Package org.apache.hadoop.yarn.api.records

Class EnhancedHeadroom

java.lang.Object

org.apache.hadoop.yarn.api.records.EnhancedHeadroom

public abstract class EnhancedHeadroom
extends Object

Enhanced head room in AllocateResponse. This provides a channel for RMs to return load information for AMRMProxy decision making when rerouting resource requests. Contains total pending container count and active cores for a cluster.

Constructor Summary

Constructors

Constructor	Description
EnhancedHeadroom()

Method Summary

Modifier and Type	Method	Description
double	getNormalizedPendingCount(long multiplier)
abstract int	getTotalActiveCores()	Get total active cores for the cluster.
abstract int	getTotalPendingCount()	Get total pending container count.
static EnhancedHeadroom	newInstance(int totalPendingCount, int totalActiveCores)
abstract void	setTotalActiveCores(int totalActiveCores)	Set total active cores for the cluster.
abstract void	setTotalPendingCount(int totalPendingCount)	Set total pending container count.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Details

EnhancedHeadroom

public EnhancedHeadroom()

Method Details

newInstance

public static EnhancedHeadroom newInstance(int totalPendingCount,
 int totalActiveCores)

setTotalPendingCount

public abstract void setTotalPendingCount(int totalPendingCount)

Set total pending container count.

Parameters:

totalPendingCount - the pending container count

getTotalPendingCount

public abstract int getTotalPendingCount()

Get total pending container count.

Returns:

the pending container count

setTotalActiveCores

public abstract void setTotalActiveCores(int totalActiveCores)

Set total active cores for the cluster.

Parameters:

totalActiveCores - the total active cores for the cluster

getTotalActiveCores

public abstract int getTotalActiveCores()

Get total active cores for the cluster.

Returns:

totalActiveCores the total active cores for the cluster

toString

public String toString()

Overrides:

toString in class Object

getNormalizedPendingCount

public double getNormalizedPendingCount(long multiplier)