Celery 4.3.0 在task中执行多线程任务

import threading
from time import sleep,ctime

def smoke():
    for i in range(3):
        print("smoke...%d"%i)
        sleep(10)

def drunk():
    for i in range(3):
        print("drink...%d"%i)
        sleep(10)


@celery_app.task
def test_use_thread():
    print('---开始---:%s' % ctime())

    t1 = threading.Thread(target=smoke)
    t2 = threading.Thread(target=drunk)

    t1.start()
    t2.start()

    while True:
        length = len(threading.enumerate())
        print("当前运行的线程数为:%d" % length)
        if length <= 1:
            break

        sleep(0.5)

    # sleep(5) #
    print('---结束---:%s' % ctime())

In [1]: from celery_tasks.tasks import test_use_thread

In [2]: test_use_thread.delay()
Out[2]: <AsyncResult: 69bba7b0-3808-47f1-ad36-2fea75930901>