How to format a Hadoop Master Node

Question

Hi Guys,

I am new in Hadoop technology. I have configured the hadoop namenode. But how to format the namenode?

Answer 1

Hi@akhtar,

To start the Hadoop NameNode, you need to format the node first. Otherwise, the NameNode service will not start. You can use the below command to format your NameNode.

$ hadoop namenode -format