[HADOOP-9851] dfs -chown does not like "+" plus sign in user name

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.0.5-alpha
• Fix Version/s: 3.4.0
• Component/s: fs
• Target Version/s: 3.4.0
• Hadoop Flags: Reviewed
• Assignee: Andras Bokor
• Reporter: Marc Villacorta
• Created: 08/Aug/13 14:55
• Updated: 17/Jun/20 08:50
• Resolved: 17/Jun/20 08:34

Description

I intend to set user and group:

User: MYCOMPANY+marc.villacorta
Group: hadoop

where '+' is what we use as a winbind separator.

And this is what I get:

sudo -u hdfs hadoop fs -touchz /tmp/test.txt
sudo -u hdfs hadoop fs -chown MYCOMPANY+marc.villacorta:hadoop /tmp/test.txt
-chown: 'MYCOMPANY+marc.villacorta:hadoop' does not match expected pattern for [owner][:group].
Usage: hadoop fs [generic options] -chown [-R] [OWNER][:[GROUP]] PATH...

I am using version: 2.0.0-cdh4.3.0

Quote source:

winbind separator
The winbind separator option allows you to specify how NT domain names
and user names are combined into unix user names when presented to
users. By default, winbindd will use the traditional '\' separator so
that the unix user names look like DOMAIN\username. In some cases this
separator character may cause problems as the '\' character has
special meaning in unix shells. In that case you can use the winbind
separator option to specify an alternative separator character. Good
alternatives may be '/' (although that conflicts with the unix
directory separator) or a '+ 'character. The '+' character appears to
be the best choice for 100% compatibility with existing unix
utilities, but may be an aesthetically bad choice depending on your
taste.

Default: winbind separator = \

Example: winbind separator = +

Issue Links

• is related to: HADOOP-3098 dfs -chown does not like "_" underscore in user name
• is related to: HADOOP-9768 chown and chgrp reject users and groups with spaces on platforms where spaces are otherwise acceptable
• is related to: HADOOP-9778 Support configurable user name and group name validation patterns in chown and chgrp shell commands.