In this recipe, we will be configuring Kerberos for a Hadoop cluster and enabling the authentication of services using tokens. Each service and user must have its principal created and imported to the
keytab files. These
keytab files should be available to the Hadoop daemons to read the passwords and perform operations.
It is assumed that the user has completed the previous recipe "Kerberos Server Setup" and is comfortable using Kerberos.
Make sure that the user has a running cluster with HDFS or YARN fully functional in a multinode cluster and a Kerberos server set up.