Hello @Teej    The short answer is that FetchX (FetchFTP for example) is Nifi cluster friendly, while GetX processors are not.   There is a common pattern ("List-Fetch") of using a single node to ListX then pass that List to all nodes in the cluster to do parallelized FetchX - the Fetch will be aware that there are multiple nodes and only Fetch each file once.    If you have a NiFi cluster and you are using the GetSFTP processor, you would have to configure that processor to run on the primary node only so the other nodes in the cluster wouldn't try to pull the same files.    You can read more about it here. ... View more