解密连接到 <project>.meteor.com 上托管的Mongo实例的错误

Question

我想用python连接到mongo的一个实例，该实例与托管在流星网. 我已经通过meteor mongo -U <appname>命令获得了我的应用程序的URL，并且我能够连接。但是，当我连接并尝试做一些简单的事情（枚举“slides”集合中的文档）时，我得到一个错误：

In [1]: import pymongo

In [2]: con = pymongo.Connection("mongodb://client:f066d336-f5bd-1a85-1039-c679fbb645a1@skybreak.member0.mongolayer.com:27017/slides_meteor_com").meteor

In [3]: con.slides.find()
Out[3]: <pymongo.cursor.Cursor at 0x109873690>

In [4]: [ x for x in con.slides.find() ]
---------------------------------------------------------------------------
OperationFailure                          Traceback (most recent call last)
/Users/bensonk/Code/lfnw-elite-talk/<ipython-input-4-2112945d50ca> in <module>()
----> 1 [ x for x in con.slides.find() ]

/Library/Python/2.7/site-packages/pymongo/cursor.pyc in next(self)
    701             raise StopIteration
    702         db = self.__collection.database
--> 703         if len(self.__data) or self._refresh():
    704             if self.__manipulate:
    705                 return db._fix_outgoing(self.__data.pop(0), self.__collection)

/Library/Python/2.7/site-packages/pymongo/cursor.pyc in _refresh(self)
    664                               self.__skip, ntoreturn,
    665                               self.__query_spec(), self.__fields,
--> 666                               self.__uuid_subtype))
    667             if not self.__id:
    668                 self.__killed = True

/Library/Python/2.7/site-packages/pymongo/cursor.pyc in __send_message(self, message)
    626             response = helpers._unpack_response(response, self.__id,
    627                                                 self.__as_class,
--> 628                                                 self.__tz_aware)
    629         except AutoReconnect:
    630             db.connection.disconnect()

/Library/Python/2.7/site-packages/pymongo/helpers.pyc in _unpack_response(response, cursor_id, as_class, tz_aware)
     99             raise AutoReconnect("master has changed")
    100         raise OperationFailure("database error: %s" %
--> 101                                error_object["$err"])
    102 
    103     result = {}

OperationFailure: database error: unauthorized db:meteor lock type:-1 client:173.160.192.81

据我所知，这是mongo暗示我没有权限阅读该集合。我可以通过meteor mongo <projectname从mongo控制台读取，但不能从python读取。我如何从python中读取它？在

Answer 1

看起来您的数据库正在使用身份验证，而您尚未指定用户名/密码。在python中，这是通过db.authenticate(username, password)完成的。详细信息：http://api.mongodb.org/python/2.1.1/api/pymongo/database.html