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From "Ramkumar Vadali (JIRA)" <j...@apache.org>
Subject [jira] Created: (MAPREDUCE-2303) RAID BlockFixer should choose targets better
Date Fri, 04 Feb 2011 19:00:31 GMT
RAID BlockFixer should choose targets better
--------------------------------------------

                 Key: MAPREDUCE-2303
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2303
             Project: Hadoop Map/Reduce
          Issue Type: Improvement
          Components: contrib/raid
            Reporter: Ramkumar Vadali
            Assignee: Ramkumar Vadali


The RAID BlockFixer chooses the destination of the generated block at random. It avoids nodes
that have a corrupt replica of the block, but does not do anything beyond that. It needs to
avoid data nodes that have a replica of any source or parity block in the block's stripe.

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