title: How to empty all the queues in Nifi at a time?
body: <p>I have started exploring NiFi. I have built some flow which is working. But i want to clear all the queues at a time to test the flow each time if i made any changes. I know we can stop and start each processor and test step by step. But i want to know is there a way we can clear all the queues at a time.</p>