--Disk space reserved for non HDFS - hdfs-site.xml
dfs.datanode.du.reserved
--HDFS Balancer
sudo -su hdfs
hdfs balancer
hdfs balancer -threshold 5
--Creating user directories
sudo -u hdfs hadoop fs -mkdir /user/deepak.dubey
sudo -u hdfs hadoop fs -chown deepak.dubey:deepak.dubey /user/deepak.dubey
--Disk Usage
hadoop fs -du /user
hadoop fs -du -h /user
hadoop fs -du -h -s /user
