Trying to create an index against a mongos version before 2.4.0 will result in an error similar to this:
>>> c.foo.bar.create_index('foo') Traceback (most recent call last): File "<stdin>", line 1, in <module> File "pymongo/collection.py", line 1058, in create_index indexes=[index]) File "pymongo/database.py", line 410, in command read_preference, **kwargs)[0] File "pymongo/database.py", line 321, in _command for doc in cursor: File "pymongo/cursor.py", line 988, in next if len(self.__data) or self._refresh(): File "pymongo/cursor.py", line 932, in _refresh self.__uuid_subtype)) File "pymongo/cursor.py", line 875, in __send_message self.__compile_re) File "pymongo/helpers.py", line 110, in _unpack_response error_object) pymongo.errors.OperationFailure: database error: unrecognized command: createIndexes
Similarly, trying to create a user against mongos previous to 2.4.0:
>>> c.foo.add_user("foo", "bar") Traceback (most recent call last): File "<stdin>", line 1, in <module> File "pymongo/database.py", line 755, in add_user read_preference=ReadPreference.PRIMARY) File "pymongo/database.py", line 410, in command read_preference, **kwargs)[0] File "pymongo/database.py", line 321, in _command for doc in cursor: File "pymongo/cursor.py", line 988, in next if len(self.__data) or self._refresh(): File "pymongo/cursor.py", line 932, in _refresh self.__uuid_subtype)) File "pymongo/cursor.py", line 875, in __send_message self.__compile_re) File "pymongo/helpers.py", line 110, in _unpack_response error_object) pymongo.errors.OperationFailure: database error: unrecognized command: usersInfo
Or delete a user...
>>> c.foo.remove_user("foo") Traceback (most recent call last): File "<stdin>", line 1, in <module> File "pymongo/database.py", line 807, in remove_user writeConcern=self._get_wc_override()) File "pymongo/database.py", line 437, in command uuid_subtype, compile_re, **kwargs)[0] File "pymongo/database.py", line 337, in _command for doc in cursor: File "pymongo/cursor.py", line 1038, in next if len(self.__data) or self._refresh(): File "pymongo/cursor.py", line 982, in _refresh self.__uuid_subtype)) File "pymongo/cursor.py", line 925, in __send_message self.__compile_re) File "pymongo/helpers.py", line 109, in _unpack_response error_object) pymongo.errors.OperationFailure: database error: unrecognized command: dropUser
- is depended on by
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DRIVERS-149 Some MongoDB 2.6 driver releases may not be able to add users or create indexes with mongos versions before 2.4.0
- Closed