python - Celery periodic task doesn't start -

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i using celery in django project run periodic tasks. following standard tutorial celery's website, here project structure project

|_ settings.py |_ __init__.py |_ celery_app.py (instead of celery.py) |_ app    |_ tasks.py

relevant parts in settings.py looks -

celery_result_backend = "amqp" celery_imports = ["app.tasks"]  celery_always_eager = true      celery_result_backend = 'djcelery.backends.database:databasebackend' celerybeat_scheduler = 'djcelery.schedulers.databasescheduler'  celery_db_reuse_max = 1  celery_accept_content = ['json'] celery_task_serializer = 'json' celery_result_serializer = 'json' celery_timezone = 'america/new york'  celerybeat_schedule = {     'test_task': {         'task': 'tasks.test_task',         'schedule': timedelta(seconds=5),         'args': (),     }, }

celery_app.py looks -

from __future__ import absolute_import import os celery import celery django.conf import settings  os.environ.setdefault('django_settings_module', 'project.settings') app = celery('project') app.config_from_object('django.conf:settings') app.autodiscover_tasks(lambda: settings.installed_apps)

tasks.py looks -

from __future__ import absolute_import celery.utils.log import get_task_logger celery import task celery_app import app  logger = get_task_logger(__name__)  @app.task def test_task():     in range(0, 4):         logger.debug("celery test task")

when run celery worker, can see task being discovered -

$ python manage.py celery -a project worker --loglevel=debug --app=celery_app:app   -------------- celery@-mbp.home v3.1.19 (cipater) ---- **** -----  --- * ***  * -- darwin-15.4.0-x86_64-i386-64bit -- * - **** ---  - ** ---------- [config] - ** ---------- .> app:         project:0x10d5b9a10 - ** ---------- .> transport:   amqp://sgcelery1:**@localhost:5672/sgceleryhost - ** ---------- .> results:     djcelery.backends.database:databasebackend - *** --- * --- .> concurrency: 4 (prefork) -- ******* ----  --- ***** ----- [queues]  -------------- .> celery           exchange=celery(direct) key=celery   [tasks]   . celery.backend_cleanup   . celery.chain   . celery.chord   . celery.chord_unlock   . celery.chunks   . celery.group   . celery.map   . celery.starmap   . app.tasks.test_task  [2016-04-24 23:54:55,452: info/mainprocess] connected amqp://sgcelery1:**@127.0.0.1:5672/sgceleryhost [2016-04-24 23:54:55,471: info/mainprocess] mingle: searching neighbors [2016-04-24 23:54:56,481: info/mainprocess] mingle: alone [2016-04-24 23:54:56,497: warning/mainprocess] celery@-mbp.home ready.

and when run beat, shows task being picked settings.py, never runs.

$ python manage.py celery -a project beat --app=celery_app:app --loglevel=debug  [2016-04-24 23:55:04,059: debug/mainprocess] current schedule: <modelentry: test_task tasks.test_task(*[], **{}) {4}>

what missing here ?

try setting celery_always_eager = false.

setting celery_always_eager = true makes tasks run synchronously without celery being used. switching false make celery beat pick , run periodically. false switch used in development mode when don't want celery process tasks.

checkout docs here


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