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Azure Functions out-of-process .NET language worker
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Host logs `System.Net.Sockets.SocketException` to ApplicationInsights when a HTTP request is canceled by the client #2585

Open skyfrk opened 2 months ago

skyfrk commented 2 months ago

Description

We use an .NET 8 isolated function app with the default ApplicationInsights and ASP.NET Core integration (see below for the full setup).

When a request to an HTTP trigger with CancellationToken support is canceled by the client, multiple exceptions are logged to ApplicationInsights:

image

When a client cancels a request, we would like to handle that without logging exceptions to ApplicationInsights.

The TaskCanceledException exception can be caught and handled in a middleware like this:

public async Task Invoke(FunctionContext context, FunctionExecutionDelegate next)
{
    try
    {
        await next(context);
    }
    catch (Exception)
    {
        if (context.CancellationToken.IsCancellationRequested)
        {
            return;
        }
        throw;
    }
}

The System.Net.Sockets.SocketException exceptions however can only be filtered by filtering whole categories in the host.json:

{
    "version": "2.0",
    "logging": {
      "logLevel": {
        "default": "Information",
        "Host.Results": "None",
        "Functions.<FunctionName>": "None"
      }
    }
}

Unfortunately these categories contain other logs as well that one might not want to be filtered (e.g. request logs).

So since there is no way to suppress these System.Net.Sockets.SocketException exceptions that are thrown by the host for canceled requests, I'd say that this is a bug.

Example of a System.Net.Sockets.SocketException thrown by the host:

Exception while executing function: Functions.Function1 Failed to proxy request with ForwarderError: RequestCanceled The operation was canceled. Unable to read data from the transport connection: The I/O operation has been aborted because of either a thread exit or an application request.. The I/O operation has been aborted because of either a thread exit or an application request. 

