Heroku和Django随机崩溃 [英] Heroku and Django random crashes

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本文介绍了Heroku和Django随机崩溃的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

有时,当我推到英雄时,我会收到一条消息:

 应用程序错误
应用程序和您的页面无法提供。请稍后重试。

如果您是应用程序所有者,请查看日志以了解详细信息。

然后运行命令

  $ heroku restart 

几次,其突然工作正常。



来自heroku日志的错误消息很长,以下是底部的代码段:

  2013-08-25T03:30:26.824149 + 00:00 app [web.1]:self._setup(name)
2013-08-25T03:30:26.824453 + 00:00 app [web.1]:文件/app/.heroku/python/lib/python2.7/site-packages/django/conf/__init__.py,第132行,__init__
2013-08-25T03 :30:26.824453 + 00:00 app [web.1]:mod = importlib.import_module(self.SETTINGS_MODULE)
2013-08-25T03:30:26.824453 + 00:00 app [web.1]:文件/app/.heroku/python/lib/python2.7/site-packages/django/utils/importlib.py,第35行,import_module
2013-08-25T03:30:26.824453 + 00:00 app [web.1]:self._wrapped =设置(settings_module)
2013-08-25T03:30:26.824453 + 00:00 app [web.1]:__import __(name)
2013-08 -25T03:30:26.824453 + 0 0:00 app [web.1]:文件/app/zinnia/settings.py,第5行,< module>
2013-08-25T03:30:26.824453 + 00:00 app [web.1]:('http://django-blog-zinnia.com/xmlrpc/',))
2013- 08-25T03:30:26.824453 + 00:00 app [web.1]:文件/app/.heroku/python/lib/python2.7/site-packages/django/conf/__init__.py,第53行,在__getattr__
2013-08-25T03:30:26.824453 + 00:00 app [web.1]:self._setup(name)
2013-08-25T03:30:26.824759 + 00:00 app [web.1]:文件/app/.heroku/python/lib/python2.7/site-packages/django/conf/__init__.py,第152行,__init__
2013-08-25T03: 30:26.824759 + 00:00 app [web.1]:文件/app/.heroku/python/lib/python2.7/site-packages/django/conf/__init__.py,第48行_setup
2013-08-25T03:30:26.824759 + 00:00 app [web.1]:self._wrapped =设置(settings_module)
2013-08-25T03:30:26.824759 + 00:00 app [web .1]:raise不正确配置(SECRET_KEY设置不能为空。)
2013-08-25T03:30:26.824759 + 00:00 app [web.1]:不正确的配置:SECRET_KEY设置不能空。
2013-08-25T03:30:26.825073 + 00:00 app [web.1]:2013-08-25 03:30:26 [7] [INFO]工人退出(pid:7)
2013-08-25T03:30:26.972807 + 00:00 app [web.1]:2013-08-25 03:30:26 [2] [INFO]关闭:Master
2013-08-25T03 :30:26.972807 + 00:00 app [web.1]:2013-08-25 03:30:26 [2] [INFO]原因:工人无法启动。
2013-08-25T03:30:27.576714 + 00:00 heroku [web.1]:进程退出状态0
2013-08-25T03:30:28.190167 + 00:00 heroku [web。 1]:进程退出状态3
2013-08-25T03:30:28.205185 + 00:00 heroku [web.1]:状态从开始变为崩溃
/ pre>

有没有人有这种事情的经验?



