=ID:birch-34593-1395916847390-0:6:1,started=true} }] did not receive a message 27/03/14 12:35:39 - [DEBUG,ActiveMQSession:556] ID:birch-34593-1395916847390-0:6:1 Transaction Commit :null 27/03/14 12:35:40 - [TRACE,DefaultMessageListenerContainer:351] Consumer [ActiveMQMessageConsumer { value=ID:birch-34593-1395916847390-0:5:1:1, started=true }] of session [PooledSession { ActiveMQSession {id=ID:birch-34593-1395916847390-0:5:1,started=true} }] did not receive a message 27/03/14 12:35:40 - [TRACE,DefaultMessageListenerContainer:351] Consumer [ActiveMQMessageConsumer { value=ID:birch-34593-1395916847390-0:1:1:1, started=true }] of session [PooledSession { ActiveMQSession {id=ID:birch-34593-1395916847390-0:1:1,started=true} }] did not receive a message 27/03/14 12:35:40 - [DEBUG,ActiveMQSession:556] ID:birch-34593-1395916847390-0:1:1 Transaction Commit :null 27/03/14 12:35:40 - [TRACE,DefaultMessageListenerContainer:351] Consumer [ActiveMQMessageConsumer { value=ID:birch-34593-1395916847390-0:0:1:1, started=true }] of session [PooledSession { ActiveMQSession {id=ID:birch-34593-1395916847390-0:0:1,started=true} }] did not receive a message 27/03/14 12:35:40 - [DEBUG,ActiveMQSession:556] ID:birch-34593-1395916847390-0:0:1 Transaction Commit :null 27/03/14 12:35:40 - [TRACE,DefaultMessageListenerContainer:351] Consumer [ActiveMQMessageConsumer { value=ID:birch-34593-1395916847390-0:3:1:1, started=true }] of session [PooledSession { ActiveMQSession {id=ID:birch-34593-1395916847390-0:3:1,started=true} }] did not receive a message 27/03/14 12:35:40 - [DEBUG,ActiveMQSession:556] ID:birch-34593-1395916847390-0:3:1 Transaction Commit :null 27/03/14 12:35:40 - [TRACE,DefaultMessageListenerContainer:351] Consumer [ActiveMQMessageConsumer { value=ID:birch-34593-1395916847390-0:2:1:1, started=true }] of session [PooledSession { ActiveMQSession {id=ID:birch-34593-1395916847390-0:2:1,started=true} }] did not receive a message 27/03/14 12:35:40 - [DEBUG,ActiveMQSession:556] ID:birch-34593-1395916847390-0:2:1 Transaction Commit :null 27/03/14 12:35:40 - [TRACE,DefaultMessageListenerContainer:351] Consumer [ActiveMQMessageConsumer { value=ID:birch-34593-1395916847390-0:4:1:1, started=true }] of session [PooledSession { ActiveMQSession {id=ID:birch-34593-1395916847390-0:4:1,started=true} }] did not receive a message 27/03/14 12:35:40 - [DEBUG,ActiveMQSession:556] ID:birch-34593-1395916847390-0:4:1 Transaction Commit :null 27/03/14 12:35:40 - [TRACE,DefaultMessageListenerContainer:351] Consumer [ActiveMQMessageConsumer { value=ID:birch-34593-1395916847390-0:6:1:1, started=true }] of session [PooledSession { ActiveMQSession {id=ID:birch-34593-1395916847390-0:6:1,started=true} }] did not receive a message 27/03/14 12:35:40 - [DEBUG,ActiveMQSession:556] ID:birch-34593-1395916847390-0:6:1 Transaction Commit :null 27/03/14 12:35:47 - [DEBUG,InactivityMonitor:106] 9999 ms elapsed since last write check. 27/03/14 12:35:47 - [TRACE,InactivityMonitor:152] Message sent since last write check, resetting flag 27/03/14 12:35:47 - [DEBUG,InactivityMonitor:106] 10000 ms elapsed since last write check. 27/03/14 12:35:47 - [TRACE,InactivityMonitor:134] No message sent since last write check, sending a KeepAliveInfo 27/03/14 12:35:47 - [DEBUG,Connection:2:55] SENDING: KeepAliveInfo {} 27/03/14 12:35:47 - [DEBUG,InactivityMonitor:106] 10000 ms elapsed since last write check. 