title: How to trigger an alert notification of a long-running process in Azure Data Factory V2 using either Azure Monitor or ADF itself?
body: <p>I've been trying to find the best way to trigger an alert when an ADF task (i.e. CopyActivity or Stored Procedure Task) has been running for more than N hours, I wanted to use the Azure Monitor as it is one of the recommended notification services in Azure, however I have not been able to find a "Running" criteria, hence I had to play with the available criteria (Succeeded and Failed) and check this every N hours, however this is still not perfect as I don't know when the process started and we may run the process manually multiple times a day, is there any way you would recommend doing this? like a event-based notification that listens to some time variable and as soon as it is greater than the threshold triggers an email notification?</p>