I setup an Azure function which is set to run with a timer trigger every 10 minutes (CRON schedule is set to 0 */10 * * * *) . The function is running and everything works well, but suddenly after 3 days, the function is no longer invoked. When I restarted the service, it returns to normal and runs every 10 minutes. This problem happened 3 times.
Is there any explanation for it ?
Are you running on consumption plan or a dedicated web app?
I'm assuming this is dedicated web app, as consumption has a built in timeout of 5 min to avoid runaway functions.
You can set a timeout value for functions in host.json which will kill these runaway functions and restart automatically. You can also add verbose logging settings in host.json to help determine why these functions aren't completing.
