LookupError `<ContextVar name='current_scope' default=None at 0x7f88232e1620>`

[DusanMadar]

How do you use Sentry?

Sentry Saas (sentry.io)

Version

2.13.0

Steps to Reproduce

Python 3.10
Django 4.2.20
Gunicorn 23.0.0

sentry_sdk.init(
    dsn=os.getenv("SENTRY_BE_DSN"),
    integrations=[DjangoIntegration(), RedisIntegration()],
    traces_sample_rate=0.0,
    send_default_pii=True,
    environment=os.getenv("APP_NAME"),
    release=os.getenv("COMMIT"),
)

Looks similar to #3724.

Expected Result

Exception is not raised.

Actual Result

Traceback (most recent call last):
  File "/app/.venv/python/lib/python3.10/site-packages/gunicorn/workers/gthread.py", line 346, in handle_request
    respiter.close()
  File "/app/.venv/python/lib/python3.10/site-packages/sentry_sdk/integrations/wsgi.py", line 235, in close
    with use_isolation_scope(self._scope):
  File "/app/.venv/python/lib/python3.10/contextlib.py", line 142, in __exit__
    next(self.gen)
  File "/app/.venv/python/lib/python3.10/site-packages/sentry_sdk/scope.py", line 1678, in use_isolation_scope
    _current_scope.reset(current_token)
LookupError: <ContextVar name='current_scope' default=None at 0x7f88232e1620>

[antonpirker]

Hey @DusanMadar, thanks for writing in.

Can you try to disable the gthread workers in Gunicorn to see if the exception is also raised with the default workers?

[DusanMadar]

Hey @antonpirker, thanks for a quick response.

We'll discuss your proposal with the team. 👍

Interestingly enough we use the same gunicorn setup, i.e. --threads arg and therefore gthread workers, with another Django app and we don't see this error there. However, the other app uses sentry-sdk = "==1.14.*".

[antonpirker]

Hey! One more thing @DusanMadar do you use the propagate_hub or propagate_scope parameter in the ThreadingIntegration?

[antonpirker]

Oh, @DusanMadar and can you try to use Sentry SDK 2.26.1 or preferably the latest version, because we changed something in our ThreadingIntegration. (See https://github.com/getsentry/sentry-python/pull/4281/files)