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

Class AbstractResourceUsage

java.lang.Object

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

Direct Known Subclasses:

QueueResourceQuotas, ResourceUsage

public class AbstractResourceUsage
extends Object

This class can be used to track resource usage in queue/user/app. And it is thread-safe

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	AbstractResourceUsage.ResourceType	Use enum here to make implementation more cleaner and readable.
static class	AbstractResourceUsage.UsageByLabel	UsageByLabel stores resource array for all resource usage types.

Field Summary

Fields

Modifier and Type	Field	Description
protected ReentrantReadWriteLock.ReadLock	readLock
protected final Map<String,AbstractResourceUsage.UsageByLabel>	usages
protected ReentrantReadWriteLock.WriteLock	writeLock

Constructor Summary

Constructors

Constructor	Description
AbstractResourceUsage()

Method Summary

Modifier and Type	Method	Description
protected void	_dec(String label, AbstractResourceUsage.ResourceType type, org.apache.hadoop.yarn.api.records.Resource res)
protected org.apache.hadoop.yarn.api.records.Resource	_get(String label, AbstractResourceUsage.ResourceType type)
protected org.apache.hadoop.yarn.api.records.Resource	_getAll(AbstractResourceUsage.ResourceType type)
protected void	_inc(String label, AbstractResourceUsage.ResourceType type, org.apache.hadoop.yarn.api.records.Resource res)
protected void	_set(String label, AbstractResourceUsage.ResourceType type, org.apache.hadoop.yarn.api.records.Resource res)
Set<String>	getExistingNodeLabels()
String	toString()

Methods inherited from class java.lang.Object

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

Field Details

readLock

protected ReentrantReadWriteLock.ReadLock readLock

writeLock

protected ReentrantReadWriteLock.WriteLock writeLock

usages

protected final Map<String,AbstractResourceUsage.UsageByLabel> usages

Constructor Details

AbstractResourceUsage

public AbstractResourceUsage()

Method Details

_get

protected org.apache.hadoop.yarn.api.records.Resource _get(String label,
 AbstractResourceUsage.ResourceType type)

_getAll

protected org.apache.hadoop.yarn.api.records.Resource _getAll(AbstractResourceUsage.ResourceType type)

_set

protected void _set(String label,
 AbstractResourceUsage.ResourceType type,
 org.apache.hadoop.yarn.api.records.Resource res)

_inc

protected void _inc(String label,
 AbstractResourceUsage.ResourceType type,
 org.apache.hadoop.yarn.api.records.Resource res)

_dec

protected void _dec(String label,
 AbstractResourceUsage.ResourceType type,
 org.apache.hadoop.yarn.api.records.Resource res)

toString

public String toString()

Overrides:

toString in class Object

getExistingNodeLabels

public Set<String> getExistingNodeLabels()