#33882: Allow transaction.atomic to work in async contexts.
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Reporter: alex | Owner:
| rajdesai24
Type: New feature | Status: assigned
Component: Database layer | Version: 4.0
(models, ORM) |
Severity: Normal | Resolution:
Keywords: async | Triage Stage: Accepted
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
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Comment (by Hedley Roos):
The suggested async atomic decorator does work in my use cases, but
because the code has no tests, I cannot fully trust it. Incidentally, the
decirator with `thread_sensitive=True` fails under high load. I can
simulate that failure locally.
As for common use cases for async transaction support:
1. Distributed row-level lock through `select_for_update`. Crucial for
financial systems.
2. transaction.on_commit for comms to external systems. This can be as
simple as sending a task to Celery on a successful commit.
3. A method where we modify X related objects needs to be atomic.
Django is very nearly there with full async support. I use Connexion |
FastAPI + Django + Flutter as a toolchain, because Django has the best ORM
by far, and many other best in class features. I wish I understood the
async transactional part a bit better, then I would gladly jump in and fix
this. As it is I'm hoping that the person who wrote the original
transaction management can jump in here and help us.
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Ticket URL: <https://code.djangoproject.com/ticket/33882#comment:22>
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