EC2上Django 1.6的500内部服务器错误，django.wsgi
我刚刚在EC2服务器上安装（或者说尝试安装）Django 1.6，但在使用django.wsgi的时候遇到了一些麻烦。
我已经安装了Django 1.6、httpd和mod_wsgi，但我收到的错误是：“服务器遇到内部错误或配置错误，无法完成您的请求。”
请联系服务器管理员，root@localhost...”
我知道我在某个地方出错了，但我看不懂错误日志在说什么。我看到日志底部有一些数据库错误，但我还没有设置任何数据库，难道上面的错误和这个无关吗？
这是错误日志的最新内容：
[Wed Apr 23 02:39:00 2014] [error] [client 75.75.80.82] mod_wsgi (pid=1973): Exception occurred processing WSGI script '/home/ec2-user/Django-1.6/joshsite/apache/django.wsgi'.
[Wed Apr 23 02:39:00 2014] [error] [client 75.75.80.82] Traceback (most recent call last):
[Wed Apr 23 02:39:00 2014] [error] [client 75.75.80.82] File "/usr/lib/python2.6/site-packages/django/core/handlers/wsgi.py", line 187, in __call__
[Wed Apr 23 02:39:00 2014] [error] [client 75.75.80.82] self.load_middleware()
[Wed Apr 23 02:39:00 2014] [error] [client 75.75.80.82] File "/usr/lib/python2.6/site-packages/django/core/handlers/base.py", line 47, in load_middleware
[Wed Apr 23 02:39:00 2014] [error] [client 75.75.80.82] mw_class = import_by_path(middleware_path)
[Wed Apr 23 02:39:00 2014] [error] [client 75.75.80.82] File "/usr/lib/python2.6/site-packages/django/utils/module_loading.py", line 21, in import_by_path
[Wed Apr 23 02:39:00 2014] [error] [client 75.75.80.82] module = import_module(module_path)
[Wed Apr 23 02:39:00 2014] [error] [client 75.75.80.82] File "/usr/lib/python2.6/site-packages/django/utils/importlib.py", line 40, in import_module
[Wed Apr 23 02:39:00 2014] [error] [client 75.75.80.82] __import__(name)
[Wed Apr 23 02:39:00 2014] [error] [client 75.75.80.82] File "/usr/lib/python2.6/site-packages/django/contrib/auth/middleware.py", line 3, in <module>
[Wed Apr 23 02:39:00 2014] [error] [client 75.75.80.82] from django.contrib.auth.backends import RemoteUserBackend
[Wed Apr 23 02:39:00 2014] [error] [client 75.75.80.82] File "/usr/lib/python2.6/site-packages/django/contrib/auth/backends.py", line 3, in <module>
[Wed Apr 23 02:39:00 2014] [error] [client 75.75.80.82] from django.contrib.auth.models import Permission
[Wed Apr 23 02:39:00 2014] [error] [client 75.75.80.82] File "/usr/lib/python2.6/site-packages/django/contrib/auth/models.py", line 48, in <module>
[Wed Apr 23 02:39:00 2014] [error] [client 75.75.80.82] class Permission(models.Model):
[Wed Apr 23 02:39:00 2014] [error] [client 75.75.80.82] File "/usr/lib/python2.6/site-packages/django/db/models/base.py", line 96, in __new__
[Wed Apr 23 02:39:00 2014] [error] [client 75.75.80.82] new_class.add_to_class('_meta', Options(meta, **kwargs))
[Wed Apr 23 02:39:00 2014] [error] [client 75.75.80.82] File "/usr/lib/python2.6/site-packages/django/db/models/base.py", line 264, in add_to_class
[Wed Apr 23 02:39:00 2014] [error] [client 75.75.80.82] value.contribute_to_class(cls, name)
[Wed Apr 23 02:39:00 2014] [error] [client 75.75.80.82] File "/usr/lib/python2.6/site-packages/django/db/models/options.py", line 124, in contribute_to_class
[Wed Apr 23 02:39:00 2014] [error] [client 75.75.80.82] self.db_table = truncate_name(self.db_table, connection.ops.max_name_length())
[Wed Apr 23 02:39:00 2014] [error] [client 75.75.80.82] File "/usr/lib/python2.6/site-packages/django/db/__init__.py", line 34, in __getattr__
[Wed Apr 23 02:39:00 2014] [error] [client 75.75.80.82] return getattr(connections[DEFAULT_DB_ALIAS], item)
[Wed Apr 23 02:39:00 2014] [error] [client 75.75.80.82] File "/usr/lib/python2.6/site-packages/django/db/utils.py", line 198, in __getitem__
[Wed Apr 23 02:39:00 2014] [error] [client 75.75.80.82] backend = load_backend(db['ENGINE'])
[Wed Apr 23 02:39:00 2014] [error] [client 75.75.80.82] File "/usr/lib/python2.6/site-packages/django/db/utils.py", line 131, in load_backend
[Wed Apr 23 02:39:00 2014] [error] [client 75.75.80.82] raise ImproperlyConfigured(error_msg)
[Wed Apr 23 02:39:00 2014] [error] [client 75.75.80.82] ImproperlyConfigured: 'mysql' isn't an available database backend.
