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From "Kai Zheng (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-9947) Remove Kerberos specific login implementation out of UGI into separate class
Date Tue, 10 Sep 2013 22:57:51 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-9947?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13763657#comment-13763657
] 

Kai Zheng commented on HADOOP-9947:
-----------------------------------

To review the change to be made by this, please look at the doc attached in HADOOP-9797 or
reference the following link. Comments are welcome. Thanks.
https://issues.apache.org/jira/secure/attachment/12601113/Pluggable%20and%20Compatible%20UGI%20Change.pdf
                
> Remove Kerberos specific login implementation out of UGI into separate class
> ----------------------------------------------------------------------------
>
>                 Key: HADOOP-9947
>                 URL: https://issues.apache.org/jira/browse/HADOOP-9947
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: security
>            Reporter: Kai Zheng
>            Assignee: Kai Zheng
>
> As part of effort in HADOOP-9926 and HADOOP-9797, this particularly focuses on removing
Kerberos specific login implementations from UGI into separate classes based on the new login
framework. In this way, keytab login, ticket cache login and etc will be taken care of in
much modular approach, meanwhile it will simplify the UGI class greatly. As good side effect
of it, this change will also get rid of the relevant statics like keytab, principal etc in
UGI as such variables will be maintained in separate class. The change should be compatible,
it refactors and improves the implementation, keeping the public API. 

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