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  1. C# Driver
  2. CSHARP-1303

Socket Connection Error in 2.0 Driver

    • Type: Icon: Task Task
    • Resolution: Done
    • Priority: Icon: Major - P3 Major - P3
    • None
    • Affects Version/s: 2.0
    • Environment:
      Azure website connecting to a Linux replica set on Azure

      Since going through and updating all of my code to use the mongodb 2.0 driver when I look in my logs I see hundreds of error messages just like the one below where the driver is getting a socket error when connecting to mongo. When I look at the logs on the mongo server I do not see any error messages. The site is still up and this error doesn't happen on every request, nor does it happen on one operation that should take longer. It is random where it occurs within the application.

      Here is the error:

      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 138.91.138.169:27017
      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__0.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.ConfiguredTaskAwaitable`1.ConfiguredTaskAwaiter.GetResult()
      at MongoDB.Driver.Core.Connections.BinaryConnection.<OpenAsyncHelper>d__1.MoveNext()
      — End of inner exception stack trace —
      at MongoDB.Driver.Core.Connections.BinaryConnection.<OpenAsyncHelper>d__1.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.Servers.ClusterableServer.<GetChannelAsync>d__0.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.ConfiguredTaskAwaitable`1.ConfiguredTaskAwaiter.GetResult()
      at MongoDB.Driver.Core.Operations.FindOperation`1.<ExecuteAsync>d__2.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.OperationExecutor.<ExecuteReadOperationAsync>d__0`1.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.MongoCollectionImpl`1.<ExecuteReadOperation>d__35`1.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.IAsyncCursorSourceExtensions.<ToListAsync>d__14`1.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`1.GetResult()
      at CitySpark.EventCache.FlatEventRepo.<GetEventsPagedAsync>d__26.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`1.GetResult()

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          vrybak
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          Bret Ferrier

            Assignee:
            Unassigned Unassigned
            Reporter:
            bret@cityspark.com Bret Ferrier
            Votes:
            2 Vote for this issue
            Watchers:
            17 Start watching this issue

              Created:
              Updated:
              Resolved: