Hi all
I'm trying parse protobuf messages subscribed from a zeromq feed using
Python. Intermittently when I parse the message string, my script crashes
with the following error
File "ale-feed-location-reader.py", line 37, in <module>
aleEvent.ParseFromString(recvMsg)
File "/usr/lib/python2.7/dist-packages/google/protobuf/message.py", line
182, in ParseFromString
self.MergeFromString(serialized)
File
"/usr/lib/python2.7/dist-packages/google/protobuf/internal/python_message.py",
line 798, in MergeFromString
raise message_mod.DecodeError('Unexpected end-group tag.')
google.protobuf.message.DecodeError: Unexpected end-group tag.
My script looks like the following, seems fairly simple enough. Has anyone
seen this before, and how would you fix this? My guess is that it is not
any corruption on the message from the zmq server, as a vendor provided c++
compiled program is able to parse the messages without any problem.
----------snip----------
# Socket to talk to server
context = zmq.Context()
clientSock = context.socket(zmq.SUB)
clientSock.connect ("tcp://%s:%s" % (serverAddr, serverPort))
print('Connected to {0} at port {1}'.format(serverAddr, serverPort))
topicfilter = ""
clientSock.setsockopt(zmq.SUBSCRIBE, topicfilter)
while(1):
# Receive Message
recvMsg = ''.join(clientSock.recv_multipart())
# Parse Message
aleEvent = schema_pb2.nb_event()
aleEvent.ParseFromString(recvMsg)
if aleEvent.IsInitialized():
time = datetime.datetime.fromtimestamp(aleEvent.timestamp)
----------snip----------
Thanks for any insight!
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