settings.py

# Running in development, so use a local MySQL database.
DATABASES = {
    'default': {
        'ENGINE': 'google.appengine.ext.django.backends.rdbms',
        'INSTANCE': 'gaeapp-001:blog',
        'NAME': 'mysql',
        'USER': 'root',
    },
    'app-backend': {
        'ENGINE': 'google.appengine.ext.django.backends.rdbms',
        'INSTANCE': 'gaeapp-001:app-backend',
        'NAME': 'app-backend',
        'USER': 'root',
    }
}