IKEA Tradfri massive log filling

[Padparadscha]

The problem

I get HA crashed every day since a few days. Logfile gets over 20GB per day
errors like this
2025-06-05 19:10:40.970 ERROR (MainThread) [homeassistant.components.tradfri] Unexpected error fetching Update coordinator for <65558 - Decke 3 (TRADFRI bulb GU10 WS 400lm)> data
Traceback (most recent call last):
File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 380, in _async_refresh
self.data = await self._async_update_data()
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/src/homeassistant/homeassistant/components/tradfri/coordinator.py", line 88, in _async_update_data
cmd = self.device.observe(
callback=self._observe_update,
err_callback=self._exception_callback,
duration=0,
)
File "/usr/local/lib/python3.13/site-packages/pytradfri/resource.py", line 66, in observe
self.path,
^^^^^^^^^
File "/usr/local/lib/python3.13/site-packages/pytradfri/device/init.py", line 57, in path
return [ROOT_DEVICES, self.id]
^^^^^^^
File "/usr/local/lib/python3.13/site-packages/pytradfri/resource.py", line 26, in id
return cast(Union[str, None], self.raw.get(ATTR_ID))
^^^^^^^^^^^^
AttributeError: 'NoneType' object has no attribute 'get'

What version of Home Assistant Core has the issue?

2025.3

What was the last working version of Home Assistant Core?

No response

What type of installation are you running?

Home Assistant OS

Integration causing the issue

Tradfri

Link to integration documentation on our website

https://www.home-assistant.io/integrations/tradfri

Diagnostics information

home-assistant_tradfri_2025-06-05T17-11-57.238Z.log

Example YAML snippet

Anything in the logs that might be useful for us?

Additional information

No response

[home-assistant]

tradfri documentation
tradfri source

[Padparadscha]

reconfigured the integration. now it works again

[seife]

I am getting this still with 2025.7.4. It starts with this in the log:

2025-07-29 00:18:25.977 ERROR (MainThread) [homeassistant.components.tradfri] Keep-alive failed
2025-07-29 00:19:25.777 ERROR (MainThread) [homeassistant.components.tradfri] Unexpected error fetching Update coordinator for <65538 
- TRADFRI bulb (TRADFRI bulb E14 WS opal 600lm)> data
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 382, in _async_refresh
    self.data = await self._async_update_data()
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/components/tradfri/coordinator.py", line 93, in _async_update_data
    await self.api(cmd)
  File "/usr/local/lib/python3.13/site-packages/pytradfri/api/aiocoap_api.py", line 199, in request
    result = await self._execute(api_commands, timeout)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.13/site-packages/pytradfri/api/aiocoap_api.py", line 137, in _execute
    await self._observe(api_command, timeout)
  File "/usr/local/lib/python3.13/site-packages/pytradfri/api/aiocoap_api.py", line 220, in _observe
    api_command.result = _process_output(pr_rsp)
    ^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.13/site-packages/pytradfri/command.py", line 91, in result
    self._result = self._process_result(value)
                   ~~~~~~~~~~~~~~~~~~~~^^^^^^^
  File "/usr/local/lib/python3.13/site-packages/pytradfri/resource.py", line 62, in observe_callback
    callback(self)
    ~~~~~~~~^^^^^^
  File "/usr/src/homeassistant/homeassistant/components/tradfri/coordinator.py", line 57, in _observe_update
    self.async_set_updated_data(data=device)
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 517, in async_set_updated_data
    self.async_update_listeners()
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
  File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 180, in async_update_listeners
    update_callback()
    ~~~~~~~~~~~~~~~^^
  File "/usr/src/homeassistant/homeassistant/components/tradfri/entity.py", line 81, in _handle_coordinator_update
    self._refresh()
    ~~~~~~~~~~~~~^^
  File "/usr/src/homeassistant/homeassistant/components/tradfri/light.py", line 103, in _refresh
    self._device_data = self.coordinator.data.light_control.lights[0]
                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.13/site-packages/pytradfri/device/__init__.py", line 84, in light_control
    return LightControl(self)
  File "/usr/local/lib/python3.13/site-packages/pytradfri/device/light_control.py", line 40, in __init__
    if ATTR_LIGHT_DIMMER in self.raw[0]:
                            ^^^^^^^^
  File "/usr/local/lib/python3.13/site-packages/pytradfri/device/light_control.py", line 71, in raw
    return self._device.raw[ATTR_LIGHT_CONTROL]
           ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^
TypeError: 'NoneType' object is not subscriptable
2025-07-29 00:19:25.866 ERROR (MainThread) [homeassistant.components.tradfri] Unexpected error fetching Update coordinator for <65555 
- Ein-/Ausschalter/Dimmer 1 (TRADFRI on/off switch)> data
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 382, in _async_refresh
    self.data = await self._async_update_data()
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/components/tradfri/coordinator.py", line 93, in _async_update_data
    await self.api(cmd)
  File "/usr/local/lib/python3.13/site-packages/pytradfri/api/aiocoap_api.py", line 199, in request
    result = await self._execute(api_commands, timeout)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.13/site-packages/pytradfri/api/aiocoap_api.py", line 137, in _execute
    await self._observe(api_command, timeout)
  File "/usr/local/lib/python3.13/site-packages/pytradfri/api/aiocoap_api.py", line 220, in _observe
    api_command.result = _process_output(pr_rsp)
    ^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.13/site-packages/pytradfri/command.py", line 91, in result
    self._result = self._process_result(value)
                   ~~~~~~~~~~~~~~~~~~~~^^^^^^^
...

