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https://issues.apache.org/jira/browse/HDFS-2792?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13186729#comment-13186729
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Aaron T. Myers commented on HDFS-2792:
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It's not entirely clear to me what the appropriate behavior is here. Should 
`fsck' perform some sort of HTTP client failover? Should an admin be able to 
run `fsck' against the standby NN, to make sure it's in ship-shape?
                
> HA: Make fsck work
> ------------------
>
>                 Key: HDFS-2792
>                 URL: https://issues.apache.org/jira/browse/HDFS-2792
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: ha, name-node
>    Affects Versions: HA branch (HDFS-1623)
>            Reporter: Aaron T. Myers
>            Assignee: Aaron T. Myers
>
> Currently `hadoop fsck' works, if one specifies an FS explicitly using the 
> generic option "-fs". It will fail with an op-category check if one specifies 
> the address of the standby NN. It will fail if one does not specify an FS.

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