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From "Tsz Wo (Nicholas), SZE (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-4520) Support listing snapshots under a snapshottable directory using "ls"
Date Sun, 24 Feb 2013 00:04:12 GMT

    [ https://issues.apache.org/jira/browse/HDFS-4520?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13585232#comment-13585232

Tsz Wo (Nicholas), SZE commented on HDFS-4520:

- Use substring instead of split.  Otherwise "/my.photo.snapshots/foo/.snapshot" will be spit
unexpectedly.  You may want to add a test case for such paths.

- Use the three-parameter createFileStatus.

- Search snapshots directly by "ReadOnlyList.Util.binarySearch(snapshots, startAfter)" and
keep INodeDirectorySnapshottable.searchSnapshot private.

- TestSnapshotListing needs license header.
> Support listing snapshots under a snapshottable directory using "ls"
> --------------------------------------------------------------------
>                 Key: HDFS-4520
>                 URL: https://issues.apache.org/jira/browse/HDFS-4520
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: datanode, namenode
>            Reporter: Jing Zhao
>            Assignee: Jing Zhao
>         Attachments: HDFS-4520.000.patch, HDFS-4520.001.patch
> Before developing a specific command/tool for listing snapshots with different criteria,
we can first support snapshot listing using normal ls command. Users can list all the snapshots
under a snapshottable directory using "ls /snapshottable_dir_path/.snapshot".

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