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

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: 1-win, 2.1.0-beta, 1.3.0, 3.0.0-alpha1
• Component/s: fs
• Target Version/s: 1-win, 2.1.0-beta, 1.3.0
• Assignee: Chris Nauroth
• Reporter: Chris Nauroth
• Created: 24/Jul/13 19:49
• Updated: 12/May/16 18:23
• Resolved: 24/Jul/13 20:50

Description

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.

Issue Links

• duplicates: HADOOP-9507 LocalFileSystem rename() is broken in some cases when destination exists