Hi, in one of my installations using 5.4.2 broker, I got the following exception, after processing of a message failed several times in a row within XA transactions. The message never appeared in a DLQ and seems to have been lost. Any ideas what could be causing this?
2011-04-17 13:41:59,353 | WARN | Caught an exception sending to DLQ: Message e041e768-ee0e-4cac-0f10-fc58d7c7409d:0:11:11 dropped=false acked=false locked=true | org.apache.activemq.broker.region.RegionBroker | ActiveMQ Transport: ssl:///172.17.1.5:48447 java.lang.NullPointerException at org.apache.activemq.store.kahadb.MessageDatabase$MessageOrderIndex.load(MessageDatabase.java:2055) at org.apache.activemq.store.kahadb.MessageDatabase.loadStoredDestination(MessageDatabase.java:1529) at org.apache.activemq.store.kahadb.MessageDatabase.getStoredDestination(MessageDatabase.java:1484) at org.apache.activemq.store.kahadb.KahaDBStore$KahaDBMessageStore$2.execute(KahaDBStore.java:426) at org.apache.activemq.store.kahadb.KahaDBStore$KahaDBMessageStore$2.execute(KahaDBStore.java:422) at org.apache.kahadb.page.Transaction.execute(Transaction.java:751) at org.apache.activemq.store.kahadb.KahaDBStore$KahaDBMessageStore.getMessageCount(KahaDBStore.java:421) at org.apache.activemq.store.ProxyMessageStore.getMessageCount(ProxyMessageStore.java:84) at org.apache.activemq.broker.region.Queue$5.<init>(Queue.java:270) at org.apache.activemq.broker.region.Queue.initialize(Queue.java:269) at org.apache.activemq.broker.region.DestinationFactoryImpl.createDestination(DestinationFactoryImpl.java:86) at org.apache.activemq.broker.region.AbstractRegion.createDestination(AbstractRegion.java:473) at org.apache.activemq.broker.jmx.ManagedQueueRegion.createDestination(ManagedQueueRegion.java:56) at org.apache.activemq.broker.region.AbstractRegion.addDestination(AbstractRegion.java:123) at org.apache.activemq.broker.region.RegionBroker.addDestination(RegionBroker.java:298) at org.apache.activemq.broker.BrokerFilter.addDestination(BrokerFilter.java:145) at org.apache.activemq.advisory.AdvisoryBroker.addDestination(AdvisoryBroker.java:157) at org.apache.activemq.broker.BrokerFilter.addDestination(BrokerFilter.java:145) at org.apache.activemq.broker.BrokerFilter.addDestination(BrokerFilter.java:145) at org.apache.activemq.broker.BrokerFilter.addDestination(BrokerFilter.java:145) at org.apache.activemq.broker.BrokerFilter.addDestination(BrokerFilter.java:145) at org.apache.activemq.broker.BrokerFilter.addDestination(BrokerFilter.java:145) at org.apache.activemq.broker.MutableBrokerFilter.addDestination(MutableBrokerFilter.java:151) at org.apache.activemq.broker.region.RegionBroker.send(RegionBroker.java:498) at org.apache.activemq.broker.BrokerFilter.send(BrokerFilter.java:129) at org.apache.activemq.broker.CompositeDestinationBroker.send(CompositeDestinationBroker.java:96) at org.apache.activemq.broker.TransactionBroker.send(TransactionBroker.java:227) at org.apache.activemq.broker.BrokerFilter.send(BrokerFilter.java:129) at org.apache.activemq.broker.UserIDBroker.send(UserIDBroker.java:39) at org.apache.activemq.broker.BrokerFilter.send(BrokerFilter.java:129) at org.apache.activemq.broker.BrokerFilter.send(BrokerFilter.java:129) at org.apache.activemq.broker.MutableBrokerFilter.send(MutableBrokerFilter.java:135) at org.apache.activemq.util.BrokerSupport.doResend(BrokerSupport.java:67) at org.apache.activemq.util.BrokerSupport.resendNoCopy(BrokerSupport.java:38) at org.apache.activemq.broker.region.RegionBroker.sendToDeadLetterQueue(RegionBroker.java:830) at org.apache.activemq.broker.BrokerFilter.sendToDeadLetterQueue(BrokerFilter.java:261) at org.apache.activemq.advisory.AdvisoryBroker.sendToDeadLetterQueue(AdvisoryBroker.java:392) at org.apache.activemq.broker.BrokerFilter.sendToDeadLetterQueue(BrokerFilter.java:261) at org.apache.activemq.broker.BrokerFilter.sendToDeadLetterQueue(BrokerFilter.java:261) at org.apache.activemq.broker.BrokerFilter.sendToDeadLetterQueue(BrokerFilter.java:261) at org.apache.activemq.broker.BrokerFilter.sendToDeadLetterQueue(BrokerFilter.java:261) at org.apache.activemq.broker.BrokerFilter.sendToDeadLetterQueue(BrokerFilter.java:261) at org.apache.activemq.broker.MutableBrokerFilter.sendToDeadLetterQueue(MutableBrokerFilter.java:273) at org.apache.activemq.broker.region.PrefetchSubscription.sendToDLQ(PrefetchSubscription.java:458) at org.apache.activemq.broker.region.PrefetchSubscription.acknowledge(PrefetchSubscription.java:364) at org.apache.activemq.broker.region.AbstractRegion.acknowledge(AbstractRegion.java:383) at org.apache.activemq.broker.region.RegionBroker.acknowledge(RegionBroker.java:544) at org.apache.activemq.broker.BrokerFilter.acknowledge(BrokerFilter.java:77) at org.apache.activemq.broker.BrokerFilter.acknowledge(BrokerFilter.java:77) at org.apache.activemq.broker.TransactionBroker.acknowledge(TransactionBroker.java:197) at org.apache.activemq.broker.BrokerFilter.acknowledge(BrokerFilter.java:77) at org.apache.activemq.broker.BrokerFilter.acknowledge(BrokerFilter.java:77) at org.apache.activemq.broker.BrokerFilter.acknowledge(BrokerFilter.java:77) at org.apache.activemq.broker.MutableBrokerFilter.acknowledge(MutableBrokerFilter.java:87) at org.apache.activemq.broker.TransportConnection.processMessageAck(TransportConnection.java:469) at org.apache.activemq.command.MessageAck.visit(MessageAck.java:214) at org.apache.activemq.broker.TransportConnection.service(TransportConnection.java:311) at org.apache.activemq.broker.TransportConnection$1.onCommand(TransportConnection.java:185) at org.apache.activemq.transport.TransportFilter.onCommand(TransportFilter.java:69) at org.apache.activemq.transport.WireFormatNegotiator.onCommand(WireFormatNegotiator.java:113) at org.apache.activemq.transport.InactivityMonitor.onCommand(InactivityMonitor.java:228) at org.apache.activemq.transport.TransportSupport.doConsume(TransportSupport.java:83) at org.apache.activemq.transport.tcp.SslTransport.doConsume(SslTransport.java:91) at org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:220) at org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:202) at java.lang.Thread.run(Thread.java:662) Thanks in advance, Martin