Question

Celery Beat在启动时会执行定期任务，即使这些任务不该执行。

它们的应用程序在Flask中运行并部署到Heroku。在本地主机中执行时，也会发生此行为。我将Redis用作代理和后端。

芹菜节拍配置：

import os
from celery.schedules import crontab

broker_url = os.environ.get('REDISCLOUD_URL'),
result_backend = os.environ.get('REDISCLOUD_URL')
task_serializer = 'json'
result_serializer = 'json'
accept_content = ['json']
broker_pool_limit = None 
redis_max_connections = None

# Set scheduled email service
beat_schedule = {
    'send-monthly-email': {
        'task': 'routes.send_email_1',
        'schedule': crontab(0, 8, day_of_month='1'), # Execute on the first day of every month.
        # 'kwargs': kargs\
        'args': (3,) #Pass res_check_id=3 for monthly template
    },
    'send-weekly-email': {
        'task': 'routes.send_email_1',
        'schedule': crontab(0, 8, day_of_week='3'), # Execute on day 3 of each week
        'args': (2,) #Pass res_check_id=2 for weekly template
    },
    'cron-test-task': {
        'task': 'routes.send_email_1',
        'schedule': crontab(), # test every minute
        'args': (2,) #Pass res_check_id=2 for weekly
    },
}

执行节拍：

celery beat -A celery --loglevel=INFO

三个任务中的两个在启动时自动运行：

celery beat v4.3.0 (rhubarb) is starting.
__    -    ... __   -        _
LocalTime -> 2019-06-03 09:52:01
Configuration ->
    . broker -> Redis URL
    . loader -> celery.loaders.app.AppLoader
    . scheduler -> celery.beat.PersistentScheduler
    . db -> celerybeat-schedule
    . logfile -> [stderr]@%INFO
    . maxinterval -> 5.00 minutes (300s)
[2019-06-03 09:52:01,067: INFO/MainProcess] beat:
Starting...
[2019-06-03 09:52:02,224: INFO/MainProcess] Scheduler: Sending due task send-monthly-email (routes.send_email_1)
[2019-06-03 09:52:04,296: INFO/MainProcess] Scheduler: Sending due task cron-test-task (routes.send_email_1)

由于heroku每天都会重新启动服务器/ dyno，因此对用户造成垃圾邮件。

由于某种原因，仅执行3个beat_schedule任务中的2个...

关于如何防止这种行为的建议？

芹菜节拍每次启动都会执行定期任务-如何防止它

0 个答案: