code: public static String getJobMasterHostNotConfiguredMessage(String serviceName) {
      return getHostNotConfiguredMessage(serviceName, "job master", PropertyKey.JOB_MASTER_HOSTNAME,
          PropertyKey.JOB_MASTER_EMBEDDED_JOURNAL_ADDRESSES);
    }
docs: Returns a unified message for cases when the job master hostname cannot be determined.
  
  @param serviceName the name of the service that couldn't run. i.e. Alluxio worker, fsadmin
  shell, etc.
  @return a string with the message