[Wed Apr 23 02:39:00 2014] [error] [client 75.75.80.82] Try using 'django.db.backends.XXX', where XXX is one of:
[Wed Apr 23 02:39:00 2014] [error] [client 75.75.80.82] u'mysql', u'oracle', u'postgresql_psycopg2', u'sqlite3'
[Wed Apr 23 02:39:00 2014] [error] [client 75.75.80.82] Error was: No module named mysql.base
[Wed Apr 23 02:39:03 2014] [error] [client 75.75.80.82] mod_wsgi (pid=1976): Exception occurred processing WSGI script '/home/ec2-user/Django-1.6/joshsite/apache/django.wsgi'.
[Wed Apr 23 02:39:03 2014] [error] [client 75.75.80.82] Traceback (most recent call last):
[Wed Apr 23 02:39:03 2014] [error] [client 75.75.80.82] File "/usr/lib/python2.6/site-packages/django/core/handlers/wsgi.py", line 187, in __call__
[Wed Apr 23 02:39:03 2014] [error] [client 75.75.80.82] self.load_middleware()
[Wed Apr 23 02:39:03 2014] [error] [client 75.75.80.82] File "/usr/lib/python2.6/site-packages/django/core/handlers/base.py", line 47, in load_middleware
[Wed Apr 23 02:39:03 2014] [error] [client 75.75.80.82] mw_class = import_by_path(middleware_path)
[Wed Apr 23 02:39:03 2014] [error] [client 75.75.80.82] File "/usr/lib/python2.6/site-packages/django/utils/module_loading.py", line 21, in import_by_path
[Wed Apr 23 02:39:03 2014] [error] [client 75.75.80.82] module = import_module(module_path)
[Wed Apr 23 02:39:03 2014] [error] [client 75.75.80.82] File "/usr/lib/python2.6/site-packages/django/utils/importlib.py", line 40, in import_module
[Wed Apr 23 02:39:03 2014] [error] [client 75.75.80.82] __import__(name)
[Wed Apr 23 02:39:03 2014] [error] [client 75.75.80.82] File "/usr/lib/python2.6/site-packages/django/contrib/auth/middleware.py", line 3, in <module>
[Wed Apr 23 02:39:03 2014] [error] [client 75.75.80.82] from django.contrib.auth.backends import RemoteUserBackend
[Wed Apr 23 02:39:03 2014] [error] [client 75.75.80.82] File "/usr/lib/python2.6/site-packages/django/contrib/auth/backends.py", line 3, in <module>
[Wed Apr 23 02:39:03 2014] [error] [client 75.75.80.82] from django.contrib.auth.models import Permission
[Wed Apr 23 02:39:03 2014] [error] [client 75.75.80.82] File "/usr/lib/python2.6/site-packages/django/contrib/auth/models.py", line 48, in <module>
[Wed Apr 23 02:39:03 2014] [error] [client 75.75.80.82] class Permission(models.Model):
[Wed Apr 23 02:39:03 2014] [error] [client 75.75.80.82] File "/usr/lib/python2.6/site-packages/django/db/models/base.py", line 96, in __new__
[Wed Apr 23 02:39:03 2014] [error] [client 75.75.80.82] new_class.add_to_class('_meta', Options(meta, **kwargs))
[Wed Apr 23 02:39:03 2014] [error] [client 75.75.80.82] File "/usr/lib/python2.6/site-packages/django/db/models/base.py", line 264, in add_to_class
[Wed Apr 23 02:39:03 2014] [error] [client 75.75.80.82] value.contribute_to_class(cls, name)
[Wed Apr 23 02:39:03 2014] [error] [client 75.75.80.82] File "/usr/lib/python2.6/site-packages/django/db/models/options.py", line 124, in contribute_to_class
[Wed Apr 23 02:39:03 2014] [error] [client 75.75.80.82] self.db_table = truncate_name(self.db_table, connection.ops.max_name_length())
[Wed Apr 23 02:39:03 2014] [error] [client 75.75.80.82] File "/usr/lib/python2.6/site-packages/django/db/__init__.py", line 34, in __getattr__
[Wed Apr 23 02:39:03 2014] [error] [client 75.75.80.82] return getattr(connections[DEFAULT_DB_ALIAS], item)
[Wed Apr 23 02:39:03 2014] [error] [client 75.75.80.82] File "/usr/lib/python2.6/site-packages/django/db/utils.py", line 198, in __getitem__
[Wed Apr 23 02:39:03 2014] [error] [client 75.75.80.82] backend = load_backend(db['ENGINE'])
[Wed Apr 23 02:39:03 2014] [error] [client 75.75.80.82] File "/usr/lib/python2.6/site-packages/django/db/utils.py", line 131, in load_backend
[Wed Apr 23 02:39:03 2014] [error] [client 75.75.80.82] raise ImproperlyConfigured(error_msg)
[Wed Apr 23 02:39:03 2014] [error] [client 75.75.80.82] ImproperlyConfigured: 'mysql' isn't an available database backend.
