@Override
  public synchronized void createHostComponents(Set<ServiceComponentHostRequest> requests)
      throws AmbariException, AuthorizationException {

    createHostComponents(requests, false);
  }
The KerberosHelper to help setup for enabling for disabling Kerberos
ambari-server/src/main/java/org/apache/ambari/server/controller/AmbariManagementControllerImpl.java