org.apache.hadoop.yarn.server.nodemanager
Class NodeHealthCheckerService

java.lang.Object
  org.apache.hadoop.yarn.service.AbstractService
      org.apache.hadoop.yarn.service.CompositeService
          org.apache.hadoop.yarn.server.nodemanager.NodeHealthCheckerService

All Implemented Interfaces:

org.apache.hadoop.yarn.service.Service

public class NodeHealthCheckerService
extends org.apache.hadoop.yarn.service.CompositeService

The class which provides functionality of checking the health of the node and reporting back to the service for which the health checker has been asked to report.

Nested Class Summary

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

org.apache.hadoop.yarn.service.CompositeService.CompositeServiceShutdownHook

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

org.apache.hadoop.yarn.service.Service.STATE

Constructor Summary

NodeHealthCheckerService()

Method Summary

LocalDirsHandlerService	getDiskHandler()
void	init(org.apache.hadoop.conf.Configuration conf)

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

addService, getServices, removeService, start, stop

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

getConfig, getName, getServiceState, getStartTime, register, unregister

Methods inherited from class java.lang.Object

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

Constructor Detail

NodeHealthCheckerService

public NodeHealthCheckerService()

Method Detail

init

public void init(org.apache.hadoop.conf.Configuration conf)

Specified by:

init in interface org.apache.hadoop.yarn.service.Service

Overrides:

init in class org.apache.hadoop.yarn.service.CompositeService

getDiskHandler

public LocalDirsHandlerService getDiskHandler()

Returns:

the disk handler