"Could it be that multiple processes are writing to the same traceFile? I recommend investigation on this front because reproducing the crash in isolation will probably be necessary to fix it."
Unfortunately no. self.path_to_log points to each execution's own path. I can check the files and they are all empty "what you can try is to enable core dumps in your shell" Thank you, I'm going to try this Sincerely, Marcelo d'Almeida On Tue, Mar 2, 2021 at 6:30 AM Jakob Erdmann <[email protected]> wrote: > Could it be that multiple processes are writing to the same traceFile? > I recommend investigation on this front because reproducing the crash in > isolation will probably be necessary to fix it. > > Am Mo., 1. März 2021 um 22:53 Uhr schrieb Harald Schaefer < > [email protected]>: > >> Hi Marcelo, >> >> what you can try is to enable core dumps in your shell >> >> ulimit -c unlimited >> >> Then run your test series. >> >> The corefile might be very large, depending on your scenario size. >> >> At the end you should have a file named core in your current working >> directory. >> >> You can examine this file by >> >> gdb <path to sumo-bin> core >> >> and type e.g. bt >> >> The stacktrace might help the developers of SUMO >> >> Greetings, Harald >> Am 01.03.21 um 17:22 schrieb Marcelo Andrade Rodrigues D Almeida: >> >> Hi everyone >> >> I running traffic light control experiments in the Bologna (joined) >> scenario and from time to time I encounter an unspecified Fatal error. >> (shown below) >> >> I'm trying to debug it, but: >> - Logging the commands generate blank outputs (even with traceGetters >> enabled) >> >> trace_file_path = ROOT_DIR + '/' + self.path_to_log + '/' + >> 'trace_file_log.txt' >> traci.start(sumo_cmd_str, label=self.execution_name, >> traceFile=trace_file_path, traceGetters=True) >> >> ( >> https://sumo.dlr.de/docs/TraCI/Interfacing_TraCI_from_Python.html#generating_a_log_of_all_traci_commands >> ) >> >> A trivial trace (logging) example works fine though >> >> - Debugging the traci sessions is not viable since I cannot tell when the >> error is going to occur (I have to run the scenario 1600 times total per >> experiment) >> >> ( >> https://sumo.dlr.de/docs/TraCI/Interfacing_TraCI_from_Python.html#debugging_a_traci_session_on_linux >> ) >> >> >> I also updated the sumo to the latest nightly build but no success. >> >> Is there anything I can try? I'm out of options here >> >> Thank you in advance >> >> >> Sincerely, >> >> Marcelo d'Almeida >> >> >> *Error:* >> Process Process-1:22: >> Traceback (most recent call last): >> File "/usr/lib/python3.6/multiprocessing/process.py", line 258, in >> _bootstrap >> self.run() >> File "/usr/lib/python3.6/multiprocessing/process.py", line 93, in run >> self._target(*self._args, **self._kwargs) >> File "traffic-light-optimization/algorithm/frap_pub/pipeline.py", line >> 104, in generator_wrapper >> generator.generate() >> File "traffic-light-optimization/algorithm/frap_pub/generator.py", line >> 121, in generate >> next_state, reward, done, steps_iterated, next_action = >> self.env.step(action_list) >> File "traffic-light-optimization/algorithm/frap_pub/sumo_env.py", line >> 514, in step >> self._inner_step(action) >> File "traffic-light-optimization/algorithm/frap_pub/sumo_env.py", line >> 559, in _inner_step >> traci_connection.simulationStep() >> File "sumo-git/tools/traci/connection.py", line 302, in simulationStep >> result = self._sendCmd(tc.CMD_SIMSTEP, None, None, "D", step) >> File "sumo-git/tools/traci/connection.py", line 180, in _sendCmd >> return self._sendExact() >> File "sumo-git/tools/traci/connection.py", line 90, in _sendExact >> raise FatalTraCIError("connection closed by SUMO") >> traci.exceptions.FatalTraCIError: connection closed by SUMO >> >> _______________________________________________ >> sumo-user mailing [email protected] >> To unsubscribe from this list, visit >> https://www.eclipse.org/mailman/listinfo/sumo-user >> >> _______________________________________________ >> sumo-user mailing list >> [email protected] >> To unsubscribe from this list, visit >> https://www.eclipse.org/mailman/listinfo/sumo-user >> > _______________________________________________ > sumo-user mailing list > [email protected] > To unsubscribe from this list, visit > https://www.eclipse.org/mailman/listinfo/sumo-user >
_______________________________________________ sumo-user mailing list [email protected] To unsubscribe from this list, visit https://www.eclipse.org/mailman/listinfo/sumo-user
