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

Class FifoOrderingPolicy<S extends SchedulableEntity>

java.lang.Object

org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy.AbstractComparatorOrderingPolicy<S>

org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy.FifoOrderingPolicy<S>

All Implemented Interfaces:

OrderingPolicy<S>

public class FifoOrderingPolicy<S extends SchedulableEntity>
extends AbstractComparatorOrderingPolicy<S>

An OrderingPolicy which orders SchedulableEntities by input order

Field Summary

Fields inherited from class org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy.AbstractComparatorOrderingPolicy

comparator, entitiesToReorder, schedulableEntities

Constructor Summary

Constructors

Constructor and Description
FifoOrderingPolicy()

Method Summary

Modifier and Type	Method and Description
void	configure(Map<String,String> conf) Provides configuration information for the policy from the scheduler configuration
void	containerAllocated(S schedulableEntity, RMContainer r) The passed SchedulableEntity has been allocated the passed Container, take appropriate action (depending on comparator, a reordering of the SchedulableEntity may be required)
void	containerReleased(S schedulableEntity, RMContainer r) The passed SchedulableEntity has released the passed Container, take appropriate action (depending on comparator, a reordering of the SchedulableEntity may be required)
void	demandUpdated(S schedulableEntity) Demand Updated for the passed schedulableEntity, reorder if needed.
String	getInfo() Display information regarding configuration and status

Methods inherited from class org.apache.hadoop.yarn.server.resourcemanager.scheduler.policy.AbstractComparatorOrderingPolicy

addAllSchedulableEntities, addSchedulableEntity, entityRequiresReordering, getAssignmentIterator, getComparator, getNumSchedulableEntities, getPreemptionIterator, getSchedulableEntities, removeSchedulableEntity, reorderSchedulableEntity, reorderScheduleEntities, updateSchedulingResourceUsage

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

FifoOrderingPolicy

public FifoOrderingPolicy()

Method Detail

configure

public void configure(Map<String,String> conf)

Description copied from interface: OrderingPolicy

Provides configuration information for the policy from the scheduler configuration

Specified by:

configure in interface OrderingPolicy<S extends SchedulableEntity>

Specified by:

configure in class AbstractComparatorOrderingPolicy<S extends SchedulableEntity>

containerAllocated

public void containerAllocated(S schedulableEntity,
                               RMContainer r)

Description copied from interface: OrderingPolicy

The passed SchedulableEntity has been allocated the passed Container, take appropriate action (depending on comparator, a reordering of the SchedulableEntity may be required)

Specified by:

containerAllocated in interface OrderingPolicy<S extends SchedulableEntity>

Specified by:

containerAllocated in class AbstractComparatorOrderingPolicy<S extends SchedulableEntity>

containerReleased

public void containerReleased(S schedulableEntity,
                              RMContainer r)

Description copied from interface: OrderingPolicy

The passed SchedulableEntity has released the passed Container, take appropriate action (depending on comparator, a reordering of the SchedulableEntity may be required)

Specified by:

containerReleased in interface OrderingPolicy<S extends SchedulableEntity>

Specified by:

containerReleased in class AbstractComparatorOrderingPolicy<S extends SchedulableEntity>

demandUpdated

public void demandUpdated(S schedulableEntity)

Description copied from interface: OrderingPolicy

Demand Updated for the passed schedulableEntity, reorder if needed.

Specified by:

demandUpdated in interface OrderingPolicy<S extends SchedulableEntity>

Specified by:

demandUpdated in class AbstractComparatorOrderingPolicy<S extends SchedulableEntity>

getInfo

public String getInfo()

Description copied from interface: OrderingPolicy

Display information regarding configuration and status

Specified by:

getInfo in interface OrderingPolicy<S extends SchedulableEntity>

Specified by:

getInfo in class AbstractComparatorOrderingPolicy<S extends SchedulableEntity>