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From "dhruba borthakur (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-1665) DFS Trash feature bugs
Date Fri, 03 Aug 2007 00:17:53 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-1665?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

dhruba borthakur updated HADOOP-1665:
-------------------------------------

    Attachment: Trash.patch

If the file already exists in Trash, then append an integer to the filename in the Trash directory.
The newer versions of the file in Trash will be of the form path.0, path.1, path.2, etc.



> DFS Trash feature bugs
> ----------------------
>
>                 Key: HADOOP-1665
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1665
>             Project: Hadoop
>          Issue Type: Bug
>          Components: dfs
>    Affects Versions: 0.13.1
>            Reporter: Nigel Daley
>            Assignee: Doug Cutting
>            Priority: Blocker
>             Fix For: 0.14.0
>
>         Attachments: Trash.patch
>
>
> In testing the DFS Trash feature, I've run across a couple of bugs.
> 1) Attempting to remove the same file fails when attempted within the same fs.trash.interval:
>     % bin/hadoop dfs -put file /file
>     % bin/hadoop dfs -rm /file
>     Moved to trash: /file
>     % bin/hadoop dfs -put file /file
>     % bin/hadoop dfs -rm /file
>     rm: Failed to move to trash: /file
> 2) Removing a file within a directory, followed by removing the directory creates a bizzare
hierarchy within /Trash:
>     % bin/hadoop dfs -mkdir /dir
>     % bin/hadoop dfs -put file /dir/file
>     % bin/hadoop dfs -rm /dir/file
>     Moved to trash: /dir/file
>     % bin/hadoop dfs -rmr /dir
>     Moved to trash: /dir
>     % bin/hadoop dfs -lsr /Trash
>     /Trash/Current  <dir>
>     /Trash/Current/dir      <dir>
>     /Trash/Current/dir/dir  <dir>     <-- This is weird; potentially related
to a rename case not fixed by HADOOP-1623 ???
>     /Trash/Current/dir/file <r 3>   10

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