Django async boundaries causing loss of Spans

[landenai]

How do you use Sentry?

Sentry Saas (sentry.io)

Version

2.33

Steps to Reproduce

pseudocode for the task of interest:

async def do_some_async_work():
    with sentry_sdk.start_span():  # nothing in here is being recorded right
        await baz()

    await sync_to_async(django_orm_call)(). # another complication


@shared_task
def foo_celery_task():
    with sentry_sdk.start_span():  # recorded correctly
        do_some_work()

    sync_to_async(do_some_async_work)() # not recorded

Expected Result

The spans are not seen in Sentry

Actual Result

The spans are seen in Sentry

[linear]

PY-1852 Django async boundaries causing loss of Spans

[landenai]

Follow up questions:

• django version
• asgiref version
• how are you running the asgi app (uvicorn, daphne etc)?

[sentrivana]

Hey @landenai, their sentry_sdk.init() would also be helpful here, to see which integrations are involved. Is the AsyncioIntegration() enabled?

[alexander-alderman-webb]

Hi @landenai, thank you for the report!

I am trying to reproduce what you've encountered. Adapting the pseudocode you provided to the Python code below, I am able to capture both spans. I am running a minimal Celery instance and submitting the task.

async def do_some_async_work():
    with sentry_sdk.start_span():  # nothing in here is being recorded right
        await baz()

-   await sync_to_async(django_orm_call)(). # another complication
+	await sync_to_async(django_orm_call)()  # another complication


@shared_task
def foo_celery_task():
    with sentry_sdk.start_span():  # recorded correctly
        do_some_work()
-   sync_to_async(do_some_async_work)() # not recorded
+   async_to_sync(do_some_async_work)()