不使用Celery: No Result Backend Configured?,因为使用了SQS。
继续收到以下错误:
未配置任何结果后端。有关更多信息,请参阅文档 信息。
我的制作设置如下:
CELERY_BROKER_URL = 'sqs://%s:%s@' % (
urllib.parse.quote(env.str('TASK_QUEUE_USER_ID'), safe=''),
urllib.parse.quote(env.str('TASK_QUEUE_USER_SECRET'), safe=''))
BROKER_URL = CELERY_BROKER_URL
CELERY_ENABLE_REMOTE_CONTROL = False
CELERY_RESULT_BACKEND = None # Disabling the results backend
RESULT_BACKEND = None # Disabling the results backend
CELERY_ACCEPT_CONTENT = ['application/json']
CELERY_TASK_SERIALIZER = 'json'
CELERY_RESULT_SERIALIZER = 'json'
CELERY_DEFAULT_QUEUE = 'async_tasks'
SQS_QUEUE_NAME = 'async_tasks'
CELERY_ENABLE_REMOTE_CONTROL = False
CELERY_SEND_EVENTS = False
CELERY_BROKER_TRANSPORT_OPTIONS = {
'region': 'eu-west-2',
'polling_interval': 3,
'visibility_timeout': 3600,
}
CELERY_SEND_TASK_ERROR_EMAILS = True
#
# https://stackoverflow.com/questions/8048556/celery-with-amazon-sqs#8567665
#
CELERY_BROKER_TRANSPORT = 'sqs'
BROKER_TRANSPORT = 'sqs'
从命令行运行芹菜:
DJANGO_ENV=production celery -A async_tasks worker -l info
连接到SQS并进行轮询,但是当我尝试从命令行DJANGO_ENV=production python manage.py check_async
进行演示调用时:
from django.core.management.base import BaseCommand, CommandError
import async_tasks.tasks as tasks
class Command(BaseCommand):
help = 'Check if infrastructure for async tasks has been setup correctly.'
def handle(self, *args, **options):
try:
print('Sending async request.')
t = tasks.add.apply_async((2, 4))
out = t.get(timeout=1)
print(out)
print(t.status)
except Exception as e:
print(e)
raise CommandError('Error occured')
我收到上面的错误。尝试使用redis开发机器,一切运行良好。
有什么想法吗?
答案 0 :(得分:1)
您需要将Celery Result后端配置为能够存储和收集任务结果。可以将Celery与不带结果后端的SQS代理一起使用,可以“解雇”模式,但是如果您希望能够通过get()之类的方法访问任务的结果,那还不够。
答案 1 :(得分:1)
也许这会帮助某人。上面的答案是正确的,但是如果您仍然想使用Django,SQS和Celery,并且仍然想要查看结果,则可以通过使用django-celery-results库将Django的ORM或Cache Framework用作后端。