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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-2142) Refactor RaidNode to remove dependence on map reduce
Date Mon, 08 Nov 2010 09:48:24 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-2142?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12929523#action_12929523
] 

Hudson commented on MAPREDUCE-2142:
-----------------------------------

Integrated in Hadoop-Mapreduce-trunk-Commit #531 (See [https://hudson.apache.org/hudson/job/Hadoop-Mapreduce-trunk-Commit/531/])
    MAPREDUCE-2142.  Refactor RaidNode so that the map-reduce component is
clearly separated out. (Patrick Kling via dhruba)


> Refactor RaidNode to remove dependence on map reduce
> ----------------------------------------------------
>
>                 Key: MAPREDUCE-2142
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2142
>             Project: Hadoop Map/Reduce
>          Issue Type: Task
>            Reporter: Patrick Kling
>            Assignee: Patrick Kling
>             Fix For: 0.22.0
>
>         Attachments: MAPREDUCE-2142.2.patch, MAPREDUCE-2142.3.patch, MAPREDUCE-2142.patch
>
>
> I am refactoring the RaidNode code as follows: The base class RaidNode will contain the
common functionality needed for raiding files. The derived class LocalRaidNode contains an
implementation of RaidNode that performs raiding locally. The derived class DistRaidNode performs
raiding using map reduce jobs. This way, only DistRaidNode has a dependency on map reduce
code and RaidNode and LocalRaidNode can be moved to HDFS.

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