Camera local_file - getting Bad File Descriptor Error - help needed

Configuration
1

Hi,

I’m getting infrequent erorrs while using the camera.local_file component.

ERROR (MainThread) [homeassistant.components.websocket_api.http.connection.140154635488560] Error handling message: {'type': 'camera_thumbnail', 'entity_id': 'camera.local_file', 'id': 12493}
Traceback (most recent call last):
  File "/usr/src/app/homeassistant/components/websocket_api/decorators.py", line 17, in _handle_async_response
    await func(hass, connection, msg)
  File "/usr/src/app/homeassistant/components/camera/__init__.py", line 463, in websocket_camera_thumbnail
    image = await async_get_image(hass, msg['entity_id'])
  File "/usr/src/app/homeassistant/components/camera/__init__.py", line 93, in async_get_image
    image = await camera.async_camera_image()
  File "/usr/local/lib/python3.6/concurrent/futures/thread.py", line 56, in run
    result = self.fn(*self.args, **self.kwargs)
  File "/usr/src/app/homeassistant/components/camera/local_file.py", line 72, in camera_image
    with open(self._file_path, 'rb') as file:
OSError: [Errno 9] Bad file descriptor

this is my config:

  - platform: local_file
    file_path: /config/tmp/latest.jpg

I’m scanning a camera picture via tensorflow for persons (via a motion trigger), and when a person is detected the picture is beeing saved:

image_processing:
  - platform: tensorflow
    scan_interval: 20000
    source:
      - entity_id: camera.test
    model:
      graph: /config/tensorflow/frozen_inference_graph.pb
      categories:
        - person
    file_out:
      - "/config/tmp/latest.jpg"

Has anyone experienced the same and may point me in the right direction?
I’m running HA in a Docker on my NAS with 2.4Ghz QuadCore and 16MB Ram, performance should not be an issue.

Thanks!

2

Maybe try specifying the full pathname for the file…
That’s what I have for my camera and it works.

3

Thank you for your reply!
It is actually working, the file gets saved and can be read, but from time to time (still elaborating on the root cause) I get the ERROR mentioned above. So I assume the path is correct and accesible from HA.
What I am thinking about right now is that it may be due to simultaneous access
image_processing writes jpg and at the same time camera.local_file tries to load the file…

4

I’ve verified that the paths are accessible and there are no race conditions regarding “tensorflow image processing” causing this.

Related Issue on GitHub
https://github.com/home-assistant/home-assistant/issues/21090