编辑:这是我的settings.py (假秘密):

 #用于myblog项目的Django设置。 

#注意:截至25/08/13,所有这些都配置为在Heroku上使用,需要
#使其更通用

DEBUG = False
TEMPLATE_DEBUG = False


SECRET_KEY ='ljw +(6 ^ 2fhoa ^ 1e _- $ - u(tk6​​ = vig * dw)r @ s640o ^ t2b)^ x * h'

ADMINS =(
#('Your Name','your_email@example.com'),


MANAGERS = ADMINS

#警告:被覆盖到
DATABASES = {
'default':{
'ENGINE':'django.db.backends.sqlite3',#添加'postgresql_psycopg2','mysql','sqlite3'或'oracle'
'NAME':'/home/mike/dev/myblog/myblog.db',#或使用sqlite3的数据库文件路径。
#以下设置不与sqlite3一起使用:
'USER':'',
'PASSWORD':'',
'HOST':'',#空本地主机通过域套接字或本地主机为127.0.0.1通过TCP。
'PORT':'',#设置为空字符串为默认值。
}
}

#对本网站有效的主机/域名;如果DEBUG为False,则需要
#请参阅https://docs.djangoproject.com/en/1.5/ref/settings/#allowed-hosts
ALLOWED_HOSTS = []

#本安装的本地时区。可以在这里找到选择:
#http://en.wikipedia.org/wiki/List_of_tz_zones_by_name
#虽然并不是所有的操作系​​统都可以选择所有选项。
#在Windows环境中,必须将其设置为系统时区。
TIME_ZONE ='GMT'

#此安装的语言代码。所有选择可以在这里找到:
#http://www.i18nguy.com/unicode/language-identifiers.html
LANGUAGE_CODE ='en-uk'

SITE_ID = 1

#如果将其设置为False,Django将进行一些优化,以便
#加载国际化机器。
USE_I18N = True

#如果将其设置为False,Django将不会根据当前语言环境格式设置日期,数字和
#日历。
USE_L10N = True

#如果将其设置为False,Django将不会使用时区感知数据时间。
USE_TZ = True

#将保存用户上传文件的目录的绝对文件系统路径。
#示例:/var/www/example.com/media/
MEDIA_ROOT ='/ app / media'

ZINNIA_UPLOAD_TO ='uploads'

#处理从MEDIA_ROOT提供的媒体的URL。确保使用
#尾部斜线。
#示例:http://example.com/media/,http://media.example.com/
MEDIA_URL ='/ media /'

#静态文件的绝对路径应该收集到。
#不要把任何东西放在这个目录下;在应用程序的static /子目录和STATICFILES_DIRS中存储静态文件
#。
#示例:/var/www/example.com/static/
STATICFILES_DIR =('zinna / static')

#静态根配置
STATIC_ROOT ='/ app'

#静态文件的URL前缀。
#示例:http://example.com/static/,http://static.example.com/
#STATIC_URL ='/ home / mike / dev / myblog / static /'
STATIC_URL ='/ static /'

#静态文件的附加位置
STATICFILES_DIRS =(
#将字符串放在这里,如/ home / html /静态或C:/ www / django / static
#即使在Windows上也可以使用正斜杠
#不要忘记使用绝对路径,而不是相对路径
'/ home / mike / dev / myblog / zinnia / static',


#知道如何在
#各个位置找到静态文件的finder类的列表。
STATICFILES_FINDERS =(
'django.contrib.staticfiles.finders.FileSystemFinder',
'django.contrib.staticfiles.finders.AppDirectoriesFinder',
#'django.contrib.staticfiles .finders.DefaultStorageFinder',


#知道如何从各种来源导入模板的可调用列表。
TEMPLATE_LOADERS =(
'django.template.loaders.filesystem.Loader',
'django.template.loaders.app_directories.Loader',
#'django.template.loaders .eggs.Loader',


MIDDLEWARE_CLASSES =(
'django.middleware.common.CommonMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware ',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
#取消注释下一行的简单点击保护:
#'django.middleware.clickjacking.XFrameOptionsMiddleware',


ROOT_URLCONF ='myblog.urls'

#Django的runserver使用的WSGI应用程序的Python路径。
WSGI_APPLICATION ='myblog.wsgi.application'

TEMPLATE_DIRS =(
#将字符串放在这里,像/ home / html / django_templates或C:/ www / django / template
#总是使用正斜杠,甚至在Windows上
#不要忘记使用绝对路径,而不是相对路径
'templates',


