Unhandled exception when internet goes down (traceback provided)

[mrand]

Home Assistant release with the issue:
0.102.2

Last working Home Assistant release (if known):
n/a

Operating environment (Hass.io/Docker/Windows/etc.):

Hass.io on Ubuntu 16.04

Integration:

homeassistant.core

Description of problem:

Unhandled exception generates the below traceback when internet goes down

Problem-relevant configuration.yaml entries and (fill out even if it seems unimportant):

Traceback (if applicable):

2019-11-29 00:58:56 ERROR (MainThread) [homeassistant.core] Error doing job: Task exception was never retrieved
Traceback (most recent call last):
  File "/usr/local/lib/python3.7/site-packages/aiohttp/connector.py", line 830, in _resolve_host
    self._resolver.resolve(host, port, family=self._family)
  File "/usr/local/lib/python3.7/site-packages/aiohttp/resolver.py", line 30, in resolve
    host, port, type=socket.SOCK_STREAM, family=family)
  File "/usr/local/lib/python3.7/asyncio/base_events.py", line 784, in getaddrinfo
    None, getaddr_func, host, port, family, type, proto, flags)
  File "/usr/local/lib/python3.7/concurrent/futures/thread.py", line 57, in run
    result = self.fn(*self.args, **self.kwargs)
  File "/usr/local/lib/python3.7/socket.py", line 748, in getaddrinfo
    for res in _socket.getaddrinfo(host, port, family, type, proto, flags):
socket.gaierror: [Errno -3] Try again
2019-11-29 00:58:57 WARNING (MainThread) [hass_nabucasa.iot] Unable to connect: Cannot connect to host cloud.nabucasa.com:443 ssl:None [Try again]

Additional information:

[frenck]

To be honest, this is kinda expected, since well, the internet is down 🤷‍♂

[probot-home-assistant]

Hey there @home-assistant/cloud, mind taking a look at this issue as its been labeled with a integration (cloud) you are listed as a codeowner for? Thanks!

[bullmoose20]

I am seeing the same error and as far as I can tell.... the internet is up right now as I write this. Can this happen when specific sites become unavailable?

[balloob]

it's expected to not work, but it shouldn't print a stacktrace. We should be able to process the exception properly. This is an issue in hass_nabucasa package so I have opened an issue for it there NabuCasa/hass-nabucasa#129