Skip to main content
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [List Home]
Re: [sumo-user] traci.exceptions.FatalTraCIError: connection closed by SUMO

Hi Weronika,

it may be, that Sumo terminates unexpected.

Please build the Debug version and run SUMO with gdb.

If Sumo terminates, the stack trace can help the developers

See https://sumo.dlr.de/docs/Installing/Linux_Build.html#building_the_sumo_binaries_with_cmake and https://sumo.dlr.de/docs/TraCI/Interfacing_TraCI_from_Python.html#debugging_a_traci_session_on_linux

Best regards, Harald

Am 21.08.20 um 18:30 schrieb Weronika:

Hi!

I got a new build of SUMO and I am getting an error traci.exceptions.FatalTraCIError: connection closed by SUMO.  The last time when I ran it and it worked properly was with the build from ~15.06.

(The problem already appeared before when I used the build from 12.07, but I left it as I thought maybe will not occur later.)


Traceback (most recent call last):

  File "runner.py", line 376, in <module>

    run()

  File "runner.py", line 265, in run

    traci.simulationStep()

  File "/Users/weronika/Desktop/sumo/tools/traci/main.py", line 210, in simulationStep

    return _connections[""].simulationStep(step)

  File "/Users/weronika/Desktop/sumo/tools/traci/connection.py", line 291, in simulationStep

    result = self._sendCmd(tc.CMD_SIMSTEP, None, None, "D", step)

  File "/Users/weronika/Desktop/sumo/tools/traci/connection.py", line 178, in _sendCmd

    return self._sendExact()

  File "/Users/weronika/Desktop/sumo/tools/traci/connection.py", line 88, in _sendExact

    raise FatalTraCIError("connection closed by SUMO")

traci.exceptions.FatalTraCIError: connection closed by SUMO



I tried: „>> run your simulation with the option --duration-log.statistics and --log

>> logfile.txt

>> you will find the results in logfile.txt”

When the simulation gets this error the log file is empty.


Worth to mention is that at the beginning of my simulation I set up a number for using randomTrips.py and generate trips file


command = 'python ' + os.environ['SUMO_HOME'] + '/tools/randomTrips.py -n osm.net.xml -p ' + vehiclesDensity +' -o trips.trips.xml '+ '--trip-attributes=\'departLane=\"best\" departSpeed=\"max\" type=\"car\" departPos=\"random\"\' --validate'

os.system(command)


And depending on this argument the simulation fails or not (mostly fails..).


I would appreciate your help on how I can find the problem. I checked the input files and they look fine (and works with earlier versions)


Best,

Weronika



_______________________________________________
sumo-user mailing list
sumo-user@xxxxxxxxxxx
To unsubscribe from this list, visit https://www.eclipse.org/mailman/listinfo/sumo-user

Back to the top