Azure function (Time trigger) is triggering only when opening the Azure portal

Question

I have created a Time trigger Azure function, which is triggered in 2 Hrs of interval. Every time I open the Azure portal, it is triggered and after that, it is not getting triggered.

I have searched a few links in Google but didn't get any suitable solution. Can anyone please help me out?

[FunctionName("MailFailureFucntion")]
public static void Run([TimerTrigger("*/30 * * * *")] TimerInfo myTimer, ILogger log)  
{

 // my code - connecting SQL and send mail

}

Initially I have tried with 0 */2 * * * - 2 Hrs interval. Then I have tried with */30 * * * *

question from:https://stackoverflow.com/questions/65917602/azure-function-time-trigger-is-triggering-only-when-opening-the-azure-portal

Answer 1

Here is a cheat sheet for Azure Function Cron Expresion

https://arminreiter.com/2017/02/azure-functions-time-trigger-cron-cheat-sheet/

In your case code may look like(Runs every 2 hours)

public static void Run([TimerTrigger("0 0 */2 * * *")]TimerInfo myTimer, ILogger log)

I would also recommend to check runOnStartup and make sure that is set to false

https://docs.microsoft.com/en-us/azure/azure-functions/functions-bindings-timer?tabs=python#configuration