27/03/14 12:35:47 - [TRACE,InactivityMonitor:134] No message sent since last write check, sending a KeepAliveInfo 27/03/14 12:35:47 - [DEBUG,Connection:3:55] SENDING: KeepAliveInfo {} 27/03/14 12:35:47 - [TRACE,DefaultMessageListenerContainer:351] Consumer [ActiveMQMessageConsumer { value=ID:birch-34593-1395916847390-0:2:1:1, started=true }] of session [PooledSession { ActiveMQSession {id=ID:birch-34593-1395916847390-0:2:1,started=true} }] did not receive a message 27/03/14 12:35:47 - [DEBUG,ActiveMQSession:556] ID:birch-34593-1395916847390-0:2:1 Transaction Commit :null 27/03/14 12:35:47 - [DEBUG,InactivityMonitor:106] 9999 ms elapsed since last write check. 27/03/14 12:35:47 - [TRACE,InactivityMonitor:152] Message sent since last write check, resetting flag 27/03/14 12:35:47 - [DEBUG,Connection:1:60] RECEIVED: KeepAliveInfo {} 27/03/14 12:35:47 - [TRACE,DefaultMessageListenerContainer:351] Consumer [ActiveMQMessageConsumer { value=ID:birch-34593-1395916847390-0:4:1:1, started=true }] of session [PooledSession { ActiveMQSession {id=ID:birch-34593-1395916847390-0:4:1,started=true} }] did not receive a message 27/03/14 12:35:47 - [DEBUG,ActiveMQSession:556] ID:birch-34593-1395916847390-0:4:1 Transaction Commit :null 27/03/14 12:35:47 - [DEBUG,InactivityMonitor:106] 10000 ms elapsed since last write check. 27/03/14 12:35:47 - [TRACE,InactivityMonitor:152] Message sent since last write check, resetting flag 27/03/14 12:35:47 - [TRACE,DefaultMessageListenerContainer:351] Consumer [ActiveMQMessageConsumer { value=ID:birch-34593-1395916847390-0:6:1:1, started=true }] of session [PooledSession { ActiveMQSession {id=ID:birch-34593-1395916847390-0:6:1,started=true} }] did not receive a message 27/03/14 12:35:47 - [DEBUG,ActiveMQSession:556] ID:birch-34593-1395916847390-0:6:1 Transaction Commit :null 27/03/14 12:35:47 - [DEBUG,InactivityMonitor:106] 10000 ms elapsed since last write check. 27/03/14 12:35:47 - [TRACE,InactivityMonitor:152] Message sent since last write check, resetting flag 27/03/14 12:35:47 - [DEBUG,InactivityMonitor:106] 10000 ms elapsed since last write check. 27/03/14 12:35:47 - [TRACE,InactivityMonitor:152] Message sent since last write check, resetting flag 27/03/14 12:35:47 - [DEBUG,Connection:2:60] RECEIVED: KeepAliveInfo {} 27/03/14 12:35:47 - [DEBUG,Connection:3:60] RECEIVED: KeepAliveInfo {} I checked the open file descriptor and it looks fine. There are no errors in the broker log files that I can see: 2014-03-27 12:35:39,210 | DEBUG | localhost removing consumer: ID:birch-60203-1395842814608-1:187:1:13330 for destination: queue://SendQueue | org.apache.activemq.broker.region.AbstractRegion | ActiveMQ Transport: tcp:///127.0.0.1:39612@61616 2014-03-27 12:35:39,210 | DEBUG | queue://SendQueue remove sub: QueueSubscription: consumer=ID:birch-60203-1395842814608-1:187:1:13330, destinations=1, dispatched=0, delivered=0, pending=0, lastDeliveredSeqId: 0, dequeues: 0, dispatched: 0, inflight: 0 | org.apache.activemq.broker.region.Queue | ActiveMQ Transport: tcp:///127.0.0.1:39612@61616 2014-03-27 12:35:39,210 | DEBUG | Unregistering MBean org.apache.activemq:type=Broker,brokerName=localhost,destinationType=Queue,destinationName=SendQueue,endpoint=Consumer,clientId=ID_birch-60203-1395842814608-0_188,consumerId=ID_birch-60203-1395842814608-1_188_1_13382 | org.apache.activemq.broker.jmx.ManagementContext | ActiveMQ Transport: tcp:///127.0.0.1:39614@61616 2014-03-27 12:35:39,210 | DEBUG | localhost removing consumer: ID:birch-60203-1395842814608-1:188:1:13382 for destination: queue://SendQueue | org.apache.activemq.broker.region.AbstractRegion | ActiveMQ Transport: tcp:///127.0.0.1:39614@61616 2014-03-27 12:35:39,210 | DEBUG | queue://SendQueue remove sub: QueueSubscription: consumer=ID:birch-60203-1395842814608-1:188:1:13382, destinations=1, dispatched=0, delivered=0, pending=0, lastDeliveredSeqId: 