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https://issues.apache.org/jira/browse/QPID-6088?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14125759#comment-14125759
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ASF subversion and git services commented on QPID-6088:
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Commit 1623431 from [~godfrer] in branch 'qpid/trunk'
[ https://svn.apache.org/r1623431 ]
QPID-6088 : [Java Client] reenable logging test
> [Java Client] AMQP 0-8/8/9-1 prefetch should auto expand when receive is
> called in a situation where the prefetch buffer is full
> --------------------------------------------------------------------------------------------------------------------------------
>
> Key: QPID-6088
> URL: https://issues.apache.org/jira/browse/QPID-6088
> Project: Qpid
> Issue Type: Improvement
> Components: Java Client
> Reporter: Rob Godfrey
> Assignee: Keith Wall
> Fix For: 0.31
>
>
> 0-8/9/9-1 controls the message prefetch on a per-session basis... however
> space if not freed in the prefetch buffer until messages are
> acknowledged/committed.
> In the case of client-ack / transactional messaging setting the prefetch
> value to a low number (e.g. 1) and then attempting to receive() multiple
> messages can lead to an effective deadlock whereby the client is waiting for
> a message that cannot come because the prefetch buffer is "full".
> In the case where the client is explicitly calling receive() through the API
> we should expand the prefetch buffer in an attempt to meet their request for
> new messages.
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