Hey, so I want to create a flow that creates a putemail trigger when NO files are present in a hdfs path for a certain date range: my current flow is GETHDFS->  ROUTEONATTRIBUTE(has the proper date matching criteria) -->MATCHED(should be getting files here) -->UNMATCHED(when this outputs zero I want to receive an email alert)    RouteOnAttribute Logic: ${Path:substring(0,6):equals(${now():toNumber():minus(86400000):format('yyyyMM')})}   Pretty much if I find no files within the current month(last 20 days) then I need to receive an email alert. How do I get an alert when there are no files that fit the criteria?    @Matt  Thank you matt sorry for yet another question. ... View more

Good Afternoon, I am creating an apache nifi flow in which I want to flow files from Oracle DB to IBM/DB2, I have completed that part of the flow. I need help with configuring a way to reconcile failed files, I want to know exactly which files failed and the error which caused it. I'm considering using a PUTHDFS to put the failed files into a HIVE TABLE that way I can capture the flow file error. I would then re-enter the failure files back into the flow via GETHDFS. So, I'm curious is this possible? Also is there a mechanism in NiFi to identify the singular file that fails in a batch? ... View more