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Posted to hdfs-dev@hadoop.apache.org by "Jing Zhao (JIRA)" <ji...@apache.org> on 2013/04/25 02:23:13 UTC

[jira] [Created] (HDFS-4749) Use INodeId to identify the corresponding directory node for FSImage saving/loading

Jing Zhao created HDFS-4749:
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             Summary: 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
            Reporter: Jing Zhao
            Assignee: Jing Zhao


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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