Lorenz Quack created QPID-7463: ---------------------------------- Summary: [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-1.36.0
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)}}. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@qpid.apache.org For additional commands, e-mail: dev-h...@qpid.apache.org