celery beat doesn't work properly

Question

when i run this command for celery beat.

[2013-06-27 02:17:05,936: INFO/MainProcess] Celerybeat: Starting...

[2013-06-27 02:17:05,937: INFO/MainProcess] Writing entries...

[2013-06-27 02:17:08,711: INFO/MainProcess] DatabaseScheduler: Schedule changed.

[2013-06-27 02:17:08,712: INFO/MainProcess] Writing entries...

it is stuck on this result. but in my settings.py I have configured the CELERYBEAT_SCHEDULE.

CELERYBEAT_SCHEDULER = "djcelery.schedulers.DatabaseScheduler"

from datetime import timedelta

CELERYBEAT_SCHEDULE = {
    'add-every-30-seconds': {
    'task': 'celerytest.tasks.add',
    'schedule': timedelta(seconds=30),
    'args': (16, 16)
    },

    'add-every-10-seconds': {
    'task': 'celerytest.tasks.minus',
    'schedule': timedelta(seconds=10),
    'args': (20, 16)
    },

}

What's wrong with my celery beat?

Solution

The celery beat command starts the celery scheduler. This process schedules tasks and places them in a queue periodically. It does not execute tasks.

You need to start celery beat and celery worker (I guess you are using django-celery):

python manage.py celery beat
python manage.py celery worker

Or simply:

python manage.py celery worker --beat