I am new to Django, and I set up a mysites app using the tutorial given here
I followed this guide to setup mongodb with Django using mongoengine
However, I keep getting the following error everytime I try running the server:
(myVirtEnv_1) [root@sandbox1 django-mongoadmin]# python mysite/manage.py runserver 99
Traceback (most recent call last):
File "/root/blrasp/myVirtEnv_1/lib/python3.4/site-packages/mongoengine/connection.py", line 124, in get_connection
_connections[alias] = connection if connection else connection_class(**conn_settings)
File "/root/blrasp/myVirtEnv_1/lib/python3.4/site-packages/pymongo/mongo_client.py", line 422, in __init__
for k, v in keyword_opts.items())
File "/root/blrasp/myVirtEnv_1/lib/python3.4/site-packages/pymongo/mongo_client.py", line 422, in <genexpr>
for k, v in keyword_opts.items())
File "/root/blrasp/myVirtEnv_1/lib/python3.4/site-packages/pymongo/common.py", line 539, in validate
value = validator(option, value)
File "/root/blrasp/myVirtEnv_1/lib/python3.4/site-packages/pymongo/common.py", line 301, in validate_read_preference
raise TypeError("%r is not a read preference." % (value,))
TypeError: False is not a read preference.
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "mysite/manage.py", line 22, in <module>
execute_from_command_line(sys.argv)
File "/root/blrasp/myVirtEnv_1/lib/python3.4/site-packages/django/core/management/__init__.py", line 367, in execute_from_command_line
utility.execute()
File "/root/blrasp/myVirtEnv_1/lib/python3.4/site-packages/django/core/management/__init__.py", line 316, in execute
settings.INSTALLED_APPS
File "/root/blrasp/myVirtEnv_1/lib/python3.4/site-packages/django/conf/__init__.py", line 53, in __getattr__
self._setup(name)
File "/root/blrasp/myVirtEnv_1/lib/python3.4/site-packages/django/conf/__init__.py", line 41, in _setup
self._wrapped = Settings(settings_module)
File "/root/blrasp/myVirtEnv_1/lib/python3.4/site-packages/django/conf/__init__.py", line 97, in __init__
mod = importlib.import_module(self.SETTINGS_MODULE)
File "/root/blrasp/myVirtEnv_1/lib64/python3.4/importlib/__init__.py", line 109, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 2254, in _gcd_import
File "<frozen importlib._bootstrap>", line 2237, in _find_and_load
File "<frozen importlib._bootstrap>", line 2226, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 1200, in _load_unlocked
File "<frozen importlib._bootstrap>", line 1129, in _exec
File "<frozen importlib._bootstrap>", line 1471, in exec_module
File "<frozen importlib._bootstrap>", line 321, in _call_with_frames_removed
File "/root/blrasp/django-mongoadmin/mysite/mysite/settings.py", line 137, in <module>
connect(MONGO_DATABASE_NAME, host=MONGO_HOST, port=MONGO_PORT)
File "/root/blrasp/myVirtEnv_1/lib/python3.4/site-packages/mongoengine/connection.py", line 164, in connect
return get_connection(alias)
File "/root/blrasp/myVirtEnv_1/lib/python3.4/site-packages/mongoengine/connection.py", line 126, in get_connection
raise ConnectionError("Cannot connect to database %s :\n%s" % (alias, e))
mongoengine.connection.ConnectionError: Cannot connect to database default :
False is not a read preference.
Here is my settings.py file:
(myVirtEnv_1) [root@sandbox1 django-mongoadmin]# cat mysite/mysite/settings.py
"""
Django settings for mysite project.
Generated by 'django-admin startproject' using Django 1.10.5.
For more information on this file, see
https://docs.djangoproject.com/en/1.10/topics/settings/
For the full list of settings and their values, see
https://docs.djangoproject.com/en/1.10/ref/settings/
"""
import os
# Build paths inside the project like this: os.path.join(BASE_DIR, ...)
BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/1.10/howto/deployment/checklist/
# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = '(m!6up^g!2k=7xu5se_jnr9q7=1uyko6sjf%re)yh%tpx1(a8+'
# SECURITY WARNING: don't run with debug turned on in production!
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',
'mongoadmin',
'mongoengine.django.mongo_auth',
]
MIDDLEWARE = [
'django.middleware.security.SecurityMiddleware',
'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 = 'mysite.urls'
TEMPLATES = [
{
'BACKEND': 'django.template.backends.django.DjangoTemplates',
'DIRS': [],
'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 = 'mysite.wsgi.application'
# Database
# https://docs.djangoproject.com/en/1.10/ref/settings/#databases
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.dummy',
}
}
# Password validation
# https://docs.djangoproject.com/en/1.10/ref/settings/#auth-password-validators
AUTH_PASSWORD_VALIDATORS = [
{
'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
},
{
'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
},
{
'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
},
{
'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
},
]
# Internationalization
# https://docs.djangoproject.com/en/1.10/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/1.10/howto/static-files/
STATIC_URL = '/static/'
AUTHENTICATION_BACKENDS = (
'mongoengine.django.auth.MongoEngineBackend',
)
AUTH_USER_MODEL = 'mongo_auth.MongoUser'
MONGOENGINE_USER_DOCUMENT = 'mongoengine.django.auth.User'
SESSION_ENGINE = 'mongoengine.django.sessions'
SESSION_SERIALIZER = 'mongoengine.django.sessions.BSONSerializer'
from mongoengine import connect
MONGO_DATABASE_NAME = 'test'
MONGO_HOST = '127.0.0.1'
MONGO_PORT = 27017
connect(MONGO_DATABASE_NAME, host=MONGO_HOST, port=MONGO_PORT)
I have alread checked the following:
MongoDB is Definitely up and running
I checked whether the mongoDB server is accessible by changing the MONGO_HOST value from '127.0.0.1' to '0.0.0.0'. Same error.
Can someone tell me why I am getting this error? Any help is greatly appreciated
Environment:
OS: RHEL 7.3
Python: 3.4
Django: 1.10
MongoDB: 2.6.12
PyMongo: 3.4
MongoEngine: 0.11.0
You seem to be having the issue listed here: https://github.com/MongoEngine/mongoengine/issues/935 Try downgrading Pymongo to 2.8.
Also look here: Django DB Connection with mangoDB using mangoengine gives me error?