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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-3850) Avoid redundant calls for tokens in TokenCache
Date Wed, 09 May 2012 14:03:49 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-3850?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13271424#comment-13271424
] 

Hudson commented on MAPREDUCE-3850:
-----------------------------------

Integrated in Hadoop-Mapreduce-trunk #1074 (See [https://builds.apache.org/job/Hadoop-Mapreduce-trunk/1074/])
    MAPREDUCE-3850. Avoid redundant calls for tokens in TokenCache (Daryn Sharp via bobby)
(Revision 1335585)

     Result = SUCCESS
bobby : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1335585
Files : 
* /hadoop/common/trunk/hadoop-mapreduce-project/CHANGES.txt
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/security/TokenCache.java
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/test/java/org/apache/hadoop/mapreduce/security/TestTokenCache.java

                
> 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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