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https://issues.apache.org/jira/browse/HDFS-8849?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14652970#comment-14652970
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Allen Wittenauer commented on HDFS-8849:
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This is one of those times where I feel that no matter what I say, it's pretty
clear the dev is hell bent on putting in some useless feature that doesn't
actually benefit anyone.
That said, I'll also remind you that putting this into 2.x is a breaking change
by the compatibility requirements since changing the output of fsck isn't
allowed.
> fsck should report number of missing blocks with replication factor 1
> ---------------------------------------------------------------------
>
> Key: HDFS-8849
> URL: https://issues.apache.org/jira/browse/HDFS-8849
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: tools
> Affects Versions: 2.7.1
> Reporter: Zhe Zhang
> Assignee: Zhe Zhang
> Priority: Minor
>
> HDFS-7165 supports reporting number of blocks with replication factor 1 in
> {{dfsadmin}} and NN metrics. But it didn't extend {{fsck}} with the same
> support, which is the aim of this JIRA.
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