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From "Tsz Wo (Nicholas), SZE (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HDFS-4749) Use INodeId to identify the corresponding directory node for FSImage saving/loading
Date Thu, 25 Apr 2013 18:52:16 GMT

     [ https://issues.apache.org/jira/browse/HDFS-4749?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Tsz Wo (Nicholas), SZE resolved HDFS-4749.
------------------------------------------

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

I have committed this.  Thanks, Jing!
                
> Use INodeId to identify the corresponding directory node for FSImage saving/loading
> -----------------------------------------------------------------------------------
>
>                 Key: HDFS-4749
>                 URL: https://issues.apache.org/jira/browse/HDFS-4749
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: namenode
>            Reporter: Jing Zhao
>            Assignee: Jing Zhao
>             Fix For: Snapshot (HDFS-2802)
>
>         Attachments: HDFS-4749.000.patch
>
>
> Currently in fsimage, we use the path to locate a directory node for later loading, i.e.,
when loading a subtree from fsimage, we first read the path of the directory node, and resolve
the path to identify the directory node. This brings extra complexity since we need to generate
path for directory nodes in both the current tree and snapshot copies.
> As a simplification, we can use INodeId to identify the directory node.

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