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https://issues.apache.org/jira/browse/DISPATCH-927?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16366297#comment-16366297
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Gordon Sim commented on DISPATCH-927:
-------------------------------------
So far I have only been able to reproduce with the activemq artemis broker.
However I suspect this is just a timing issue. The broker does appear to be
behaving correctly.
To reproduce,
(1) start two routers with simple-topic-a.conf and simple-topic-b.conf
e.g.
qdrouterd --conf simple-topic-a.conf
qdrouterd --conf simple-topic-b.conf
(2) start artemis broker on port 5673 with examples topic configure (e.g. see
broker,xml attached)
(3) run two instances of the modified simple_recv example as attached (the
change is that the client waits for the detach to be echoed back before exiting)
e.g.
python simple_recv_modified.py -m 10 &
python simple_recv_modified.py -m 10 &
(4) run simple_send.py example from proton python
e.g.
python simple_send.py -m 10
Sometimes only one of the receivers will exit. If you enable PN_TRACE_FRM you
can see that the detach is never received back from the router.
> detach not echoed back on multi-hop link route
> ----------------------------------------------
>
> Key: DISPATCH-927
> URL: https://issues.apache.org/jira/browse/DISPATCH-927
> Project: Qpid Dispatch
> Issue Type: Bug
> Reporter: Gordon Sim
> Priority: Major
> Attachments: broker.xml, simple-topic-a.conf, simple-topic-b.conf,
> simple_recv_modified.py
>
>
> In a two router network, router-a and router-b, a link route is defined in
> both directions on both routers. There is also an associated connector to a
> broker on router-b. The address is configured to be a topic on the broker.
> If two receivers attach on this address to router-a, and then detach at the
> same time having received the defined number of messages, frequently (but not
> always), one of the receivers will not get a detach echoed back to it.
> On inspection of protocol traces, it appears that router-b, though it gets
> the detach echoed back from the broker, does not forward this back to the
> client (via router-a).
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