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https://issues.apache.org/jira/browse/HADOOP-4763?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12652887#action_12652887
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Konstantin Shvachko commented on HADOOP-4763:
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Is it similar to the discussion in HADOOP-4761?
> Support manually fsck in DataNode
> ---------------------------------
>
> Key: HADOOP-4763
> URL: https://issues.apache.org/jira/browse/HADOOP-4763
> Project: Hadoop Core
> Issue Type: Improvement
> Components: dfs
> Reporter: Lei Xu
>
> Now DataNode only support scan all blocks periodically. Our site need a tool
> to check some blocks and files manually.
> My current design is to add a parameter to DFSck to indicate deeply and
> manually fsck request, then let NameNode collect property block identifies
> and sent them to associated DataNode.
> I'll let DataBlockScanner runs in two ways: periodically ( original one ) and
> manually.
> Any suggestions on this are welcome.
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