对于芹菜5.0+，从CLI执行该操作，并针对特定的队列:

—APP_NAME清除——QUEUE_NAME

如果你想像我一样在一个步骤中做，那么在最后添加-f选项来跳过确认步骤。

芹菜3+:

CLI:

$ celery -A proj purge

编程:

>>> from proj.celery import app
>>> app.control.purge()

http://docs.celeryproject.org/en/latest/faq.html#how-do-i-purge-all-waiting-tasks

从文档中可以看出:

$ celery -A proj purge

or

from proj.celery import app
app.control.purge()

(编辑:更新与当前的方法。)

对于芹菜5.0+，从CLI执行该操作，并针对特定的队列:

—APP_NAME清除——QUEUE_NAME

如果你想像我一样在一个步骤中做，那么在最后添加-f选项来跳过确认步骤。

对于芹菜5.0+版本，使用RabbitMQ作为代理

我们需要先建立一个从程序到经纪人的新连接， 并将连接与要清除的队列绑定。

# proj/celery.py
from celery import Celery
app = Celery('proj')

from proj.celery import app
queues = ['queue_A', 'queue_B', 'queue_C']
with app.connection_for_write() as conn:
    conn.connect()
    for queue in queues:
        count = app.amqp.queues[queue].bind(conn).purge()
        print(f'Purge {queue} with {count} message(s)')

芹菜3+

http://docs.celeryproject.org/en/3.1/faq.html#how-do-i-purge-all-waiting-tasks

CLI

清除命名队列:

 celery -A proj amqp queue.purge <queue name>

清除配置的队列

celery -A proj purge

I’ve purged messages, but there are still messages left in the queue? Answer: Tasks are acknowledged (removed from the queue) as soon as they are actually executed. After the worker has received a task, it will take some time until it is actually executed, especially if there are a lot of tasks already waiting for execution. Messages that are not acknowledged are held on to by the worker until it closes the connection to the broker (AMQP server). When that connection is closed (e.g. because the worker was stopped) the tasks will be re-sent by the broker to the next available worker (or the same worker when it has been restarted), so to properly purge the queue of waiting tasks you have to stop all the workers, and then purge the tasks using celery.control.purge().

因此，要清除整个队列，必须停止worker。