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https://issues.apache.org/jira/browse/HDFS-11848?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16015350#comment-16015350
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Manoj Govindassamy commented on HDFS-11848:
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[~linyiqun], filed this jira to track the enhancements as discussed in
HDFS-10480. Please feel free to pick this up and we might want to wait till
HDFS-10480 is committed for the infrastructure to be available.
> 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: Manoj Govindassamy
>
> 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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