bouk opened a new issue, #36892:
URL: https://github.com/apache/superset/issues/36892
### Bug description
I'm running the alerts and reports celery worker as follows: `celery
--app=superset.tasks.celery_app:app worker --pool=prefork -O fair -c 4`
On every job (e.g. on the minute from the beat) I get an exception in the
logs, as below. I'm not sure it causes any issues.
### Screenshots/recordings
```
Jan 03 17:31:00 celery [2026-01-03 17:31:00,019: ERROR/MainProcess] Signal
handler <function teardown at 0x7f09077da520> raised: RuntimeError('Working
outside of application context.\n\nThis typically means that you attempted to
use functionality that needed\nthe current application. To solve this, set up
an application context\nwith app.app_context(). See the documentation for more
information.')
Jan 03 17:31:00 celery Traceback (most recent call last):
Jan 03 17:31:00 celery File
"/nix/store/8z13kf9snjgs5nwvrvbn8sh4nwngz9vs-superset/lib/python3.12/site-packages/celery/utils/dispatch/signal.py",
line 280, in send
Jan 03 17:31:00 celery response = receiver(signal=self, sender=sender,
**named)
Jan 03 17:31:00 celery
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Jan 03 17:31:00 celery File
"/nix/store/8z13kf9snjgs5nwvrvbn8sh4nwngz9vs-superset/lib/python3.12/site-packages/superset/tasks/celery_app.py",
line 71, in teardown
Jan 03 17:31:00 celery db.session.remove()
Jan 03 17:31:00 celery File
"/nix/store/8z13kf9snjgs5nwvrvbn8sh4nwngz9vs-superset/lib/python3.12/site-packages/sqlalchemy/orm/scoping.py",
line 180, in remove
Jan 03 17:31:00 celery if self.registry.has():
Jan 03 17:31:00 celery ^^^^^^^^^^^^^^^^^^^
Jan 03 17:31:00 celery File
"/nix/store/8z13kf9snjgs5nwvrvbn8sh4nwngz9vs-superset/lib/python3.12/site-packages/sqlalchemy/util/_collections.py",
line 1015, in has
Jan 03 17:31:00 celery return self.scopefunc() in self.registry
Jan 03 17:31:00 celery ^^^^^^^^^^^^^^^^
Jan 03 17:31:00 celery File
"/nix/store/8z13kf9snjgs5nwvrvbn8sh4nwngz9vs-superset/lib/python3.12/site-packages/flask_sqlalchemy/session.py",
line 102, in _app_ctx_id
Jan 03 17:31:00 celery return id(app_ctx._get_current_object()) # type:
ignore[attr-defined]
Jan 03 17:31:00 celery ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Jan 03 17:31:00 celery File
"/nix/store/8z13kf9snjgs5nwvrvbn8sh4nwngz9vs-superset/lib/python3.12/site-packages/werkzeug/local.py",
line 519, in _get_current_object
Jan 03 17:31:00 celery raise RuntimeError(unbound_message) from None
Jan 03 17:31:00 celery RuntimeError: Working outside of application context.
Jan 03 17:31:00 celery This typically means that you attempted to use
functionality that needed
Jan 03 17:31:00 celery the current application. To solve this, set up an
application context
Jan 03 17:31:00 celery with app.app_context(). See the documentation for
more information.
```
### Superset version
6.0.0
### Python version
Not applicable
### Node version
Not applicable
### Browser
Chrome
### Additional context
Python 3.12
### Checklist
- [x] I have searched Superset docs and Slack and didn't find a solution to
my problem.
- [x] I have searched the GitHub issue tracker and didn't find a similar bug
report.
- [x] I have checked Superset's logs for errors and if I found a relevant
Python stacktrace, I included it here as text in the "additional context"
section.
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