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https://issues.apache.org/jira/browse/HDFS-10480?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15983738#comment-15983738
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Rushabh S Shah commented on HDFS-10480:
---------------------------------------

bq. Just curious, what's the difference of this command with hdfs fsck / 
-openforwrite ?
The output will be the same. Just the time to reach that output is vastly 
different. :)
hdfs fsck / will crawl the whole filesystem.

> Add an admin command to list currently open files
> -------------------------------------------------
>
>                 Key: HDFS-10480
>                 URL: https://issues.apache.org/jira/browse/HDFS-10480
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: Kihwal Lee
>            Assignee: Rushabh S Shah
>         Attachments: HDFS-10480-trunk-1.patch, HDFS-10480-trunk.patch
>
>
> Currently there is no easy way to obtain the list of active leases or files 
> being written. It will be nice if we have an admin command to list open files 
> and their lease holders.



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