Celery Received unregistered task of type (run example)
I think you need to restart the worker server. I meet the same problem and solve it by restarting.
celery
How do you unit test a Celery task?
It is possible to test tasks synchronously using any unittest lib out there. I normaly do 2 different test sessions when working with celery tasks. The first one (as I’m suggesting bellow) is completely synchronous and should be the one that makes sure the algorithm does what it should do. The second session uses the … Read more
Retrieve list of tasks in a queue in Celery
EDIT: See other answers for getting a list of tasks in the queue. You should look here: Celery Guide – Inspecting Workers Basically this: my_app = Celery(…) # Inspect all nodes. i = my_app.control.inspect() # Show the items that have an ETA or are scheduled for later processing i.scheduled() # Show tasks that are currently … Read more
Deleting all pending tasks in celery / rabbitmq
From the docs: $ celery -A proj purge or from proj.celery import app app.control.purge() (EDIT: Updated with current method.)
Why do we need message brokers like RabbitMQ over a database like PostgreSQL?
Rabbit’s queues reside in memory and will therefore be much faster than implementing this in a database. A (good)dedicated message queue should also provide essential queuing related features such as throttling/flow control, and the ability to choose different routing algorithms, to name a couple(rabbit provides these and more). Depending on the size of your project, … Read more