(error repeats for all TRADFRI components)
And then it repeats every minute

A bit later, this appears for all components:

2025-07-29 00:21:52.757 ERROR (MainThread) [homeassistant.components.tradfri] Unexpected error fetching Update coordinator for <65538 
- TRADFRI bulb (TRADFRI bulb E14 WS opal 600lm)> data
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 382, in _async_refresh
    self.data = await self._async_update_data()AttributeError: 'NoneType' object has no attribute 'get'
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/src/homeassistant/homeassistant/components/tradfri/coordinator.py", line 82, in _async_update_data
    raise exc
  File "/usr/local/lib/python3.13/site-packages/aiocoap/protocol.py", line 977, in _run_observation
    async for block1_notification in lower_observation:
    ...<5 lines>...
        weak_observation().callback(full_notification)
  File "/usr/local/lib/python3.13/site-packages/aiocoap/protocol.py", line 1097, in __anext__
    result = await self._future
             ^^^^^^^^^^^^^^^^^^
aiocoap.error.ConRetransmitsExceeded: Network error: ConRetransmitsExceeded

followed by

2025-07-29 00:21:52.769 ERROR (MainThread) [homeassistant.components.tradfri] Keep-alive failed
2025-07-29 00:21:52.769 ERROR (MainThread) [homeassistant.components.tradfri] Keep-alive failed

From now on, a continuous stream of AttributeError: 'NoneType' object has no attribute 'get' for all TRADFRI components is logged without pause, until I go to the "Settings -> Integrations -> TRADFR -> IP" in the GUI and click "reload"

So looking at the "Network error: ConRetransmitsExceeded" it might be a temporary network problem, but it looks like the Tradfri integration's error handling in that case might not be perfect.

[seife]

I have power-cycled the Tradfri gateway yesterday and the issue did not reappear (yet).
This caused one last "ConRetransmitsExceeded" for each device, then twice "Keep-alive failed", and no additional messages since then. Devices are working.

Still, a more graceful error handling with less log-spamming, even in the case of misbehaving gateway would be a welcome feature ;-)

[Nickxsch]

I'm afraid that unless anyone with the skill to update this code does so, we'll have to deal with these tiny issues.
I might look into it (without skill) if I ever have time...

[issue-triage-workflows]

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