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From "Lars Hofhansl (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-233) Support for snapshots
Date Sun, 08 Jan 2012 23:52:39 GMT

    [ https://issues.apache.org/jira/browse/HDFS-233?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13182328#comment-13182328
] 

Lars Hofhansl commented on HDFS-233:
------------------------------------

For what's it worth... Here's another vote for read-only snapshots.
We're planning a big deploy of HBase, and this would be a *very* helpful feature for consistent
filesystem level backups.

                
> Support for snapshots
> ---------------------
>
>                 Key: HDFS-233
>                 URL: https://issues.apache.org/jira/browse/HDFS-233
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>            Reporter: dhruba borthakur
>            Assignee: dhruba borthakur
>         Attachments: Snapshots.pdf, Snapshots.pdf
>
>
> Support HDFS snapshots. It should support creating snapshots without shutting down the
file system. Snapshot creation should be lightweight and a typical system should be able to
support a few thousands concurrent snapshots. There should be a way to surface (i.e. mount)
a few of these snapshots simultaneously.

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