Microsoft.Azure.WebJobs.Host.FunctionInvocationException:
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at Microsoft.Azure.WebJobs.Host.Executors.FunctionExecutor+<ExecuteWithLoggingAsync>d__26.MoveNext (Microsoft.Azure.WebJobs.Host, Version=3.0.41.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35: D:\a\_work\1\s\src\Microsoft.Azure.WebJobs.Host\Executors\FunctionExecutor.cs:352)
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at Microsoft.Azure.WebJobs.Host.Executors.FunctionExecutor+<TryExecuteAsync>d__18.MoveNext (Microsoft.Azure.WebJobs.Host, Version=3.0.41.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35: D:\a\_work\1\s\src\Microsoft.Azure.WebJobs.Host\Executors\FunctionExecutor.cs:108)
Inner exception System.InvalidOperationException handled at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw:
   at Microsoft.Azure.WebJobs.Script.Grpc.DefaultHttpProxyService+<EnsureSuccessfulForwardingAsync>d__6.MoveNext (Microsoft.Azure.WebJobs.Script.Grpc, Version=4.834.0.0, Culture=neutral, PublicKeyToken=null: /_/src/WebJobs.Script.Grpc/Server/DefaultHttpProxyService.cs:65)
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at Microsoft.Azure.WebJobs.Script.Grpc.GrpcWorkerChannel+<InvokeResponse>d__103.MoveNext (Microsoft.Azure.WebJobs.Script.Grpc, Version=4.834.0.0, Culture=neutral, PublicKeyToken=null: /_/src/WebJobs.Script.Grpc/Channel/GrpcWorkerChannel.cs:1102)
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at Microsoft.Azure.WebJobs.Script.Description.WorkerFunctionInvoker+<InvokeCore>d__9.MoveNext (Microsoft.Azure.WebJobs.Script, Version=4.834.0.0, Culture=neutral, PublicKeyToken=null: /_/src/WebJobs.Script/Description/Workers/WorkerFunctionInvoker.cs:101)
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at Microsoft.Azure.WebJobs.Script.Description.FunctionInvokerBase+<Invoke>d__24.MoveNext (Microsoft.Azure.WebJobs.Script, Version=4.834.0.0, Culture=neutral, PublicKeyToken=null: /_/src/WebJobs.Script/Description/FunctionInvokerBase.cs:82)
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at Microsoft.Azure.WebJobs.Script.Description.FunctionGenerator+<Coerce>d__3`1.MoveNext (Microsoft.Azure.WebJobs.Script, Version=4.834.0.0, Culture=neutral, PublicKeyToken=null: /_/src/WebJobs.Script/Description/FunctionGenerator.cs:225)
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at Microsoft.Azure.WebJobs.Host.Executors.FunctionInvoker`2+<InvokeAsync>d__10.MoveNext (Microsoft.Azure.WebJobs.Host, Version=3.0.41.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35: D:\a\_work\1\s\src\Microsoft.Azure.WebJobs.Host\Executors\FunctionInvoker.cs:53)
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at Microsoft.Azure.WebJobs.Host.Executors.FunctionExecutor+<InvokeWithTimeoutAsync>d__33.MoveNext (Microsoft.Azure.WebJobs.Host, Version=3.0.41.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35: D:\a\_work\1\s\src\Microsoft.Azure.WebJobs.Host\Executors\FunctionExecutor.cs:581)
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at Microsoft.Azure.WebJobs.Host.Executors.FunctionExecutor+<ExecuteWithWatchersAsync>d__32.MoveNext (Microsoft.Azure.WebJobs.Host, Version=3.0.41.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35: D:\a\_work\1\s\src\Microsoft.Azure.WebJobs.Host\Executors\FunctionExecutor.cs:527)
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at Microsoft.Azure.WebJobs.Host.Executors.FunctionExecutor+<ExecuteWithLoggingAsync>d__26.MoveNext (Microsoft.Azure.WebJobs.Host, Version=3.0.41.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35: D:\a\_work\1\s\src\Microsoft.Azure.WebJobs.Host\Executors\FunctionExecutor.cs:306)
Inner exception System.Threading.Tasks.TaskCanceledException handled at Microsoft.Azure.WebJobs.Script.Grpc.DefaultHttpProxyService+<EnsureSuccessfulForwardingAsync>d__6.MoveNext:
   at System.Net.Http.HttpConnection+<SendAsyncCore>d__64.MoveNext (System.Net.Http, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a)
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Net.Http.HttpConnectionPool+<SendWithVersionDetectionAndRetryAsync>d__84.MoveNext (System.Net.Http, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a)
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Net.Http.DiagnosticsHandler+<SendAsyncCore>d__8.MoveNext (System.Net.Http, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a)
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at Microsoft.Azure.WebJobs.Script.Grpc.RetryProxyHandler+<SendAsync>d__4.MoveNext (Microsoft.Azure.WebJobs.Script.Grpc, Version=4.834.0.0, Culture=neutral, PublicKeyToken=null: /_/src/WebJobs.Script.Grpc/Server/RetryProxyHandler.cs:33)
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at Yarp.ReverseProxy.Forwarder.HttpForwarder+<SendAsync>d__8.MoveNext (Yarp.ReverseProxy, Version=2.0.1.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a)
Inner exception System.IO.IOException handled at System.Net.Http.HttpConnection+<SendAsyncCore>d__64.MoveNext:
   at System.Net.Sockets.Socket+AwaitableSocketAsyncEventArgs.ThrowException (System.Net.Sockets, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a)
   at System.Net.Sockets.Socket+AwaitableSocketAsyncEventArgs.System.Threading.Tasks.Sources.IValueTaskSource<System.Int32>.GetResult (System.Net.Sockets, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a)
   at System.Net.Http.HttpConnection+<<CheckUsabilityOnScavenge>g__ReadAheadWithZeroByteReadAsync|45_0>d.MoveNext (System.Net.Http, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a)
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.ConfiguredValueTaskAwaitable`1+ConfiguredValueTaskAwaiter.GetResult (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Net.Http.HttpConnection+<SendAsyncCore>d__64.MoveNext (System.Net.Http, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a)
Inner exception System.Net.Sockets.SocketException handled at System.Net.Sockets.Socket+AwaitableSocketAsyncEventArgs.ThrowException:

