Celery Flower

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

Features

• Shutdown or restart workers
• View workers status (completed, running tasks, etc.)
• View worker pool options (timeouts, processes, etc.)
• Control worker pool size
• View message broker options
• View active queues, add or cancel queues
• View processed task stats by type
• View currently running tasks
• View scheduled tasks
• View reserved and revoked tasks
• Apply time and rate limits
• View all active configuration options
• View all tasks (by type, by worker, etc.)
• View all task options (arguments, start time, runtime, etc.)
• Revoke or terminate tasks
• View real-time execution graphs

API

Flower API enables to control the cluster via REST api 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 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:

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

Installation

To install, simply:

$ pip install flower

Usage

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

$ flower --port=5555

Or launch from celery:

$ celery flower --port=5555

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

$ celery flower --broker=amqp://guest:guest@localhost:5672//

Screenshots

More screenshots

Getting help

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