Chen He created HDFS-8673:
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Summary: HDFS reports file already exists if there is a file/dir
name end with ._COPYING_
Key: HDFS-8673
URL: https://issues.apache.org/jira/browse/HDFS-8673
Project: Hadoop HDFS
Issue Type: Bug
Affects Versions: 2.7.0
Reporter: Chen He
Assignee: Chen He
Because CLI is using CommandWithDestination.java which add "._COPYING_" to the
tail of file name when it does the copy. It will cause problem if there is a
file/dir already called *._COPYING_ on HDFS.
For file:
-bash-4.1$ hadoop fs -put 5M /user/occ/
-bash-4.1$ hadoop fs -mv /user/occ/5M /user/occ/5M._COPYING_
-bash-4.1$ hadoop fs -ls /user/occ/
Found 1 items
-rw-r--r-- 1 occ supergroup 5242880 2015-06-26 05:16 /user/occ/5M._COPYING_
-bash-4.1$ hadoop fs -put 128K /user/occ/5M
-bash-4.1$ hadoop fs -ls /user/occ/
Found 1 items
-rw-r--r-- 1 occ supergroup 131072 2015-06-26 05:19 /user/occ/5M
For dir:
-bash-4.1$ hadoop fs -mkdir /user/occ/5M._COPYING_
-bash-4.1$ hadoop fs -ls /user/occ/
Found 1 items
drwxr-xr-x - occ supergroup 0 2015-06-26 05:24 /user/occ/5M._COPYING_
-bash-4.1$ hadoop fs -put 128K /user/occ/5M
put: /user/occ/5M._COPYING_ already exists as a directory
-bash-4.1$ hadoop fs -ls /user/occ/
(/user/occ/5M._COPYING_ is gone)
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