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https://issues.apache.org/jira/browse/QPID-7463?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Justin Ross updated QPID-7463:
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Fix Version/s: (was: qpid-python-1.36.0)
qpid-python-1.37.0
> [Python Client for AMQP 0-8,0-9] Race condition when creating session
> ---------------------------------------------------------------------
>
> Key: QPID-7463
> URL: https://issues.apache.org/jira/browse/QPID-7463
> Project: Qpid
> Issue Type: Bug
> Components: Python Client
> Affects Versions: qpid-python-1.35.0
> Reporter: Lorenz Quack
> Fix For: qpid-python-1.37.0
>
>
> It seems that {{Client.session()}} is not thread safe. There seems to be a
> race condition that means two concurrent calls can actually share the same
> underlying session.
> {{Client.session()}} acquires {{self.lock}} and determines a free session id.
> It then releases the lock before calling {{self.channel(id)}} which acquires
> the lock again and allocates the id and creates the session.
> If a second call to {{Client.session()}} happens in the moment the lock is
> released but before {{self.channel(id)}} reacquires it the second call will
> find the same free {{id}} and will then subsequently return the same session
> object from {{self.channel(id)}}.
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