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Playing tasks with Django-Celery

by Mauro Rocco for EuroPython 2011

Celery is an open source task queueing system based on distributed message passing.

I will talk about the tools that Celery offers for task distribution and how to monitor and manage the system using a Django web interface. This talk will also focus on how we use Celery at Jamendo and our real solutions to some common issues you may encounter when developing a back-office based on Celery.

The talk will cover the following topics:

  • A brief overview of Celery and the AMPQ protocol AMPQ protocol overview, Celery introduction: Celery, RabbitMQ code examples

  • The impact of Celery on the Jamendo work-flow; examples with real tasks. Here I will talk about the Jamendo back-office infrastructure and some of our common tasks. I will discuss the improvements made by introducing a new back-office system based on Celery. I will show some code snippets and go over some real scenarios.

  • Overview of the Django Celery admin interface and some Jamendo extensions. Let’s talk about the Django-Celery interface that allows one to monitor or schedule tasks directly from the Django admin. I will explain which common additional features are necessary and how to add them.

  • Common “gotchas” we encountered while working with Celery and how we solved them.

  • Global task locks

  • Centralized logging: be able to read all the logs of all celery workers on different servers and filter them for real-time debugging


Do you have some questions on this talk? Leave a comment to the speaker!

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60 minutes (inc Q&A)
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