Azure Function: An operation was attempted on a nonexistent network connection. (0x800704CD)

Anton 1 Reputation point
2022-05-30T22:47:52.353+00:00

Hello Everyone,

since some days I get the following error for a function that worked before and I did not changed any config or code.

Error:
An operation was attempted on a nonexistent network connection. (0x800704CD)

This error is not always the case and sometimes functions run trough.
I use Azure Cosmos DB bindings for reading and writing data.

The error seems to occur in an early stage so I cant log anything in the function and see where it happens.

Azure Functions
Azure Functions
An Azure service that provides an event-driven serverless compute platform.
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  1. MayankBargali-MSFT 68,396 Reputation points
    2022-06-03T02:46:44.547+00:00

    @Anton Thanks for reaching out. As per the error message "An operation was attempted on a nonexistent network connection. (0x800704CD)" it looks like a network issue and there could be different reasons why the function app is unable to create the connection with Cosmo DB. One of the reasons could be port exhaustion issue where you could have observed the issue intermittently when there is higher load than your average load.

    I suggest you to verify this document to validate how you are creating the connection with Cosmo DB. In case if you have validated this and still facing the issue then I will suggest you review the Diagnose and solve problems blade on your Function app to validate if there are any insights that provide more details on your error/exception/issue and mitigation steps to resolve the issue.

    In case if the above doesn't help, then I can help to review your function logs/metrics to at my end to assist you further.
    Feel free to get back to me if you have any queries or concerns.

    0 comments
  2. Ankur Ranpariya 21 Reputation points
    2022-09-21T09:45:21.733+00:00

    Hi @MayankBargali-MSFT
    I am also facing the same issue randomly, in my case, it happened for binding parameters with the HTTP trigger function.
    I am not sure what is the cause of this.

    The similarity between my configuration and @Anton is we both are using Azure Cosmos Db to connect. but might our way of connecting with the database be different.
    I am using EF Core 6.0 with .NET 6. and for connection handling, I am using DBContextClientFactory via Dependency Injection with Scoped for Inject DbContext scope.

    I am not sure it should cause the issue of binding value with the HTTP Trigger function. I have added an exception message from Application Insight.
    Message 

    Exception while executing function: GetJoinRequestList Exception binding parameter 'req' The client has disconnected An operation was attempted on a nonexistent network connection. (0x800704CD)

    CallStack 

    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=3.0.34.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35: C:\projects\azure-webjobs-sdk-rqm4t\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=3.0.34.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35: C:\projects\azure-webjobs-sdk-rqm4t\src\Microsoft.Azure.WebJobs.Host\Executors\FunctionExecutor.cs:108)  
Inner exception System.InvalidOperationException handled at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw:  
   at Microsoft.Azure.WebJobs.Host.Executors.DelayedException.Throw (Microsoft.Azure.WebJobs.Host, Version=3.0.34.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35: C:\projects\azure-webjobs-sdk-rqm4t\src\Microsoft.Azure.WebJobs.Host\Executors\DelayedException.cs:27)  
   at Microsoft.Azure.WebJobs.Host.Executors.FunctionExecutor+ParameterHelper+<PrepareParametersAsync>d__36.MoveNext (Microsoft.Azure.WebJobs.Host, Version=3.0.34.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35: C:\projects\azure-webjobs-sdk-rqm4t\src\Microsoft.Azure.WebJobs.Host\Executors\FunctionExecutor.cs:922)  
   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.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=3.0.34.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35: C:\projects\azure-webjobs-sdk-rqm4t\src\Microsoft.Azure.WebJobs.Host\Executors\FunctionExecutor.cs:492)  
   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.GetResult (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=3.0.34.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35: C:\projects\azure-webjobs-sdk-rqm4t\src\Microsoft.Azure.WebJobs.Host\Executors\FunctionExecutor.cs:306)  
Inner exception Microsoft.AspNetCore.Connections.ConnectionResetException handled at Microsoft.Azure.WebJobs.Host.Executors.DelayedException.Throw:  
   at Microsoft.AspNetCore.Server.IIS.Core.IO.AsyncIOOperation.GetResult (Microsoft.AspNetCore.Server.IIS, Version=6.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60)  
   at System.Runtime.CompilerServices.ValueTaskAwaiter`1.GetResult (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)  
   at Microsoft.AspNetCore.Server.IIS.Core.IISHttpContext+<ReadBody>d__385.MoveNext (Microsoft.AspNetCore.Server.IIS, Version=6.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60)  
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)  
   at System.IO.Pipelines.Pipe.GetReadResult (System.IO.Pipelines, Version=6.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51)  
   at System.IO.Pipelines.Pipe.ReadAsync (System.IO.Pipelines, Version=6.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51)  
   at System.IO.Pipelines.Pipe+DefaultPipeReader.ReadAsync (System.IO.Pipelines, Version=6.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51)  
   at Microsoft.AspNetCore.Server.IIS.Core.IISHttpContext+<ReadAsync>d__381.MoveNext (Microsoft.AspNetCore.Server.IIS, Version=6.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60)  
   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.ValueTaskAwaiter`1.GetResult (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)  
   at Microsoft.AspNetCore.Server.IIS.Core.HttpRequestStream+<ReadAsyncInternal>d__10.MoveNext (Microsoft.AspNetCore.Server.IIS, Version=6.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60)  
   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.ValueTaskAwaiter`1.GetResult (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)  
   at Microsoft.AspNetCore.WebUtilities.FileBufferingReadStream+<ReadAsync>d__40.MoveNext (Microsoft.AspNetCore.WebUtilities, Version=6.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60)  
   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.IO.StreamReader+<ReadBufferAsync>d__71.MoveNext (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)  
   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.IO.StreamReader+<ReadToEndAsyncInternal>d__65.MoveNext (System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)  
   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.Extensions.Http.HttpRequestExtensions+<ReadAsStringAsync>d__4.MoveNext (Microsoft.Azure.WebJobs.Extensions.Http, Version=3.2.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35: C:\azure-webjobs-sdk-extensions\src\WebJobs.Extensions.Http\Extensions\HttpRequestExtensions.cs:39)  
   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.Extensions.Http.HttpTriggerAttributeBindingProvider+HttpTriggerBinding+<BindAsync>d__10.MoveNext (Microsoft.Azure.WebJobs.Extensions.Http, Version=3.2.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35: C:\azure-webjobs-sdk-extensions\src\WebJobs.Extensions.Http\HttpTriggerAttributeBindingProvider.cs:162)  
   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.Triggers.TriggeredFunctionBinding`1+<BindCoreAsync>d__8.MoveNext (Microsoft.Azure.WebJobs.Host, Version=3.0.34.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35: C:\projects\azure-webjobs-sdk-rqm4t\src\Microsoft.Azure.WebJobs.Host\Triggers\TriggeredFunctionBinding.cs:57)  
Inner exception System.Runtime.InteropServices.COMException handled at Microsoft.AspNetCore.Server.IIS.Core.IO.AsyncIOOperation.GetResult:
    0 comments
  3. Valerio 1 Reputation point
    2022-10-17T12:55:53.317+00:00

    Hello,
    we are getting the same on our enviroment.

    The HTTP function just push the content to service bus with normal bindings.

    Most of the times works but we have this random errors.

    The whole code is below: 

    module.exports = async function (context, req) {  
    context.log('JavaScript HTTP trigger function processed a request.');  
    context.log(JSON.stringify(req))  
  
  
    //sending the data received from to service bus  
    context.bindings.outputSbMsg = req;  
  

};

    error: An operation was attempted on a nonexistent network connection. (0x800704CD)

    0 comments