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Hong Tang commented on HADOOP-6682: ----------------------------------- The regex IPV4BKN needs some change because in job history dots (.) are escaped with double backslashes. > NetUtils:normalizeHostName does not process hostnames starting with [a-f] > correctly > ----------------------------------------------------------------------------------- > > Key: HADOOP-6682 > URL: https://issues.apache.org/jira/browse/HADOOP-6682 > Project: Hadoop Common > Issue Type: Bug > Components: io > Reporter: Jakob Homan > > public static String normalizeHostName(String name) { > if (Character.digit(name.charAt(0), 16) != -1) { > return name; > This code is attempting to short-circuit the hostname->ip resolution on the > assumption that if name starts with a digit, it's already an ip address. > This is of questionable value, but because it checks for a hex digit, it will > fail on names starting with [a-f]. Such names will not be converted to an ip > address, but be returned unchanged. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.