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

Class FSLeafQueue

java.lang.Object

org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.Schedulable

org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FSQueue

org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FSLeafQueue

All Implemented Interfaces:

Queue

@InterfaceAudience.Private
@InterfaceStability.Unstable
public class FSLeafQueue
extends FSQueue

Field Summary

Fields inherited from class org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FSQueue

parent, policy, recordFactory

Constructor Summary

Constructors

Constructor and Description
FSLeafQueue(String name, QueueManager queueMgr, FairScheduler scheduler, FSParentQueue parent)

Method Summary

Methods

Modifier and Type	Method and Description
void	addApp(FSSchedulerApp app)
Resource	assignContainer(FSSchedulerNode node) Assign a container on this node if possible, and return the amount of resources assigned.
Collection<AppSchedulable>	getAppSchedulables()
Collection<FSQueue>	getChildQueues() Gets the children of this queue, if any.
Resource	getDemand() Maximum number of resources required by this Schedulable.
long	getLastTimeAtHalfFairShare()
long	getLastTimeAtMinShare()
List<QueueUserACLInfo>	getQueueUserAclInfo(UserGroupInformation user) Get queue ACLs for given user.
Resource	getResourceUsage() Get the aggregate amount of resources consumed by the schedulable.
void	recomputeShares() Recomputes the shares for all child queues and applications based on this queue's current share
void	removeApp(FSSchedulerApp app)
void	setLastTimeAtHalfFairShare(long lastTimeAtHalfFairShare)
void	setLastTimeAtMinShare(long lastTimeAtMinShare)
void	setPolicy(SchedulingPolicy policy)
void	updateDemand() Refresh the Schedulable's demand and those of its children if any.

Methods inherited from class org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FSQueue

assignContainerPreCheck, getMaxShare, getMetrics, getMinShare, getName, getPolicy, getPriority, getQueueAcls, getQueueInfo, getQueueName, getStartTime, getWeights, hasAccess, setFairShare, throwPolicyDoesnotApplyException

Methods inherited from class org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.Schedulable

getFairShare, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

FSLeafQueue

public FSLeafQueue(String name,
           QueueManager queueMgr,
           FairScheduler scheduler,
           FSParentQueue parent)

Method Detail

addApp

public void addApp(FSSchedulerApp app)

removeApp

public void removeApp(FSSchedulerApp app)

getAppSchedulables

public Collection<AppSchedulable> getAppSchedulables()

setPolicy

public void setPolicy(SchedulingPolicy policy)
               throws AllocationConfigurationException

Specified by:

setPolicy in class FSQueue

Throws:

AllocationConfigurationException

recomputeShares

public void recomputeShares()

Description copied from class: FSQueue

Recomputes the shares for all child queues and applications based on this queue's current share

Specified by:

recomputeShares in class FSQueue

getDemand

public Resource getDemand()

Description copied from class: Schedulable

Maximum number of resources required by this Schedulable. This is defined as number of currently utilized resources + number of unlaunched resources (that are either not yet launched or need to be speculated).

Specified by:

getDemand in class Schedulable

getResourceUsage

public Resource getResourceUsage()

Description copied from class: Schedulable

Get the aggregate amount of resources consumed by the schedulable.

Specified by:

getResourceUsage in class Schedulable

updateDemand

public void updateDemand()

Description copied from class: Schedulable

Refresh the Schedulable's demand and those of its children if any.

Specified by:

updateDemand in class Schedulable

assignContainer

public Resource assignContainer(FSSchedulerNode node)

Description copied from class: Schedulable

Assign a container on this node if possible, and return the amount of resources assigned.

Specified by:

assignContainer in class Schedulable

getChildQueues

public Collection<FSQueue> getChildQueues()

Description copied from class: FSQueue

Gets the children of this queue, if any.

Specified by:

getChildQueues in class FSQueue

getQueueUserAclInfo

public List<QueueUserACLInfo> getQueueUserAclInfo(UserGroupInformation user)

Description copied from interface: Queue

Get queue ACLs for given user.

Parameters:

user - username

Returns:

queue ACLs for user

getLastTimeAtMinShare

public long getLastTimeAtMinShare()

setLastTimeAtMinShare

public void setLastTimeAtMinShare(long lastTimeAtMinShare)

getLastTimeAtHalfFairShare

public long getLastTimeAtHalfFairShare()

setLastTimeAtHalfFairShare

public void setLastTimeAtHalfFairShare(long lastTimeAtHalfFairShare)