Hi ,

 

We encounter an issue on UAT for the MongoDB.Driver. Please see the error bellow:

 
"Message": "Message: A timeout occured 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 : \"Automatic\", Type : \"Standalone\", State : \"Disconnected\", Servers : [{ ServerId: \"

{ ClusterId : 1, EndPoint : \"ServerIP\" }

\", EndPoint: \"ServerIP\", State: \"Disconnected\", Type: \"Unknown\", HeartbeatException: \"MongoDB.Driver.MongoConnectionException: An exception occurred while opening a connection to the server. ---> System.Net.Sockets.SocketException: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond ServerIP
  at System.Net.Sockets.Socket.InternalEndConnect(IAsyncResult asyncResult)
  at System.Net.Sockets.Socket.EndConnect(IAsyncResult asyncResult)
  at System.Threading.Tasks.TaskFactory`1.FromAsyncCoreLogic(IAsyncResult iar, Func`2 endFunction, Action`1 endAction, Task`1 promise, Boolean requiresSynchronization)
— End of stack trace from previous location where exception was thrown —
  at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
  at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
  at MongoDB.Driver.Core.Connections.TcpStreamFactory.<ConnectAsync>d__7.MoveNext()
— End of stack trace from previous location where exception was thrown —
  at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
  at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
  at MongoDB.Driver.Core.Connections.TcpStreamFactory.<CreateStreamAsync>d__4.MoveNext()
— End of stack trace from previous location where exception was thrown —
  at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
  at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
  at MongoDB.Driver.Core.Connections.BinaryConnection.<OpenHelperAsync>d__51.MoveNext()
  — End of inner exception stack trace —
  at MongoDB.Driver.Core.Connections.BinaryConnection.<OpenHelperAsync>d__51.MoveNext()
— End of stack trace from previous location where exception was thrown —
  at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
  at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
  at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd(Task task)
  at MongoDB.Driver.Core.Servers.ServerMonitor.<HeartbeatAsync>d__28.MoveNext()\", LastUpdateTimestamp: \"2020-11-16T05:40:49.3303916Z\" }] }.
Source: mscorlib
Site: Void HandleReturnMessage(System.Runtime.Remoting.Messaging.IMessage, System.Runtime.Remoting.Messaging.IMessage)
Stack trace:
 
Server stack trace:
  at System.ServiceModel.Channels.ServiceChannel.ThrowIfFaultUnderstood(Message reply, MessageFault fault, String action, MessageVersion version, FaultConverter faultConverter)
  at System.ServiceModel.Channels.ServiceChannel.HandleReply(ProxyOperationRuntime operation, ProxyRpc& rpc)
  at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout)
  at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)
  at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)
 
Thanks.
Mirela