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From "Boris Shkolnik (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-1532) Delegation token is obtained as the superuser
Date Thu, 25 Feb 2010 23:42:27 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-1532?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12838609#action_12838609

Boris Shkolnik commented on MAPREDUCE-1532:

I've reviewed DelegationTokenRenewal related parts.
Changes to DelegationTokenRenewal.java look fine.
In TestDTR:
1. I don't think it is a good idea to sleep for 10 seconds every time. If you feel it can
take long then the currently specified time - increase the number of attempts, but not the
attempt span. So in the good case we don't slow tests too much.
2. the attempt thing is really needed only in the first part of the test. In the second part
we test negative case - it should never be renewed.
So one try or 3 seconds should suffice.


> Delegation token is obtained as the superuser
> ---------------------------------------------
>                 Key: MAPREDUCE-1532
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1532
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: job submission, security
>    Affects Versions: 0.22.0
>            Reporter: Devaraj Das
>            Assignee: Devaraj Das
>             Fix For: 0.22.0
>         Attachments: 1532-bp20.1.patch, 1532-bp20.2.patch
> When the UserGroupInformation.doAs is invoked for proxy users, the delegation token is
incorrectly obtained as the real user.

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