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https://issues.apache.org/jira/browse/DISPATCH-1579?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17042284#comment-17042284
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Ken Giusti commented on DISPATCH-1579:
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The above pull request adds a test to the system_tests_router_mesh.py tests
that triggers the hang.
> Traffic hangs when multiple large messages are sent using different priorities
> ------------------------------------------------------------------------------
>
> Key: DISPATCH-1579
> URL: https://issues.apache.org/jira/browse/DISPATCH-1579
> Project: Qpid Dispatch
> Issue Type: Bug
> Components: Router Node
> Affects Versions: 1.10.0
> Reporter: Ken Giusti
> Assignee: Ken Giusti
> Priority: Blocker
> Fix For: 1.11.0
>
>
> Create a two hop router network. Attach a single receiver on one router.
> Create 10 senders on the other router. Each sender should sent a large
> number of (unsettled) messages at a given priority (IOW 10 senders, one
> sender sends priority 0 messages, another sends priority 1 messages, etc).
> If the messages are large enough to trigger Q3 eventually most (all?) of the
> senders will hang stuck waiting for either settlement or deliveries to be
> forwarded. There is no recovery.
> I will post a reproducer soon.
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