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From "Aaron T. Myers (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-4177) Add a snapshot parameter to INodeDirectory.getChildrenList()
Date Wed, 14 Nov 2012 01:20:12 GMT

    [ https://issues.apache.org/jira/browse/HDFS-4177?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13496732#comment-13496732

Aaron T. Myers commented on HDFS-4177:

Hey Nicholas, did you consider using Guava's ImmutableList class instead of introducing our
own ReadOnlyList? It seems to me they provide identical functionality, and we already use
ImmutableList from Guava elsewhere in the Hadoop code.
> Add a snapshot parameter to INodeDirectory.getChildrenList()
> ------------------------------------------------------------
>                 Key: HDFS-4177
>                 URL: https://issues.apache.org/jira/browse/HDFS-4177
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: name-node
>            Reporter: Tsz Wo (Nicholas), SZE
>            Assignee: Tsz Wo (Nicholas), SZE
>             Fix For: Snapshot (HDFS-2802)
>         Attachments: h4177_20121112b.patch, h4177_20121112.patch
> With the snapshot features, the children list of directories can be different in snapshots
and the current view.  The snapshot information is required to select the children list.

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