@orekxl @biblio_gr  The following community article will help you understand what really happens when a user chooses to click on "terminate" on a stopping NiFi processor with active threads" https://community.cloudera.com/t5/Community-Articles/Understanding-NiFi-s-quot-Terminate-quot-option-on-running/ta-p/355433 If you found this assisted you with your query, please take a moment to login and click "ACCEPT as Solution" below this response. Thank you, Matt ... View more