我设法解决了这个问题。
我正在尝试遍历查询到远程mongo的响应中的文档。我可以连接到mongo并使用游标对象返回来运行查询。但是,当我尝试执行除打印类型以外的任何操作时,我得到的似乎是身份验证错误。
import pymongo
import bson
import sys
from bson import ObjectId
try:
client = pymongo.MongoClient("mongodb://<user>:<password>@<host>:<port>")
db=client.get_database('<database name>')
result=db.listings.find({'import_id':ObjectId('54de51bf7a40554a06000002'),'deleted_at':None})
except pymongo.errors.ServerSelectionTimeoutError as err:
print('mongo login failed')
print(err)
sys.exit()
print type(result)
print str(result)
for item in result:
print 'a'
break
client.close()
Python 2.7.10 Pymongo 3.0.0 蒙哥2.6
这是我得到的堆栈跟踪:
<class 'pymongo.cursor.Cursor'>
<pymongo.cursor.Cursor object at 0x1035c4fd0>
Traceback (most recent call last):
File "feed_id_shove.py", line 25, in <module>
print result.count()
File "/Library/Python/2.7/site-packages/pymongo/cursor.py", line 673, in count
return self.__collection.count(**options)
File "/Library/Python/2.7/site-packages/pymongo/collection.py", line 1009, in count
with self._socket_for_reads() as (sock_info, slave_ok):
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/contextlib.py", line 17, in __enter__
return self.gen.next()
File "/Library/Python/2.7/site-packages/pymongo/mongo_client.py", line 687, in _socket_for_reads
with self._get_socket(read_preference) as sock_info:
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/contextlib.py", line 17, in __enter__
return self.gen.next()
File "/Library/Python/2.7/site-packages/pymongo/mongo_client.py", line 653, in _get_socket
with server.get_socket(self.__all_credentials) as sock_info:
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/contextlib.py", line 17, in __enter__
return self.gen.next()
File "/Library/Python/2.7/site-packages/pymongo/server.py", line 102, in get_socket
with self.pool.get_socket(all_credentials, checkout) as sock_info:
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/contextlib.py", line 17, in __enter__
return self.gen.next()
File "/Library/Python/2.7/site-packages/pymongo/pool.py", line 511, in get_socket
sock_info.check_auth(all_credentials)
File "/Library/Python/2.7/site-packages/pymongo/pool.py", line 276, in check_auth
auth.authenticate(credentials, self)
File "/Library/Python/2.7/site-packages/pymongo/auth.py", line 406, in authenticate
auth_func(credentials, sock_info)
File "/Library/Python/2.7/site-packages/pymongo/auth.py", line 388, in _authenticate_default
return _authenticate_mongo_cr(credentials, sock_info)
File "/Library/Python/2.7/site-packages/pymongo/auth.py", line 381, in _authenticate_mongo_cr
sock_info.command(source, query)
File "/Library/Python/2.7/site-packages/pymongo/pool.py", line 184, in command
codec_options, check, allowable_errors)
File "/Library/Python/2.7/site-packages/pymongo/network.py", line 54, in command
helpers._check_command_response(response_doc, msg, allowable_errors)
File "/Library/Python/2.7/site-packages/pymongo/helpers.py", line 188, in _check_command_response
raise OperationFailure(msg % errmsg, code, response)
pymongo.errors.OperationFailure: command SON([('authenticate', 1), ('user', u'admin'), ('nonce', u'cab3611fe12663d6'), ('key', u'4f9230ab8b035b389dcf735cfbf9f0e8')]) on namespace placester_production.$cmd failed: auth fails
为什么在尝试遍历游标而不是更早时会给我“身份验证失败”的信息?
答案 0 :(得分:0)
我发现了我的问题。使用
try:
# The ismaster command is cheap and does not require auth.
client.admin.command('ismaster')
except:
print("Server not available")
我发现我实际上并没有连接到数据库。这帮助我在用户名和凭据中找到了一个错字。