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From "Wendy Chien (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-432) support undelete, snapshots, or other mechanism to recover lost files
Date Wed, 13 Dec 2006 00:41:23 GMT
    [ http://issues.apache.org/jira/browse/HADOOP-432?page=comments#action_12457970 ] 
            
Wendy Chien commented on HADOOP-432:
------------------------------------

Responding to Yoram...  (in the final design)
-trashSize is kept up to date
-when we run the trash collector, it removes all the files that have expired (older than mintime).
 otherwise trash would always be at the maxsize.
-the purge command allows the user to clear things from the trash bin. 


> support undelete, snapshots, or other mechanism to recover lost files
> ---------------------------------------------------------------------
>
>                 Key: HADOOP-432
>                 URL: http://issues.apache.org/jira/browse/HADOOP-432
>             Project: Hadoop
>          Issue Type: Improvement
>          Components: dfs
>            Reporter: Yoram Arnon
>         Assigned To: Wendy Chien
>         Attachments: 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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