Package org.apache.hadoop.yarn.server.nodemanager

Class NodeResourceMonitorImpl

java.lang.Object

org.apache.hadoop.service.AbstractService

org.apache.hadoop.yarn.server.nodemanager.NodeResourceMonitorImpl

All Implemented Interfaces:

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

public class NodeResourceMonitorImpl
extends org.apache.hadoop.service.AbstractService
implements NodeResourceMonitor

Implementation of the node resource monitor. It periodically tracks the resource utilization of the node and reports it to the NM.

Nested Class Summary

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

org.apache.hadoop.service.Service.STATE

Constructor Summary

Constructors

Constructor	Description
NodeResourceMonitorImpl(Context context)	Initialize the node resource monitor.

Method Summary

Modifier and Type	Method	Description
org.apache.hadoop.yarn.api.records.ResourceUtilization	getUtilization()	Get the resource utilization of the node.
protected void	serviceInit(org.apache.hadoop.conf.Configuration conf)	Initialize the service with the proper parameters.
protected void	serviceStart()	Start the thread that does the node resource utilization monitoring.
protected void	serviceStop()	Stop the thread that does the node resource utilization monitoring.

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

Methods inherited from interface org.apache.hadoop.service.Service

close, getBlockers, getConfig, getFailureCause, getFailureState, getLifecycleHistory, getName, getServiceState, getStartTime, init, isInState, registerServiceListener, start, stop, unregisterServiceListener, waitForServiceToStop

Constructor Detail

NodeResourceMonitorImpl

public NodeResourceMonitorImpl(Context context)

Initialize the node resource monitor.

Method Detail

serviceInit

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

Initialize the service with the proper parameters.

Overrides:

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

Throws:

java.lang.Exception

serviceStart

protected void serviceStart()
                     throws java.lang.Exception

Start the thread that does the node resource utilization monitoring.

Overrides:

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

Throws:

java.lang.Exception

serviceStop

protected void serviceStop()
                    throws java.lang.Exception

Stop the thread that does the node resource utilization monitoring.

Overrides:

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

Throws:

java.lang.Exception

getUtilization

public org.apache.hadoop.yarn.api.records.ResourceUtilization getUtilization()

Get the resource utilization of the node.

Specified by:

getUtilization in interface NodeResourceMonitor

Returns:

resource utilization of the node.