Hi all,

We are working on automatic upgrade tool to migrate data from Mongo 2.4 to Mongo 4.0 and we are using Mongo driver version 2.8.1 with  .net core version 2.1.

During the upgrade process We are connecting via Mongo client to  Mongo Server 2.4, then shutting  down the service ,upgrading  the Mongo version  to 2.6  starting it and then stopping it upgrading to 3.0 and etc.

During this process We have a problem of disconnection of the mongo driver as result of shutting down the Mongo services which seems to stuck the Mongo driver and every command we are trying to execute for example ListDatabases from our mongo client gets the following exception:

System.AggregateException: One or more errors occurred. (An exception occurred while receiving a message from the server.) ---> MongoDB.Driver.MongoConnectionException: An exception occurred while receiving a message from the server. ---> System.IO.IOException: Unable to read data from the transport connection: An established connection was aborted by the software in your host machine. ---> System.Net.Sockets.SocketException: An established connection was aborted by the software in your host machine

   — End of inner exception stack trace —

   at MongoDB.Driver.Core.Misc.StreamExtensionMethods.ReadBytesAsync(Stream stream, Byte[] buffer, Int32 offset, Int32 count, CancellationToken cancellationToken)

   at MongoDB.Driver.Core.Connections.BinaryConnection.ReceiveBufferAsync()

   — End of inner exception stack trace —

   at MongoDB.Driver.Core.Connections.BinaryConnection.ReceiveBufferAsync()

   at MongoDB.Driver.Core.Connections.BinaryConnection.ReceiveBufferAsync(Int32 responseTo, CancellationToken cancellationToken)

   at MongoDB.Driver.Core.Connections.BinaryConnection.ReceiveMessageAsync(Int32 responseTo, IMessageEncoderSelector encoderSelector, MessageEncoderSettings messageEncoderSettings, CancellationToken cancellationToken)

   at MongoDB.Driver.Core.WireProtocol.CommandUsingQueryMessageWireProtocol`1.ExecuteAsync(IConnection connection, CancellationToken cancellationToken)

   at MongoDB.Driver.Core.Servers.Server.ServerChannel.ExecuteProtocolAsync[TResult](IWireProtocol`1 protocol, CancellationToken cancellationToken)

   at MongoDB.Driver.Core.Operations.CommandOperationBase`1.ExecuteProtocolAsync(IChannelSource channelSource, ICoreSessionHandle session, ReadPreference readPreference, CancellationToken cancellationToken)

   at MongoDB.Driver.Core.Operations.ReadCommandOperation`1.ExecuteAsync(IReadBinding binding, CancellationToken cancellationToken)

   at MongoDB.Driver.OperationExecutor.ExecuteReadOperationAsync[TResult](IReadBinding binding, IReadOperation`1 operation, CancellationToken cancellationToken)

   at MongoDB.Driver.MongoDatabaseImpl.ExecuteReadOperationAsync[T](IClientSessionHandle session, IReadOperation`1 operation, ReadPreference readPreference, CancellationToken cancellationToken)

   at MongoDB.Driver.MongoDatabaseImpl.UsingImplicitSessionAsync[TResult](Func`2 funcAsync, CancellationToken cancellationToken)

   — End of inner exception stack trace —

   at System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken)

   at System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout)

 

 

Thank you.

Daniel.