Jan David Mol created QPID-6402:
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Summary: python: freeze on session.close() if an exception was
raised in session.receiver()
Key: QPID-6402
URL: https://issues.apache.org/jira/browse/QPID-6402
Project: Qpid
Issue Type: Bug
Components: Python Client
Affects Versions: 0.30
Environment: Ubuntu 10.04 (python 2.6.5) and 12.04 (python 2.7.3).
QPID is compiled from source on both platforms, with proton 0.8.
Reporter: Jan David Mol
If a receiver is created but causes an error (no such queue, malformed address,
etc), the session.close() can freeze in certain circumstances. Example code:
class Foo:
def __init__(self):
self.conn = m.Connection("127.0.0.1")
self.conn.open()
self.session = self.c.session()
try:
self.r = self.s.receiver("sdklfdsdls")
except:
print "no such queue"
def __del__(self):
self.session.close()
f = Foo()
The above sequence does not stall if the code is simply put in a function (or
__del__ is merged into __init__).
Note that providing session.close() with a timeout prevents the freeze, but of
course can cause data loss if the stall was legit.
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