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https://issues.apache.org/jira/browse/PROTON-2033?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16829560#comment-16829560
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Andrew Stitcher commented on PROTON-2033:
-----------------------------------------
{quote} Is there an explanation for why the client response to the
receiver.close() is so slow compared to 0.27.x?
{quote}
Not specifically, but there is a lot more python code being run now as all the
IO is done in python, so that could well make this slower. On the other hand
the python binding overall doesn't benchmark much differently from before.
> qpid-proton changes 0.27.x to master(9ff0a) break qpid-dispatch self test
> -------------------------------------------------------------------------
>
> Key: PROTON-2033
> URL: https://issues.apache.org/jira/browse/PROTON-2033
> Project: Qpid Proton
> Issue Type: Bug
> Components: proton-c, python-binding
> Affects Versions: proton-c-0.28.0
> Environment: Fedora 29, python 3.7, proton and dispatch debug builds
> Reporter: Chuck Rolke
> Assignee: Andrew Stitcher
> Priority: Major
>
> While cleaning up qpid-dispatch for a 1.6 follow-on release an intermittent
> failure in one of the tests was exposed. Analysis of the failure is in
> https://issues.apache.org/jira/browse/DISPATCH-1322 in an attached text
> document
> https://issues.apache.org/jira/secure/attachment/12965891/DISPATCH-1322-analysis.txt
> Another part of the cleanup was fixing the failing test to better report what
> went wrong. See https://issues.apache.org/jira/browse/DISPATCH-1318
> These issues happened using qpid-proton master @9ff0a. Temporarily the
> qpid-proton version was reverted to branch 0.27.x @560ba. Using proton 0.27.x
> branch the qpid-dispatch self test does not fail. It passed several thousand
> times in a loop. Moving proton back to the master branch brought the dispatch
> failures back.
> From the qpid-dispatch perspective this issue is serious. If a receiver
> detaches a link while a sender is sending to it then the sender may lose a
> disposition.
> No attempt yet has been made to bisect proton to see where the different
> behavior starts showing up. That may be the next best avenue of research.
> Another theory for the error is that qpid-dispatch has been mishandling links
> all along.
> To help expose the problem one may clone
> [https://github.com/ChugR/qpid-dispatch] , or add it as a remote, and then
> check out branch DISPATCH-1318-cwip. Test system_tests_edge_router has been
> gutted to run only test_12 in a loop and to print details of the error(s).
> {{ cd build}}
> {{ make}}
> {{ ctest -VV -R edge}}
>
>
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