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()
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
> > >
> > >
> > >
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