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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: trash2.patch
Here's a new version that removes things if they're already in the trash.
> 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, trash2.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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