python - Django 1.7 部署 AppRegistryNotReady 仅在 OpenShift 上

Question

我遇到了与此类似的问题 ( Django 1.7 upgrade error: AppRegistryNotReady: Models aren't loaded yet )，但它只发生在我的 OpenShift 部署上。

我注意到它卡在管理模块上，所以我将其注释掉，但它只是转移到了其他内容。

这是我在 OpenShift 实例上遇到的错误:

Environment:

Request Method: GET
Request URL: http://my-app.rhcloud.com/

Django Version: 1.7.3
Python Version: 2.7.5
Installed Applications:
('django.contrib.admin',
 'django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.messages',
 'django.contrib.staticfiles',
 'django.contrib.sites',
 'allauth',
 'allauth.account',
 'rest_framework',
 'main',
 'debug_toolbar')
Installed Middleware:
('django.contrib.sessions.middleware.SessionMiddleware',
 'django.middleware.common.CommonMiddleware',
 'django.middleware.csrf.CsrfViewMiddleware',
 'django.contrib.auth.middleware.AuthenticationMiddleware',
 'django.contrib.auth.middleware.SessionAuthenticationMiddleware',
 'django.contrib.messages.middleware.MessageMiddleware',
 'django.middleware.clickjacking.XFrameOptionsMiddleware',
 'debug_toolbar.middleware.DebugToolbarMiddleware')


Traceback:
File "/var/lib/openshift/xxxxxxxxxxxxxxxx/python/virtenv/lib/python2.7/site-packages/django/core/handlers/base.py" in get_response
  98.                 resolver_match = resolver.resolve(request.path_info)
File "/var/lib/openshift/xxxxxxxxxxxxxxxx/python/virtenv/lib/python2.7/site-packages/django/core/urlresolvers.py" in resolve
  343.             for pattern in self.url_patterns:
File "/var/lib/openshift/xxxxxxxxxxxxxxxx/python/virtenv/lib/python2.7/site-packages/django/core/urlresolvers.py" in url_patterns
  372.         patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module)
File "/var/lib/openshift/xxxxxxxxxxxxxxxx/python/virtenv/lib/python2.7/site-packages/django/core/urlresolvers.py" in urlconf_module
  366.             self._urlconf_module = import_module(self.urlconf_name)
File "/opt/rh/python27/root/usr/lib64/python2.7/importlib/__init__.py" in import_module
  37.     __import__(name)
File "/var/lib/openshift/xxxxxxxxxxxxxxxx/app-root/runtime/repo/wsgi/myapp/myapp/urls.py" in <module>
  9.     url(r'^admin/', include(admin.site.urls)),
File "/var/lib/openshift/xxxxxxxxxxxxxxxx/python/virtenv/lib/python2.7/site-packages/django/contrib/admin/sites.py" in urls
  262.         return self.get_urls(), self.app_name, self.name
File "/var/lib/openshift/xxxxxxxxxxxxxxxx/python/virtenv/lib/python2.7/site-packages/django/contrib/admin/sites.py" in get_urls
  223.             self.check_dependencies()
File "/var/lib/openshift/xxxxxxxxxxxxxxxx/python/virtenv/lib/python2.7/site-packages/django/contrib/admin/sites.py" in check_dependencies
  161.         if not apps.is_installed('django.contrib.admin'):
File "/var/lib/openshift/xxxxxxxxxxxxxxxx/python/virtenv/lib/python2.7/site-packages/django/apps/registry.py" in is_installed
  231.         self.check_apps_ready()
File "/var/lib/openshift/xxxxxxxxxxxxxxxx/python/virtenv/lib/python2.7/site-packages/django/apps/registry.py" in check_apps_ready
  124.             raise AppRegistryNotReady("Apps aren't loaded yet.")

Exception Type: AppRegistryNotReady at /
Exception Value: Apps aren't loaded yet.

这是我的 wigs.py 文件内容:

import os
os.environ.setdefault("DJANGO_SETTINGS_MODULE", "myapp.settings")

from django.core.wsgi import get_wsgi_application
application = get_wsgi_application()

为了测试 wsgi.py，我在本地使用gunicorn，看看是否能得到相同的结果，但运气不好。我对此感到非常困惑，因为我预计在使用 wsgi.py 启动方法时两者都会出现相同的错误。关于如何调试此问题或者我是否应该在 OpenShift 上查找可能触发此问题的内容有什么想法吗？

谢谢，- RB

Answer 1

对 OpenShift 还不太熟悉，我发现了这个问题。

在 OpenShift 中，不使用标准 Django wsgi.py 文件，而是替换为 wsgi/application python 脚本。我在 wsgi.py 文件中使用了新的 Django 1.7 启动服务器的方法，该方法可以正常工作，但尚未在应用程序文件中更新它。此问题已得到纠正，现在该项目正在按预期启动。