Timer trigger function stopped running between 12:30 AM and 1:30 PM today without any reason

Question

func-gen-route-est-mileage-ev-prod function app stopped running after 12:00AM on 3rd Dec. untill it was redeployed. Need a technical explanation of this problem. It is a production function app and such issues raise question on Azure service reliability.

Answer 1

Hi Pranab Nath,

Thanks for reaching out to Microsoft Q&A.

Upon investigating further, found that the Function App runtime encountered the below exceptions:

1. No job functions found. Try making your job classes and methods public. If you're using binding extensions (e.g. Azure Storage, ServiceBus, Timers, etc.) make sure you've called the registration method for the extension(s) in your startup code (e.g. builder.AddAzureStorage(), builder.AddServiceBus(), builder.AddTimers(), etc.).
2. Your app is using a deprecated version - 2.35.0 of extension bundles. Upgrade to a supported version: https://aka.ms/FunctionsBundlesUpgrade

And also, the function app failed to acquire Singleton lock for 3 times. Hope it helps!

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