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https://issues.apache.org/jira/browse/PROTON-1465?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Robbie Gemmell closed PROTON-1465.
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Resolution: Not A Problem
The broker is explicitly closing the AMQP connection with an error, and the
client appears to be throwing a ConnectionClosed exception to that effect,
which from your description I guess you are not catching, leading the
interpreter to exit.
The logs you just pasted show other connections (MQTT, not AMQP) ending at the
same time, perhaps suggesting a more general issue, and the logs includes
"'Unexpected error occurred: java.lang.OutOfMemoryError: GC overhead limit
exceeded')", suggesting you want to look at your brokers memory config.
Since there isn't any evidence of a client issue that I can see as yet, and
plenty of a broker [config] issue, closing this JIRA out for now.
> amqp:decode-error Could not process AMQP commands
> -------------------------------------------------
>
> Key: PROTON-1465
> URL: https://issues.apache.org/jira/browse/PROTON-1465
> Project: Qpid Proton
> Issue Type: Bug
> Components: python-binding
> Affects Versions: 0.17.0
> Environment: Ubuntu 14.04
> Reporter: Nico Maas
>
> I use Qpid in Python to send files and do it this way:
> {code}
> from __future__ import print_function, unicode_literals
> # qpid-proton
> from proton import Message
> from proton.utils import BlockingConnection
> from proton.handlers import IncomingMessageHandler
> activemq_channel = ""
> activemq_connection = ""
> activemq_session = ""
> activemq_sender = ""
> def mq_connect(ip, username, password):
> global activemq_channel
> global activemq_connection
> global activemq_session
> global activemq_sender
> activemq_connection = BlockingConnection(username + ":" + password + "@" +
> ip + ":5672")
> activemq_sender = activemq_connection.create_sender("file")
> def mq_send(data):
> global activemq_sender
> #activemq_sender.send(Message(bytearray(data)))
> activemq_sender.send(Message(durable=True,body=data))
> def mq_close():
> global activemq_connection
> activemq_connection.close()
> mq_connect(server_ip,'admin','admin')
> for i in file_list:
> data = open(i, 'rb')
> mq_send(data.read())
> data.close()
> mq_close.close()
> {code}
> Sadly I could not send the files as bytearrays as I normally do.. but it
> should work (Is there any better way to send binary files via proton?).
> However, on random, following problem arises:
> {code}
> Traceback (most recent call last):
> File "./send_activemq.py", line 323, in <module>
> mq_send(data.read())
> File "./send_activemq.py", line 271, in mq_send
> activemq_sender.send(Message(body=data))
> File "/usr/local/lib/python2.7/dist-packages/proton/utils.py", line 78, in
> send
> self.connection.wait(lambda: _is_settled(delivery), msg="Sending on
> sender %s" % self.link.name, timeout=timeout)
> File "/usr/local/lib/python2.7/dist-packages/proton/utils.py", line 267, in
> wait
> self.container.process()
> File "/usr/local/lib/python2.7/dist-packages/proton/reactor.py", line 159,
> in process
> self._check_errors()
> File "/usr/local/lib/python2.7/dist-packages/proton/reactor.py", line 155,
> in _check_errors
> _compat.raise_(exc, value, tb)
> File "/usr/local/lib/python2.7/dist-packages/proton/__init__.py", line
> 4050, in dispatch
> ev.dispatch(self.handler)
> File "/usr/local/lib/python2.7/dist-packages/proton/__init__.py", line
> 3959, in dispatch
> result = dispatch(handler, type.method, self)
> File "/usr/local/lib/python2.7/dist-packages/proton/__init__.py", line
> 3837, in dispatch
> return m(*args)
> File "/usr/local/lib/python2.7/dist-packages/proton/utils.py", line 289, in
> on_connection_remote_close
> raise ConnectionClosed(event.connection)
> proton.utils.ConnectionClosed: Connection x closed due to:
> Condition('amqp:decode-error', 'Could not process AMQP commands')
> {code}
> ActiveMQ tells me following:
> {code}
> WARN | Transport Connection to: tcp://x:59158 failed:
> org.apache.activemq.transport.amqp.AmqpProtocolException: Could not process
> AMQP commands
> WARN | Transport Connection to: tcp://x:55804 failed: java.io.EOFException
> {code}
> However, it always happens at random - without any clue on the file, size or
> time..
> What can I do? Python crashes at this point... So it is a blocker for me.
> Thanks a lot for your help.
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