connecting user based mongodb instance

[thatsk]

Traceback (most recent call last): File "/bin/motop", line 4, in motop.run() File "/usr/lib/python2.7/site-packages/libmotop/motop.py", line 78, in run servers = commonServers(config, arguments) File "/usr/lib/python2.7/site-packages/libmotop/motop.py", line 67, in commonServers return [Server(section, **dict(config.items(section))) for section in config.sections()] File "/usr/lib/python2.7/site-packages/libmotop/server.py", line 30, in init self.tryToConnect() File "/usr/lib/python2.7/site-packages/libmotop/server.py", line 43, in tryToConnect self.connection.admin.authenticate(self.username, self.__password) File "/usr/lib64/python2.7/site-packages/pymongo/database.py", line 1048, in authenticate connect=True) File "/usr/lib64/python2.7/site-packages/pymongo/mongo_client.py", line 505, in _cache_credentials sock_info.authenticate(credentials) File "/usr/lib64/python2.7/site-packages/pymongo/pool.py", line 523, in authenticate auth.authenticate(credentials, self) File "/usr/lib64/python2.7/site-packages/pymongo/auth.py", line 470, in authenticate auth_func(credentials, sock_info) File "/usr/lib64/python2.7/site-packages/pymongo/auth.py", line 450, in _authenticate_default return _authenticate_scram_sha1(credentials, sock_info) File "/usr/lib64/python2.7/site-packages/pymongo/auth.py", line 201, in _authenticate_scram_sha1 res = sock_info.command(source, cmd) File "/usr/lib64/python2.7/site-packages/pymongo/pool.py", line 419, in command collation=collation) File "/usr/lib64/python2.7/site-packages/pymongo/network.py", line 116, in command parse_write_concern_error=parse_write_concern_error) File "/usr/lib64/python2.7/site-packages/pymongo/helpers.py", line 210, in _check_command_response raise OperationFailure(msg % errmsg, code, response) pymongo.errors.OperationFailure: Authentication failed.

[thatsk]

i have installed on centos instance and it has user based authentication to mongodb database but when i run motop it gives above error