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Error in FunctionInvoker

See original GitHub issue

I have a timer triggered C# function, which has been running successfully for a while but failed last night, but the logs don’t seem to point to an issue with my own code. I manually ran it today and it worked fine. Here’s the output from the failed invocation of the function:

...obs.Script.Description.FunctionInvokerBase.<Invoke>d__23.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.Azure.WebJobs.Host.Executors.FunctionInvoker`1.<InvokeAsync>d__0.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.Azure.WebJobs.Host.Executors.FunctionExecutor.<InvokeAsync>d__53.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.Azure.WebJobs.Host.Executors.FunctionExecutor.<ExecuteWithWatchersAsync>d__3b.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.Azure.WebJobs.Host.Executors.FunctionExecutor.<ExecuteWithLoggingAsync>d__36.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd(Task task)
   at Microsoft.Azure.WebJobs.Host.Executors.FunctionExecutor.<ExecuteWithLoggingAsync>d__1a.MoveNext()
   --- End of inner exception stack trace ---

Any ideas what might cause this, or how I can debug further?

Issue Analytics

State:
Created 7 years ago
Comments:9 (5 by maintainers)

Top GitHub Comments

1reaction

markheathcommented, Nov 10, 2016

I’m guessing the full logs are in Azure Table storage, but would be great to see all the function output in the portal when you look at a failed invocation on the monitor tab. My function starts with a log.Info message so the fact I couldn’t see that made me assume it hadn’t got as far as running at all.

And BTW the bug was obvious once I knew it was an IndexOutOfRangeException - I had a +1 instead of -1, so thanks again for helping me track down the problem.

0reactions

fabiocavcommented, Nov 10, 2016

I figured that as soon as you had the exception type, the fix would likely be pretty obvious 😃 That’s why making sure that information is surfaced is so important.

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