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

Class NMLogAggregationStatusTracker

java.lang.Object

org.apache.hadoop.service.AbstractService

org.apache.hadoop.service.CompositeService

org.apache.hadoop.yarn.server.nodemanager.logaggregation.tracker.NMLogAggregationStatusTracker

All Implemented Interfaces:

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

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

NMLogAggregationStatusTracker is used to cache log aggregation status for finished applications. It will also delete the old cached log aggregation status periodically.

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

STOP_ONLY_STARTED_SERVICES

Constructor Summary

Constructors

Constructor	Description
NMLogAggregationStatusTracker(Context context)

Method Summary

Modifier and Type	Method	Description
java.util.List<org.apache.hadoop.yarn.server.api.protocolrecords.LogAggregationReport>	pullCachedLogAggregationReports()
protected void	serviceStart()
void	serviceStop()
void	updateLogAggregationStatus(org.apache.hadoop.yarn.api.records.ApplicationId appId, org.apache.hadoop.yarn.api.records.LogAggregationStatus logAggregationStatus, long updateTime, java.lang.String diagnosis, boolean finalized)

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

addIfService, addService, getServices, removeService, serviceInit

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

NMLogAggregationStatusTracker

public NMLogAggregationStatusTracker(Context context)

Method Detail

serviceStart

protected void serviceStart()
                     throws java.lang.Exception

Overrides:

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

Throws:

java.lang.Exception

serviceStop

public void serviceStop()
                 throws java.lang.Exception

Overrides:

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

Throws:

java.lang.Exception

updateLogAggregationStatus

public void updateLogAggregationStatus(org.apache.hadoop.yarn.api.records.ApplicationId appId,
                                       org.apache.hadoop.yarn.api.records.LogAggregationStatus logAggregationStatus,
                                       long updateTime,
                                       java.lang.String diagnosis,
                                       boolean finalized)

pullCachedLogAggregationReports

public java.util.List<org.apache.hadoop.yarn.server.api.protocolrecords.LogAggregationReport> pullCachedLogAggregationReports()