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https://issues.apache.org/jira/browse/QPID-6268?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14244228#comment-14244228
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Keith Wall edited comment on QPID-6268 at 12/12/14 3:01 PM:
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Note that this defect does not impact the operation of the Broker because no
functional decisions are made based on the statistic. Reduced priority to
Minor.
was (Author: k-wall):
Note that this defect does not impact the operation of the Broker because no
functional decisions are made based on the statistic. Reduce priority to Minor.
> Broker statistic Queue#unacknowledgedMessages is maintained incorrectly when
> the client rolls-back a session with unacknowledged messages
> -----------------------------------------------------------------------------------------------------------------------------------------
>
> Key: QPID-6268
> URL: https://issues.apache.org/jira/browse/QPID-6268
> Project: Qpid
> Issue Type: Bug
> Components: Java Broker
> Affects Versions: 0.18, 0.20, 0.22, 0.24, 0.26, 0.28, 0.30
> Reporter: Keith Wall
> Assignee: Keith Wall
> Priority: Minor
>
> The Broker statistic Queue#unacknowledgedMessages (named "Pre-fetched" on the
> Queue tab in the Management UI) is incorrectly maintained in the event of a
> client rollback if the client has one or more unacknowledged messages.
> The defect can be demonstrated using the Python client, where a sequence of
> receive message, rollback and receive same message and commit on a transacted
> session, will leave a erroneous Queue#unacknowledgedMessages of 1.
> It is not yet clear if the issue is also reproducible from the Qpid JMS
> Client 0-8..0-91 as this client explicitly rejects messages before rollback
> (thus avoiding the Broker defect).
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