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https://issues.apache.org/jira/browse/HDFS-7278?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14180962#comment-14180962
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Suresh Srinivas commented on HDFS-7278:
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bq. I think it's a good tool to have in our toolbox to work around possible 
bugs in NN replica accounting.
Very interesting. I have not encountered such an issue. If you have details it 
would be good to share.

This command must be okay to add.

> Add a command that allows sysadmins to manually trigger full block reports 
> from a DN
> ------------------------------------------------------------------------------------
>
>                 Key: HDFS-7278
>                 URL: https://issues.apache.org/jira/browse/HDFS-7278
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: datanode
>    Affects Versions: 2.6.0
>            Reporter: Colin Patrick McCabe
>            Assignee: Colin Patrick McCabe
>         Attachments: HDFS-7278.002.patch
>
>
> We should add a command that allows sysadmins to manually trigger full block 
> reports from a DN.



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