org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt

Class AMLivelinessMonitor

java.lang.Object

org.apache.hadoop.service.AbstractService

org.apache.hadoop.yarn.util.AbstractLivelinessMonitor<ApplicationAttemptId>

org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.AMLivelinessMonitor

All Implemented Interfaces:

Closeable, AutoCloseable, Service

public class AMLivelinessMonitor
extends AbstractLivelinessMonitor<ApplicationAttemptId>

Nested Class Summary

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

Service.STATE

Field Summary

Fields inherited from class org.apache.hadoop.yarn.util.AbstractLivelinessMonitor

DEFAULT_EXPIRE

Constructor Summary

Constructors

Constructor and Description
AMLivelinessMonitor(Dispatcher d)

Method Summary

Methods

Modifier and Type	Method and Description
protected void	expire(ApplicationAttemptId id)
void	serviceInit(Configuration conf) All initialization code needed by a service.

Methods inherited from class org.apache.hadoop.yarn.util.AbstractLivelinessMonitor

receivedPing, register, serviceStart, serviceStop, setExpireInterval, setMonitorInterval, unregister

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

Constructor Detail

AMLivelinessMonitor

public AMLivelinessMonitor(Dispatcher d)

Method Detail

serviceInit

public void serviceInit(Configuration conf)
                 throws Exception

Description copied from class: AbstractService

All initialization code needed by a service. This method will only ever be called once during the lifecycle of a specific service instance. Implementations do not need to be synchronized as the logic in AbstractService.init(Configuration) prevents re-entrancy. The base implementation checks to see if the subclass has created a new configuration instance, and if so, updates the base class value

Overrides:

serviceInit in class AbstractService

Parameters:

conf - configuration

Throws:

Exception - on a failure -these will be caught, possibly wrapped, and wil; trigger a service stop

expire

protected void expire(ApplicationAttemptId id)

Specified by:

expire in class AbstractLivelinessMonitor<ApplicationAttemptId>