@udayAle @ep_gunner  When NiFi is brought down, the current state (stopped, started, enabled, disabled) of all components is retained and on startup that same state is set on the components.  Only time this is not true is when the property "nifi.flowcontroller.autoResumeState" is set to false in the nifi.properties file.  When set to false a restart of NiFi would result in all components in a stopped state.  In a production environment, this property should be set to true.  Perhaps you can share more details on the maintenance process you are using as I am not clear on how your maintenance is impacting the last known state of some components. If you found that the provided solution(s) assisted you with your query, please take a moment to login and click Accept as Solution below each response that helped. Thank you, Matt ... View more