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https://issues.apache.org/jira/browse/HADOOP-9797?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13808656#comment-13808656
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Kai Zheng commented on HADOOP-9797:
-----------------------------------
Hi Larry,
Thanks for taking care of this. You're right you found a coding error in
getJaasLoginConfiguration(). The code was obsolete when introduced
HadoopLoginFactory, and I should have removed the dead code. Thanks anyway.
Sure to simply add the TokenAuthn method, we don't have to need this, as can be
seen in HADOOP-9804. I'm probably running this for the long term trying various
possible enhancements with incremental patches.
> 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
> Labels: Rhino
> Fix For: 3.0.0
>
> Attachments: HADOOP-9797-v1.patch, HADOOP-9797-v2.patch,
> HADOOP-9797-v3.patch, Pluggable and Compatible UGI Change.pdf
>
>
> 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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