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https://issues.apache.org/jira/browse/MAPREDUCE-2155?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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dhruba borthakur updated MAPREDUCE-2155:
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Resolution: Fixed
Hadoop Flags: [Reviewed]
Status: Resolved (was: Patch Available)
I just committed this. Thanks Patrick!
> RaidNode should optionally dispatch map reduce jobs to fix corrupt blocks
> (instead of fixing locally)
> -----------------------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-2155
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2155
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: contrib/raid
> Affects Versions: 0.23.0
> Reporter: Patrick Kling
> Assignee: Patrick Kling
> Fix For: 0.23.0
>
> Attachments: MAPREDUCE-2155.2.patch, MAPREDUCE-2155.patch
>
>
> Recomputing blocks based on parity information is expensive. Rather than
> doing this locally at the RaidNode, we should run map reduce jobs. This will
> allow us to quickly fix a large number of corrupt or missing blocks.
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