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Date: Thu, 16 Aug 2012 10:06:38 +1100 (NCT)
From: "Ahmed Radwan (JIRA)" <jira@apache.org>
To: mapreduce-issues@hadoop.apache.org
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Subject: [jira] [Commented] (MAPREDUCE-4511) Add IFile readahead
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    [ https://issues.apache.org/jira/browse/MAPREDUCE-4511?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13435595#comment-13435595 ] 

Ahmed Radwan commented on MAPREDUCE-4511:
-----------------------------------------

Thanks Tucu, I see you point about keeping the JobConf properties compatible with MR2. I have updated the branch-1 patch to have these constants in the class itself.
                
> Add IFile readahead
> -------------------
>
>                 Key: MAPREDUCE-4511
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4511
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mrv1, mrv2, performance
>            Reporter: Ahmed Radwan
>            Assignee: Ahmed Radwan
>         Attachments: MAPREDUCE-4511_branch1.patch, MAPREDUCE-4511_branch-1_rev2.patch, MAPREDUCE-4511_branch-1_rev3.patch, MAPREDUCE-4511_branch-1_rev4.patch, MAPREDUCE-4511_branch-1_rev5.patch, MAPREDUCE-4511_branch-1_rev6.patch, MAPREDUCE-4511_branch-1_rev7.patch, MAPREDUCE-4511_trunk.patch, MAPREDUCE-4511_trunk_rev2.patch, MAPREDUCE-4511_trunk_rev3.patch, MAPREDUCE-4511_trunk_rev4.patch, MAPREDUCE-4511_trunk_rev5.patch, MAPREDUCE-4511_trunk_rev6.patch
>
>
> This ticket is to add IFile readahead as part of HADOOP-7714.

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