Hadoop - User
About
User in the context of Hadoop.
A user is the value returned from the authentication process.
Articles Related
Management
Creation with linux auth
Ie the user is the linux user starting the process
sudo useradd -m userName
sudo passwd userName
Create directories on hdfs for new user. See
HDFS - User
hadoop fs -mkdir /user/userName
hadoop fs -chmod 777 /user/userName
Documentation / Reference
Class:
org.apache.hadoop.security.UserGroupInformation
org.apache.hadoop.security.UserGroupInformation.getLoginUser
org.apache.hadoop.security.UserGroupInformation.getCurrentUser