| Package | Description | 
|---|---|
| org.apache.hadoop.yarn.server.resourcemanager.reservation | 
| Modifier and Type | Interface and Description | 
|---|---|
| interface  | PlanA Plan represents the central data structure of a reservation system that
 maintains the "agenda" for the cluster. | 
| interface  | PlanEditThis interface groups the methods used to modify the state of a Plan. | 
| (package private) interface  | org.apache.hadoop.yarn.server.resourcemanager.reservation.PlanViewThis interface provides a read-only view on the allocations made in this
 plan. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | InMemoryPlanThis class represents an in memory representation of the state of our
 reservation system, and provides accelerated access to both individual
 reservations and aggregate utilization of resources over time. | 
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