芹菜收到定期任务，但不执行

Question

我使用celery在Django DRF应用程序中运行定期任务。不幸的是，注册的任务没有执行。

项目结构：

1.0.0

celery.py：

project_name
___ cron_tasks
______ __init__.py
______ celery.py

setting.py：

app = Celery('cron_tasks', include=['cron_tasks.celery'])
app.conf.broker_url = settings.RABBITMQ_URL
app.autodiscover_tasks()
app.conf.redbeat_redis_url = settings.REDBEAT_REDIS_URL
app.conf.broker_pool_limit = 1
app.conf.broker_heartbeat = None
app.conf.broker_connection_timeout = 30
app.conf.worker_prefetch_multiplier = 1


app.conf.beat_schedule = {
    'first_warning_overdue': {
        'task': 'cron_tasks.celery.test_task',
        'schedule': 60.0, # seconds
        'options': {'queue': 'default', 'expires': 43100.0}
    }
}

@shared_task
def test_task():
    app.send_task('cron_tasks.celery.test_action')

def test_action():
    print('action!') # print is not executed

    # I also tried to change the data, but it never happens too.
    from django.contrib.auth import get_user_model
    u = get_user_model().objects.get(id=1)
    u.first_name = "testttt"
    u.save()

Rabbitmq运行正常。我可以在celery worker终端输出中看到它：

RABBITMQ_URL = os.environ.get('RABBITMQ_URL')
REDBEAT_REDIS_URL = os.environ.get('REDBEAT_REDIS_URL')
CELERY_BROKER_URL = os.environ.get('RABBITMQ_URL')
CELERYD_TASK_SOFT_TIME_LIMIT = 60
CELERY_ACCEPT_CONTENT = ['application/json']
CELERY_TASK_SERIALIZER = 'json'
CELERY_RESULT_SERIALIZER = 'json'
CELERY_RESULT_BACKEND = os.environ.get('REDBEAT_REDIS_URL')
CELERY_IMPORTS = ("cron_tasks.celery", )

from kombu import Queue
CELERY_DEFAULT_QUEUE = 'default'
CELERY_QUEUES = (
    Queue('default'),
)
CELERY_CREATE_MISSING_QUEUES = True
redbeat_redis_url = REDBEAT_REDIS_URL

Redis正常运行。我使用redis发送节拍。 我跑：

- ** ---------- .> transport:   amqp://admin:**@localhost:5672/my_vhost

它显示：

celery beat -S redbeat.RedBeatScheduler -A cron_tasks.celery:app  --loglevel=debug

芹菜工人以这种方式运行：

[2019-02-15 09:32:44,477: DEBUG/MainProcess] beat: Waking up in 10.00 seconds.
[2019-02-15 09:32:54,480: DEBUG/MainProcess] beat: Extending lock...
[2019-02-15 09:32:54,481: DEBUG/MainProcess] Selecting tasks
[2019-02-15 09:32:54,482: INFO/MainProcess] Loading 1 tasks
[2019-02-15 09:32:54,483: INFO/MainProcess] Scheduler: Sending due task first_warning_overdue (cron_tasks.celery.test_task)
[2019-02-15 09:32:54,484: DEBUG/MainProcess] cron_tasks.celery.test_task sent. id->f89083aa-11dc-41fc-9ebe-541840951f8f

它说：

celery worker -Q default -A cron_tasks.celery:app -n .%%h --without-gossip --without-mingle --without-heartbeat --loglevel=info  --max-memory-per-child=512000

预期的行为： 这应该运行我的-------------- celery@.%me.local v4.2.1 (windowlicker) ---- **** ----- --- * *** * -- Darwin-16.7.0-x86_64-i386-64bit 2019-02-15 09:31:50 -- * - **** --- - ** ---------- [config] - ** ---------- .> app: cron_tasks:0x10e2a5ac8 - ** ---------- .> transport: amqp://admin:**@localhost:5672/my_vhost - ** ---------- .> results: disabled:// - *** --- * --- .> concurrency: 4 (prefork) -- ******* ---- .> task events: OFF (enable -E to monitor tasks in this worker) --- ***** ----- -------------- [queues] .> default exchange=default(direct) key=default [tasks] . cron_tasks.celery.test_task [2019-02-15 09:31:50,833: INFO/MainProcess] Connected to amqp://admin:**@127.0.0.1:5672/my_vhost [2019-02-15 09:31:50,867: INFO/MainProcess] celery@.%me.local ready. [2019-02-15 09:41:46,218: INFO/MainProcess] Received task: cron_tasks.celery.test_task[3c121f04-af3b-4cbe-826b-a32da6cc156e] expires:[2019-02-15 21:40:05.779231+00:00] [2019-02-15 09:41:46,220: INFO/ForkPoolWorker-2] Task cron_tasks.celery.test_task[3c121f04-af3b-4cbe-826b-a32da6cc156e] succeeded in 0.001324941000000024s: None 。 但是，即使celery worker输出显示test_action()，该函数也永远不会执行。