@Althotta  NiFi node disconnections are rarely the result of some underlying issue in NiFi code.  Node disconnection are more commonly the result of resource consumption or configurations not being optimal in a NiFi deployment.   This particular post if two years old.  You should create a new post and provide details around your node disconnection issue and the specific Apache NiFi version you are running to get better assistance.  The NiFi cluster UI is a good place to start.  The "view details" icon to the far left for each node will provide you with node events which will include disconnect events along with reason.  Please help our community grow. If you found any of the suggestions/solutions provided helped you with solving your issue or answering your question, please take a moment to login and click "Accept as Solution" on one or more of them that helped. Thank you, Matt ... View more