[ https://issues.apache.org/jira/browse/HDFS-4983?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13712172#comment-13712172 ]
Harsh J commented on HDFS-4983: ------------------------------- Hi Kousuke, Thanks for looking into this! If you mean WebHDFS' {{hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/web/resources/UserProvider.java}}, then I don't see an RegEx in it currently. The only RegEx I've noticed is in Domain there which am pretty sure is the reason it fails. For HttpFs, we configure httpfs.user.provider.user.pattern with a more free-er regex and then there's no problem with it. But WebHDFS has a problem. > Numeric usernames do not work with WebHDFS FS > --------------------------------------------- > > Key: HDFS-4983 > URL: https://issues.apache.org/jira/browse/HDFS-4983 > Project: Hadoop HDFS > Issue Type: Improvement > Components: webhdfs > Affects Versions: 2.0.0-alpha > Reporter: Harsh J > > Per the file > hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/web/resources/UserParam.java, > the DOMAIN pattern is set to: {{^[A-Za-z_][A-Za-z0-9._-]*[$]?$}}. > Given this, using a username such as "123" seems to fail for some reason > (tried on insecure setup): > {code} > [123@host-1 ~]$ whoami > 123 > [123@host-1 ~]$ hadoop fs -fs webhdfs://host-2.domain.com -ls / > -ls: Invalid value: "123" does not belong to the domain > ^[A-Za-z_][A-Za-z0-9._-]*[$]?$ > Usage: hadoop fs [generic options] -ls [-d] [-h] [-R] [<path> ...] > {code} -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira