Default Namenode port of HDFS is 50070.But I have come across at some places 8020 or 9000

Question

When I setup the hadoop cluster, I read the namenode runs on 50070 and I set up accordingly and it\'s running fine.

But in some books I have come across name node ad

Answer 1

9000 is the default HDFS service port.This does not have a web UI.50070 is the default NameNode web UI port (Although, in hadoop 3.0 onwards 50070 is updated to 9870)