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From "Tsz Wo (Nicholas), SZE (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HDFS-4612) Not to use INode.getParent() when generating snapshot diff report
Date Mon, 25 Mar 2013 10:23:16 GMT

     [ https://issues.apache.org/jira/browse/HDFS-4612?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Tsz Wo (Nicholas), SZE resolved HDFS-4612.
------------------------------------------

       Resolution: Fixed
    Fix Version/s: Snapshot (HDFS-2802)

I have committed this.  Thanks, Jing!
                
> Not to use INode.getParent() when generating snapshot diff report
> -----------------------------------------------------------------
>
>                 Key: HDFS-4612
>                 URL: https://issues.apache.org/jira/browse/HDFS-4612
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: namenode
>            Reporter: Tsz Wo (Nicholas), SZE
>            Assignee: Jing Zhao
>             Fix For: Snapshot (HDFS-2802)
>
>         Attachments: HDFS-4612.001.patch
>
>
> With rename, an inode may have multiple access paths, i.e. multiple parents.  In such
case, INode.getParent() returns the parent in the current state but not the parents in the
snapshots.  Therefore, we cannot use INode.getParent() to generate snapshot diff report.

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