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From "Robert Joseph Evans (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-3850) Avoid redundant calls for tokens in TokenCache
Date Tue, 08 May 2012 15:29:51 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-3850?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Robert Joseph Evans updated MAPREDUCE-3850:
-------------------------------------------

          Resolution: Fixed
       Fix Version/s: 3.0.0
                      2.0.0
                      0.23.3
    Target Version/s: 0.23.3, 2.0.0, 3.0.0  (was: 3.0.0, 2.0.0, 0.23.3)
              Status: Resolved  (was: Patch Available)

Thanks Daryn,

+1 for the change.  Sorry it took so long to review this. I put it into trunk, branch-2, and
branch-0.23
                
> Avoid redundant calls for tokens in TokenCache
> ----------------------------------------------
>
>                 Key: MAPREDUCE-3850
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3850
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: security
>    Affects Versions: 0.23.1, 0.24.0
>            Reporter: Daryn Sharp
>            Assignee: Daryn Sharp
>             Fix For: 0.23.3, 2.0.0, 3.0.0
>
>         Attachments: MAPREDUCE-3850-1.patch, MAPREDUCE-3850.patch, MAPREDUCE-3850.patch
>
>
> The {{TokenCache}} will repeatedly call the same filesystem for tokens.  This is inefficient
and can easily be changed to only call each filesystem once.

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