Celery Task Queue

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Stable release 3.1.13 / July 10, 2014; 16 months ago (2014-07-10)
Written in Python
Platform Cross-platform
Available in Python
Type Message-oriented middleware
License BSD License
Website celeryproject.org

Celery is an open source asynchronous task queue/job queue based on distributed message passing. It is focused on real-time operation, but supports scheduling as well.


The execution units, called tasks, are executed concurrently on one or more worker nodes using multiprocessing, eventlet or gevent. Tasks can execute asynchronously (in the background) or synchronously (wait until ready). Celery is used in production systems to process millions of tasks every hour.[citation needed]


Celery is written in Python, but the protocol can be implemented in any language. It can also operate with other languages using webhooks. There is also RCelery [1] for the Ruby programming language, and a PHP client.[2]

The recommended message broker is RabbitMQ, but support for Redis, MongoDB, Beanstalk, Amazon SQS, CouchDB, IronMQ and databases (using SQLAlchemy or the Django ORM) is also available.

See also[edit]


External links[edit]