Azure function scheduled trigger creates multiple instances

Question

Azure function scheduled trigger creates multiple instances. My code is written in Node JS. Every time I fire off the function -- whether locally or remotely -- multiple instances are created. I'd only expect one instance.

Answer 1

@Arave Thanks for reaching out. Can you please confirm how you have confirmed that scheduled trigger creates multiple instances. The timer trigger in Azure Functions creates only one instance of a timer-triggered function, even if the function app scales out to multiple instances. The timer trigger uses a storage lock to ensure that there is only one timer instance. If two function apps share the same identifying configuration and each uses a timer trigger, only one timer runs.

Reference : https://learn.microsoft.com/en-us/azure/azure-functions/functions-bindings-timer?tabs=in-process&pivots=programming-language-csharp#function-apps-sharing-storage