To my point of view the situation is simple. - your queue does not exist if your script is not running because your queue is not durable and then your queue will exist if and only if your script is running (because when running it creates the exchange, the queue, etc). - NiFi requires that your queue exist to connect to it (as indicated in the logs). - if your run your script, the queue is created, then there is no error in NiFi. But since your script does not send data to the queue, NiFi has nothing to consume and transfer. What you want is something that send data to a queue (preferably a durable one) and use NiFi to pull data from this queue.
... View more
