Hi Matej,
Am 31.03.2016 um 00:31 schrieb Matěj Kubička:
> Hello Michael,
> as advertised I've used your new interface. I had no issues while
> running it on a small scale, but when ran on a cluster a few of the
> computing nodes crashed giving following traceback:
>
> Traceback (most recent call last):
> ....
> File "erb.py", line 93, in simulate
> tad.route.add('probe_route', edges)
> File "simsuite/sumo/tools/traci/_route.py", line 50, in add
> self._connection._sendExact()
> File "simsuite/sumo/tools/traci/connection.py", line 97, in _sendExact
> err = result.readString()
> File "simsuite/sumo/tools/traci/storage.py", line 54, in readString
> return str(self.read("!%ss" % length)[0].decode("latin1"))
> File "simsuite/sumo/tools/traci/storage.py", line 38, in read
> return struct.unpack(format, self._content[oldPos:self._pos])
> struct.error: unpack requires a string argument of length 55363200
>
> If I understand it right Traci server returned malformed/unexpected
> message.
Yes, that is my understanding as well.
> The offending call is tad.route.add(), where tad is Connection()
> instance. I am sorry for not having more information but this bug is
> rare and I do not have the resources (for the moment at least) to re-run
> it all again to tell you what was in the list of edges.
Maybe you can share some of the scenario or code? I probably cannot help
much here otherwise because TraCI bugs are always hard to tackle.
Best regards,
Michael
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