$ ./noc test
Traceback (most recent call last):
  File "manage.py", line 45, in <module>
    execute_from_command_line(sys.argv)
  File "/usr/lib/python2.7/site-packages/django/core/management/__init__.py", line 443, in execute_from_command_line
    utility.execute()
  File "/usr/lib/python2.7/site-packages/django/core/management/__init__.py", line 382, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/usr/lib/python2.7/site-packages/django/core/management/__init__.py", line 261, in fetch_command
    klass = load_command_class(app_name, subcommand)
  File "/usr/lib/python2.7/site-packages/django/core/management/__init__.py", line 69, in load_command_class
    module = import_module('%s.management.commands.%s' % (app_name, name))
  File "/usr/lib/python2.7/site-packages/django/utils/importlib.py", line 35, in import_module
    __import__(name)
  File "/opt/noc/main/management/commands/test.py", line 17, in <module>
    from south.management.commands import MigrateAndSyncCommand
  File "/usr/lib/python2.7/site-packages/south/management/commands/__init__.py", line 10, in <module>
    import django.template.loaders.app_directories
  File "/usr/lib/python2.7/site-packages/django/template/loaders/app_directories.py", line 21, in <module>
    mod = import_module(app)
  File "/usr/lib/python2.7/site-packages/django/utils/importlib.py", line 35, in import_module
    __import__(name)
  File "/usr/lib/python2.7/site-packages/django/contrib/admin/__init__.py", line 4, in <module>
    from django.contrib.admin.options import ModelAdmin, HORIZONTAL, VERTICAL
  File "/usr/lib/python2.7/site-packages/django/contrib/admin/options.py", line 12, in <module>
    from django.views.decorators.csrf import csrf_protect
  File "/usr/lib/python2.7/site-packages/django/views/decorators/csrf.py", line 3, in <module>
    from django.middleware.csrf import CsrfViewMiddleware, get_token
  File "/usr/lib/python2.7/site-packages/django/middleware/csrf.py", line 14, in <module>
    from django.utils.cache import patch_vary_headers
  File "/usr/lib/python2.7/site-packages/django/utils/cache.py", line 25, in <module>
    from django.core.cache import get_cache
  File "/usr/lib/python2.7/site-packages/django/core/cache/__init__.py", line 187, in <module>
    cache = get_cache(DEFAULT_CACHE_ALIAS)
  File "/usr/lib/python2.7/site-packages/django/core/cache/__init__.py", line 179, in get_cache
    cache = backend_cls(location, params)
  File "/opt/noc/lib/cache.py", line 108, in __init__
    self._collection = get_db().noc.cache
  File "/opt/noc/lib/nosql.py", line 92, in get_db
    return mongoengine.connection._get_db()
  File "/usr/lib/python2.7/site-packages/mongoengine/connection.py", line 143, in get_db
    source=conn_settings['authentication_source'])
  File "/usr/lib/python2.7/site-packages/pymongo/database.py", line 978, in authenticate
    self.connection._cache_credentials(self.name, credentials)
  File "/usr/lib/python2.7/site-packages/pymongo/mongo_client.py", line 467, in _cache_credentials
    auth.authenticate(credentials, sock_info, self.__simple_command)
  File "/usr/lib/python2.7/site-packages/pymongo/auth.py", line 475, in authenticate
    auth_func(credentials[1:], sock_info, cmd_func)
  File "/usr/lib/python2.7/site-packages/pymongo/auth.py", line 452, in _authenticate_default
    return _authenticate_mongo_cr(credentials, sock_info, cmd_func)
  File "/usr/lib/python2.7/site-packages/pymongo/auth.py", line 445, in _authenticate_mongo_cr
    cmd_func(sock_info, source, query)
  File "/usr/lib/python2.7/site-packages/pymongo/mongo_client.py", line 703, in __simple_command
    helpers._check_command_response(response, None, msg)
  File "/usr/lib/python2.7/site-packages/pymongo/helpers.py", line 182, in _check_command_response
    raise OperationFailure(msg % errmsg, code, response)
pymongo.errors.OperationFailure: command SON([('authenticate', 1), ('user', u'noc'), ('nonce', u'xxxxxxxxxxxx'), ('key', u'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx')]) on namespace noc_test.$cmd failed: auth failed