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From "Suresh Srinivas (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-8139) Path does not allow metachars to be escaped
Date Thu, 08 Mar 2012 22:27:58 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-8139?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13225606#comment-13225606
] 

Suresh Srinivas commented on HADOOP-8139:
-----------------------------------------

bq. ... this introduces regressions on Windows

Doug, not sure what you mean by this. Hadoop can still use through java File Windows right?
All we are changing is, the file paths to/through Hadoop now are based on forward slash.
                
> Path does not allow metachars to be escaped
> -------------------------------------------
>
>                 Key: HADOOP-8139
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8139
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: fs
>    Affects Versions: 0.23.0, 0.24.0
>            Reporter: Daryn Sharp
>            Assignee: Daryn Sharp
>            Priority: Blocker
>         Attachments: HADOOP-8139-2.patch, HADOOP-8139.patch, HADOOP-8139.patch
>
>
> Path converts "\" into "/", probably for windows support?  This means it's impossible
for the user to escape metachars in a path name.  Glob expansion can have deadly results.
> Here are the most egregious examples. A user accidentally creates a path like "/user/me/*/file".
 Now they want to remove it.
> {noformat}"hadoop fs -rmr -skipTrash '/user/me/\*'" becomes...
> "hadoop fs -rmr -skipTrash /user/me/*"{noformat}
> * User/Admin: Nuked their home directory or any given directory
> {noformat}"hadoop fs -rmr -skipTrash '\*'" becomes...
> "hadoop fs -rmr -skipTrash /*"{noformat}
> * User:  Deleted _everything_ they have access to on the cluster
> * Admin: *Nukes the entire cluster*
> Note: FsShell is shown for illustrative purposes, however the problem is in the Path
object, not FsShell.

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