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From "Daryn Sharp (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-3825) Need generalized multi-token filesystem support
Date Wed, 08 Feb 2012 17:10:59 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-3825?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13203751#comment-13203751
] 

Daryn Sharp commented on MAPREDUCE-3825:
----------------------------------------

(build failed because it relies on HADOOP-7967)
                
> Need generalized multi-token filesystem support
> -----------------------------------------------
>
>                 Key: MAPREDUCE-3825
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3825
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: security
>    Affects Versions: 0.23.1, 0.24.0
>            Reporter: Daryn Sharp
>            Assignee: Daryn Sharp
>         Attachments: MAPREDUCE-3825.patch
>
>
> This is the counterpart to HADOOP-7967.  The token cache currently tries to assume a
filesystem's token service key.  The assumption generally worked while there was a one to
one mapping of filesystem to token.  With the advent of multi-token filesystems like viewfs,
the token cache will try to use a service key (ie. for viewfs) that will never exist (because
it really gets the mounted fs tokens).

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