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From "Varun Vasudev (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-7430) User and Group mapping are incorrect in docker container
Date Tue, 07 Nov 2017 12:55:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-7430?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16241947#comment-16241947
] 

Varun Vasudev commented on YARN-7430:
-------------------------------------

[~eyang] - can you modify your path slightly - if the user is running non-privileged containers,
let the default be the current default(don't enable user mapping). If the user is running
privileged containers, let the default be to enable user mapping, with a note added to the
documentation about the difference in defaults between privileged and non-privileged containers.
That way we don't change the current behavior. What do you think?

> User and Group mapping are incorrect in docker container
> --------------------------------------------------------
>
>                 Key: YARN-7430
>                 URL: https://issues.apache.org/jira/browse/YARN-7430
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: security, yarn
>    Affects Versions: 2.9.0, 3.0.0
>            Reporter: Eric Yang
>            Assignee: Eric Yang
>            Priority: Blocker
>         Attachments: YARN-7430.001.patch
>
>
> In YARN-4266, the recommendation was to use -u [uid]:[gid] numeric values to enforce
user and group for the running user.  In YARN-6623, this translated to --user=test --group-add=group1.
 The code no longer enforce group correctly for launched process.  
> In addition, the implementation in YARN-6623 requires the user and group information
to exist in container to translate username and group to uid/gid.  For users on LDAP, there
is no good way to populate container with user and group information. 



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