TEMPLATE_CONTEXT_PROCESSORS =(
'django.contrib.auth.context_processors.auth',
'django.core.context_processors.i18n',
'django.core.context_processors .request',
'django.core.context_processors.media',
'zinnia.context_processors.version',#可选
#'zinnia.context_processors.media',#trying to solve heroku这个
)的痛苦

INSTALLED_APPS =(
'django.contrib.auth',
'django.contrib.contenttypes',
'django。 contrib.sessions',
'django.contrib.sites',
'django.contrib.messages',
'django.contrib.st aticfiles',
#取消注释下一行以启用管理员:
'django.contrib.admin',
'django.contrib.comments',
#取消注释下一行启用管理员文档:
'django.contrib.admindocs',
'tagging',
'mptt',
'zinnia',
'blog',


#样本记录配置。通过此配置执行的唯一有形日志
#是在DEBUG = False时向每个HTTP 500错误发送电子邮件至
#的网站管理员。
#有关如何自定义日志配置的详细信息,请参阅http://docs.djangoproject.com/en/dev/topics/logging for
#。
LOGGING = {
'version':1,
'disable_existing_loggers':False,
'filters':{
'require_debug_false':{
' ()':'django.utils.log.RequireDebugFalse'
}
},
'handlers':{
'mail_admins':{
'level' 'ERROR',
'filters':['require_debug_false'],
'class':'django.utils.log.AdminEmailHandler'
}
},
'logger':{
'django.request':{
'handlers':['mail_admins'],
'level':'ERROR',
'propagate'真的,
},
}
}

刚刚添加了,所以heroku可以工作:
import dj_database_url
DATABASES ['default' ] = dj_database_url.config()

#为request.is_secure()注册'X-Forwarded-Proto'标题
SECURE_PROXY_SSL_HEADER =('HT TP_X_FORWARDED_PROTO','https')

#允许所有主机头
ALLOWED_HOSTS = ['*']


解决方案

问题在于你有一个陈旧的设置文件。确保从工作目录中清除所有 .pyc 文件(并将它们添加到 .gitignore )。



此外,您的静态文件还有无效路径 / home / mike / dev / myblog / zinnia / static',您应该阅读这篇文章,介绍如何为heroku上的静态资产设置django。 p>

Sometimes when I push to heroku I get a message saying:

Application Error
An error occurred in the application and your page could not be served. Please try again in a few moments.

If you are the application owner, check your logs for details.

I then run the command

$ heroku restart

a few times and its suddenly working fine again.

The error message from heroku logs is very long, here is a snippet from the bottom:

2013-08-25T03:30:26.824149+00:00 app[web.1]:     self._setup(name)
2013-08-25T03:30:26.824453+00:00 app[web.1]:   File "/app/.heroku/python/lib/python2.7/site-packages/django/conf/__init__.py", line 132, in __init__
2013-08-25T03:30:26.824453+00:00 app[web.1]:     mod = importlib.import_module(self.SETTINGS_MODULE)
2013-08-25T03:30:26.824453+00:00 app[web.1]:   File "/app/.heroku/python/lib/python2.7/site-packages/django/utils/importlib.py", line 35, in import_module
2013-08-25T03:30:26.824453+00:00 app[web.1]:     self._wrapped = Settings(settings_module)
2013-08-25T03:30:26.824453+00:00 app[web.1]:     __import__(name)
2013-08-25T03:30:26.824453+00:00 app[web.1]:   File "/app/zinnia/settings.py", line 5, in <module>
2013-08-25T03:30:26.824453+00:00 app[web.1]:     ('http://django-blog-zinnia.com/xmlrpc/',))
2013-08-25T03:30:26.824453+00:00 app[web.1]:   File "/app/.heroku/python/lib/python2.7/site-packages/django/conf/__init__.py", line 53, in __getattr__
2013-08-25T03:30:26.824453+00:00 app[web.1]:     self._setup(name)
2013-08-25T03:30:26.824759+00:00 app[web.1]:   File "/app/.heroku/python/lib/python2.7/site-packages/django/conf/__init__.py", line 152, in __init__
2013-08-25T03:30:26.824759+00:00 app[web.1]:   File "/app/.heroku/python/lib/python2.7/site-packages/django/conf/__init__.py", line 48, in _setup
2013-08-25T03:30:26.824759+00:00 app[web.1]:     self._wrapped = Settings(settings_module)
2013-08-25T03:30:26.824759+00:00 app[web.1]:     raise ImproperlyConfigured("The SECRET_KEY setting must not be empty.")
2013-08-25T03:30:26.824759+00:00 app[web.1]: ImproperlyConfigured: The SECRET_KEY setting must not be empty.
2013-08-25T03:30:26.825073+00:00 app[web.1]: 2013-08-25 03:30:26 [7] [INFO] Worker exiting (pid: 7)
2013-08-25T03:30:26.972807+00:00 app[web.1]: 2013-08-25 03:30:26 [2] [INFO] Shutting down: Master
2013-08-25T03:30:26.972807+00:00 app[web.1]: 2013-08-25 03:30:26 [2] [INFO] Reason: Worker failed to boot.
2013-08-25T03:30:27.576714+00:00 heroku[web.1]: Process exited with status 0
2013-08-25T03:30:28.190167+00:00 heroku[web.1]: Process exited with status 3
2013-08-25T03:30:28.205185+00:00 heroku[web.1]: State changed from starting to crashed

