pymongo.errors.ServerSelectionTimeoutError: RepliceSetNoPrimary - MongoDB Atlas

Question

問題是，每當（我已經嘗試過 3 次）我在 MongoDB Atlas 上創建一個新集群並使用 PyMongo 在 Python 中連接到它時，前 3-4 次它會無痛地連接，但在一段時間后或休息后，當我重新-連接它會吐出以下錯誤：

pymongo.errors.ServerSelectionTimeoutError: ac-0c87gnx-shard-00-02.jlotl6y.mongodb.net:27017: [WinError 10054] An existing connection was forcibly closed by the remote host,ac-0c87gnx-shard-00-00.jlotl6y.mongodb.net:27017: [WinError 10054] An existing connection was forcibly closed by the remote host,ac-0c87gnx-shard-00-01.jlotl6y.mongodb.net:27017: [WinError 10054] An existing connection was forcibly closed by the remote host, Timeout: 30s, Topology Description: <TopologyDescription id: 62b882a72b6cb4b9ce4e8082, topology_type: ReplicaSetNoPrimary, servers: [<ServerDescription ('ac-0c87gnx-shard-00-00.jlotl6y.mongodb.net', 27017) server_type: Unknown, rtt: None, error=AutoReconnect('ac-0c87gnx-shard-00-00.jlotl6y.mongodb.net:27017: [WinError 10054] An existing connection was forcibly closed by the remote host')>, <ServerDescription ('ac-0c87gnx-shard-00-01.jlotl6y.mongodb.net', 27017) server_type: Unknown, rtt: None, error=AutoReconnect('ac-0c87gnx-shard-00-01.jlotl6y.mongodb.net:27017: [WinError 10054] An existing connection was forcibly closed by the remote host')>, <ServerDescription ('ac-0c87gnx-shard-00-02.jlotl6y.mongodb.net', 27017) server_type: Unknown, rtt: None, error=AutoReconnect('ac-0c87gnx-shard-00-02.jlotl6y.mongodb.net:27017: [WinError 10054] An existing connection was forcibly closed by the remote host')>]>

Python版本： 3.9.7

PyMongo 版本： 4.1.1

PyMongo 連接字符串：

mongodb+srv://ManbirJudge:[my-password]@cluster0.jlotl6y.mongodb.net/?retryWrites=true&w=majority

PyMongo 驅動程序代碼：

import pymongo

client = pymongo.MongoClient("mongodb+srv://ManbirJudge:[my-password]@cluster0.jlotl6y.mongodb.net/?retryWrites=true&w=majority")
client.server_info()  // for testing if connected

Pip 列表輸出（我知道我已經安裝了 Django，但這不是問題）：

Package             Version
------------------- -------
asgiref             3.5.2
cffi                1.15.0
cryptography        37.0.2
dj-database-url     0.5.0
Django              4.0.5
django-cors-headers 3.13.0
django-heroku       0.3.1
django-rest-knox    4.2.0
djangorestframework 3.13.1
dnspython           2.2.1
Pillow              9.1.1
pip                 22.0.4
psycopg2            2.9.3
pycparser           2.21
pymongo             4.1.1
pytz                2022.1
setuptools          62.2.0
sqlparse            0.4.2
tzdata              2022.1
wheel               0.37.1
whitenoise          6.2.0

