HDFS Files owner name has AD domain name

[#1]

Hi All,

Is there a way to only make AD username as the owner of HDFS files/directories instead of userName@domainName.

Current Scenario :

hdfs dfs -ls /testfile
-rw-r--r-- 3 dgiri@mytestdomain.com  hdfs         0 2017-06-30 10:06 /testfile

I want this to be like below.

hdfs dfs -ls /testfile
-rw-r--r-- 3 dgiri  hdfs         0 2017-06-30 10:06 /testfile

Please note that cluster is AD integrated and everything is working fine as expected except the files/directories ownership.

Also, I'm getting below INFO message whenever I run hdfs commands. Is there a way to stop displaying below message ?

17/09/19 12:50:13 INFO util.KerberosName: No auth_to_local rules applied to dgiri@mytestdomain.com

Any help is much appreciated.

Thanks.

[#2 · Accepted solution]

You will need to add auth_to_local rule in core-site.xml to map dgiri@mytestdomain.com to dgiri

RULE:[2:$1](.*@mytestdomain.com)s/@.*//

More defailt of how to write auth_to_local rules can be found here: https://hortonworks.com/blog/fine-tune-your-apache-hadoop-security-settings/

[#3]

Thanks @Xiaoyu Yao for the details and documentation link.