Does anyone have experience of this sort of thing?

EDIT: Here are my settings.py (fake SECRET):

# Django settings for myblog project.

#Note: as of 25/08/13 all this is configured for use on Heroku, need
#to make it more generic

DEBUG = False
TEMPLATE_DEBUG = False


SECRET_KEY = 'ljw+(6^2fhoa^1e_-$-u(tk6=vig*dw)r@s640o^t2b)^x*(^h'

ADMINS = (
    # ('Your Name', 'your_email@example.com'),
)

MANAGERS = ADMINS

#Warning:being overriden towards the end
DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.sqlite3', # Add 'postgresql_psycopg2', 'mysql', 'sqlite3' or 'oracle'.
        'NAME': '/home/mike/dev/myblog/myblog.db',                      # Or path to database file if using sqlite3.
        # The following settings are not used with sqlite3:
        'USER': '',
        'PASSWORD': '',
        'HOST': '',                      # Empty for localhost through domain sockets or '127.0.0.1' for localhost through TCP.
        'PORT': '',                      # Set to empty string for default.
    }
}

# Hosts/domain names that are valid for this site; required if DEBUG is False
# See https://docs.djangoproject.com/en/1.5/ref/settings/#allowed-hosts
ALLOWED_HOSTS = []

# Local time zone for this installation. Choices can be found here:
# http://en.wikipedia.org/wiki/List_of_tz_zones_by_name
# although not all choices may be available on all operating systems.
# In a Windows environment this must be set to your system time zone.
TIME_ZONE = 'GMT'

# Language code for this installation. All choices can be found here:
# http://www.i18nguy.com/unicode/language-identifiers.html
LANGUAGE_CODE = 'en-uk'

SITE_ID = 1

# If you set this to False, Django will make some optimizations so as not
# to load the internationalization machinery.
USE_I18N = True

# If you set this to False, Django will not format dates, numbers and
# calendars according to the current locale.
USE_L10N = True

# If you set this to False, Django will not use timezone-aware datetimes.
USE_TZ = True

# Absolute filesystem path to the directory that will hold user-uploaded files.
# Example: "/var/www/example.com/media/"
MEDIA_ROOT = '/app/media'

ZINNIA_UPLOAD_TO='uploads'

# URL that handles the media served from MEDIA_ROOT. Make sure to use a
# trailing slash.
# Examples: "http://example.com/media/", "http://media.example.com/"
MEDIA_URL = '/media/'

# Absolute path to the directory static files should be collected to.
# Don't put anything in this directory yourself; store your static files
# in apps' "static/" subdirectories and in STATICFILES_DIRS.
# Example: "/var/www/example.com/static/"
STATICFILES_DIR = ('zinna/static')

