[jira] [Created] (HADOOP-9767) RawLocalFileSystem#rename does not correctly enforce replacement of empty destination directory on all platforms

["Chris Nauroth (JIRA)" <ji...@apache.org>]

Chris Nauroth created HADOOP-9767:
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             Summary: RawLocalFileSystem#rename does not correctly enforce replacement of empty destination directory on all platforms
                 Key: HADOOP-9767
                 URL: https://issues.apache.org/jira/browse/HADOOP-9767
             Project: Hadoop Common
          Issue Type: Bug
          Components: fs
    Affects Versions: 3.0.0, 1-win, 2.1.0-beta, 1.3.0
            Reporter: Chris Nauroth
            Assignee: Chris Nauroth


POSIX {{rename}} semantics state that renaming a source directory to an existing destination directory that is empty will act as a full replacement of that existing destination.  {{RawLocalFileSystem#rename}} calls Java's {{File#renameTo}}, which provides these semantics on most platforms.  On some platforms (notably Windows), {{File#renameTo}} does not provide this behavior.  This causes problems for MapReduce and other downstream components like Hive, HCatalog, and Sqoop that depend on the replacement behavior.

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