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https://issues.apache.org/jira/browse/HDFS-17475?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17838082#comment-17838082
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Ayush Saxena commented on HDFS-17475:
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I am not sure this is something required, We have Fsck which does a lot of
stuff, & as I see there is no production utility of this & is just for
debugging purpose. So, I think Fsck or for debug you can just get the file
only...
> Add a command to check if files are readable
> --------------------------------------------
>
> Key: HDFS-17475
> URL: https://issues.apache.org/jira/browse/HDFS-17475
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: hdfs
> Reporter: Felix N
> Assignee: Felix N
> Priority: Minor
> Labels: pull-request-available
> Fix For: 3.5.0
>
>
> Sometimes a job can fail due to one unreadable file down the line due to
> missing replicas or dead DNs or other reason. This command should allow users
> to check whether files are readable by checking for metadata on DNs without
> executing full read pipelines of the files.
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