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From "Bolke de Bruin (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-15996) Plugin interface to support more complex usernames in Hadoop
Date Sat, 29 Dec 2018 13:04:00 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-15996?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Bolke de Bruin updated HADOOP-15996:
------------------------------------
    Attachment: HADOOP-15996.0007.patch
        Status: Patch Available  (was: Open)

* Addressed all outstanding comments afaik.
 * Documentation updated and examples corrected

> Plugin interface to support more complex usernames in Hadoop
> ------------------------------------------------------------
>
>                 Key: HADOOP-15996
>                 URL: https://issues.apache.org/jira/browse/HADOOP-15996
>             Project: Hadoop Common
>          Issue Type: New Feature
>          Components: security
>            Reporter: Eric Yang
>            Assignee: Bolke de Bruin
>            Priority: Major
>         Attachments: 0001-HADOOP-15996-Make-auth-to-local-configurable.patch, 0001-Make-allowing-or-configurable.patch,
0001-Simple-trial-of-using-krb5.conf-for-auth_to_local-ru.patch, 0002-HADOOP-15996-Make-auth-to-local-configurable.patch,
0003-HADOOP-15996-Make-auth-to-local-configurable.patch, 0004-HADOOP-15996-Make-auth-to-local-configurable.patch,
0005-HADOOP-15996-Make-auth-to-local-configurable.patch, HADOOP-15996.0005.patch, HADOOP-15996.0006.patch,
HADOOP-15996.0007.patch
>
>
> Hadoop does not allow support of @ character in username in recent security mailing list
vote to revert HADOOP-12751.  Hadoop auth_to_local rule must match to authorize user to login
to Hadoop cluster.  This design does not work well in multi-realm environment where identical
username between two realms do not map to the same user.  There is also possibility that
lossy regex can incorrectly map users.  In the interest of supporting multi-realms, it maybe
preferred to pass principal name without rewrite to uniquely distinguish users.  This jira
is to revisit if Hadoop can support full principal names without rewrite and provide a plugin
to override Hadoop's default implementation of auth_to_local for multi-realm use case.



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