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From "Martin Ritchie (JIRA)" <qpid-...@incubator.apache.org>
Subject [jira] Commented: (QPID-7) Occasionally messages are ack'd more than once
Date Wed, 27 Sep 2006 10:06:50 GMT
    [ http://issues.apache.org/jira/browse/QPID-7?page=comments#action_12438077 ] 
            
Martin Ritchie commented on QPID-7:
-----------------------------------

javax.jms.JMSException: Failed to commit: Error: Failed to commit: Multiple ack on delivery
tag 460 not known for channel [error code 0] [error code 0]
javax.jms.JMSException: Failed to commit: Error: Failed to commit: Multiple ack on delivery
tag 460 not known for channel [error code 0] [error code 0]
        at org.apache.qpid.client.AMQSession.commit(AMQSession.java:414)
        at com.ibm.uk.hursley.perfharness.jms.r11.PutGet.oneIteration(PutGet.java:199)
        at com.ibm.uk.hursley.perfharness.WorkerThread.pace(WorkerThread.java:163)
        at com.ibm.uk.hursley.perfharness.jms.r11.PutGet.run(PutGet.java:124)
org.apache.qpid.AMQChannelClosedException: Error: Failed to commit: Multiple ack on delivery
tag 460 not known for channel [error code 0] [error code 0]
        at org.apache.qpid.client.handler.ChannelCloseMethodHandler.methodReceived(ChannelCloseMethodHandler.java:73)
        at org.apache.qpid.client.state.AMQStateManager.methodReceived(AMQStateManager.java:148)
        at org.apache.qpid.client.protocol.AMQProtocolHandler$1.methodReceived(AMQProtocolHandler.java:98)
        at org.apache.qpid.client.protocol.AMQProtocolHandler.messageReceived(AMQProtocolHandler.java:310)

This test ran all night with no problem. Since I tidied up the code for svn and commited it
the transacted case now fails.

> Occasionally messages are ack'd more than once
> ----------------------------------------------
>
>                 Key: QPID-7
>                 URL: http://issues.apache.org/jira/browse/QPID-7
>             Project: Qpid
>          Issue Type: Bug
>            Reporter: Martin Ritchie
>
> When running a single queue and sending and receiving to that queue in the same session
(Not in a transaction) occasionally the broker appears to get multiple acks for a given tag.
Interestingly when running inside a transaction this doesn't happen.
> 2006-09-21 10:35:24,763 ERROR [pool-10-thread-4] state.AMQStateManager (AMQStateManager.java:150)
- State manager received error notification: org.apache.qpid.AMQException: Single ack on delivery
tag 434 not known for channel:1
> org.apache.qpid.AMQException: Single ack on delivery tag 434 not known for channel:1
> 	at org.apache.qpid.server.AMQChannel.handleAcknowledgement(AMQChannel.java:550)
> 	at org.apache.qpid.server.AMQChannel.acknowledgeMessage(AMQChannel.java:492)
> 	at org.apache.qpid.server.handler.BasicAckMethodHandler.methodReceived(BasicAckMethodHandler.java:50)
> 	at org.apache.qpid.server.state.AMQStateManager.methodReceived(AMQStateManager.java:165)
> 	at org.apache.qpid.server.protocol.AMQMinaProtocolSession.methodFrameReceived(AMQMinaProtocolSession.java:358)
> 	at org.apache.qpid.server.protocol.AMQMinaProtocolSession.dataBlockReceived(AMQMinaProtocolSession.java:326)
> 	at org.apache.qpid.server.protocol.AMQPFastProtocolHandler.messageReceived(AMQPFastProtocolHandler.java:181)

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