[jira] [Created] (PROTON-2117) qdrouterd is getting delivery updates out of order

["Ken Giusti (Jira)" <ji...@apache.org>]

Ken Giusti created PROTON-2117:
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             Summary: qdrouterd is getting delivery updates out of order
                 Key: PROTON-2117
                 URL: https://issues.apache.org/jira/browse/PROTON-2117
             Project: Qpid Proton
          Issue Type: Bug
          Components: proton-c
    Affects Versions: proton-c-0.29.0
            Reporter: Ken Giusti


See [DISPATCH-1336|https://issues.apache.org/jira/browse/DISPATCH-1336]

We noticed a strange behavior while testing qpid-dispatch-router.  It appears as if delivery updates are being re-ordered by Proton.

We have a single sender/receiver pair.  The sender sends unsettled messages asynchronously as long as it has credit.  The receiver accepts each message as it arrives.   Both these clients are proton-c/reactor based.

On qdrouterd we observe that the incoming delivery updates are being pulled from the epoll driver in a different sequence than the client has updated them.

This isn't illegal from the AMQP 1.0 standpoint, but it would be good to know that this behavior is understood.



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