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https://issues.apache.org/jira/browse/DISPATCH-1463?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16960036#comment-16960036
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ASF GitHub Bot commented on DISPATCH-1463:
------------------------------------------

ted-ross commented on issue #600: DISPATCH-1463 - Add detection for stuck 
deliveries
URL: https://github.com/apache/qpid-dispatch/pull/600#issuecomment-546496447
 
 
   No tests have been added yet.  I'll update the PR with tests when they're 
ready.
 
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> Detect deliveries that are stuck in the router for a long time
> --------------------------------------------------------------
>
>                 Key: DISPATCH-1463
>                 URL: https://issues.apache.org/jira/browse/DISPATCH-1463
>             Project: Qpid Dispatch
>          Issue Type: New Feature
>          Components: Router Node
>            Reporter: Ted Ross
>            Assignee: Ted Ross
>            Priority: Major
>             Fix For: 1.10.0
>
>
> The delayed-delivery counts are limited in that they only count deliveries 
> that have been settled.  These counters do not count deliveries that are 
> currently "stuck" and have not been settled.
> This feature provides visibility into the number of stuck deliveries per link 
> and per router.
> A new counter "deliveriesStuck" shall be added to the link and router 
> entities for per-link and aggregated-per-router respectively.
> A delivery is considered "stuck" when it has been in the undelivered or 
> unsettled lists for more than ten seconds and is still not settled.  Once a 
> stuck delivery is settled or otherwise removed, it is no longer considered 
> stuck.
> When a link transitions from zero to one stuck delivery, an INFO log message 
> shall be emitted indicating that at least one delivery is stuck on that link.



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