flower 0,2,6,0,4,0,2,2 travis-ci docker vagrant python

Real-time monitor and web admin for Celery distributed task queue

Celery Flower

.. image:: https://img.shields.io/pypi/v/flower.svg :target: https://pypi.python.org/pypi/flower

.. image:: https://travis-ci.org/mher/flower.svg?branch=master :target: https://travis-ci.org/mher/flower

Flower is a web based tool for monitoring and administrating Celery clusters.


  • Real-time monitoring using Celery Events

    • Task progress and history
    • Ability to show task details (arguments, start time, runtime, and more)
    • Graphs and statistics
  • Remote Control

    • View worker status and statistics
    • Shutdown and restart worker instances
    • Control worker pool size and autoscale settings
    • View and modify the queues a worker instance consumes from
    • View currently running tasks
    • View scheduled tasks (ETA/countdown)
    • View reserved and revoked tasks
    • Apply time and rate limits
    • Configuration viewer
    • Revoke or terminate tasks
  • Broker monitoring

    • View statistics for all Celery queues
    • Queue length graphs

  • Basic Auth and Google OpenID authentication


Flower API enables to manage the cluster via REST API, call tasks and receive task events in real-time via WebSockets.

For example you can restart worker’s pool by: ::

$ curl -X POST http://localhost:5555/api/worker/pool/restart/myworker

Or call a task by: ::

$ curl -X POST -d '{"args":[1,2]}' http://localhost:5555/api/task/async-apply/tasks.add

Or terminate executing task by: ::

$ curl -X POST -d 'terminate=True' http://localhost:5555/api/task/revoke/8a4da87b-e12b-4547-b89a-e92e4d1f8efd

Or receive task completion events in real-time:

.. code-block:: javascript

var ws = new WebSocket('ws://localhost:5555/api/task/events/task-succeeded/');
ws.onmessage = function (event) {

For more info checkout API Reference_ and examples_.

.. _API Reference: https://flower.readthedocs.io/en/latest/api.html .. _examples: http://nbviewer.ipython.org/urls/raw.github.com/mher/flower/master/docs/api.ipynb


PyPI version: ::

$ pip install flower

Development version: ::

$ pip install https://github.com/mher/flower/zipball/master


Launch the server and open http://localhost:5555: ::

$ flower --port=5555

Or launch from celery: ::

$ celery flower -A proj --address= --port=5555

Broker URL and other configuration options can be passed through the standard Celery options: ::

$ celery flower -A proj --broker=amqp://guest:[email protected]:5672//

Or run with unix socket file: ::

$ flower --unix_socket=/tmp/flower.sock


Documentation is available at Read the Docs_ and IPython Notebook Viewer_

.. _Read the Docs: https://flower.readthedocs.io .. _IPython Notebook Viewer: http://nbviewer.ipython.org/urls/raw.github.com/mher/flower/master/docs/api.ipynb


Flower is licensed under BSD 3-Clause License. See the LICENSE file in the top distribution directory for the full license text.

Getting help

Please head over to #celery IRC channel on irc.freenode.net or open an issue_.

.. _open an issue: https://github.com/mher/flower/issues


If you’d like to contribute, simply fork the repository, commit your changes, run the tests (python -m tests) and send a pull request. Make sure you add yourself to CONTRIBUTORS.

If you are interested in maintaining the project please contact.

.. _the repository: https://github.com/mher/flower .. _CONTRIBUTORS: https://github.com/mher/flower/blob/master/CONTRIBUTORS

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