ErrorMessage

System.IO.IOException: The write operation failed, see inner exception. ---> System.Net.Http.WinHttpException: The connection with the server was terminated abnormally
   --- End of inner exception stack trace ---
   at Amazon.Runtime.HttpWebRequestMessage.<GetResponseAsync>d__20.MoveNext() in E:\JenkinsWorkspaces\v3-stage-release\AWSDotNetPublic\sdk\src\Core\Amazon.Runtime\Pipeline\HttpHandler\_mobile\HttpRequestMessageFactory.cs:line 432
--- 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 Amazon.Runtime.Internal.HttpHandler`1.<InvokeAsync>d__9`1.MoveNext() in E:\JenkinsWorkspaces\v3-stage-release\AWSDotNetPublic\sdk\src\Core\Amazon.Runtime\Pipeline\HttpHandler\HttpHandler.cs:line 175
--- 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 Amazon.Runtime.Internal.RedirectHandler.<InvokeAsync>d__1`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 Amazon.Runtime.Internal.Unmarshaller.<InvokeAsync>d__3`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 Amazon.S3.Internal.AmazonS3ResponseHandler.<InvokeAsync>d__1`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 Amazon.Runtime.Internal.ErrorHandler.<InvokeAsync>d__5`1.MoveNext() in E:\JenkinsWorkspaces\v3-stage-release\AWSDotNetPublic\sdk\src\Core\Amazon.Runtime\Pipeline\ErrorHandler\ErrorHandler.cs:line 107
--- 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 Amazon.Runtime.Internal.CallbackHandler.<InvokeAsync>d__9`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 Amazon.Runtime.Internal.CredentialsRetriever.<InvokeAsync>d__7`1.MoveNext() in E:\JenkinsWorkspaces\v3-stage-release\AWSDotNetPublic\sdk\src\Core\Amazon.Runtime\Pipeline\Handlers\CredentialsRetriever.cs:line 98
--- 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 Amazon.Runtime.Internal.RetryHandler.<InvokeAsync>d__10`1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at Amazon.Runtime.Internal.RetryHandler.<InvokeAsync>d__10`1.MoveNext() in E:\JenkinsWorkspaces\v3-stage-release\AWSDotNetPublic\sdk\src\Core\Amazon.Runtime\Pipeline\RetryHandler\RetryHandler.cs:line 141
--- 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 Amazon.Runtime.Internal.CallbackHandler.<InvokeAsync>d__9`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 Amazon.Runtime.Internal.CallbackHandler.<InvokeAsync>d__9`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 Amazon.S3.Internal.AmazonS3ExceptionHandler.<InvokeAsync>d__1`1.MoveNext() in E:\JenkinsWorkspaces\v3-stage-release\AWSDotNetPublic\sdk\src\Services\S3\Custom\Internal\AmazonS3ExceptionHandler.cs:line 62
--- 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 Amazon.Runtime.Internal.ErrorCallbackHandler.<InvokeAsync>d__5`1.MoveNext() in E:\JenkinsWorkspaces\v3-stage-release\AWSDotNetPublic\sdk\src\Core\Amazon.Runtime\Pipeline\Handlers\ErrorCallbackHandler.cs:line 58
--- 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 Amazon.Runtime.Internal.MetricsHandler.<InvokeAsync>d__1`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 Amazon.S3.Transfer.Internal.SimpleUploadCommand.<ExecuteAsync>d__10.MoveNext() in E:\JenkinsWorkspaces\v3-stage-release\AWSDotNetPublic\sdk\src\Services\S3\Custom\_bcl+coreclr+pcl\Transfer\Internal\_async\SimpleUploadCommand.async.cs:line 42
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at Amazon.S3.Transfer.TransferUtility.Upload(Stream stream, String bucketName, String key) in E:\JenkinsWorkspaces\v3-stage-release\AWSDotNetPublic\sdk\src\Services\S3\Custom\_bcl+coreclr+pcl\Transfer\_bcl45+coreclr\TransferUtility.sync.cs:line 252
   at HavenPower.Common.CsvOutput`1.WriteRecords() in C:\Source\AwsLambda\s3example.cs:line 73
   at HavenPower.TransformLedger.CoreFunction.<WriteJournalInput>d__0.MoveNext() in C:\Source\AwsLambda\s3example.cs:line 37

Hi Matt,

I'm getting issues like this when uploading a file to S3 in a dotnet core app in an EC2 instance. I don't get the same issue when running locally (the upload to S3 works fine when the app is run on my machine).

I suspect permissions issues too - but I'm finding these error messages indecipherable!

How did you eventually get the the root cause?

Thanks in advance,

Meurig