| Package | Description | 
|---|---|
| org.apache.hadoop.hdfs.server.diskbalancer.datamodel | Disk Balancer Data Model is the Data Model for the cluster that
 Disk Balancer is working against. | 
| org.apache.hadoop.hdfs.server.diskbalancer.planner | Planner takes a DiskBalancerVolumeSet, threshold and
 computes a series of steps that lead to an even data
 distribution between volumes of this DiskBalancerVolumeSet. | 
| Class and Description | 
|---|
| NodePlan NodePlan is a set of volumeSetPlans. | 
| Class and Description | 
|---|
| NodePlan NodePlan is a set of volumeSetPlans. | 
| Planner Planner interface allows different planners to be created. | 
| Step A step in the plan. | 
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