Django Celery Received unregistered task of type appname.tasks.add

2024/9/30 5:27:35

Following the documentation and the Demo Django project here https://github.com/celery/celery/tree/3.1/examples/django

Project Structure

piesup2|piesup2|  |__init__.py|  |celery.py|  |settings.py|  |urls.pyreports|tasks.py|models.py|etc....

My Code

piesup2/celery.py

from __future__ import absolute_importimport osfrom celery import Celery# set the default Django settings module for the 'celery' program.
os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'piesup2.settings')from django.conf import settings  # noqaapp = Celery('piesup2')# Using a string here means the worker will not have to
# pickle the object when using Windows.
app.config_from_object('django.conf:settings')
app.autodiscover_tasks(lambda: settings.INSTALLED_APPS)@app.task(bind=True)
def debug_task(self):print('Request: {0!r}'.format(self.request))

piesup2/__init__.py

from __future__ import absolute_import# This will make sure the app is always imported when
# Django starts so that shared_task will use this app.
from .celery import app as celery_app  # noqa

piesup2/reports/tasks.py

from __future__ import absolute_importfrom celery import shared_task@shared_task
def add(x, y):return x + y

After starting Celery from the command line with:

celery -A piesup2 worker -l info

When I attempt to run a task from within my models.py file like this:

 def do_stuff(self):from reports.tasks import addnumber = add.delay(2, 2)print(number)

I get the following error:

[2016-08-05 16:50:31,625: ERROR/MainProcess] Received unregisteredtask of type 'reports.tasks.add'. The message has been ignored anddiscarded.

Did you remember to import the module containing this task? Or maybeyou are using relative imports? Please see http://docs.celeryq.org/en/latest/userguide/tasks.html#task-names formore information.

The full contents of the message body was: {'callbacks': None,'retries': 0, 'chord': None, 'errbacks': None, 'task':'reports.tasks.add', 'args': [2, 2], 'timelimit': [None, None],'kwargs': {}, 'id': 'b12eb387-cf8c-483d-b53e-f9ce0ad6b421', 'taskset':None, 'eta': None, 'expires': None, 'utc': True} (258b) Traceback(most recent call last): File"/home/jwe/piesup2/venv/lib/python3.4/site-packages/celery/worker/consumer.py",line 456, in on_task_receivedstrategies[name](message, body, KeyError: 'reports.tasks.add'

Answer

In your django settings you need to add each module that has a celery task to CELERY_IMPORTS

CELERY_IMPORTS = ('reports.tasks','some_app.some_module',
)
https://en.xdnf.cn/q/71123.html

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