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The absolute minimal celerybeat setup
Following is the absolute minimal celerybeat setup. I will use redis as the broker.
Install and run redis
on Ubuntu
sudo apt-get install redis-server
on CentOS
sudo yum install redis
Install celery and redis-py (preferably in a virtual environment)
pip install celery redis
[Note: I tried this on 3.0.23 (Chiastic Slide). You can check version with celery --version]
Have the and files in a directory and run
celery worker -B --loglevel=info
Since I print the values in the tasks, you should see 30 (14+16) every 30 seconds and 60 (3*20) every minute.
If something is wrong, try running with --loglevel=debug and see whether there's something helpful.
from celery.schedules import crontab
from datetime import timedelta
BROKER_URL = 'redis://localhost:6379/0'
CELERY_RESULT_BACKEND = 'redis://localhost:6379/0'
CELERY_IMPORTS = ('tasks',)
'every-30-secs': {
'task': 'tasks.add',
'schedule': timedelta(seconds=30),
'args': (14, 16),
'every-minute': {
'task': 'tasks.mul',
'schedule': crontab(minute='*/1'),
'args': (3, 20),
from celery import Celery
celery = Celery('tasks',
def add(x, y):
print x + y
return x + y
def mul(x, y):
print x * y
return x * y
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