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https://issues.apache.org/jira/browse/HDFS-9016?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15325062#comment-15325062
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Lei (Eddy) Xu commented on HDFS-9016:
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IMO, when the user does not use new/additional flags, the output is the
exactly same as previous result, then the patch is backward-compatible.
Otherwise, it would be difficult to add any feature to branch-2.
My 2 cents. Thanks.
> Display upgrade domain information in fsck
> ------------------------------------------
>
> Key: HDFS-9016
> URL: https://issues.apache.org/jira/browse/HDFS-9016
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Ming Ma
> Assignee: Ming Ma
> Attachments: HDFS-9016.patch
>
>
> This will make it easy for people to use fsck to check block placement when
> upgrade domain is enabled.
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