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https://issues.apache.org/jira/browse/HADOOP-1855?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12534397
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Hairong Kuang commented on HADOOP-1855:
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In ReplicationTargetChooser.verifyBlockPlacement, minimun rack requirement per
block should be the minimun of the block's replicattion factor and 2.
> fsck should verify block placement
> ----------------------------------
>
> Key: HADOOP-1855
> URL: https://issues.apache.org/jira/browse/HADOOP-1855
> Project: Hadoop
> Issue Type: Improvement
> Components: dfs
> Affects Versions: 0.14.2
> Reporter: dhruba borthakur
> Assignee: Konstantin Shvachko
> Fix For: 0.16.0
>
> Attachments: FsckBlockPlacement.patch
>
>
> fsck currently detects missing and under-replicated blocks. It would be
> helpful if it can also detect blocks that do not conform to the block
> placement policy. An administrator can use this tool to verify that blocks
> are distributed across racks.
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