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https://issues.apache.org/jira/browse/QPID-7767?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15999222#comment-15999222
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Robbie Gemmell commented on QPID-7767:
--------------------------------------

The exception is indicating the client tried to 'drain' its consumer link 
credit and the process did not complete in a timely manner, typically because 
the server didnt respond to the attempt. Amongst other cases, the client mainly 
does this when a receive() call timeout elapses without a message being locally 
available, and it tries to ensure none were in flight or available remotely 
before returning null. The old client didn't do that, and so didn't show up the 
issue of Service Bus not implementing the 'drain' functionality from the AMQP 
1.0 core spec.

If you add the "jms.receiveLocalOnly=true" option value (from 
http://qpid.apache.org/releases/qpid-jms-0.11.1/docs/index.html#jms-configuration-options)
 to your connection URI it will configure the receive call to work only out of 
the consumers local buffer without draining the link when nothing arrives.


> Unknown endpoint Transfer issue on AMQP Connection
> --------------------------------------------------
>
>                 Key: QPID-7767
>                 URL: https://issues.apache.org/jira/browse/QPID-7767
>             Project: Qpid
>          Issue Type: Bug
>          Components: Java Client
>    Affects Versions: 0.32
>         Environment: AMQP Client  - Qpid 0.32 runs on Java run time 1.7 on 
> Linux box  on softLayer
> AMQP Server -   Azure Service bus on Public cloud
>            Reporter: Kapila Arora
>            Priority: Critical
>             Fix For: 0.32
>
>         Attachments: Qpid_error_log.txt
>
>
> Getting Errors in the AMQP Client 
> 2017-05-03 06:45:15.048    212 Unknown endpoint 
> Transfer{handle=0,deliveryId=2,deliveryTag=\xf3\x99\x90\x5cL\xb1\xdeF\x9da\xa3o\xb0\x5cdm,messageFormat=0,more=true,batchable=true}
> Data Packets 
> Unknown endpoint 
> Transfer{handle=0,deliveryId=2,deliveryTag=\xf3\x99\x90\x5cL\xb1\xdeF\x9da\xa3o\xb0\x5cdm,messageFormat=0,more=true,batchable=true}
> 2017-05-03 06:45:15.396    212 Unknown endpoint Transfer{handle=0,more=false}



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