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https://issues.apache.org/jira/browse/QPID-4647?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Rob Godfrey resolved QPID-4647.
-------------------------------
Resolution: Duplicate
> Broker allows the creation of duplicate queue entries on a single queue which
> then fail on-dequeue.
> ---------------------------------------------------------------------------------------------------
>
> Key: QPID-4647
> URL: https://issues.apache.org/jira/browse/QPID-4647
> Project: Qpid
> Issue Type: Bug
> Affects Versions: 0.10, 0.12, 0.14, 0.16, 0.18, 0.20, 0.21
> Reporter: Keith Wall
>
> Using the copyMessage function, it is possible to cause a single message to
> appear _twice_ on a single queue. When a consumer consumes the duplicate and
> tries to acknowledge the duplicate, the Broker produces the following error.
> It is also possible to create the same situation using certain dead-letter
> arrangements.
> org.apache.qpid.AMQStoreException: Unable to find message with id 1 on queue
> dest with id 1ad9e427-b87e-3702-8ea3-0816a10d60ba [error code 541: internal
> error] at
> org.apache.qpid.server.store.berkeleydb.AbstractBDBMessageStore.dequeueMessage(AbstractBDBMessageStore.java:948)
> at
> org.apache.qpid.server.store.berkeleydb.AbstractBDBMessageStore$BDBTransaction.dequeueMessage(AbstractBDBMessageStore.java:1643)
> at
> org.apache.qpid.server.txn.LocalTransaction.dequeue(LocalTransaction.java:142)
> at org.apache.qpid.server.AMQChannel.acknowledgeMessage(AMQChannel.java:847)
> at
> org.apache.qpid.server.handler.BasicAckMethodHandler.methodReceived(BasicAckMethodHandler.java:65)
> at
> org.apache.qpid.server.handler.ServerMethodDispatcherImpl.dispatchBasicAck(ServerMethodDispatcherImpl.java:133)
> at
> org.apache.qpid.framing.amqp_0_9.BasicAckBodyImpl.execute(BasicAckBodyImpl.java:123)
> at
> org.apache.qpid.server.state.AMQStateManager.methodReceived(AMQStateManager.java:120)
> at
> org.apache.qpid.server.protocol.AMQProtocolEngine.methodFrameReceived(AMQProtocolEngine.java:454)
> at
> org.apache.qpid.framing.AMQMethodBodyImpl.handle(AMQMethodBodyImpl.java:97)
> at
> org.apache.qpid.server.protocol.AMQProtocolEngine.frameReceived(AMQProtocolEngine.java:338)
> at
> org.apache.qpid.server.protocol.AMQProtocolEngine.dataBlockReceived(AMQProtocolEngine.java:283)
> at
> org.apache.qpid.server.protocol.AMQProtocolEngine.received(AMQProtocolEngine.java:242)
> at
> org.apache.qpid.server.protocol.AMQProtocolEngine.received(AMQProtocolEngine.java:81)
> at
> org.apache.qpid.server.protocol.MultiVersionProtocolEngine.received(MultiVersionProtocolEngine.java:118)
> at
> org.apache.qpid.server.protocol.MultiVersionProtocolEngine.received(MultiVersionProtocolEngine.java:37)
> at org.apache.qpid.transport.network.io.IoReceiver.run(IoReceiver.java:161)
> at java.lang.Thread.run(Thread.java:662)
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