.NET Isolated V4 Azure函数ServiceBus触发时TaskCanceledException问题求助

我们运行着一个基于.NET7的.NET Isolated V4 Azure函数应用，包含三个使用ServiceBusTrigger的函数。发现少量执行失败时抛出如下异常：

System.Threading.Tasks.TaskCanceledException at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess

该异常来自函数框架而非业务代码，已排查确认业务代码中不存在未等待异步任务的问题。每个函数仅执行以下简单操作：

• 反序列化消息内容
• 调用HTTP端点
• 向App Insights记录指标

更严重的是，这类异常不会导致Service Bus消息进入死信队列，造成生产关键数据丢失。

完整堆栈跟踪 #

{"assembly":"System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e","method":"System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess","level":0,"line":0}
{"assembly":"System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e","method":"System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification","level":1,"line":0}
{"assembly":"Microsoft.Azure.WebJobs.Script, Version=4.15.0.0, Culture=neutral, PublicKeyToken=null","method":"Microsoft.Azure.WebJobs.Script.Description.WorkerFunctionInvoker+<InvokeCore>d__9.MoveNext","level":2,"line":96,"fileName":"/src/azure-functions-host/src/WebJobs.Script/Description/Workers/WorkerFunctionInvoker.cs"}
{"assembly":"System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e","method":"System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw","level":3,"line":0}
{"assembly":"System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e","method":"System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess","level":4,"line":0}
{"assembly":"System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e","method":"System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification","level":5,"line":0}
{"assembly":"Microsoft.Azure.WebJobs.Script, Version=4.15.0.0, Culture=neutral, PublicKeyToken=null","method":"Microsoft.Azure.WebJobs.Script.Description.FunctionInvokerBase+<Invoke>d__24.MoveNext","level":6,"line":82,"fileName":"/src/azure-functions-host/src/WebJobs.Script/Description/FunctionInvokerBase.cs"}
{"assembly":"System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e","method":"System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw","level":7,"line":0}
{"assembly":"System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e","method":"System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess","level":8,"line":0}
{"assembly":"System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e","method":"System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification","level":9,"line":0}
{"assembly":"Microsoft.Azure.WebJobs.Host, Version=3.0.36.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35","method":"Microsoft.Azure.WebJobs.Host.Executors.VoidTaskMethodInvoker`2+<InvokeAsync>d__2.MoveNext","level":10,"line":20,"fileName":"C:\\projects\\azure-webjobs-sdk-rqm4t\\src\\Microsoft.Azure.WebJobs.Host\\Executors\\VoidTaskMethodInvoker.cs"}
{"assembly":"System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e","method":"System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw","level":11,"line":0}
{"assembly":"System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e","method":"System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess","level":12,"line":0}
{"assembly":"System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e","method":"System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification","level":13,"line":0}
{"assembly":"Microsoft.Azure.WebJobs.Host, Version=3.0.36.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35","method":"Microsoft.Azure.WebJobs.Host.Executors.FunctionInvoker`2+<InvokeAsync>d__10.MoveNext","level":14,"line":52,"fileName":"C:\\projects\\azure-webjobs-sdk-rqm4t\\src\\Microsoft.Azure.WebJobs.Host\\Executors\\FunctionInvoker.cs"}
{"assembly":"System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e","method":"System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw","level":15,"line":0}
{"assembly":"System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e","method":"System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess","level":16,"line":0}
{"assembly":"System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e","method":"System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification","level":17,"line":0}
{"assembly":"Microsoft.Azure.WebJobs.Host, Version=3.0.36.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35","method":"Microsoft.Azure.WebJobs.Host.Executors.FunctionExecutor+<InvokeWithTimeoutAsync>d__33.MoveNext","level":18,"line":581,"fileName":"C:\\projects\\azure-webjobs-sdk-rqm4t\\src\\Microsoft.Azure.WebJobs.Host\\Executors\\FunctionExecutor.cs"}
{"assembly":"System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e","method":"System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw","level":19,"line":0}
{"assembly":"System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e","method":"System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess","level":20,"line":0}
{"assembly":"System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e","method":"System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification","level":21,"line":0}
{"assembly":"Microsoft.Azure.WebJobs.Host, Version=3.0.36.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35","method":"Microsoft.Azure.WebJobs.Host.Executors.FunctionExecutor+<ExecuteWithWatchersAsync>d__32.MoveNext","level":22,"line":527,"fileName":"C:\\projects\\azure-webjobs-sdk-rqm4t\\src\\Microsoft.Azure.WebJobs.Host\\Executors\\FunctionExecutor.cs"}
{"assembly":"System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e","method":"System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw","level":23,"line":0}
{"assembly":"System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e","method":"System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess","level":24,"line":0}
{"assembly":"System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e","method":"System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification","level":25,"line":0}
{"assembly":"Microsoft.Azure.WebJobs.Host, Version=3.0.36.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35","method":"Microsoft.Azure.WebJobs.Host.Executors.FunctionExecutor+<ExecuteWithLoggingAsync>d__26.MoveNext","level":26,"line":306,"fileName":"C:\\projects\\azure-webjobs-sdk-rqm4t\\src\\Microsoft.Azure.WebJobs.Host\\Executors\\FunctionExecutor.cs"}
{"assembly":"System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e","method":"System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw","level":27,"line":0}
{"assembly":"Microsoft.Azure.WebJobs.Host, Version=3.0.36.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35","method":"Microsoft.Azure.WebJobs.Host.Executors.FunctionExecutor+<ExecuteWithLoggingAsync>d__26.MoveNext","level":28,"line":352,"fileName":"C:\\projects\\azure-webjobs-sdk-rqm4t\\src\\Microsoft.Azure.WebJobs.Host\\Executors\\FunctionExecutor.cs"}
{"assembly":"System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e","method":"System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw","level":29,"line":0}
{"assembly":"System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e","method":"System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess","level":30,"line":0}
{"assembly":"System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e","method":"System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification","level":31,"line":0}
{"assembly":"Microsoft.Azure.WebJobs.Host, Version=3.0.36.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35","method":"Microsoft.Azure.WebJobs.Host.Executors.FunctionExecutor+<TryExecuteAsync>d__18.MoveNext","level":32,"line":108,"fileName":"C:\\projects\\azure-webjobs-sdk-rqm4t\\src\\Microsoft.Azure.WebJobs.Host\\Executors\\FunctionExecutor.cs"}

更新信息 #

Azure Functions Host官方论坛存在相同问题（Issue 9147）

内容的提问来源于stack exchange，提问作者Tom Troughton