芹菜 - 无法获取任务结果

Question

我正在使用 Django ORM/Cache 作为 celery 的结果后端。我可以看到在数据库中创建了 django_celery_results_taskresult table。任务完成后，结果也会插入数据库中，可以从 MySQL 查看。但是，当我尝试使用 AsyncResult 和来自 django manage.py shell 的任务 ID 访问结果时，出现以下错误。

>>> AsyncResult.get('88e4d870-1a2b-4675-8f7c-1eacb7199bda')
Traceback (most recent call last):
  File "<console>", line 1, in <module>
  File "/root/vms/lib/python3.6/site-packages/celery/result.py", line 199, in get
    if self.ignored:
AttributeError: 'str' object has no attribute 'ignored'
>>> AsyncResult('88e4d870-1a2b-4675-8f7c-1eacb7199bda').get()
Traceback (most recent call last):
  File "<console>", line 1, in <module>
  File "/root/vms/lib/python3.6/site-packages/celery/result.py", line 224, in get
    on_message=on_message,
  File "/root/vms/lib/python3.6/site-packages/celery/backends/base.py", line 470, in wait_for_pending
    no_ack=no_ack,
  File "/root/vms/lib/python3.6/site-packages/celery/backends/base.py", line 773, in _is_disabled
    raise NotImplementedError(E_NO_BACKEND.strip())
NotImplementedError: No result backend is configured.
Please see the documentation for more information.

我的 celery.py 文件是：

from __future__ import absolute_import, unicode_literals
from celery import Celery
import os

os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'vms.settings')

app = Celery('vms', broker='redis://localhost', include=['cve.tasks','cpe.tasks'])

app.conf.update(
    result_backend='django-db',
    timezone = 'Asia/Kolkata'
)

if __name__ == '__main__':
    app.start()

我已将 django_celery_results 包含在 settings.py INSTALLED_APPLICATIONS 中。

我觉得很奇怪，结果被插入数据库但无法检索。

Answer 1

您必须导入您的应用才能访问结果。在 shell 中尝试以下代码：

from path.to.celery import app


app.AsyncResult('88e4d870-1a2b-4675-8f7c-1eacb7199bda')

芹菜 - 无法获取任务结果

Celery - Cannot fetch task results

python

django

celery

celery-task

django-celery