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https://issues.apache.org/jira/browse/AMQ-6422?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15473344#comment-15473344
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Gary Tully commented on AMQ-6422:
---------------------------------

[~tabish121] I have a variant of (added in some send threads)  
org.apache.activemq.transport.amqp.interop.AmqpSendReceiveTest#testReceiveMessageAndRefillCreditBeforeAcceptOnQueue
 that can't get past 3 iterations.
working through that. something not right with the prefetch values seen during 
dispatch.

> AMQP - flow(1) without a dispositon can lead to blocked receive
> ---------------------------------------------------------------
>
>                 Key: AMQ-6422
>                 URL: https://issues.apache.org/jira/browse/AMQ-6422
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: AMQP
>            Reporter: Gary Tully
>            Assignee: Gary Tully
>
> Setting prefetch based on the credit can get in a knot if the credit is small 
> and the dispositions are outstanding.
> The prefetch gets set to 1, but with an inflight message, there is nothing 
> dispatched b/c the sub looks full.



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