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

Class DefaultQueueResourceRoundingStrategy

java.lang.Object

org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.DefaultQueueResourceRoundingStrategy

All Implemented Interfaces:

QueueResourceRoundingStrategy

public class DefaultQueueResourceRoundingStrategy
extends java.lang.Object
implements QueueResourceRoundingStrategy

The default rounding strategy for resource calculation. Uses floor for all types except WEIGHT, which is always the last type to consider, therefore it is safe to round up.

Constructor Summary

Constructors

Constructor	Description
DefaultQueueResourceRoundingStrategy(QueueCapacityVector.ResourceUnitCapacityType[] capacityTypePrecedence)

Method Summary

Modifier and Type	Method	Description
double	getRoundedResource(double resourceValue, QueueCapacityVector.QueueCapacityVectorEntry capacityVectorEntry)	Returns a whole number converted from the calculated resource value.

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultQueueResourceRoundingStrategy

public DefaultQueueResourceRoundingStrategy(QueueCapacityVector.ResourceUnitCapacityType[] capacityTypePrecedence)

Method Detail

getRoundedResource

public double getRoundedResource(double resourceValue,
                                 QueueCapacityVector.QueueCapacityVectorEntry capacityVectorEntry)

Description copied from interface: QueueResourceRoundingStrategy

Returns a whole number converted from the calculated resource value.

Specified by:

getRoundedResource in interface QueueResourceRoundingStrategy

Parameters:

resourceValue - calculated resource value

capacityVectorEntry - configured capacity entry

Returns:

rounded resource value