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

java.lang.Object
  org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FSQueue
      org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FSParentQueue

All Implemented Interfaces:

Schedulable, Queue

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

Field Summary

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

parent, policy, recordFactory, scheduler

Constructor Summary

FSParentQueue(String name, FairScheduler scheduler, FSParentQueue parent)

Method Summary

void	addChildQueue(FSQueue child)
org.apache.hadoop.yarn.api.records.Resource	assignContainer(FSSchedulerNode node) Assign a container on this node if possible, and return the amount of resources assigned.
void	collectSchedulerApplications(Collection<org.apache.hadoop.yarn.api.records.ApplicationAttemptId> apps) Adds all applications in the queue and its subqueues to the given collection.
void	decrementRunnableApps()
ActiveUsersManager	getActiveUsersManager()
List<FSQueue>	getChildQueues() Gets the children of this queue, if any.
org.apache.hadoop.yarn.api.records.Resource	getDemand() Maximum number of resources required by this Schedulable.
int	getNumRunnableApps() Return the number of apps for which containers can be allocated.
List<org.apache.hadoop.yarn.api.records.QueueUserACLInfo>	getQueueUserAclInfo(org.apache.hadoop.security.UserGroupInformation user) Get queue ACLs for given user.
org.apache.hadoop.yarn.api.records.Resource	getResourceUsage() Get the aggregate amount of resources consumed by the schedulable.
void	incrementRunnableApps()
RMContainer	preemptContainer() Preempt a container from this Schedulable if possible.
void	recomputeShares() Recomputes the shares for all child queues and applications based on this queue's current share
void	recomputeSteadyShares()
void	recoverContainer(org.apache.hadoop.yarn.api.records.Resource clusterResource, SchedulerApplicationAttempt schedulerAttempt, RMContainer rmContainer) Recover the state of the queue for a given container.
void	setPolicy(SchedulingPolicy policy)
void	updateDemand() Refresh the Schedulable's demand and those of its children if any.
void	updatePreemptionVariables() Update the min/fair share preemption timeouts and threshold for this queue.

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

assignContainerPreCheck, getAccessibleNodeLabels, getDefaultNodeLabelExpression, getFairShare, getFairSharePreemptionThreshold, getFairSharePreemptionTimeout, getMaxShare, getMetrics, getMinShare, getMinSharePreemptionTimeout, getName, getParent, getPolicy, getPriority, getQueueInfo, getQueueName, getStartTime, getSteadyFairShare, getWeights, hasAccess, isActive, setFairShare, setFairSharePreemptionThreshold, setFairSharePreemptionTimeout, setMinSharePreemptionTimeout, setSteadyFairShare, throwPolicyDoesnotApplyException, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

FSParentQueue

public FSParentQueue(String name,
                     FairScheduler scheduler,
                     FSParentQueue parent)

Method Detail

addChildQueue

public void addChildQueue(FSQueue child)

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

recomputeSteadyShares

public void recomputeSteadyShares()

updatePreemptionVariables

public void updatePreemptionVariables()

Description copied from class: FSQueue

Update the min/fair share preemption timeouts and threshold for this queue.

Overrides:

updatePreemptionVariables in class FSQueue

getDemand

public org.apache.hadoop.yarn.api.records.Resource getDemand()

Description copied from interface: 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).

getResourceUsage

public org.apache.hadoop.yarn.api.records.Resource getResourceUsage()

Description copied from interface: Schedulable

Get the aggregate amount of resources consumed by the schedulable.

updateDemand

public void updateDemand()

Description copied from interface: Schedulable

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

getQueueUserAclInfo

public List<org.apache.hadoop.yarn.api.records.QueueUserACLInfo> getQueueUserAclInfo(org.apache.hadoop.security.UserGroupInformation user)

Description copied from interface: Queue

Get queue ACLs for given user.

Parameters:

user - username

Returns:

queue ACLs for user

assignContainer

public org.apache.hadoop.yarn.api.records.Resource assignContainer(FSSchedulerNode node)

Description copied from interface: Schedulable

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

preemptContainer

public RMContainer preemptContainer()

Description copied from interface: Schedulable

Preempt a container from this Schedulable if possible.

getChildQueues

public List<FSQueue> getChildQueues()

Description copied from class: FSQueue

Gets the children of this queue, if any.

Specified by:

getChildQueues in class FSQueue

setPolicy

public void setPolicy(SchedulingPolicy policy)
               throws AllocationConfigurationException

Specified by:

setPolicy in class FSQueue

Throws:

AllocationConfigurationException

incrementRunnableApps

public void incrementRunnableApps()

decrementRunnableApps

public void decrementRunnableApps()

getNumRunnableApps

public int getNumRunnableApps()

Description copied from class: FSQueue

Return the number of apps for which containers can be allocated. Includes apps in subqueues.

Specified by:

getNumRunnableApps in class FSQueue

collectSchedulerApplications

public void collectSchedulerApplications(Collection<org.apache.hadoop.yarn.api.records.ApplicationAttemptId> apps)

Description copied from class: FSQueue

Adds all applications in the queue and its subqueues to the given collection.

Specified by:

collectSchedulerApplications in class FSQueue

Parameters:

apps - the collection to add the applications to

getActiveUsersManager

public ActiveUsersManager getActiveUsersManager()

recoverContainer

public void recoverContainer(org.apache.hadoop.yarn.api.records.Resource clusterResource,
                             SchedulerApplicationAttempt schedulerAttempt,
                             RMContainer rmContainer)

Description copied from interface: Queue

Recover the state of the queue for a given container.

Parameters:

clusterResource - the resource of the cluster

schedulerAttempt - the application for which the container was allocated

rmContainer - the container that was recovered.