Package org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy

Interface Summary

Interface	Description
OrderingPolicy<S extends SchedulableEntity>	OrderingPolicy is used by the scheduler to order SchedulableEntities for container assignment and preemption
SchedulableEntity	A SchedulableEntity is a process to be scheduled.

Class Summary

Class	Description
AbstractComparatorOrderingPolicy<S extends SchedulableEntity>	An OrderingPolicy which can serve as a baseclass for policies which can be expressed in terms of comparators
FairOrderingPolicy<S extends SchedulableEntity>	An OrderingPolicy which orders SchedulableEntities for fairness (see FairScheduler FairSharePolicy), generally, processes with lesser usage are lesser.
FifoComparator	A Comparator which orders SchedulableEntities by input order
FifoOrderingPolicy<S extends SchedulableEntity>	An OrderingPolicy which orders SchedulableEntities by input order
FifoOrderingPolicyForPendingApps<S extends SchedulableEntity>	This ordering policy is used for pending applications only.
PriorityComparator	A Comparator which orders SchedulableEntities by priority.
RecoveryComparator	A Comparator which orders SchedulableEntities by isRecovering flag.