Celery beat not picking up periodic tasks

I think you did not define the cron shcedule. Where is it stored? Usually it is on disk or in database (django_celery). See http://docs.celeryproject.org/en/latest/userguide/periodic-tasks.html

Also, you have to run your worker with a beat option

The root cause, in this case, is that the beat scheduler needs to be started with the appropriate arguments. You supplied the following command:

$ celery -A sandbox worker --loglevel=debug

However, to start celery with a beat schedule, (as opposed to a regular celery worker) you must specify beat rather than worker. Moreover, when using the django_celery_beat extension, it is necessary to use the Database scheduler django_celery_beat.schedulers:DatabaseScheduler rather than the default scheduler celery.beat.PersistentScheduler.

So the corrected command would be:

$ celery -A sandbox beat --loglevel=debug --scheduler django_celery_beat.schedulers:DatabaseScheduler

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