Speedtest hangs up

[cornflakes]

I've tried to use this app on a couple of devices, one RaspberryPi 3b+ 2015 and two different RaspberryPi 3b+ 2017 all of them stalls after a little while with only 4ish measurements with mqtt, influxdb, connector and dashboard running, speedtest is also status running, but it does not make any measurements and terminal does not work.

I can get it up and running again by either restarting the devices or sometimes the speedtest service.

[cornflakes]

[phil-d-wilson]

Hey @cornflakes - I'm not seeing this with a Pi4. I'll deploy it to a 3B+ and see if I can recreate.

[phil-d-wilson]

@cornflakes - I can't recreate so far. I'll leave it running, but so far it's running fine on a 3B+:

[phil-d-wilson]

I've upped the frequency, and it's happily banging out test scores. I'm not sure how to recreate this.

[cornflakes]

I'll try using a clean version of the application and see if that does anything...

[cornflakes]

I still have problems...

This is from a completely fresh deploy done with the "Deploy with balena"-button Only setting changed was the interval set to 1200 instead of 3600

[cornflakes]

I've found something inspecting the logs of the speedtest container.

It seems the python script isn't very resilient towards errors:

Traceback (most recent call last):
  File "speedtest.py", line 35, in <module>
    result = speedtest.test()
  File "speedtest.py", line 18, in test
    print ("Timestamp = " + str(result['timestamp']))
KeyError: 'timestamp'
[2021-02-10 17:49:57.541] [error] Trying to get interface information on non-initialized socket.
[2021-02-10 17:50:13.070] [error] Configuration - Couldn't resolve host name (HostNotFoundException)
[2021-02-10 17:50:13.072] [error] Configuration - Cannot retrieve configuration document (0)
[2021-02-10 17:50:13.073] [error] ConfigurationError - Could not retrieve or read configuration (Configuration)
[2021-02-10 17:50:13.074] [error] ConfigurationError - Could not retrieve or read configuration (Configuration)
{"type":"log","timestamp":"2021-02-10T17:50:13Z","message":"Configuration - Could not retrieve or read configuration (ConfigurationError)","level":"error"}
Traceback (most recent call last):
  File "speedtest.py", line 35, in <module>
    result = speedtest.test()
  File "speedtest.py", line 17, in test
    result = json.loads(response[0])
  File "/usr/local/lib/python3.7/json/__init__.py", line 348, in loads
    return _default_decoder.decode(s)
  File "/usr/local/lib/python3.7/json/decoder.py", line 337, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "/usr/local/lib/python3.7/json/decoder.py", line 355, in raw_decode
    raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)
[2021-02-10 17:50:30.941] [error] Trying to get interface information on non-initialized socket.

So the error could indicate that I lose my connection to the internet sometimes...

[cornflakes]

I've tried using a poor mans try/except around the test and haven't had any issues so far (looking at 10+ readings)

I think the answer here would be better error handling.

[phil-d-wilson]

@cornflakes great! Feel free to PR any features, improvements, fixes you come up with!