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From "Allen Wittenauer (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-9296) Authenticating users from different realm without a trust relationship
Date Wed, 13 Feb 2013 18:18:13 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-9296?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13577796#comment-13577796
] 

Allen Wittenauer commented on HADOOP-9296:
------------------------------------------

How does this work when multiple grids are involved?  i.e. distcp
                
> Authenticating users from different realm without a trust relationship
> ----------------------------------------------------------------------
>
>                 Key: HADOOP-9296
>                 URL: https://issues.apache.org/jira/browse/HADOOP-9296
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: security
>            Reporter: Benoy Antony
>            Assignee: Benoy Antony
>         Attachments: HADOOP-9296-1.1.patch, multirealm.pdf
>
>
> Hadoop Masters (JobTracker and NameNode) and slaves (Data Node and TaskTracker) are part
of the Hadoop domain, controlled by Hadoop Active Directory. 
> The users belong to the CORP domain, controlled by the CORP Active Directory. 
> In the absence of a one way trust from HADOOP DOMAIN to CORP DOMAIN, how will Hadoop
Servers (JobTracker, NameNode) authenticate  CORP users ?
> The solution and implementation details are in the attachement

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