0, dequeues: 0, dispatched: 0, inflight: 0 | org.apache.activemq.broker.region.Queue | ActiveMQ Transport: tcp:///127.0.0.1:39614@61616 2014-03-27 12:35:39,210 | TRACE | Running task iteration 0 - queue://SendQueue, subscriptions=10, memory=0%, size=0, in flight groups=active message group buckets: 0 | org.apache.activemq.thread.PooledTaskRunner | ActiveMQ BrokerService[localhost] Task-467 2014-03-27 12:35:39,210 | TRACE | Running task iteration 1 - queue://SendQueue, subscriptions=9, memory=0%, size=0, in flight groups=active message group buckets: 0 | org.apache.activemq.thread.PooledTaskRunner | ActiveMQ BrokerService[localhost] Task-467 2014-03-27 12:35:39,210 | TRACE | Run task done: queue://SendQueue, subscriptions=9, memory=0%, size=0, in flight groups=active message group buckets: 0 | org.apache.activemq.thread.PooledTaskRunner | ActiveMQ BrokerService[localhost] Task-467 2014-03-27 12:35:39,210 | TRACE | Running task iteration 0 - queue://SendQueue, subscriptions=9, memory=0%, size=0, in flight groups=active message group buckets: 0 | org.apache.activemq.thread.PooledTaskRunner | ActiveMQ BrokerService[localhost] Task-474 2014-03-27 12:35:39,210 | TRACE | Run task done: queue://SendQueue, subscriptions=9, memory=0%, size=0, in flight groups=active message group buckets: 0 | org.apache.activemq.thread.PooledTaskRunner | ActiveMQ BrokerService[localhost] Task-474 2014-03-27 12:35:39,211 | TRACE | ack:MessageAck {commandId = 66468, responseRequired = false, ackType = 2, consumerId = ID:birch-34593-1395916847390-0:3:1:1, firstMessageId = ID:birch-60203-1395842814608-1:179:1:1:2050, lastMessageId = ID:birch-60203-1395842814608-1:179:1:1:2050, destination = queue://ReceiveQueue, transactionId = TX:ID:birch-34593-1395916847390-0:3:14187, messageCount = 1, poisonCause = null} | org.apache.activemq.broker.region.PrefetchSubscription | ActiveMQ Transport: tcp:///127.0.0.1:48219@61616 2014-03-27 12:35:39,211 | TRACE | ack of ID:birch-60203-1395842814608-1:179:1:1:2050 with MessageAck {commandId = 66468, responseRequired = false, ackType = 2, consumerId = ID:birch-34593-1395916847390-0:3:1:1, firstMessageId = ID:birch-60203-1395842814608-1:179:1:1:2050, lastMessageId = ID:birch-60203-1395842814608-1:179:1:1:2050, destination = queue://ReceiveQueue, transactionId = TX:ID:birch-34593-1395916847390-0:3:14187, messageCount = 1, poisonCause = null} | org.apache.activemq.broker.region.Queue | ActiveMQ Transport: tcp:///127.0.0.1:48219@61616 2014-03-27 12:35:39,211 | TRACE | Running task iteration 0 - queue://ReceiveQueue, subscriptions=1, memory=0%, size=0, in flight groups=active message group buckets: 0 | org.apache.activemq.thread.PooledTaskRunner | ActiveMQ BrokerService[localhost] Task-474 2014-03-27 12:35:39,211 | TRACE | Run task done: queue://ReceiveQueue, subscriptions=1, memory=0%, size=0, in flight groups=active message group buckets: 0 | org.apache.activemq.thread.PooledTaskRunner | ActiveMQ BrokerService[localhost] Task-474 2014-03-27 12:35:39,212 | DEBUG | commit: TX:ID:birch-34593-1395916847390-0:3:14187 syncCount: 4 | org.apache.activemq.transaction.LocalTransaction | ActiveMQ Transport: tcp:///127.0.0.1:48219@61616 2014-03-27 12:35:39,212 | DEBUG | localhost Message ID:birch-34593-1395916847390-0:3:1:1:23903 sent to queue://InvalidAcetechMessageQueue | org.apache.activemq.broker.region.Queue | ActiveMQ Transport: tcp:///127.0.0.1:48219@61616 2014-03-27 12:35:39,213 | TRACE | Running task iteration 0 - queue://InvalidAcetechMessageQueue, subscriptions=0, memory=4%, size=20, in flight groups=null | org.apache.activemq.thread.PooledTaskRunner | ActiveMQ BrokerService[localhost] Task-474 2014-03-27 12:35:39,213 | DEBUG | InvalidAcetechMessageQueue toPageIn: 20, Inflight: 0, pagedInMessages.size 2601, enqueueCount: 2621, dequeueCount: 0 | org.apache.activemq.broker.region.Queue | ActiveMQ BrokerService[localhost] Task-474 2014-03-27 12:35:39,213 | TRACE | Run task done: queue://InvalidAcetechMessageQueue, subscriptions=0, memory=4%, size=20, in flight groups=null | org.apache.activemq.thread.PooledTaskRunner | ActiveMQ BrokerService[localhost] Task-474 2014-03-27 12:35:39,213 | TRACE | Running task iteration 0 - queue://ReceiveQueue, subscriptions=1, memory=0%, size=0, in flight groups=active message group buckets: 0 | org.apache.activemq.thread.PooledTaskRunner | ActiveMQ BrokerService[localhost] Task-467 2014-03-27 12:35:39,213 | TRACE | Running task iteration 1 - queue://ReceiveQueue, subscriptions=1, memory=0%, size=0, in flight groups=active message group buckets: 0 | org.apache.activemq.thread.PooledTaskRunner | ActiveMQ BrokerService[localhost] Task-467 2014-03-27 12:35:39,213 | TRACE | Run task done: queue://ReceiveQueue, subscriptions=1, memory=0%, size=0, in flight groups=active message group buckets: 0 | org.apache.activemq.thread.PooledTaskRunner | ActiveMQ BrokerService[localhost] Task-467 2014-03-27 12:35:39,236 | DEBUG | Unregistering MBean org.apache.activemq:type=Broker,brokerName=localhost,destinationType=Queue,destinationName=SendQueue,endpoint=Consumer,clientId=ID_birch-60203-1395842814608-0_186,consumerId=ID_birch-60203-1395842814608-1_186_1_13322 | org.apache.activemq.broker.jmx.ManagementContext | ActiveMQ Transport: tcp:///127.0.0.1:39573@61616 2014-03-27 12:35:39,237 | DEBUG | localhost removing consumer: ID:birch-60203-1395842814608-1:186:1:13322 for destination: queue://SendQueue | org.apache.activemq.broker.region.AbstractRegion | ActiveMQ Transport: tcp:///127.0.0.1:39573@61616 2014-03-27 12:35:39,237 | DEBUG | queue://SendQueue remove sub: QueueSubscription: consumer=ID:birch-60203-1395842814608-1:186:1:13322, destinations=1, dispatched=0, delivered=0, pending=0, lastDeliveredSeqId: 0, dequeues: 0, dispatched: 0, inflight: 0 | org.apache.activemq.broker.region.Queue | ActiveMQ Transport: tcp:///127.0.0.1:39573@61616 2014-03-27 12:35:39,237 | TRACE | Running task iteration 0 - queue://SendQueue, subscriptions=8, memory=0%, size=0, in flight groups=active message group buckets: 0 | org.apache.activemq.thread.PooledTaskRunner | ActiveMQ BrokerService[localhost] Task-467 2014-03-27 12:35:39,237 | TRACE | Run task done: queue://SendQueue, subscriptions=8, memory=0%, size=0, in flight groups=active message group buckets: 0 | org.apache.activemq.thread.PooledTaskRunner | ActiveMQ BrokerService[localhost] Task-467 2014-03-27 12:35:39,247 | DEBUG | localhost adding consumer: ID:birch-60203-1395842814608-1:175:1:13296 for destination: queue://SendQueue | org.apache.activemq.broker.region.AbstractRegion | ActiveMQ Transport: tcp:///127.0.0.1:39634@61616 2014-03-27 12:35:39,248 | DEBUG | queue://SendQueue add sub: QueueSubscription: consumer=ID:birch-60203-1395842814608-1:175:1:13296, destinations=0, dispatched=0, delivered=0, pending=0, dequeues: 0, dispatched: 0, inflight: 0 | org.apache.activemq.broker.region.Queue | ActiveMQ Transport: tcp:///127.0.0.1:39634@61616 Is there anything else, the resources on the machine look fine. -- View this message in context: http://activemq.2283324.n4.nabble.com/Messages-stuck-in-queue-5-9-0-tp4679266p4679582.html Sent from the ActiveMQ - 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