Hi James I have tried with the last SNAPSHOT (2006/03/30) and still have the same error in the slave AMQ:
INFO PrefetchSubscription - Could not correlate acknowledgment with dispatched message: MessageAck {commandId = 7147, responseRequired = false, ackType = 2, consumerId = ID:grigri-33775-1143742876537-0:0:1:1, firstMessageId = null, lastMessageId = ID:grigri-33762-1143742836866-0:0:1:1:100, destination = queue://TEST.QUEUE_7, transactionId = TX:ID:grigri-33775-1143742876537-0:0:100, messageCount = 1} INFO Service - Async error occurred: javax.jms.JMSException: Invalid acknowledgment: MessageAck {commandId = 7147, responseRequired = false, ackType = 2, consumerId = ID:grigri-33775-1143742876537-0:0:1:1, firstMessageId = null, lastMessageId = ID:grigri-33762-1143742836866-0:0:1:1:100, destination = queue://TEST.QUEUE_7, transactionId = TX:ID:grigri-33775-1143742876537-0:0:100, messageCount = 1} javax.jms.JMSException: Invalid acknowledgment: MessageAck {commandId = 7147, responseRequired = false, ackType = 2, consumerId = ID:grigri-33775-1143742876537-0:0:1:1, firstMessageId = null, lastMessageId = ID:grigri-33762-1143742836866-0:0:1:1:100, destination = queue://TEST.QUEUE_7, transactionId = TX:ID:grigri-33775-1143742876537-0:0:100, messageCount = 1} at org.apache.activemq.broker.region.PrefetchSubscription.acknowledge(PrefetchSubscription.java:184) at org.apache.activemq.broker.region.AbstractRegion.acknowledge(AbstractRegion.java:204) at org.apache.activemq.broker.region.RegionBroker.acknowledge(RegionBroker.java:342) at org.apache.activemq.broker.TransactionBroker.acknowledge(TransactionBroker.java:176) at org.apache.activemq.broker.BrokerFilter.acknowledge(BrokerFilter.java:61) at org.apache.activemq.broker.BrokerFilter.acknowledge(BrokerFilter.java:61) at org.apache.activemq.broker.BrokerFilter.acknowledge(BrokerFilter.java:61) at org.apache.activemq.broker.BrokerFilter.acknowledge(BrokerFilter.java:61) at org.apache.activemq.broker.MutableBrokerFilter.acknowledge(MutableBrokerFilter.java:73) at org.apache.activemq.broker.AbstractConnection.processMessageAck(AbstractConnection.java:351) at org.apache.activemq.command.MessageAck.visit(MessageAck.java:178) at org.apache.activemq.broker.AbstractConnection.service(AbstractConnection.java:196) at org.apache.activemq.broker.TransportConnection$1.onCommand(TransportConnection.java:62) at org.apache.activemq.transport.ResponseCorrelator.onCommand(ResponseCorrelator.java:88) at org.apache.activemq.transport.TransportFilter.onCommand(TransportFilter.java:70) at org.apache.activemq.transport.vm.VMTransport.oneway(VMTransport.java:75) at org.apache.activemq.transport.MutexTransport.oneway(MutexTransport.java:44) at org.apache.activemq.transport.ResponseCorrelator.oneway(ResponseCorrelator.java:55) at org.apache.activemq.broker.ft.MasterConnector.serviceRemoteCommand(MasterConnector.java:197) at org.apache.activemq.broker.ft.MasterConnector$2.onCommand(MasterConnector.java:97) at org.apache.activemq.transport.ResponseCorrelator.onCommand(ResponseCorrelator.java:88) at org.apache.activemq.transport.TransportFilter.onCommand(TransportFilter.java:70) at org.apache.activemq.transport.WireFormatNegotiator.onCommand(WireFormatNegotiator.java:114) at org.apache.activemq.transport.InactivityMonitor.onCommand(InactivityMonitor.java:122) at org.apache.activemq.transport.TransportSupport.doConsume(TransportSupport.java:87) at org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:139) at java.lang.Thread.run(Thread.java:595) Thanks -- View this message in context: http://www.nabble.com/Slavefailed-with-Invalid-acknowledgment-t1368729.html#a3675779 Sent from the ActiveMQ - User forum at Nabble.com.