@Arullaldivakar Jayapalan For 1, I think you can use Rules feature of UpdateAttribute : https://nifi.apache.org/docs/nifi-docs/components/org.apache.nifi/nifi-update-attribute-nar/1.4.0/org.apache.nifi.processors.attributes.UpdateAttribute/additionalDetails.html You can for instance add a rule to compare between current date (now(YYYYMMDD) and the one stored in the state. If it's different, set seq to zero. You can have three attributes for instance Date Seq Filename which is a concat of the two For storing (date,max), I think the best is to use an external data store (MySQL for instance) and use NiFi to store the correct values. NiFi is not meant to keep data ... it's a data mover like DHL. Please let me know if you succeed in implementing this. Thanks ... View more