FileUpload: Did not receive any data in the allotted time.

[Liero]

Describe the bug

Not sure if this is a bug but I haven't found any documentation either.

IBrowserFile.ReportFile!.OpenReadStream(maxFileSize).CopyToAsync(fileStream); sometimes throws

System.TimeoutException: Did not receive any data in the allotted time.

To Reproduce

I haven't found a reliable way to reproduce the issue, since it happens only sometimes and have no idea what is causing it.

Here is the code:

IBrowserFile _selectedFile;

void OnSelectedFile(InputFileChangeEventArgs args)
{
    _selectedFile = args.File;
}

private async Task UploadMethod()
{
    string basePath = @"\\fileshare\folder";
    string relativePath = @"{MyFolder\DateTime.Now:dd.MM.yyyy}.pdf";
    string fullPath = Path.Combine(basePath, relativePath);
    using FileStream fs = new FileStream(fullPath, FileMode.Create);

    const long maxFileSize = 5000000; // 5 MB
    if (_selectedFile.Size > maxFileSize)
    {
        Toasts.ShowError("Chyba pri ukladaní. Súbor OTDR má viac ako 5 MB.", "OTDR Report");
    }
    else
    {
        _selectedFile.OpenReadStream(maxFileSize).CopyToAsync(fs);
    }
}

Exceptions (if any)

System.TimeoutException: Did not receive any data in the allotted time.

``` [ { "method":"System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw", "level":0, "line":0, "assembly":"System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e" }, { "method":"System.IO.Pipelines.Pipe.GetReadResult", "level":1, "line":0, "assembly":"System.IO.Pipelines, Version=6.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51" }, { "method":"System.IO.Pipelines.Pipe.GetReadAsyncResult", "level":2, "line":0, "assembly":"System.IO.Pipelines, Version=6.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51" }, { "method":"System.IO.Pipelines.PipeReaderStream+d__30.MoveNext", "level":3, "line":0, "assembly":"System.IO.Pipelines, Version=6.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51" }, { "method":"System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw", "level":4, "line":0, "assembly":"System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e" }, { "method":"System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess", "level":5, "line":0, "assembly":"System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e" }, { "method":"System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification", "level":6, "line":0, "assembly":"System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e" }, { "method":"Microsoft.AspNetCore.Components.Server.Circuits.RemoteJSDataStream+d__36.MoveNext", "level":7, "line":0, "assembly":"Microsoft.AspNetCore.Components.Server, Version=6.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60" }, { "method":"System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw", "level":8, "line":0, "assembly":"System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e" }, { "method":"System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess", "level":9, "line":0, "assembly":"System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e" }, { "method":"System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification", "level":10, "line":0, "assembly":"System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e" }, { "method":"Microsoft.AspNetCore.Components.Forms.BrowserFileStream+d__30.MoveNext", "level":11, "line":0, "assembly":"Microsoft.AspNetCore.Components.Web, Version=6.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60" }, { "method":"System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw", "level":12, "line":0, "assembly":"System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e" }, { "method":"System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess", "level":13, "line":0, "assembly":"System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e" }, { "method":"System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification", "level":14, "line":0, "assembly":"System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e" }, { "method":"Microsoft.AspNetCore.Components.Forms.BrowserFileStream+d__28.MoveNext", "level":15, "line":0, "assembly":"Microsoft.AspNetCore.Components.Web, Version=6.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60" }, { "method":"System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw", "level":16, "line":0, "assembly":"System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e" }, { "method":"System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess", "level":17, "line":0, "assembly":"System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e" }, { "method":"System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification", "level":18, "line":0, "assembly":"System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e" }, { "method":"System.IO.Stream+<g__Core|29_0>d.MoveNext", "level":19, "line":0, "assembly":"System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e" }, { "method":"System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw", "level":20, "line":0, "assembly":"System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e" }, { "method":"System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess", "level":21, "line":0, "assembly":"System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e" }, { "method":"System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification", "level":22, "line":0, "assembly":"System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e" }, { "method":"MyApp.Pages.MyPage+d__54.MoveNext", "level":23, "line":348, "assembly":"MyApp, Version=2.0.0.0, Culture=neutral, PublicKeyToken=null", "fileName":"D:\\a\\1\\s\\src\\app\\Pages\\MyPage.razor.cs" } ] ```

Further technical details

• ASP.NET Core version: 6
• Include the output of dotnet --info:

dotnet --info Output

.NET SDK (reflecting any global.json):
 Version:   6.0.100
 Commit:    9e8b04bbff

Runtime Environment:
 OS Name:     Windows
 OS Version:  10.0.22000
 OS Platform: Windows
 RID:         win10-x64
 Base Path:   C:\Program Files\dotnet\sdk\6.0.100\

Host (useful for support):
  Version: 6.0.0
  Commit:  4822e3c3aa

[TanayParikh]

This exception is raised in Blazor Server (here) when the client fails to send any data chunks within the stream for the SignalR JSInteropDefaultCallTimeout.

Are you seeing the client send the stream data chunks within the Developer Tools > Network tab in the browser? Are you behind a VPN or proxy which may be restricting certain packets? If you can provide a public GitHub minimal repro application, it'll allow us to diagnose the issue further.

Hi @Liero. We have added the "Needs: Author Feedback" label to this issue, which indicates that we have an open question for you before we can take further action. This issue will be closed automatically in 7 days if we do not hear back from you by then - please feel free to re-open it if you come back to this issue after that time.

This issue has been automatically marked as stale because it has been marked as requiring author feedback but has not had any activity for 4 days. It will be closed if no further activity occurs within 3 days of this comment. If it is closed, feel free to comment when you are able to provide the additional information and we will re-investigate.

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[Jesus-QC]

Im having the same issue when I upload big files to the server, it does not happen with small ones.

[TanayParikh]

Im having the same issue when I upload big files to the server, it does not happen with small ones.

This exception is raised in Blazor Server (here) when the client fails to send any data chunks within the stream for the SignalR JSInteropDefaultCallTimeout.

Are you seeing the client send the stream data chunks within the Developer Tools > Network tab in the browser? Are you behind a VPN or proxy which may be restricting certain packets? If you can provide a public GitHub minimal repro application, it'll allow us to diagnose the issue further.

[Jesus-QC]

I just found out this:

Let me try to fix that and i will send here the details.

[Jesus-QC]

Not happening anymore as far as I see!