Steps to avoid entering password while starting Apache hadoop

When we start hadoop it will asks for the password like below

To avoid entering the password please follow the below steps:

1. Generate the ssh key without password

2. Copy  id_rsa.pub to authorized_keys with the below command

3. Now start ssh with localhost it will not ask for password now

4. Start the hadoop now

It will not ask for password now.

5. Check with jps