完整的堆棧跟蹤：

Traceback (most recent call last):
  File "D:\Manbir\Programming\Big Projects\(4) Chat App\server\test.py", line 4, in <module>
    "mongodb+srv://ManbirJudge:rNn2qN8GBroMd2OJ@cluster0.jlotl6y.mongodb.net/?retryWrites=true&w=majority")
  File "D:\Manbir\Programming\Big Projects\(4) Chat App\server\venv\lib\site-packages\pymongo\mongo_client.py", line 1724, in server_info
    self.admin.command(
  File "D:\Manbir\Programming\Big Projects\(4) Chat App\server\venv\lib\site-packages\pymongo\database.py", line 721, in command
    with self.__client._socket_for_reads(read_preference, session) as (
  File "D:\Manbir\Programming\Big Projects\(4) Chat App\server\venv\lib\site-packages\pymongo\mongo_client.py", line 1235, in _socket_for_reads
    server = self._select_server(read_preference, session)
  File "D:\Manbir\Programming\Big Projects\(4) Chat App\server\venv\lib\site-packages\pymongo\mongo_client.py", line 1196, in _select_server
    server = topology.select_server(server_selector)
  File "D:\Manbir\Programming\Big Projects\(4) Chat App\server\venv\lib\site-packages\pymongo\topology.py", line 251, in select_server
    servers = self.select_servers(selector, server_selection_timeout, address)
  File "D:\Manbir\Programming\Big Projects\(4) Chat App\server\venv\lib\site-packages\pymongo\topology.py", line 212, in select_servers
    server_descriptions = self._select_servers_loop(selector, server_timeout, address)
  File "D:\Manbir\Programming\Big Projects\(4) Chat App\server\venv\lib\site-packages\pymongo\topology.py", line 227, in _select_servers_loop
    raise ServerSelectionTimeoutError(
pymongo.errors.ServerSelectionTimeoutError: ac-0c87gnx-shard-00-00.jlotl6y.mongodb.net:27017: [WinError 10054] An existing connection was forcibly closed by the remote host,ac-0c87gnx-shard-00-01.jlotl6y.mongodb.net:27017: [WinError 10054] An existing connection was forcibly closed by the remote host,ac-0c87gnx-shard-00-02.jlotl6y.mongodb.net:27017: [WinError 10054] An existing connection was forcibly closed by the remote host, Timeout: 30s, Topology Description: <TopologyDescription id: 62b885958215d15ac9da754e, topology_type: ReplicaSetNoPrimary, servers: [<ServerDescription ('ac-0c87gnx-shard-00-00.jlotl6y.mongodb.net', 27017) server_type: Unknown, rtt: None, error=AutoReconnect('ac-0c87gnx-shard-00-00.jlotl6y.mongodb.net:27017: [WinError 10054] An existing connection was forcibly closed by the remote host')>, <ServerDescription ('ac-0c87gnx-shard-00-01.jlotl6y.mongodb.net', 27017) server_type: Unknown, rtt: None, error=AutoReconnect('ac-0c87gnx-shard-00-01.jlotl6y.mongodb.net:27017: [WinError 10054] An existing connection was forcibly closed by the remote host')>, <ServerDescription ('ac-0c87gnx-shard-00-02.jlotl6y.mongodb.net', 27017) server_type: Unknown, rtt: None, error=AutoReconnect('ac-0c87gnx-shard-00-02.jlotl6y.mongodb.net:27017: [WinError 10054] An existing connection was forcibly closed by the remote host')>]>

請不要不喜歡這個問題，我已經檢查了 StackOverflow 上的其他解決方案，但沒有適合我的解決方案。

或者我應該只使用 MongoDB 的本地服務器而不是 Atlas？

Answer 1

MongoDB Atlas “只允許客戶端從項目的IP 訪問列表中的條目連接到數據庫部署”。

即使設置了初始 IP 地址以訪問 Atlas，您也可能需要更改它和/或添加更多 IP 地址。 這可能是需要的，例如，如果您從不同的位置（家庭/工作/學校）通過不同的代理/VPN 進行連接，或者甚至您的 Internet 服務提供商 (ISP) 可能會更改您面向公眾的 IP 地址（此一年發生在我身上好幾次）。

Atlas 將查看它所看到的 IP 地址，並將其與項目的訪問列表進行比較，並且僅在存在時才允許連接。 如果沒有，您的連接可能會被拒絕和/或超時。

Atlas 允許在訪問列表中設置IP 地址、CIDR 塊或安全組 ID（僅限 AWS） ，以便您可以為您的應用程序定制訪問權限。