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From "Kai Zheng (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-9797) Pluggable and compatible UGI change
Date Tue, 30 Jul 2013 08:35:50 GMT
Kai Zheng created HADOOP-9797:

             Summary: Pluggable and compatible UGI change
                 Key: HADOOP-9797
                 URL: https://issues.apache.org/jira/browse/HADOOP-9797
             Project: Hadoop Common
          Issue Type: Sub-task
          Components: security
            Reporter: Kai Zheng
            Assignee: Kai Zheng
             Fix For: 3.0.0

As already widely discussed current UGI related classes needs to be improved in many aspects.
This is to improve and make UGI so that it can be: 
* Pluggable, new authentication method with its login module can be dynamically registered
and plugged without having to change the UGI class;

* Extensible, login modules with their options can be dynamically extended and customized
so that can be reusable elsewhere, like in TokenAuth;
* No Kerberos relevant, remove any Kerberos relevant functionalities out of it to make it
simple and suitable for other login mechanisms; 

* Of appropriate abstraction and API, with improved abstraction and API it’s possible to
allow authentication implementations not using JAAS modules;

* Compatible, should be compatible with previous deployment and authentication methods, so
the existing APIs won’t be removed and some of them are just to be deprecated.

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