This article only references primary sources. (July 2024) |
| Celery | |
|---|---|
 | |
| Original author | Ask Solem Hoel |
| Stable release | 5.5.3
/ June 1, 2025 |
| Written in | Python |
| Platform | Cross-platform |
| Available in | Python |
| Type | Message-oriented middleware |
| License | BSD License |
| Website | docs |
| Repository | |
Celery is an open source asynchronous task queue or job queue which is based on distributed message passing. While it supports scheduling, its focus is on operations in real time.[1]
Overview
editThe execution units, called tasks, are executed concurrently on one or more worker nodes using multiprocessing, eventlet[2] or gevent.[3] Tasks can execute asynchronously (in the background) or synchronously (wait until ready). Celery is used in production systems, for services such as Instagram, to process millions of tasks every day.[1]
Technology
editCelery is written in Python, but the protocol can be implemented in any language. It can also operate with other languages using webhooks.[4] There is also a Ruby-Client called RCelery,[5] a PHP client,[6] a Go client,[7] a Rust client,[8] and a Node.js client.[9]
Celery requires a message broker to run. As of October 2024, Redis and RabbitMQ are supported and actively maintained and monitored. Amazon SQS is supported and maintained but does not support worker inspection and management at runtime, while Zookeeper and Kafka are currently in experimental development.[10]
See also
edit
References
edit- ^ a b "Celery: Distributed Task Queue". Archived from the original on 2019-06-13. Retrieved 2016-01-14.
- ^ "Eventlet Networking Library". eventlet.net. Retrieved 2022-09-21.
- ^ "What is gevent? — gevent 21.12.1.dev0 documentation". gevent.org. Retrieved 2022-09-21.
- ^ "HTTP Callback Tasks (Webhooks) — Celery 3.1.23 documentation". docs.celeryproject.org. Archived from the original on 2016-10-30. Retrieved 2016-08-17.
- ^ "leapfrogonline/rcelery". GitHub. Retrieved 2016-08-17.[permanent dead link]
- ^ "gjedeer/celery-php". GitHub. Retrieved 2016-08-17.
- ^ "gocelery/gocelery". GitHub. Retrieved 2018-08-06.
- ^ rusty-celery/rusty-celery, Rusty Celery, 2022-10-09, retrieved 2022-10-09
- ^ "mher/node-celery". GitHub. Retrieved 2016-08-17.
- ^ "Backends and Brokers — Celery 5.2.7 documentation". docs.celeryproject.org. Archived from the original on 2022-06-23. Retrieved 2022-06-23.
External links
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