Run the Disk Balancer plan
For a DataNode, the HDFS Disk Balancer moves data according to the details specified in the JSON document generated as the Disk Balancer plan.
hdfs diskbalancer -executecommand by specifying the path to the JSON plan document.
hdfs diskbalancer -execute /system/diskbalancer/<Creation_Timestamp>/nodename.plan.json
The command reads the DataNode's address from the JSON file and executes the plan.