- Possibly the simulation cannot start in time because the computer is still busy from closing the previous simulations. You could add the option numTries=100 to traci.start() to diagnose this - Possibly, the simulation cannot start successfully because your computer is out of memory (which might indicate a memory leak in sumo).
2018-07-10 16:04 GMT+02:00 胡志强 <[email protected]>: > Hi, > My SUMO version is 0.32.0,and I write a loop to simulate for many times, I > start SUMO like this: > for i in range(20000): > traci.start([sumoBinary, "--start","-c", "data/cross.sumocfg", > "--tripinfo-output", "tripinfo.xml"]) > ... > ... > traci.close() > At the beginning,it works well,but it may disconnect with traci and the > time points is different.I don't know what's wrong. > > Menno van der Woude <[email protected]> 于2018年7月10日周二 下午9:32写道： > >> Hi Zhiqiang, >> >> it could be helpful if you provide some more details: >> Under what circumstances does the connection fail? Do the circumstances >> during failure differ from before? Does it disconnect while it is >> connected, or not connect at all? Etc. >> Also, how are you starting SUMO, manually, programmatically? Etc. >> >> Greets, Menno >> >> On 10-7-2018 15:27, 胡志强 wrote: >> > At the beginning ,it works well,but some time later,it may disconnect >> > with the sever.So ,what's the possible reasons? >> > >> > Best regards, >> > Zhiqiang >> > >> > >> > >> > Menno van der Woude <[email protected] >> > <mailto:[email protected]>> 于2018年7月10日周二 下午8:44写道： >> > >> > Hi Zhiqiang, >> > >> > it seems like SUMO is not running, since the the client cannot >> connect >> > to the TCP server. Make sure you start SUMO with the --remote-port >> > <INT> >> > option as described here: http://sumo.dlr.de/wiki/TraCI# >> SUMO_startup. >> > >> > If you need to simulate many runs, you will have to automate >> starting >> > SUMO as well. >> > >> > Greets, >> > >> > Menno >> > >> > On 10-7-2018 14:34, 胡志强 wrote: >> > > Dear sumo-users: >> > > I am doing a traffic light program to optimize the >> > timing of >> > > traffic light by using Traci.But I met a problem,I need to >> > simulate the >> > > process again and again,then,I got this error: >> > > >> > > Could not connect to TraCI server at localhost:55141 [Errno 111] >> > > Connection refused >> > > Retrying in 2 seconds >> > > Could not connect to TraCI server at localhost:55141 [Errno 111] >> > > Connection refused >> > > Retrying in 3 seconds >> > > Could not connect to TraCI server at localhost:55141 [Errno 111] >> > > Connection refused >> > > Retrying in 4 seconds >> > > Could not connect to TraCI server at localhost:55141 [Errno 111] >> > > Connection refused >> > > Retrying in 5 seconds >> > > Could not connect to TraCI server at localhost:55141 [Errno 111] >> > > Connection refused >> > > Retrying in 6 seconds >> > > Could not connect to TraCI server at localhost:55141 [Errno 111] >> > > Connection refused >> > > Retrying in 7 seconds >> > > Could not connect to TraCI server at localhost:55141 [Errno 111] >> > > Connection refused >> > > Retrying in 8 seconds >> > > Could not connect to TraCI server at localhost:55141 [Errno 111] >> > > Connection refused >> > > Retrying in 9 seconds >> > > Could not connect to TraCI server at localhost:55141 [Errno 111] >> > > Connection refused >> > > Retrying in 10 seconds >> > > Could not connect to TraCI server at localhost:55141 [Errno 111] >> > > Connection refused >> > > Traceback (most recent call last): >> > > File "main.py", line 78, in <module> >> > > train(RL_natural) >> > > File "main.py", line 26, in train >> > > observation = env.reset() >> > > File >> > > >> > "/home/huzhiqiang/traffic-signal-control/traci_tls_PER_ >> 8s_lr0.00025/trafficlight_env.py", >> > >> > > line 110, in reset >> > > "--tripinfo-output", "tripinfo.xml"]) >> > > File "/home/huzhiqiang/sumo/tools/traci/__init__.py", line >> 86, >> > in start >> > > _connections[label] = connect(port, numRetries, "localhost", >> > > sumoProcess) >> > > File "/home/huzhiqiang/sumo/tools/traci/__init__.py", line >> 64, >> > in connect >> > > raise FatalTraCIError("Could not connect in %s tries" % >> > (numRetries >> > > + 1)) >> > > traci.exceptions.FatalTraCIError: Could not connect in 11 tries >> > > >> > > How can I fix it? >> > > >> > > Best regards, >> > > Zhiqiang >> > > >> > > >> > > >> > > _______________________________________________ >> > > sumo-user mailing list >> > > [email protected] <mailto:[email protected]> >> > > To change your delivery options, retrieve your password, or >> > unsubscribe from this list, visit >> > > https://dev.eclipse.org/mailman/listinfo/sumo-user >> > > >> > _______________________________________________ >> > sumo-user mailing list >> > [email protected] <mailto:[email protected]> >> > To change your delivery options, retrieve your password, or >> > unsubscribe from this list, visit >> > https://dev.eclipse.org/mailman/listinfo/sumo-user >> > >> > >> > >> > _______________________________________________ >> > sumo-user mailing list >> > [email protected] >> > To change your delivery options, retrieve your password, or unsubscribe >> from this list, visit >> > https://dev.eclipse.org/mailman/listinfo/sumo-user >> > >> _______________________________________________ >> sumo-user mailing list >> [email protected] >> To change your delivery options, retrieve your password, or unsubscribe >> from this list, visit >> https://dev.eclipse.org/mailman/listinfo/sumo-user >> > > _______________________________________________ > sumo-user mailing list > [email protected] > To change your delivery options, retrieve your password, or unsubscribe > from this list, visit > https://dev.eclipse.org/mailman/listinfo/sumo-user > >
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