What do edge nodes mean in Hadoop?

Question

What do edge nodes mean in Hadoop?

Answer 1

The interfaces between the Hadoop cluster any external network are called the edge nodes. These are also called gateway nodes as they provide access to-and-from between the Hadoop cluster and other applications. Administration tools and client-side applications are generally the primary utility of these nodes. 

To grasp the concepts like edge nodes in Hadoop, you can sign up for Hadoop Online Training.