Reconnection issue, zwave_js_server not ready?

[aneisch]

I'm having a hard time tracking down the actual cause of this issue but I figured I would post my logs as it may be obvious to someone else.

I can reproduce this by restarting my zwavejs2mqtt container or rebooting my system. If HA attempts to connect to the zwavejs websocket before it's fully ready I will get this error and HA will refuse to attempt a reconnection.

2021-02-05 10:07:06 WARNING (MainThread) [homeassistant.config_entries] Config entry 'Z-Wave JS' for zwave_js integration not ready yet. Retrying in 5 seconds
2021-02-05 10:07:11 ERROR (MainThread) [homeassistant.config_entries] Error setting up entry Z-Wave JS for zwave_js
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/config_entries.py", line 239, in async_setup
    result = await component.async_setup_entry(hass, self)  # type: ignore
  File "/usr/src/homeassistant/homeassistant/components/zwave_js/__init__.py", line 182, in async_setup_entry
    await client.connect()
  File "/usr/local/lib/python3.8/site-packages/zwave_js_server/client.py", line 81, in connect
    await self._client.receive_json()
  File "/usr/local/lib/python3.8/site-packages/aiohttp/client_ws.py", line 291, in receive_json
    data = await self.receive_str(timeout=timeout)
  File "/usr/local/lib/python3.8/site-packages/aiohttp/client_ws.py", line 276, in receive_str
    raise TypeError(f"Received message {msg.type}:{msg.data!r} is not str")
TypeError: Received message 257:None is not str

Perhaps we just need to backoff and retry if we don't receive the expected json (what I think is happening here)?

[shyne99]

Hello
I can reproduce this as well. And it happens sometimes even if zwavejs2mqtt is running fine. Maybe once a week.
Only solution is to restart core.

[shyne99]

Seems to be on investigation in Hassio side :
home-assistant/core#46180

[aneisch]

Expected to be resolved in #109.