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https://issues.apache.org/jira/browse/DISPATCH-1626?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17089994#comment-17089994
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Ganesh Murthy commented on DISPATCH-1626:
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To reproduce the issue follow these steps
# Start the router with the attached config file (qdrouterd.conf) -
PN_TRACE_FRM=1 qdrouterd -c etc/qdrouterd.conf
# Start the receiver like this - reset; python simple_recv_release.py
--address 0.0.0.0/examples -m500
# Start the sender like this - python simple_send_large.py --address
0.0.0.0/examples -m500
Look at the frame trace on the router. You will see at least one disposition
frame like the following -
[0x61400000ac50]:0 -> @disposition(21) [role=true, first=285,
state=@released(38) []
followed by
[0x61400000ac50]:0 -> @disposition(21) [role=true, first=283, last=285,
settled=true, state=@released(38) []]
> On released callback invoked twice for same delivery tag
> --------------------------------------------------------
>
> Key: DISPATCH-1626
> URL: https://issues.apache.org/jira/browse/DISPATCH-1626
> Project: Qpid Dispatch
> Issue Type: Improvement
> Components: Container
> Affects Versions: 1.11.0
> Reporter: Ganesh Murthy
> Assignee: Ganesh Murthy
> Priority: Major
> Fix For: 1.12.0
>
> Attachments: qdrouterd.conf, simple_recv_release.py,
> simple_send_large.py
>
>
> In a python client application, that is connected to a dispatch router, I
> have observed that the on_released callback was invoked twice for the same
> delivery tag.
> Here are the disposition frames I was able to capture for the respective
> delivery:
> {noformat}
> [0x562a0083ed80]:0 <- @disposition(21) [role=true, first=981,
> state=@released(38) []]
> [0x562a0083ed80]:0 <- @disposition(21) [role=true, first=981, last=982,
> settled=true, state=@released(38) []]{noformat}
> The delivery tag 981 came first without the settlement and next with the
> settled as true. And the on_released was called twice for the 981 delivery
> tag.
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