起始芹菜工作者抛出“无属性'worker_state_db'”， [英] Start celery worker throws "no attribute 'worker_state_db'"

问题描述

当我尝试以Django应用方式启动celery worker时：

When I am trying to start celery worker in Django app as:

celery -A myApp worker -l info

我收到以下错误：

File "/home/alexander/.pyenv/versions/3.5.1/envs/myApp/lib/python3.5/site-packages/celery/utils/collections.py", line 134, in __getattr__
    type(self).__name__, k))

    AttributeError: 'Settings' object has no attribute 'worker_state_db'

如果您知道如何解决，请写下您的想法！

If you know how to solve it please write your idea!

推荐答案

如果在解析设置时引发异常，则会出现该错误。例如，当我们通过环境变量设置Django的 SECRET_KEY （或其他设置）时：

The bug appears if an exception is raised while parsing settings. Such as when we set Django's SECRET_KEY (or any other setting) via an environment variable:

SECRET_KEY = os.environ['SECRET_KEY']

要解决此问题，您可以切换回：

To solve the problem you can switch back to:

SECRET_KEY = "asdfasdfasdf"

或使用：

SECRET_KEY = os.environ.get('SECRET_KEY', '')

如果您在下面的注释中注释了以下内容，也可以找到引起问题的设置 celery.py 文件并再次启动工作程序：

You can also find which setting caused the problem if you comment our the following line in celery.py file and start the worker again:

app.config_from_object('django.conf:settings', namespace='CELERY')

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