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From "Akira AJISAKA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-5608) Replace and deprecate mapred.tasktracker.indexcache.mb
Date Thu, 07 Nov 2013 02:12:17 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-5608?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13815557#comment-13815557
] 

Akira AJISAKA commented on MAPREDUCE-5608:
------------------------------------------

Attaching a patch to deprecate mapreduce.tasktracker.indexcache.mb and replace this with "mapreduce.reduce.shuffle.indexcache.mb".
I think it is better the parameter includes 'reduce' because all other shuffle parameter include
'reduce'.

> Replace and deprecate mapred.tasktracker.indexcache.mb
> ------------------------------------------------------
>
>                 Key: MAPREDUCE-5608
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5608
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>    Affects Versions: 2.2.0
>            Reporter: Sandy Ryza
>            Assignee: Akira AJISAKA
>              Labels: newbie
>         Attachments: MAPREDUCE-5608.patch
>
>
> In MR2 mapred.tasktracker.indexcache.mb still works for configuring the size of the shuffle
service index cache.  As the tasktracker no longer exists, we should replace this with something
like mapreduce.shuffle.indexcache.mb. 



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