[HADOOP-14075] chown doesn't work with usernames containing '\' character

• Type: Sub-task
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 2.6.0
• Target Version/s: 2.7.8
• Assignee: Attila Bukor
• Reporter: Attila Bukor
• Created: 10/Feb/17 20:54
• Updated: 02/Oct/19 17:13

Description

Usernames containing backslash (e.g. down-level logon names) seem to work fine with Hadoop, except for chown.

$ HADOOP_USER_NAME="FOOBAR\\testuser" hdfs dfs -mkdir /test/testfile1
$ hdfs dfs -ls /test
Found 1 items
drwxrwxr-x   - FOOBAR\testuser supergroup          0 2017-02-10 12:49 /test/testfile1
$ HADOOP_USER_NAME="testuser" hdfs dfs -mkdir /test/testfile2
$ HADOOP_USER_NAME="hdfs" hdfs dfs -chown "FOOBAR\\testuser" /test/testfile2
-chown: 'FOOBAR\testuser' does not match expected pattern for [owner][:group].
Usage: hadoop fs [generic options] -chown [-R] [OWNER][:[GROUP]] PATH...
$