Kinit on the NameNodes

This topic describes kinit on the NameNodes. These commands are run internally during HDFS service start up when the IBM Spectrum® Scale service is integrated.

On the NameNodes, run: # kinit -kt /etc/security/keytabs/nn.service.keytab nn/NN_HOSTNAME@REALM_NAME
where,
  • NN_HOSTNAME is the NameNode host name (FQDN).
  • REALM_NAME is the KDC Realm.
  • nn is the Kerberos NameNode naming convention created during Kerberos setup.

For example: kinit -kt /etc/security/keytabs/nn.service.keytab nn/c902f05x01.gpfs.net@IBM.COM.

Note: If in a non-root environment, this command is internally run with sudo privilege.

If HA, run the command on both the NameNodes.