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https://issues.apache.org/jira/browse/QPID-2745?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Keith Wall closed QPID-2745.
----------------------------
Resolution: Fixed
Looking at the current implementation (UnacknowledgedMessageMap @ 0.29) this
defect can no longer occur. I cannot be certain when this became the case.
> [Java 0-8 Client] Failover during transaction may cause erroneous attempts to
> acknowledge in new connection
> -----------------------------------------------------------------------------------------------------------
>
> Key: QPID-2745
> URL: https://issues.apache.org/jira/browse/QPID-2745
> Project: Qpid
> Issue Type: Bug
> Components: Java Client
> Affects Versions: 0.6
> Reporter: Rob Godfrey
> Labels: failover
>
> It was observed that a failover (in the case caused by a timeout) caused the
> client to attempt to ack messages on the new connection that has been
> received on the old connection - this caused a broker error:
> 2010-06-25 14:04:28,766 ERROR [pool-2-thread-14]
> protocol.AMQMinaProtocolSession (AMQMinaProtocolSession.java:409) -
> Unexpected exception while processing frame. Closing connection.
> org.apache.qpid.AMQException: Ack with delivery tag 22 not known for channel
> at
> org.apache.qpid.server.txn.LocalTransactionalContext.checkAck(LocalTransactionalContext.java:172)
> at
> org.apache.qpid.server.txn.LocalTransactionalContext.acknowledgeMessage(LocalTransactionalContext.java:182)
> at
> org.apache.qpid.server.ack.UnacknowledgedMessageMapImpl.acknowledgeMessage(UnacknowledgedMessageMapImpl.java:143)
> at
> org.apache.qpid.server.AMQChannel.acknowledgeMessage(AMQChannel.java:772)
> at
> org.apache.qpid.server.handler.BasicAckMethodHandler.methodReceived(BasicAckMethodHandler.java:65)
> at
> org.apache.qpid.server.handler.ServerMethodDispatcherImpl.dispatchBasicAck(ServerMethodDispatcherImpl.java:125)
> at
> org.apache.qpid.framing.amqp_0_9.BasicAckBodyImpl.execute(BasicAckBodyImpl.java:126)
> at
> org.apache.qpid.server.state.AMQStateManager.methodReceived(AMQStateManager.java:204)
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