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From "Yiqun Lin (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-11848) Enhance dfsadmin listOpenFiles command to list files under a given path
Date Wed, 03 Jan 2018 11:33:00 GMT

     [ https://issues.apache.org/jira/browse/HDFS-11848?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Yiqun Lin updated HDFS-11848:
-----------------------------
    Attachment:     (was: HDFS-11848.002.patch)

> Enhance dfsadmin listOpenFiles command to list files under a given path
> -----------------------------------------------------------------------
>
>                 Key: HDFS-11848
>                 URL: https://issues.apache.org/jira/browse/HDFS-11848
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>    Affects Versions: 3.0.0-alpha1
>            Reporter: Manoj Govindassamy
>            Assignee: Yiqun Lin
>         Attachments: HDFS-11848.001.patch
>
>
> HDFS-10480 adds {{listOpenFiles}} option is to {{dfsadmin}} command to list all the open
files in the system.
> One more thing that would be nice here is to filter the output on a passed path or DataNode.
Usecases: An admin might already know a stale file by path (perhaps from fsck's -openforwrite),
and wants to figure out who the lease holder is. Proposal here is add suboptions to {{listOpenFiles}}
to list files filtered by path.
> {{LeaseManager#getINodeWithLeases(INodeDirectory)}} can be used to get the open file
list for any given ancestor directory.



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