Package org.apache.hadoop.yarn.server.resourcemanager.reservation

Interface Summary

Interface	Description
Plan	A Plan represents the central data structure of a reservation system that maintains the "agenda" for the cluster.
PlanContext	This interface provides read-only access to configuration-type parameter for a plan.
PlanEdit	This interface groups the methods used to modify the state of a Plan.
PlanFollower	A PlanFollower is a component that runs on a timer, and synchronizes the underlying ResourceScheduler with the Plan(s) and viceversa.
Planner
PlanView	This interface provides a read-only view on the allocations made in this plan.
ReservationAgent	An entity that seeks to acquire resources to satisfy an user's contract
ReservationAllocation	A ReservationAllocation represents a concrete allocation of resources over time that satisfy a certain ReservationDefinition.
ReservationConstants
ReservationSystem	This interface is the one implemented by any system that wants to support Reservations i.e.
SharingPolicy	This is the interface for policy that validate new ReservationAllocations for allocations being added to a Plan.

Class Summary

Class	Description
AbstractReservationSystem	This is the implementation of ReservationSystem based on the ResourceScheduler
AbstractSchedulerPlanFollower
CapacityOverTimePolicy	This policy enforces a time-extended notion of Capacity.
CapacityReservationSystem	This is the implementation of ReservationSystem based on the CapacityScheduler
CapacitySchedulerPlanFollower	This class implements a PlanFollower.
FairReservationSystem
FairSchedulerPlanFollower
GreedyReservationAgent	This Agent employs a simple greedy placement strategy, placing the various stages of a ReservationRequest from the deadline moving backward towards the arrival.
NoOverCommitPolicy	This policy enforce a simple physical cluster capacity constraints, by validating that the allocation proposed fits in the current plan.
ReservationInputValidator
ReservationInterval	This represents the time duration of the reservation
ReservationSchedulerConfiguration
RLESparseResourceAllocation	This is a run length encoded sparse data structure that maintains resource allocations over time
SimpleCapacityReplanner	This (re)planner scan a period of time from now to a maximum time window (or the end of the last session, whichever comes first) checking the overall capacity is not violated.