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