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

Class AbstractYarnScheduler

java.lang.Object

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

All Implemented Interfaces:

org.apache.hadoop.yarn.event.EventHandler<SchedulerEvent>, Recoverable, ResourceScheduler, YarnScheduler

Direct Known Subclasses:

CapacityScheduler, FairScheduler, FifoScheduler

public abstract class AbstractYarnScheduler
extends Object
implements ResourceScheduler

Field Summary

Fields

Modifier and Type	Field and Description
protected Map<org.apache.hadoop.yarn.api.records.ApplicationId,SchedulerApplication>	applications
protected static Allocation	EMPTY_ALLOCATION
protected static List<org.apache.hadoop.yarn.api.records.Container>	EMPTY_CONTAINER_LIST
protected RMContext	rmContext

Constructor Summary

Constructors

Constructor and Description
AbstractYarnScheduler()

Method Summary

Methods

Modifier and Type	Method and Description
Map<org.apache.hadoop.yarn.api.records.ApplicationId,SchedulerApplication>	getSchedulerApplications()
List<org.apache.hadoop.yarn.api.records.Container>	getTransferredContainers(org.apache.hadoop.yarn.api.records.ApplicationAttemptId currentAttempt)
String	moveApplication(org.apache.hadoop.yarn.api.records.ApplicationId appId, String newQueue) Moves the given application to the given queue

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.hadoop.yarn.server.resourcemanager.scheduler.ResourceScheduler

reinitialize

Methods inherited from interface org.apache.hadoop.yarn.server.resourcemanager.scheduler.YarnScheduler

allocate, checkAccess, getAppResourceUsageReport, getAppsInQueue, getMaximumResourceCapability, getMinimumResourceCapability, getNodeReport, getNumClusterNodes, getQueueInfo, getQueueUserAclInfo, getRMContainer, getRootQueueMetrics, getSchedulerAppInfo

Methods inherited from interface org.apache.hadoop.yarn.event.EventHandler

handle

Methods inherited from interface org.apache.hadoop.yarn.server.resourcemanager.recovery.Recoverable

recover

Field Detail

rmContext

protected RMContext rmContext

applications

protected Map<org.apache.hadoop.yarn.api.records.ApplicationId,SchedulerApplication> applications

EMPTY_CONTAINER_LIST

protected static final List<org.apache.hadoop.yarn.api.records.Container> EMPTY_CONTAINER_LIST

EMPTY_ALLOCATION

protected static final Allocation EMPTY_ALLOCATION

Constructor Detail

AbstractYarnScheduler

public AbstractYarnScheduler()

Method Detail

getTransferredContainers

public List<org.apache.hadoop.yarn.api.records.Container> getTransferredContainers(org.apache.hadoop.yarn.api.records.ApplicationAttemptId currentAttempt)

getSchedulerApplications

public Map<org.apache.hadoop.yarn.api.records.ApplicationId,SchedulerApplication> getSchedulerApplications()

moveApplication

public String moveApplication(org.apache.hadoop.yarn.api.records.ApplicationId appId,
                     String newQueue)
                       throws org.apache.hadoop.yarn.exceptions.YarnException

Description copied from interface: YarnScheduler

Moves the given application to the given queue

Specified by:

moveApplication in interface YarnScheduler

Returns:

the name of the queue the application was placed into

Throws:

org.apache.hadoop.yarn.exceptions.YarnException - if the move cannot be carried out