Reputation: 13700
After upgrading to Celery 4.1.0 I got this error. While running my Django app.
Missing connection string! Do you have the database_url setting set to a real value?
Upvotes: 0
Views: 1213
Reputation: 13700
Solution
Configuration betwean previous working version and 4.0.1 has slightly changed. Thut I hadd to specify correct url for my database backend (postgres)
Here is my config
BACKEND_URL = 'db+postgresql://'
BACKEND_URL += os.environ.get('POSTGRES_USER') + ':'
BACKEND_URL += os.environ.get('POSTGRES_PASSWORD') + '@'
BACKEND_URL += os.environ.get('POSTGRES_HOST') + ':'
BACKEND_URL += os.environ.get('POSTGRES_PORT') + '/'
BACKEND_URL += os.environ.get('POSTGRES_DB')
# celery application
celery = Celery('tasks',
broker='amqp://guest:guest@localhost:5672',
backend='database'
)
# backend URL
celery.conf.update(
CELERY_RESULT_BACKEND=BACKEND_URL,
...
)
Upvotes: 2