Steps to reproduce

Function App Setup

FunctionApp1.csproj

<Project Sdk="Microsoft.NET.Sdk">
  <PropertyGroup>
    <TargetFramework>net8.0</TargetFramework>
    <AzureFunctionsVersion>v4</AzureFunctionsVersion>
    <OutputType>Exe</OutputType>
    <ImplicitUsings>enable</ImplicitUsings>
    <Nullable>enable</Nullable>
  </PropertyGroup>
  <ItemGroup>
    <FrameworkReference Include="Microsoft.AspNetCore.App" />
    <PackageReference Include="Microsoft.Azure.Functions.Worker" Version="1.21.0" />
    <PackageReference Include="Microsoft.Azure.Functions.Worker.Extensions.Http" Version="3.1.0" />
    <PackageReference Include="Microsoft.Azure.Functions.Worker.Extensions.Http.AspNetCore" Version="1.2.0" />
    <PackageReference Include="Microsoft.Azure.Functions.Worker.Sdk" Version="1.17.0" />
    <PackageReference Include="Microsoft.ApplicationInsights.WorkerService" Version="2.22.0" />
    <PackageReference Include="Microsoft.Azure.Functions.Worker.ApplicationInsights" Version="1.2.0" />
  </ItemGroup>
  <ItemGroup>
    <None Update="host.json">
      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
    </None>
    <None Update="local.settings.json">
      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
      <CopyToPublishDirectory>Never</CopyToPublishDirectory>
    </None>
  </ItemGroup>
  <ItemGroup>
    <Using Include="System.Threading.ExecutionContext" Alias="ExecutionContext" />
  </ItemGroup>
</Project>

Program.cs

using Microsoft.Azure.Functions.Worker;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;

var host = new HostBuilder()
    .ConfigureFunctionsWebApplication()
    .ConfigureServices(services =>
    {
        services.AddApplicationInsightsTelemetryWorkerService();
        services.ConfigureFunctionsApplicationInsights();
    })
    .Build();

host.Run();

Function1.cs

using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Azure.Functions.Worker;
using Microsoft.Extensions.Logging;

namespace FunctionApp1
{
    public class Function1
    {
        private readonly ILogger<Function1> _logger;

        public Function1(ILogger<Function1> logger)
        {
            _logger = logger;
        }

        [Function("Function1")]
        public async Task<IActionResult> Run([HttpTrigger(AuthorizationLevel.Function, "get", "post")] HttpRequest req, CancellationToken cancellationToken)
        {
            _logger.LogInformation("C# HTTP trigger function processed a request.");
            await Task.Delay(TimeSpan.FromSeconds(5), cancellationToken);
            return new OkObjectResult("Welcome to Azure Functions!");
        }
    }
}

host.json

{
    "version": "2.0",
    "logging": {
        "applicationInsights": {
            "samplingSettings": {
                "isEnabled": true,
                "excludedTypes": "Request"
            },
            "enableLiveMetricsFilters": true
        }
    }
}

local.settings.json

{
  "IsEncrypted": false,
  "Values": {
    "AzureWebJobsStorage": "UseDevelopmentStorage=true",
    "FUNCTIONS_WORKER_RUNTIME": "dotnet-isolated",
    "APPLICATIONINSIGHTS_CONNECTION_STRING": "REDACTED"
  }
}

Client Setup

using System.Net.Http;

using var cts = new CancellationTokenSource(TimeSpan.FromSeconds(4));

var httpClient = new HttpClient();
await httpClient.GetAsync(new Uri("http://localhost:7195/api/Function1"), cts.Token);
kangaj80 commented 1 month ago

We have been experiencing the same issue with an HTTP triggered function in a .net 8 isolated worker function app running on consumption plan. We are using functions v4 and these are the packages we are referencing:

