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From "Manoj Govindassamy (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-11848) Enhance dfsadmin listOpenFiles command to list files under a given path
Date Thu, 18 May 2017 07:33:04 GMT
Manoj Govindassamy created HDFS-11848:
-----------------------------------------

             Summary: 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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