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https://issues.apache.org/jira/browse/HDFS-366?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14068838#comment-14068838
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Allen Wittenauer commented on HDFS-366:
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I wonder how this works in a post-security world.
> Support manually fsck in DataNode
> ---------------------------------
>
> Key: HDFS-366
> URL: https://issues.apache.org/jira/browse/HDFS-366
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Lei (Eddy) Xu
> Attachments: HADOOP-4763.patch, fsck.patch, fsck.patch
>
>
> 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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