<PackageReference Include="Azure.Storage.Blobs" Version="12.20.0" />
<PackageReference Include="Contrib.Grpc.Core.M1" Version="2.46.7" />
<PackageReference Include="Microsoft.Azure.Functions.Worker" Version="1.22.0" />
<PackageReference Include="Microsoft.Azure.Functions.Worker.Extensions.DurableTask" Version="1.1.4" />
<PackageReference Include="Microsoft.Azure.Functions.Worker.Extensions.EventGrid" Version="3.4.1" />    
<PackageReference Include="Microsoft.Azure.Functions.Worker.Extensions.Http" Version="3.2.0" />
<PackageReference Include="Microsoft.Azure.Functions.Worker.Extensions.Http.AspNetCore" Version="1.3.2" />
<PackageReference Include="Microsoft.Azure.Functions.Worker.Extensions.ServiceBus" Version="5.20.0" />
<PackageReference Include="Microsoft.Azure.Functions.Worker.Sdk" Version="1.17.2" />
<PackageReference Include="Microsoft.ApplicationInsights.WorkerService" Version="2.22.0" />
<PackageReference Include="Microsoft.Azure.Functions.Worker.ApplicationInsights" Version="1.2.0" />
<PackageReference Include="Microsoft.Extensions.Azure" Version="1.7.4" />
<PackageReference Include="Microsoft.Extensions.Caching.Abstractions" Version="8.0.0" />
<PackageReference Include="Microsoft.Extensions.Caching.Memory" Version="8.0.0" />
<PackageReference Include="Microsoft.Extensions.Configuration.UserSecrets" Version="8.0.0" />
filip-be commented 1 month ago

+1, we are experiencing the same issue - client cancels the request and we are seeing Failures and multiple exceptions logged on the Azure Function side.

client app happens to trigger the requests with very short timeout due to the network sockets drain on the client site (can be less than 100ms).

from the call stack on the server side (Azure Function) it looks like the user code is not triggered at all, call stack references only internal function libraries.

Azure Function v4 on Linux consumption plan. Referenced packages:

    <FrameworkReference Include="Microsoft.AspNetCore.App" />
    <PackageReference Include="Azure.Identity" Version="1.12.0" />
    <PackageReference Include="Azure.Data.Tables" Version="12.8.3" />
    <PackageReference Include="Azure.Monitor.Query" Version="1.3.1" />
    <PackageReference Include="Azure.Storage.Files.DataLake" Version="12.18.0" />
    <PackageReference Include="Microsoft.Azure.Functions.Worker" Version="1.22.0" />
    <PackageReference Include="Microsoft.Azure.Functions.Worker.Extensions.Http" Version="3.2.0" />
    <PackageReference Include="Microsoft.Azure.Functions.Worker.Extensions.Http.AspNetCore" Version="1.3.2" />
    <PackageReference Include="Microsoft.Azure.Functions.Worker.Extensions.Timer" Version="4.3.1" />
    <PackageReference Include="Microsoft.Azure.Functions.Worker.Sdk" Version="1.17.4" />
    <PackageReference Include="Microsoft.ApplicationInsights.WorkerService" Version="2.22.0" />
    <PackageReference Include="Microsoft.Azure.Functions.Worker.ApplicationInsights" Version="1.2.0" />
    <PackageReference Include="ParquetSharp" Version="15.0.2.1" />
    <PackageReference Include="System.Drawing.Common" Version="8.0.6" />
    <PackageReference Include="Microsoft.Identity.Client" Version="4.62.0" />
    <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
    <PackageReference Include="System.Text.Json" Version="8.0.4" />
Derek-Frazier commented 1 month ago

+1. We're seeing the same problem in a couple of applications we just migrated from .NET 6 In-Proc to .NET 8 isolated on v4 Windows Consumption plans.

sabrigo commented 2 weeks ago

same issue

sabrigo commented 2 weeks ago

if you remove this package

and the below line from your program.cs

.ConfigureFunctionsWebApplication()

the functions works fine.

so what is happening is, because of those two line, the azure function is being treated as aspnetcore application