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Type:
Task
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Resolution: Fixed
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Priority:
Major - P3
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Affects Version/s: None
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Component/s: Connectivity, Documentation
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(copied to CRM)
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Fully Compatible
.NET 5.0 app running on Linux cannot connect to MongoDB 4.0 on Atlas. It fails with the following exception:
Unhandled exception. System.TimeoutException: A timeout occurred after 30000ms selecting a server using CompositeServerSelector{ Selectors = MongoDB.Driver.MongoClient+AreSessionsSupportedServerSelector, LatencyLimitingServerSelector{ AllowedLatencyRange = 00:00:00.0150000 } }. Client view of cluster state is { ClusterId : "1", ConnectionMode : "ReplicaSet", Type : "ReplicaSet", State : "Disconnected", Servers : [{ ServerId: "{ ClusterId : 1, EndPoint : "Unspecified/mongodb40tlstest-shard-00-00.ebdql.mongodb.net:27017" }", EndPoint: "Unspecified/mongodb40tlstest-shard-00-00.ebdql.mongodb.net:27017", ReasonChanged: "Heartbeat", State: "Disconnected", ServerVersion: , TopologyVersion: , Type: "Unknown", HeartbeatException: "MongoDB.Driver.MongoConnectionException: An exception occurred while opening a connection to the server. ---> System.IO.IOException: Received an unexpected EOF or 0 bytes from the transport stream. ... stack trace ...
The same app running on .NET Core 3.1 can connect successfully to MongoDB 4.0 on Atlas.
The same app running on .NET 5.0 can connect successfully to MongoDB 4.2 or later on Atlas.
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