docs: private static String getFqdnHostName(InetAddress inetAddress) {
  		String fqdnHostName;
  		try {
  			fqdnHostName = inetAddress.getCanonicalHostName();
  		} catch (Throwable t) {
  			LOG.warn("Unable to determine the canonical hostname. Input split assignment (such as " +
  				"for HDFS files) may be non-local when the canonical hostname is missing.");
  			LOG.debug("getCanonicalHostName() Exception:", t);
  			fqdnHostName = inetAddress.getHostAddress();
  		}
  
  		return fqdnHostName;
  	}