NAR #1 shows an old standard processors JAR being included: nifi-standard-processors-0.0.1-incubating.jar I believe that could be a problem, you don't want the processors from another NAR included in your NAR. Basically this means the standard processors are included twice, once from the standard NAR and once from your custom NAR #1. When NiFi starts it scans the classpath and can sometimes find them first from standard NAR, or first from your NAR. If it finds them first from your NAR then it will load them from there which results in attempting to make API calls on them that are no longer compatible with 1.1.0. ... View more

There are two solutions that would work well here... 1) Have the the import process distribute the files evenly to all the NiFi nodes, then each NiFi node doesn't have to worry about anything and just processes the files on the local file system of that node. I think this is what you meant in #3. 2) Mount a shared network drive to all the nodes, upload the files to the shared drive, then use ListFile running on primary node only to list the remote directory, followed by an Remote Process Group to distribute the listings to all the NiFi nodes, then a FetchFile for each node to retrieve the listings. More details on the List+Fetch pattern are here: https://community.hortonworks.com/articles/16120/how-do-i-distribute-data-across-a-nifi-cluster.html ... View more

This type of information is typically stored in provenance data... You can use the SiteToSiteProvenanceReportingTask to get access to provenance events in JSON format and then filter the events to find the ones you are interested in. Each provenance event should have an event time which is the time the event was reports, as well as the lineage start time which is the time of the first event in the given lineage. So event time - lineage start time would be the time it took to get to current event. ... View more

Currently a rolling upgrade is not supported and you'll have to stop all nodes and start them back up with 1.2.0.3.0.0 at the same time. If that still doesn't work please report back. ... View more