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https://issues.apache.org/jira/browse/HADOOP-4970?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12666369#action_12666369
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dhruba borthakur commented on HADOOP-4970:
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I am going to commit this to trunk only. I would not pull this into 0.19 or 
0.20 because it is kinda change in semantics. 

> Use the full path when move files to .Trash/Current
> ---------------------------------------------------
>
>                 Key: HADOOP-4970
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4970
>             Project: Hadoop Core
>          Issue Type: Improvement
>          Components: dfs
>    Affects Versions: 0.19.0
>            Reporter: Prasad Chakka
>            Assignee: Prasad Chakka
>         Attachments: hadoop-4970.patch
>
>
> When a directory or file is deleted using rm or rmr, the subtree is moved 
> directly to .Trash/Current. If there are two deleted objects with the same 
> name but with different original paths it is not feasible to undelete them 
> without storing additional information regarding the original paths. Instead 
> if the full path of the deleting object is used while moving (replicating the 
> complete path in .Trash/Current) it will be easier to undelete objects to its 
> original paths.

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