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From "Doug Cutting (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-432) support undelete, snapshots, or other mechanism to recover lost files
Date Thu, 01 Feb 2007 22:42:06 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-432?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Doug Cutting updated HADOOP-432:
--------------------------------

    Attachment: trash.patch

Here's a version of this feature.  The namenode has not yet been altered to automatically
empty the trash, however users can manually purge the trash of expired items from the command
line.  Comments?

> support undelete, snapshots, or other mechanism to recover lost files
> ---------------------------------------------------------------------
>
>                 Key: HADOOP-432
>                 URL: https://issues.apache.org/jira/browse/HADOOP-432
>             Project: Hadoop
>          Issue Type: Improvement
>          Components: dfs
>            Reporter: Yoram Arnon
>         Assigned To: Doug Cutting
>         Attachments: trash.patch, undelete12.patch, undelete16.patch, undelete17.patch
>
>
> currently, once you delete a file it's gone forever.
> most file systems allow some form of recovery of deleted files.
> a simple solution would be an 'undelete' command.
> a more comprehensive solution would include snapshots, manual and automatic, with scheduling
options.

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