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

Class NodeHealthScriptRunner

java.lang.Object

org.apache.hadoop.service.AbstractService

org.apache.hadoop.yarn.server.nodemanager.health.TimedHealthReporterService

org.apache.hadoop.yarn.server.nodemanager.health.NodeHealthScriptRunner

All Implemented Interfaces:

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

public class NodeHealthScriptRunner
extends TimedHealthReporterService

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

Nested Class Summary

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

org.apache.hadoop.service.Service.STATE

Method Summary

Modifier and Type	Method	Description
static NodeHealthScriptRunner	newInstance(java.lang.String scriptName, org.apache.hadoop.conf.Configuration conf)
void	serviceStop()	Method used to terminate the health monitoring service.

Methods inherited from class org.apache.hadoop.yarn.server.nodemanager.health.TimedHealthReporterService

getHealthReport, getLastHealthReportTime, isHealthy, serviceStart, setHealthy

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, serviceInit, setConfig, start, stop, toString, unregisterGlobalListener, unregisterServiceListener, waitForServiceToStop

Methods inherited from class java.lang.Object

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

Method Detail

newInstance

public static NodeHealthScriptRunner newInstance(java.lang.String scriptName,
                                                 org.apache.hadoop.conf.Configuration conf)

serviceStop

public void serviceStop()
                 throws java.lang.Exception

Description copied from class: TimedHealthReporterService

Method used to terminate the health monitoring service.

Overrides:

serviceStop in class TimedHealthReporterService

Throws:

java.lang.Exception