RAID BlockFixer should choose targets better
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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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