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From "Matt Foley (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-4511) Add IFile readahead
Date Mon, 01 Oct 2012 03:18:10 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-4511?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13466618#comment-13466618
] 

Matt Foley commented on MAPREDUCE-4511:
---------------------------------------

In branch-1.1, committed 2-line change to this patch, r1392179, to avoid use of interface
HasFileDescriptor, which doesn't exist until 1.2.0.
                
> Add IFile readahead
> -------------------
>
>                 Key: MAPREDUCE-4511
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4511
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: mrv1, mrv2, performance
>            Reporter: Ahmed Radwan
>            Assignee: Ahmed Radwan
>             Fix For: 1.1.0, 2.0.2-alpha
>
>         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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