Celery not picking CELERY_ALWAYS_EAGER settings
celery, django, python
Solution
`CELERY_ALWAYS_EAGER` has been renamed to `CELERY_TASK_ALWAYS_EAGER` in version 4.0+.
More accurately, all-caps settings have been deprecated in favor of directly configuring the celery app object, and several have been namespaced to either use `task_` or `worker_` as a prefix. Because there's still backwards-compatability with all-caps settings, this indirectly renamed the all-caps setting as well.
From the changelog:
The celery_ prefix has also been removed, and task related settings from this name-space is now prefixed by task_, worker related settings with worker_.
Problem
I am running Django 1.8 + Celery 4.0.2 Celery is configured well and can run my Django tasks locally on redis backend. But when I try to use `CELERY_ALWAYS_EAGER = True` settings, this settings has no effect. Which is not the case with other settings, e.g. `CELERY_TIMEZONE` Specifically, in `pdb` I see that `app.conf.task_always_eager` is `False` lib/python2.7/site-packages/celery/app/task.py(520)apply_async() So somehow CELERY_ALWAYS_EAGER is not picked up and has no effect on app.conf.task_always_eager More info from pdb: ``` > app.conf.get('CELERY_ALWAYS_EAGER') > True > app.conf.task_always_eager > False ``` What can cause this? I know that Celery 4.x is in transition from old setting names to new ones, but they still promise old settings names still would be used as well.