@Override
  public CommandReport execute(ConcurrentMap<String, Object> requestSharedDataContext) throws AmbariException, InterruptedException {

    Cluster cluster = getCluster();
    if (cluster.getSecurityType().equals(SecurityType.NONE)) { // double check this is done in a non secure environment
      removeKerberosArtifact(cluster);
    }

    return createCommandReport(0, HostRoleStatus.COMPLETED, "{}", actionLog.getStdOut(), actionLog.getStdErr());
  }
@param requestSharedDataContext a Map to be used a shared data among all ServerActions related
                                to a given request
@return
@throws AmbariException
@throws InterruptedException
ambari-server/src/main/java/org/apache/ambari/server/serveraction/kerberos/CleanupServerAction.java