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https://issues.apache.org/jira/browse/QPID-1789?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gordon Sim updated QPID-1789:
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    Priority: Major  (was: Minor)

This causes problems where sessions are continually opened due to 
execution-exceptions occurring even when there is only one active session at 
any time. When the channel allocated 'wraps around' and starts to re-use 
channels that were previously attached, some of them are not correctly detached 
which causes the client to block waiting for an attached response that the 
broker never sends. The broker never sends it because it is still ignoring 
frames other than an expected detached control.

> out of scope sessions incorrectly treated as detached
> -----------------------------------------------------
>
>                 Key: QPID-1789
>                 URL: https://issues.apache.org/jira/browse/QPID-1789
>             Project: Qpid
>          Issue Type: Bug
>          Components: C++ Client
>    Affects Versions: M4
>            Reporter: Gordon Sim
>
> ConnectionImpl treats sessions that have been allowed to go out of scope (and 
> thus have had their implementations deleted) as being detached. The session 
> is not explicitly detached in this case however and the server will believe 
> it to be attached. This would for example prevent reusing that channel for a 
> new session.

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