Http Function fails to trigger randomly with COM exception

Question

The HTTP function fails to trigger randomly, even with retries. What can be done at my end to make sure this doesn't happen?

Exception while executing function: SampleBot---> System.InvalidOperationException : Exception binding parameter 'req' ---> Microsoft.AspNetCore.Connections.ConnectionResetException : The client has disconnected ---> System.Runtime.InteropServices.COMException : An operation was attempted on a nonexistent network connection. (0x800704CD)
End of inner exception
at Microsoft.AspNetCore.Server.IIS.Core.IO.AsyncIOOperation.GetResult(Int16 token)
at async Microsoft.AspNetCore.Server.IIS.Core.IISHttpContext.ReadBody()
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.IO.Pipelines.Pipe.GetReadResult(ReadResult& result)
at System.IO.Pipelines.Pipe.ReadAsync(CancellationToken token)
at System.IO.Pipelines.Pipe.DefaultPipeReader.ReadAsync(CancellationToken cancellationToken)
at async Microsoft.AspNetCore.Server.IIS.Core.IISHttpContext.ReadAsync(Memory1 memory,CancellationToken cancellationToken) at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at async Microsoft.AspNetCore.Server.IIS.Core.HttpRequestStream.ReadAsyncInternal(Memory1 buffer,CancellationToken cancellationToken)
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at async Microsoft.AspNetCore.WebUtilities.FileBufferingReadStream.ReadAsync(??)
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at async System.IO.StreamReader.ReadBufferAsync(CancellationToken cancellationToken)
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at async System.IO.StreamReader.ReadToEndAsyncInternal()
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at async Microsoft.Azure.WebJobs.Extensions.Http.HttpRequestExtensions.ReadAsStringAsync(HttpRequest request) at C:\azure-webjobs-sdk-extensions\src\WebJobs.Extensions.Http\Extensions\HttpRequestExtensions.cs : 39
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at async Microsoft.Azure.WebJobs.Extensions.Http.HttpTriggerAttributeBindingProvider.HttpTriggerBinding.BindAsync(Object value,ValueBindingContext context) at C:\azure-webjobs-sdk-extensions\src\WebJobs.Extensions.Http\HttpTriggerAttributeBindingProvider.cs : 162
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at async Microsoft.Azure.WebJobs.Host.Triggers.TriggeredFunctionBinding1.BindCoreAsync[TTriggerValue](ValueBindingContext context,Object value,IDictionary2 parameters) at C:\projects\azure-webjobs-sdk-rqm4t\src\Microsoft.Azure.WebJobs.Host\Triggers\TriggeredFunctionBinding.cs : 56
End of inner exception
at Microsoft.Azure.WebJobs.Host.Executors.DelayedException.Throw() at C:\projects\azure-webjobs-sdk-rqm4t\src\Microsoft.Azure.WebJobs.Host\Executors\DelayedException.cs : 27
at async Microsoft.Azure.WebJobs.Host.Executors.FunctionExecutor.ParameterHelper.PrepareParametersAsync() at C:\projects\azure-webjobs-sdk-rqm4t\src\Microsoft.Azure.WebJobs.Host\Executors\FunctionExecutor.cs : 929
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at async Microsoft.Azure.WebJobs.Host.Executors.FunctionExecutor.ExecuteWithWatchersAsync(IFunctionInstanceEx instance,ParameterHelper parameterHelper,ILogger logger,CancellationTokenSource functionCancellationTokenSource) at C:\projects\azure-webjobs-sdk-rqm4t\src\Microsoft.Azure.WebJobs.Host\Executors\FunctionExecutor.cs : 507
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at async Microsoft.Azure.WebJobs.Host.Executors.FunctionExecutor.ExecuteWithLoggingAsync(IFunctionInstanceEx instance,FunctionStartedMessage message,FunctionInstanceLogEntry instanceLogEntry,ParameterHelper parameterHelper,ILogger logger,CancellationToken cancellationToken) at C:\projects\azure-webjobs-sdk-rqm4t\src\Microsoft.Azure.WebJobs.Host\Executors\FunctionExecutor.cs : 320
End of inner exception
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at async Microsoft.Azure.WebJobs.Host.Executors.FunctionExecutor.ExecuteWithLoggingAsync(IFunctionInstanceEx instance,FunctionStartedMessage message,FunctionInstanceLogEntry instanceLogEntry,ParameterHelper parameterHelper,ILogger logger,CancellationToken cancellationToken) at C:\projects\azure-webjobs-sdk-rqm4t\src\Microsoft.Azure.WebJobs.Host\Executors\FunctionExecutor.cs : 367
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at async Microsoft.Azure.WebJobs.Host.Executors.FunctionExecutor.TryExecuteAsync(IFunctionInstance functionInstance,CancellationToken cancellationToken) at C:\projects\azure-webjobs-sdk-rqm4t\src\Microsoft.Azure.WebJobs.Host\Executors\FunctionExecutor.cs : 108

Answer 1

@AyushGupta-1743 Thanks for reaching out. It looks like there might be a conflict in the library that might be causing the issue. A similar discussion in the below thread.
https://github.com/Azure/azure-functions-host/issues/980
https://github.com/Azure/Azure-Functions/issues/477

In case if you are still facing the issue then please share the repro so we can assist you.