org.apache.hadoop.yarn.api.records

Class ResourceUtilization

java.lang.Object

org.apache.hadoop.yarn.api.records.ResourceUtilization

All Implemented Interfaces:

Comparable<ResourceUtilization>

@InterfaceAudience.Public
 @InterfaceStability.Unstable
public abstract class ResourceUtilization
extends Object
implements Comparable<ResourceUtilization>

ResourceUtilization models the utilization of a set of computer resources in the cluster.

Constructor Summary

Constructors

Constructor and Description
ResourceUtilization()

Method Summary

Modifier and Type	Method and Description
void	addTo(int pmem, int vmem, float cpu) Add utilization to the current one.
boolean	equals(Object obj)
abstract float	getCPU() Get CPU utilization.
abstract int	getPhysicalMemory() Get physical memory.
abstract int	getVirtualMemory() Get used virtual memory.
int	hashCode()
static ResourceUtilization	newInstance(int pmem, int vmem, float cpu)
static ResourceUtilization	newInstance(ResourceUtilization resourceUtil)
abstract void	setCPU(float cpu) Set CPU utilization.
abstract void	setPhysicalMemory(int pmem) Set physical memory.
abstract void	setVirtualMemory(int vmem) Set used virtual memory.
void	subtractFrom(int pmem, int vmem, float cpu) Subtract utilization from the current one.
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.lang.Comparable

compareTo

Constructor Detail

ResourceUtilization

public ResourceUtilization()

Method Detail

newInstance

@InterfaceAudience.Public
 @InterfaceStability.Unstable
public static ResourceUtilization newInstance(int pmem,
                                                                                                      int vmem,
                                                                                                      float cpu)

newInstance

@InterfaceAudience.Public
 @InterfaceStability.Unstable
public static ResourceUtilization newInstance(ResourceUtilization resourceUtil)

getVirtualMemory

@InterfaceAudience.Public
 @InterfaceStability.Unstable
public abstract int getVirtualMemory()

Get used virtual memory.

Returns:

virtual memory in MB

setVirtualMemory

@InterfaceAudience.Public
 @InterfaceStability.Unstable
public abstract void setVirtualMemory(int vmem)

Set used virtual memory.

Parameters:

vmem - virtual memory in MB

getPhysicalMemory

@InterfaceAudience.Public
 @InterfaceStability.Unstable
public abstract int getPhysicalMemory()

Get physical memory.

Returns:

physical memory in MB

setPhysicalMemory

@InterfaceAudience.Public
 @InterfaceStability.Unstable
public abstract void setPhysicalMemory(int pmem)

Set physical memory.

Parameters:

pmem - physical memory in MB

getCPU

@InterfaceAudience.Public
 @InterfaceStability.Unstable
public abstract float getCPU()

Get CPU utilization.

Returns:

CPU utilization normalized to 1 CPU

setCPU

@InterfaceAudience.Public
 @InterfaceStability.Unstable
public abstract void setCPU(float cpu)

Set CPU utilization.

Parameters:

cpu - CPU utilization normalized to 1 CPU

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

toString

public String toString()

Overrides:

toString in class Object

addTo

@InterfaceAudience.Public
 @InterfaceStability.Unstable
public void addTo(int pmem,
                                                                          int vmem,
                                                                          float cpu)

Add utilization to the current one.

Parameters:

pmem - Physical memory used to add.

vmem - Virtual memory used to add.

cpu - CPU utilization to add.

subtractFrom

@InterfaceAudience.Public
 @InterfaceStability.Unstable
public void subtractFrom(int pmem,
                                                                                 int vmem,
                                                                                 float cpu)

Subtract utilization from the current one.

Parameters:

pmem - Physical memory to be subtracted.

vmem - Virtual memory to be subtracted.

cpu - CPU utilization to be subtracted.