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From "Yongjun Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-4983) Numeric usernames do not work with WebHDFS FS
Date Thu, 05 Dec 2013 04:07:37 GMT

    [ https://issues.apache.org/jira/browse/HDFS-4983?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13839784#comment-13839784
] 

Yongjun Zhang commented on HDFS-4983:
-------------------------------------

Thanks all for the discussion and comments. 

My 2 cents: If we simply change the default to support numerical user name but without configurability,
then for users who don't want to use numerical user name (and want to treat numerical user
name illegal), s/he doesn't have the flexibility.

 

> 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
>            Assignee: Yongjun Zhang
>              Labels: patch
>         Attachments: HDFS-4983.001.patch, HDFS-4983.002.patch, HDFS-4983.003.patch
>
>
> 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}



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