how to check the number of edgenods, if I want to check namenode, I'm using the command: hdfs getconf -namenodes. How can i find edgenode?
By definition an edge node is a node that does not run any services and only has client configuration installed on it. Therefore, the cluster does not track edgenodes and there is no way to find a count of them. In theory, any host with the correct configuration could be an edge node for the cluster.