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From "Steve Loughran (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-13627) Have an explicit KerberosAuthException for UGI to throw, text from public constants
Date Tue, 20 Sep 2016 15:30:20 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-13627?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15506891#comment-15506891

Steve Loughran commented on HADOOP-13627:

see also HADOOP-12834; Credentials could benefit there. 

> Have an explicit KerberosAuthException for UGI to throw, text from public constants
> -----------------------------------------------------------------------------------
>                 Key: HADOOP-13627
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13627
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: security
>    Affects Versions: 2.7.3
>            Reporter: Steve Loughran
>            Assignee: Xiao Chen
> UGI creates simple IOEs on failure, making it impossible to catch them, ignore them,
have smart retry logic around them, etc.
> # Have an explicit exception like {{KerberosAuthException extends IOException}} to raise
instead. We can't use {{AuthenticationException}} as that doesn't extend IOE.
> # move {{UGI}}, {{SecurityUtil}} and things related off simple IOEs and into the new
> # review exceptions raised and consider if they can provide more information
> # for the strings that get created, put them as public static constants, so that tests
can look for them explicitly —tests that don't break if the text is changed.
> # maybe, {{getUGIFromTicketCache}} to throw this rather than an RTE if no login principals
were found (it throws IOEs on login failures, after all)
> # keep KDiag in sync with this

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