Answer Posted / huma
There are only 2 types of nodes.
1) Physical Node (that uses actual physical resource/CPU)
2) Logical Node (that uses sub-operator CPU processes and is a sub-set of a physical node).
Conductor node is an additional name given to the node where the parallel engine process starts in a job.
Most of the people have mentioned section leader and player nodes but those are the processes not nodes that are used to communicate the processing between different stages and nodes.
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