Details
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Question
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Status: Closed
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Unknown
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Resolution: Works as Designed
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None
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Description
Used:
python=3.10.2
pymongo=4.0.1 (problem)
pymongo=3.12.0 (works)
db version v4.2.8
no tls (dev-setup)
In [3]: from pymongo import MongoClient
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...:
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...: client = MongoClient()
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...: db = client["mydb"]
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...: [*db.controlUnit.find()]
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---------------------------------------------------------------------------
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ServerSelectionTimeoutError Traceback (most recent call last)
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Input In [3], in <module>
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3 client = MongoClient()
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4 db = client["hpf-larss-data-access"]
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----> 5 [*db.controlUnit.find()]File C:\Anaconda3\lib\site-packages\pymongo\cursor.py:1159, in Cursor.next(self)
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1157 if self.__empty:
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1158 raise StopIteration
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-> 1159 if len(self.__data) or self._refresh():
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1160 return self.__data.popleft()
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1161 else:File C:\Anaconda3\lib\site-packages\pymongo\cursor.py:1057, in Cursor._refresh(self)
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1054 return len(self.__data)
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1056 if not self.__session:
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-> 1057 self.__session = self.__collection.database.client._ensure_session()
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1059 if self.__id is None: # Query
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1060 if (self.__min or self.__max) and not self.__hint:File C:\Anaconda3\lib\site-packages\pymongo\mongo_client.py:1603, in MongoClient._ensure_session(self, session)
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1598 return session
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1600 try:
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1601 # Don't make implicit sessions causally consistent. Applications
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1602 # should always opt-in.
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-> 1603 return self.__start_session(True, causal_consistency=False)
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1604 except (ConfigurationError, InvalidOperation):
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1605 # Sessions not supported.
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1606 return NoneFile C:\Anaconda3\lib\site-packages\pymongo\mongo_client.py:1553, in MongoClient.__start_session(self, implicit, **kwargs)
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1551 def __start_session(self, implicit, **kwargs):
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1552 # Raises ConfigurationError if sessions are not supported.
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-> 1553 server_session = self._get_server_session()
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1554 opts = client_session.SessionOptions(**kwargs)
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1555 return client_session.ClientSession(
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1556 self, server_session, opts, implicit)File C:\Anaconda3\lib\site-packages\pymongo\mongo_client.py:1589, in MongoClient._get_server_session(self)
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1587 def _get_server_session(self):
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1588 """Internal: start or resume a _ServerSession."""
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-> 1589 return self._topology.get_server_session()File C:\Anaconda3\lib\site-packages\pymongo\topology.py:530, in Topology.get_server_session(self)
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527 with self._lock:
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528 # Sessions are always supported in load balanced mode.
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529 if not self._settings.load_balanced:
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--> 530 session_timeout = self._check_session_support()
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531 else:
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532 # Sessions never time out in load balanced mode.
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533 session_timeout = float('inf')File C:\Anaconda3\lib\site-packages\pymongo\topology.py:514, in Topology._check_session_support(self)
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509 self._select_servers_loop(
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510 any_server_selector,
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511 self._settings.server_selection_timeout,
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512 None)
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513 elif not self._description.readable_servers:
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--> 514 self._select_servers_loop(
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515 readable_server_selector,
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516 self._settings.server_selection_timeout,
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517 None)
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519 session_timeout = self._description.logical_session_timeout_minutes
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520 if session_timeout is None:File C:\Anaconda3\lib\site-packages\pymongo\topology.py:216, in Topology._select_servers_loop(self, selector, timeout, address)
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213 while not server_descriptions:
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214 # No suitable servers.
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215 if timeout == 0 or now > end_time:
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--> 216 raise ServerSelectionTimeoutError(
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217 "%s, Timeout: %ss, Topology Description: %r" %
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218 (self._error_message(selector), timeout, self.description))
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220 self._ensure_opened()
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221 self._request_check_all()ServerSelectionTimeoutError: mongodb1:27017: [Errno 11001] getaddrinfo failed,mongodb2:27018: [Errno 11001] getaddrinfo failed,mongodb3:27019: [Errno 11001] getaddrinfo failed, Timeout: 30s, Topology Description: <TopologyDescription id: 61f1800055c0a2a6b98c18b6, topology_type: ReplicaSetNoPrimary, servers: [<ServerDescription ('mongodb1', 27017) server_type: Unknown, rtt: None, error=AutoReconnect('mongodb1:27017: [Errno 11001] getaddrinfo failed')>, <ServerDescription ('mongodb2', 27018) server_type: Unknown, rtt: None, error=AutoReconnect('mongodb2:27018: [Errno 11001] getaddrinfo failed')>, <ServerDescription ('mongodb3', 27019) server_type: Unknown, rtt: None, error=AutoReconnect('mongodb3:27019: [Errno 11001] getaddrinfo failed')>]>
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please let me know, if I can help