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

Class RMDelegatedNodeLabelsUpdater

java.lang.Object

org.apache.hadoop.service.AbstractService

org.apache.hadoop.service.CompositeService

org.apache.hadoop.yarn.server.resourcemanager.nodelabels.RMDelegatedNodeLabelsUpdater

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable, org.apache.hadoop.service.Service

public class RMDelegatedNodeLabelsUpdater
extends org.apache.hadoop.service.CompositeService

Update nodes labels map for ResourceManager periodically. It collects nodes labels from RMNodeLabelsMappingProvider and updates the nodes -> labels map via RMNodeLabelsManager. This service is enabled when configuration "yarn.node-labels.configuration-type" is set to "delegated-centralized".

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.service.CompositeService

org.apache.hadoop.service.CompositeService.CompositeServiceShutdownHook

Nested classes/interfaces inherited from interface org.apache.hadoop.service.Service

org.apache.hadoop.service.Service.STATE

Field Summary

Fields

Modifier and Type	Field	Description
static long	DISABLE_DELEGATED_NODE_LABELS_UPDATE
long	nodeLabelsUpdateInterval

Fields inherited from class org.apache.hadoop.service.CompositeService

STOP_ONLY_STARTED_SERVICES

Constructor Summary

Constructors

Constructor	Description
RMDelegatedNodeLabelsUpdater(RMContext rmContext)

Method Summary

Modifier and Type	Method	Description
protected void	serviceInit(org.apache.hadoop.conf.Configuration conf)
protected void	serviceStart()
protected void	serviceStop()	Terminate the timer.
void	updateNodeLabels(org.apache.hadoop.yarn.api.records.NodeId node)	Update node labels for a specified node.

Methods inherited from class org.apache.hadoop.service.CompositeService

addIfService, addService, getServices, removeService

Methods inherited from class org.apache.hadoop.service.AbstractService

close, getBlockers, getConfig, getFailureCause, getFailureState, getLifecycleHistory, getName, getServiceState, getStartTime, init, isInState, noteFailure, putBlocker, registerGlobalListener, registerServiceListener, removeBlocker, setConfig, start, stop, toString, unregisterGlobalListener, unregisterServiceListener, waitForServiceToStop

Methods inherited from class java.lang.Object

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

Field Detail

DISABLE_DELEGATED_NODE_LABELS_UPDATE

public static final long DISABLE_DELEGATED_NODE_LABELS_UPDATE

See Also:

Constant Field Values

nodeLabelsUpdateInterval

@VisibleForTesting
public long nodeLabelsUpdateInterval

Constructor Detail

RMDelegatedNodeLabelsUpdater

public RMDelegatedNodeLabelsUpdater(RMContext rmContext)

Method Detail

serviceInit

protected void serviceInit(org.apache.hadoop.conf.Configuration conf)
                    throws java.lang.Exception

Overrides:

serviceInit in class org.apache.hadoop.service.CompositeService

Throws:

java.lang.Exception

serviceStart

protected void serviceStart()
                     throws java.lang.Exception

Overrides:

serviceStart in class org.apache.hadoop.service.CompositeService

Throws:

java.lang.Exception

serviceStop

protected void serviceStop()
                    throws java.lang.Exception

Terminate the timer.

Overrides:

serviceStop in class org.apache.hadoop.service.CompositeService

Throws:

java.lang.Exception - exception occurs.

updateNodeLabels

public void updateNodeLabels(org.apache.hadoop.yarn.api.records.NodeId node)

Update node labels for a specified node.

Parameters:

node - the node to update node labels