I’m trying to run example from Celery documentation.
I run: celeryd --loglevel=INFO
/usr/local/lib/python2.7/dist-packages/celery/loaders/default.py:64: NotConfigured: No 'celeryconfig' module found! Please make sure it exists and is available to Python. "is available to Python." % (configname, ))) [2012-03-19 04:26:34,899: WARNING/MainProcess] -------------- celery@ubuntu v2.5.1 ---- **** ----- --- * *** * -- [Configuration] -- * - **** --- . broker: amqp://guest@localhost:5672// - ** ---------- . loader: celery.loaders.default.Loader - ** ---------- . logfile: [stderr]@INFO - ** ---------- . concurrency: 4 - ** ---------- . events: OFF - *** --- * --- . beat: OFF -- ******* ---- --- ***** ----- [Queues] -------------- . celery: exchange:celery (direct) binding:celery
tasks.py:
# -*- coding: utf-8 -*- from celery.task import task @task def add(x, y): return x + y
run_task.py:
# -*- coding: utf-8 -*- from tasks import add result = add.delay(4, 4) print (result) print (result.ready()) print (result.get())
In same folder celeryconfig.py:
CELERY_IMPORTS = ("tasks", ) CELERY_RESULT_BACKEND = "amqp" BROKER_URL = "amqp://guest:guest@localhost:5672//" CELERY_TASK_RESULT_EXPIRES = 300
When I run “run_task.py”:
on python console
eb503f77-b5fc-44e2-ac0b-91ce6ddbf153 False
errors on celeryd server
[2012-03-19 04:34:14,913: ERROR/MainProcess] Received unregistered task of type 'tasks.add'. The message has been ignored and discarded. Did you remember to import the module containing this task? Or maybe you are using relative imports? Please see http://bit.ly/gLye1c for more information. The full contents of the message body was: {'retries': 0, 'task': 'tasks.add', 'utc': False, 'args': (4, 4), 'expires': None, 'eta': None, 'kwargs': {}, 'id': '841bc21f-8124-436b-92f1-e3b62cafdfe7'} Traceback (most recent call last): File "/usr/local/lib/python2.7/dist-packages/celery/worker/consumer.py", line 444, in receive_message self.strategies[name](message, body, message.ack_log_error) KeyError: 'tasks.add'
Please explain what’s the problem.
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Answer
You can see the current list of registered tasks in the celery.registry.TaskRegistry
class. Could be that your celeryconfig (in the current directory) is not in PYTHONPATH
so celery can’t find it and falls back to defaults. Simply specify it explicitly when starting celery.
celeryd --loglevel=INFO --settings=celeryconfig
You can also set --loglevel=DEBUG
and you should probably see the problem immediately.