Julien Le Dem created HADOOP-8842:
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Summary: local file system behavior of mv into an empty directory
is inconsistent with HDFS
Key: HADOOP-8842
URL: https://issues.apache.org/jira/browse/HADOOP-8842
Project: Hadoop Common
Issue Type: Bug
Affects Versions: 0.20.2
Reporter: Julien Le Dem
moving into an empty directory replaces the directory instead.
See output of attached script to reproduce :
>>> HDFS: normal behavior
content of a: 1 part
Found 1 items
-rw-r--r-- 3 julien g 0 2012-09-25 17:16
/user/julien/local_fs_bug/a/part-0000
content of b/c: empty
mv a b/c
resulting content of b/c
Found 1 items
drwxr-xr-x - julien g 0 2012-09-25 17:16
/user/julien/local_fs_bug/b/c/a
a is moved inside of c
>>> local fs: bug
content of a: 1 part
12/09/25 17:16:34 WARN fs.FileSystem: "local" is a deprecated filesystem name.
Use "file:///" instead.
Found 1 items
-rw-r--r-- 1 julien g 0 2012-09-25 17:16
/home/julien/local_fs_bug/a/part-0000
content of b/c: empty
12/09/25 17:16:34 WARN fs.FileSystem: "local" is a deprecated filesystem name.
Use "file:///" instead.
mv a b/c
12/09/25 17:16:35 WARN fs.FileSystem: "local" is a deprecated filesystem name.
Use "file:///" instead.
resulting content of b/c
12/09/25 17:16:35 WARN fs.FileSystem: "local" is a deprecated filesystem name.
Use "file:///" instead.
Found 1 items
-rw-r--r-- 1 julien g 0 2012-09-25 17:16
/home/julien/local_fs_bug/b/c/part-0000
bug: a replaces c
>>> but it works if the destination is not empty
content of a2: 1 part
12/09/25 17:16:36 WARN fs.FileSystem: "local" is a deprecated filesystem name.
Use "file:///" instead.
Found 1 items
-rw-r--r-- 1 julien g 0 2012-09-25 17:16
/home/julien/local_fs_bug/a2/part-0000
content of b2/c2: 1 dummy file
12/09/25 17:16:37 WARN fs.FileSystem: "local" is a deprecated filesystem name.
Use "file:///" instead.
Found 1 items
-rw-r--r-- 1 julien g 0 2012-09-25 17:16
/home/julien/local_fs_bug/b2/c2/dummy
mv a2 b2/c2
12/09/25 17:16:37 WARN fs.FileSystem: "local" is a deprecated filesystem name.
Use "file:///" instead.
resulting content of b/c
12/09/25 17:16:38 WARN fs.FileSystem: "local" is a deprecated filesystem name.
Use "file:///" instead.
Found 2 items
drwxr-xr-x - julien g 4096 2012-09-25 17:16
/home/julien/local_fs_bug/b2/c2/a2
-rw-r--r-- 1 julien g 0 2012-09-25 17:16
/home/julien/local_fs_bug/b2/c2/dummy
a2 is moved inside of c2
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