How to solve '[Errno 111] Connection Refused' in Django app on Heroku? - django

Question

I have just added a new app to my Django application, and everything was working fine locally. When I push it Heroku however, I get the following error when trying to access views from the new app, or admin pages related to it. The rest of the site is working fine.
Error (from the heroku application logs):
2017-02-15T10:14:13.305769+00:00 app[web.1]: self.connection = connection_class(self.host, self.port, **connection_params)
2017-02-15T10:14:13.305769+00:00 app[web.1]: File "/app/.heroku/python/lib/python2.7/smtplib.py", line 256, in __init__
2017-02-15T10:14:13.305770+00:00 app[web.1]: (code, msg) = self.connect(host, port)
2017-02-15T10:14:13.305770+00:00 app[web.1]: File "/app/.heroku/python/lib/python2.7/smtplib.py", line 316, in connect
2017-02-15T10:14:13.305771+00:00 app[web.1]: self.sock = self._get_socket(host, port, self.timeout)
2017-02-15T10:14:13.305771+00:00 app[web.1]: return socket.create_connection((host, port), timeout)
2017-02-15T10:14:13.305771+00:00 app[web.1]: File "/app/.heroku/python/lib/python2.7/smtplib.py", line 291, in _get_socket
2017-02-15T10:14:13.305772+00:00 app[web.1]: File "/app/.heroku/python/lib/python2.7/socket.py", line 575, in create_connection
2017-02-15T10:14:13.305772+00:00 app[web.1]: raise err
2017-02-15T10:14:13.305773+00:00 app[web.1]: error: [Errno 111] Connection refused
Settings
# Build paths inside the project like this: os.path.join(BASE_DIR, ...)
import os
BASE_DIR = os.path.dirname(os.path.dirname(os.path.dirname(__file__)))
# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/1.8/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 = False
TEMPLATE_DEBUG = False
ALLOWED_HOSTS = ['*']
ADMINS = (
(***, ***),
)
# Application definition
INSTALLED_APPS = (
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'feed',
'cv',
'hon',
'blog',
'markdown_deux',
)
MIDDLEWARE_CLASSES = (
'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',
'django.middleware.security.SecurityMiddleware',
)
ROOT_URLCONF = 'Site.urls'
TEMPLATES = [
{
'BACKEND': 'django.template.backends.django.DjangoTemplates',
'DIRS': [os.path.join(BASE_DIR, 'templates')],
'APP_DIRS': True,
'OPTIONS': {
'context_processors': [
'django.template.context_processors.debug',
'django.template.context_processors.request',
'django.contrib.auth.context_processors.auth',
'django.contrib.messages.context_processors.messages',
],
},
},
]
WSGI_APPLICATION = 'Site.wsgi.application'
# Database
# https://docs.djangoproject.com/en/1.8/ref/settings/#databases
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.sqlite3',
'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
}
}
# Parse database configuration from $DATABASE_URL
import dj_database_url
DATABASES['default'] =
dj_database_url.config(default=os.environ.get('DATABASE_URL'))
# Honor the 'X-Forwarded-Proto' header for request.is_secure()
SECURE_PROXY_SSL_HEADER = ('HTTP_X_FORWARDED_PROTO', 'https')
# Internationalization
# https://docs.djangoproject.com/en/1.8/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/1.8/howto/static-files/
import os
BASE_DIR = os.path.dirname(os.path.abspath(__file__))
STATIC_ROOT = 'staticfiles'
STATIC_URL = '/static/'
STATICFILES_DIRS = (
os.path.join(BASE_DIR, '../../feed/static/'),
)
I couldn't find much documentation for this particular error, so any help would be much appreciated. What's going wrong? Let me know if there's any more information I can provide that would help.
Update: Regarding the first two comments, my 'application' is a static website apart from the django admin backend, and I'm not trying to send emails anywhere in my code. The page that generates the error logs above is just the homepage of a simple blog, listing all the posts (of which there currently are none, because I'm unable to add any).

Answer 1

I'm not sure what the cause was, but this issue resolved itself after I made a dummy-change to one of the files (adding a space at the end of a line), and re-pushed the application to Heroku.