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From "Hadoop QA (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-3850) Avoid redundant calls for tokens in TokenCache
Date Fri, 10 Feb 2012 20:38:59 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-3850?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13205733#comment-13205733
] 

Hadoop QA commented on MAPREDUCE-3850:
--------------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12514148/MAPREDUCE-3850.patch
  against trunk revision .

    +1 @author.  The patch does not contain any @author tags.

    +1 tests included.  The patch appears to include 3 new or modified tests.

    +1 javadoc.  The javadoc tool did not generate any warning messages.

    +1 javac.  The applied patch does not increase the total number of javac compiler warnings.

    +1 eclipse:eclipse.  The patch built with eclipse:eclipse.

    +1 findbugs.  The patch does not introduce any new Findbugs (version 1.3.9) warnings.

    +1 release audit.  The applied patch does not increase the total number of release audit
warnings.

    -1 core tests.  The patch failed these unit tests:
                  org.apache.hadoop.yarn.util.TestLinuxResourceCalculatorPlugin

    +1 contrib tests.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/1838//testReport/
Console output: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/1838//console

This message is automatically generated.
                
> 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
>         Attachments: 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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