[jira] [Created] (HADOOP-8139) Path does not allow metachars to be escaped

["Daryn Sharp (Created) (JIRA)" <ji...@apache.org>]

Path does not allow metachars to be escaped
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                 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
            Priority: Blocker


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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