User group
hdfs groups userName
hdfs dfs -ls /user | tail -n +2 | awk '{print $8}' | while read -r userName; do
hdfs groups -D "fs.default.name=hdfs://namenode/" ${userName#/user/}
done
where:
Output:
admin : admin users
admininformatica :
ambari-qa : hadoop users
ams : hadoop
hbase : hadoop
hcat : hadoop
hive : hadoop
livy : hadoop
oozie : hadoop users
root : root
spark : hadoop
sshuser : sshuser adm dialout cdrom floppy sudo audio dip video plugdev netdev lxd
zeppelin : zeppelin
See HDFS - Permissions (Authorization)
The default administrator group is hdfs.
hdfs getconf -confKey dfs.permissions.superusergroup
hdfs