Package org.apache.hadoop.yarn.server.resourcemanager.monitor.capacity

Interface Summary

Interface	Description
CapacitySchedulerPreemptionContext	This interface provides context for the calculation of ideal allocation and preemption for the CapacityScheduler.

Class Summary

Class	Description
AbstractPreemptableResourceCalculator	Calculate how much resources need to be preempted for each queue, will be used by PreemptionCandidatesSelector.
AbstractPreemptionEntity	Abstract temporary data-structure for tracking resource availability,pending resource need, current utilization for app/queue.
CapacitySchedulerPreemptionUtils
FifoCandidatesSelector
FifoIntraQueuePreemptionPlugin	FifoIntraQueuePreemptionPlugin will handle intra-queue preemption for priority and user-limit.
IntraQueueCandidatesSelector	Identifies over utilized resources within a queue and tries to normalize them to resolve resource allocation anomalies w.r.t priority and user-limit.
PreemptableResourceCalculator	Calculate how much resources need to be preempted for each queue, will be used by PreemptionCandidatesSelector
PreemptionCandidatesSelector
ProportionalCapacityPreemptionPolicy	This class implement a SchedulingEditPolicy that is designed to be paired with the CapacityScheduler.
QueuePriorityContainerCandidateSelector
ReservedContainerCandidatesSelector
TempAppPerPartition	Temporary data-structure tracking resource availability, pending resource need, current utilization for an application.
TempQueuePerPartition	Temporary data-structure tracking resource availability, pending resource need, current utilization.
TempSchedulerNode	This class will save necessary information which copied from FiCaSchedulerNode.
TempUserPerPartition	Temporary data-structure tracking resource availability, pending resource need, current utilization for an application.

Enum Summary

Enum	Description
ProportionalCapacityPreemptionPolicy.IntraQueuePreemptionOrderPolicy	IntraQueuePreemptionOrder will be used to define various priority orders which could be configured by admin.