# Static root configuration
STATIC_ROOT = '/app'

# URL prefix for static files.
# Example: "http://example.com/static/", "http://static.example.com/"
#STATIC_URL = '/home/mike/dev/myblog/static/'
STATIC_URL = '/static/'

# Additional locations of static files
STATICFILES_DIRS = (
    # Put strings here, like "/home/html/static" or "C:/www/django/static".
    # Always use forward slashes, even on Windows.
    # Don't forget to use absolute paths, not relative paths.
    '/home/mike/dev/myblog/zinnia/static',
)

# List of finder classes that know how to find static files in
# various locations.
STATICFILES_FINDERS = (
    'django.contrib.staticfiles.finders.FileSystemFinder',
    'django.contrib.staticfiles.finders.AppDirectoriesFinder',
#    'django.contrib.staticfiles.finders.DefaultStorageFinder',
)

# List of callables that know how to import templates from various sources.
TEMPLATE_LOADERS = (
    'django.template.loaders.filesystem.Loader',
    'django.template.loaders.app_directories.Loader',
    #    'django.template.loaders.eggs.Loader',
)

MIDDLEWARE_CLASSES = (
    'django.middleware.common.CommonMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    # Uncomment the next line for simple clickjacking protection:
    # 'django.middleware.clickjacking.XFrameOptionsMiddleware',
)

ROOT_URLCONF = 'myblog.urls'

# Python dotted path to the WSGI application used by Django's runserver.
WSGI_APPLICATION = 'myblog.wsgi.application'

TEMPLATE_DIRS = (
    # Put strings here, like "/home/html/django_templates" or "C:/www/django/templates".
    # Always use forward slashes, even on Windows.
    # Don't forget to use absolute paths, not relative paths.
    'templates',
)

TEMPLATE_CONTEXT_PROCESSORS = (
  'django.contrib.auth.context_processors.auth',
  'django.core.context_processors.i18n',
  'django.core.context_processors.request',
  'django.core.context_processors.media',
  'zinnia.context_processors.version', # Optional
#  'zinnia.context_processors.media', #trying to solve heroku pain with this
  )

INSTALLED_APPS = (
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.sites',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    # Uncomment the next line to enable the admin:
    'django.contrib.admin',
    'django.contrib.comments',
    # Uncomment the next line to enable admin documentation:
    'django.contrib.admindocs',
    'tagging',
    'mptt',
    'zinnia',
    'blog',
)

# A sample logging configuration. The only tangible logging
# performed by this configuration is to send an email to
# the site admins on every HTTP 500 error when DEBUG=False.
# See http://docs.djangoproject.com/en/dev/topics/logging for
# more details on how to customize your logging configuration.
LOGGING = {
    'version': 1,
    'disable_existing_loggers': False,
    'filters': {
        'require_debug_false': {
            '()': 'django.utils.log.RequireDebugFalse'
        }
    },
    'handlers': {
        'mail_admins': {
            'level': 'ERROR',
            'filters': ['require_debug_false'],
            'class': 'django.utils.log.AdminEmailHandler'
        }
    },
    'loggers': {
        'django.request': {
            'handlers': ['mail_admins'],
            'level': 'ERROR',
            'propagate': True,
        },
    }
}

#added just now so heroku can work:
import dj_database_url
DATABASES['default'] =  dj_database_url.config()

# Honor the 'X-Forwarded-Proto' header for request.is_secure()
SECURE_PROXY_SSL_HEADER = ('HTTP_X_FORWARDED_PROTO', 'https')

# Allow all host headers
ALLOWED_HOSTS = ['*']

解决方案

The problem is you have a stale settings file somewhere. Make sure you purge all .pyc files from your working directory (and add them to .gitignore).

In addition you have invalid paths /home/mike/dev/myblog/zinnia/static', for your static files; you should read this article that explains how to setup django for static assets on heroku.

这篇关于Heroku和Django随机崩溃的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

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