Hi, I am looking for a way to monitor flow files as they are ingested into the start of the flow and end up being published to Kafka. I have looked at the following link (https://pierrevillard.com/2017/05/15/monitoring-nifi-workflow-sla/), but It's not exactly what I am looking for. I would basically like to monitor the flow files as they go trough each processor and if they take longer than a certain amount of time to reach a certain point, send out a mail notification. I was thinking of adding a RouteOnAttribute in multiple locations in the flow, but I am not sure if this is the best way to do this. I am also not sure if the time the flowfile came in, will be kept as an attribute throughout the whole flow or if a new time is generate each time the flow file hits a new processor. ... View more