Hello, there is currently no know issue that would cause your subscription to fail, hence I'd like to investigate this as a possible bug. Could you provide a small example (scenario files + traci script) to replicate your problem? Instead of your traci script you can also provide a traceFile: https://sumo.dlr.de/docs/TraCI/Interfacing_TraCI_from_Python.html#generating_a_log_of_all_traci_commands
regards, Jakob Am Do., 30. Juni 2022 um 17:01 Uhr schrieb George Li <[email protected] >: > Hello, > > I am writing this email to ask about an error I encountered in using > traci. I developed on Ubuntu 20.0 with SUMO 1.8.0. > > In one of my projects, I intended to develop an adaptive traffic signal > controller and use traci.junction.subscribeContext as below: > > traci.junction.subscribeContext(tlid, > traci.constants.CMD_GET_VEHICLE_VARIABLE, self.detect_radius, > [traci.constants.VAR_LANEPOSITION, > traci.constants.VAR_SPEED, > traci.constants.VAR_LANE_ID, > traci.constants.VAR_ROAD_ID]) > > When I run the whole project and the program executes the > traci.simulationStep() later, the sumo would encounter an error "Error: > tcpip::Socket::recvAndCheck @ recv: peer shutdown". But if I comment out > the traci.junction.subscribeContext, the traci.simulationStep() can be > executed properly. > > Also, if I run a separate python file to solely run sumo simulation with > traci.junction.subcribeContext and traci.simulationStep under the same sumo > configure file and the same environment, the code can be executed without > any errors. > > In this case, I am wondering if there were any possible causes that can > influence traci.junction.subscribeConext and traci.simulationStep() under a > certain condition? Or under what circumstances can traci.simulationStep() > be interrupted by traci.junction.subscribeConext? > > I really appreciate your help. Thank you for your time. > > Best regards, > George > > _______________________________________________ > sumo-user mailing list > [email protected] > To unsubscribe from this list, visit > https://www.eclipse.org/mailman/listinfo/sumo-user >
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