@stupidnickname
All nodes in a NiFi cluster execute their own copy of the flow.xml.gz. I order for nodes to be members of the same NiFi cluster, all nodes must be running the flow.xml.gz file with same exact flow contents.
Each node in a NiFi cluster loads its FlowFiles (FlowFiles are what traverse between one processor component to another and consist of metadata and content) and is unaware of the FlowFiles being processed by other nodes in a NiFi cluster.
In a NiFi cluster there is the concept of a primary node. Some processors can be configured to execute on the primary node only. If the primary elected node goes down , a new node will be elected as primary node and those primary node only configured processors will start executing on that newly elected primary node.
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Thank you,
Matt
