請求內容意外結束Kestrel ASP.NET Core

Question

我在兩個WebApi之間發送大文件（20GB）有問題。

用ASP.NET 4.6編寫的WebAPI1

用ASP.NET Core 2.0編寫的WebAPI2

當我通過郵遞員將此文件發送到WebAPI2時，將發送整個文件。 但是，當我嘗試將文件從WebAPI1發送到WebAPI2時，它失敗了（盡管我能夠發送7GB之類的文件）。

在發送20GB文件期間，我在WebAPI2中收到錯誤：

Microsoft.AspNetCore.Server.Kestrel.Core.BadHttpRequestException: Unexpected
 end of request content.
   at Microsoft.AspNetCore.Server.Kestrel.Internal.System.IO.Pipelines.PipeCompl
etion.ThrowFailed()
   at Microsoft.AspNetCore.Server.Kestrel.Internal.System.IO.Pipelines.Pipe.GetR
esult(ReadResult& result)
   at Microsoft.AspNetCore.Server.Kestrel.Internal.System.IO.Pipelines.Pipe.Micr
osoft.AspNetCore.Server.Kestrel.Internal.System.IO.Pipelines.IReadableBufferAwai
ter.GetResult()
   at Microsoft.AspNetCore.Server.Kestrel.Internal.System.IO.Pipelines.ReadableB
ufferAwaitable.GetResult()
   at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http.MessageBody.<ReadAs
ync>d__22.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNot
ification(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()
   at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Http.FrameRequestStream.
<ReadAsyncInternal>d__21.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNot
ification(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()
   at Microsoft.AspNetCore.WebUtilities.BufferedReadStream.<EnsureBufferedAsync>
d__37.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNot
ification(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()
   at Microsoft.AspNetCore.WebUtilities.MultipartReaderStream.<ReadAsync>d__36.M
oveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNot
ification(Task task)
   at System.IO.Stream.<CopyToAsyncInternal>d__27.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNot
ification(Task task)

Answer 1

當我在WebApi1中作為WCF合同的一部分運行此請求時，得到了stacktrace：

   at System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions)
   at System.Threading.Tasks.Task`1.GetResultCore(Boolean waitCompletionNotification)
   at System.Threading.Tasks.Task`1.get_Result()

但是我注意到總是在2分鍾后拋出異常。

比我嘗試發送20GB文件作為控制器方法的一部分（來自WebAPI1），並在那里捕獲TaskCanceledException 。 當發生此異常時，通過檢查標志IsCancellationRequested是否為false可以判斷是超時問題，這意味着它是超時問題。 有用的帖子： HttpClient-任務被取消了嗎？

在我的情況下，stacktrace中的TaskCanceledException設置為false ，因此在HttpClient中超時

new HttpClient { Timeout = TimeSpan.FromMinutes(2) };

將限制增加到10分鍾即可解決此問題。