[Wed Apr 23 02:39:03 2014] [error] [client 75.75.80.82] Try using 'django.db.backends.XXX', where XXX is one of:
[Wed Apr 23 02:39:03 2014] [error] [client 75.75.80.82] u'mysql', u'oracle', u'postgresql_psycopg2', u'sqlite3'
[Wed Apr 23 02:39:03 2014] [error] [client 75.75.80.82] Error was: No module named mysql.base
我的django.wsgi文件内容如下：
import os,sys
apache_configuration = os.path.dirname(__file__)
project = os.path.dirname(apache_configuration)
workspace = os.path.dirname(project)
sys.path.append(workspace)
sys.path.append('/home/ec2-user/Django-1.6/joshsite/joshsite')
sys.path.append('/home/ec2-user/Django-1.6/joshsite')
os.environ['DJANGO_SETTINGS_MODULE'] = 'joshsite.settings'
import django.core.handlers.wsgi
application = django.core.handlers.wsgi.WSGIHandler()
我在httpd.conf中添加了这些内容：
<VirtualHost *:80>
DocumentRoot /home/ec2-user/Django-1.6/joshsite
ServerName ec2-54-187-46-240.us-west-2.compute.amazonaws.com
ErrorLog /home/ec2-user/Django-1.6/joshsite/logs/apache_error.log
CustomLog /home/ec2-user/Django-1.6/joshsite/logs/apache_access.log combined
WSGIScriptAlias / /home/ec2-user/Django-1.6/apache/django.wsgi
<Directory /home/ec2-user/Django-1.6/joshsite/media>
Order deny,allow
Allow from all
</Directory>
<Directory /home/ec2-user/Django-1.6/apache>
Order deny,allow
Allow from all
</Directory>
LogLevel warn
Alias /media/ /ec2-user/Django-1.6/joshsite/media/
</VirtualHost>
这是settings.py的内容：
"""
Django settings for joshsite project.
For more information on this file, see
https://docs.djangoproject.com/en/1.6/topics/settings/
For the full list of settings and their values, see
https://docs.djangoproject.com/en/1.6/ref/settings/
"""
# Build paths inside the project like this: os.path.join(BASE_DIR, ...)
import os
BASE_DIR = os.path.dirname(os.path.dirname(__file__))
# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/1.6/howto/deployment/checklist/
# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = ***
# SECURITY WARNING: don't run with debug turned on in production!
DEBUG = True
TEMPLATE_DEBUG = True
ALLOWED_HOSTS = []
# Application definition
INSTALLED_APPS = (
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
)
MIDDLEWARE_CLASSES = (
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware',
)
ROOT_URLCONF = 'joshsite.urls'
WSGI_APPLICATION = 'joshsite.wsgi.application'
# Database
# https://docs.djangoproject.com/en/1.6/ref/settings/#databases
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.mysql',
'NAME': 'test',
'USER': '**',
'PASSWORD': '**',
'HOST': '',
'PORT': '',
}
}
# Internationalization
# https://docs.djangoproject.com/en/1.6/topics/i18n/
LANGUAGE_CODE = 'en-us'
TIME_ZONE = 'UTC'
USE_I18N = True
USE_L10N = True
USE_TZ = True
# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/1.6/howto/static-files/
STATIC_URL = '/static/'
这是我的urls.py：
from django.conf.urls import patterns, include, url
from django.contrib import admin
admin.autodiscover()
urlpatterns = patterns('',
# Examples:
# url(r'^$', 'joshsite.views.home', name='home'),
# url(r'^blog/', include('blog.urls')),
url(r'^admin/', include(admin.site.urls)),
url(r'^home/', 'joshsite.views.home', name='home'),
)
更新：有时候在访问根目录时，我会遇到404错误：
Request Method: GET
Request URL: http://ec2-54-187-46-240.us-west-2.compute.amazonaws.com/
Using the URLconf defined in joshsite.urls, Django tried these URL patterns, in this order:
^admin/
^home/ [name='home']
The current URL, , didn't match any of these.
You're seeing this error because you have DEBUG = True in your Django settings file. Change that to False, and Django will display a standard 404 page.
Thank you in advance for any assistance.
但刷新后，有时候又会变成500错误，感觉就像是随机选择的一样。
1 个回答
1
检查一下你在 settings.py 文件里的 DATABASE 设置。看起来你的 ENGINE 设置有问题。试着改成：
'ENGINE': 'django.db.backends.mysql',
如果这样还不行，请把你的数据库设置发出来。