This document is for Celery's development version, which can be significantly different from previous releases. Get old docs here: 3.0.

Celery - Distributed Task Queue

Celery is a simple, flexible and reliable distributed system to process vast amounts of messages, while providing operations with the tools required to maintain such a system.

It’s a task queue with focus on real-time processing, while also supporting task scheduling.

Celery has a large and diverse community of users and contributors, you should come join us on IRC or our mailing-list.

Celery is Open Source and licensed under the BSD License.

Getting Started

• If you are new to Celery you can get started by following the First Steps with Celery tutorial.
• You can also check out the FAQ.

Contents

• Copyright

• Getting Started
  • Introduction to Celery
  • Brokers
  • First Steps with Celery
  • Next Steps
  • Resources
• User Guide
  • Application
  • Tasks
  • Calling Tasks
  • Canvas: Designing Workflows
  • Workers Guide
  • Periodic Tasks
  • HTTP Callback Tasks (Webhooks)
  • Routing Tasks
  • Monitoring and Management Guide
  • Security
  • Optimizing
  • Concurrency
  • Signals
  • Extensions and Bootsteps

• Configuration and defaults
• Django
• Contributing
• Community Resources
• Tutorials
• Frequently Asked Questions
• Change history
• What’s new in Celery 3.1 (Cipater)
• What’s new in Celery 3.0 (Chiastic Slide)
• What’s new in Celery 2.5
• API Reference
• Internals
• History
• Glossary

Indices and tables

• Index
• Module Index
• Search Page