org.apache.hadoop.yarn.server.resourcemanager.ahs
Class RMApplicationHistoryWriter

java.lang.Object
  org.apache.hadoop.service.AbstractService
      org.apache.hadoop.service.CompositeService
          org.apache.hadoop.yarn.server.resourcemanager.ahs.RMApplicationHistoryWriter

All Implemented Interfaces:

Closeable, org.apache.hadoop.service.Service

@InterfaceAudience.Private
@InterfaceStability.Unstable
public class RMApplicationHistoryWriter
extends org.apache.hadoop.service.CompositeService

ResourceManager uses this class to write the information of RMApp, RMAppAttempt and RMContainer. These APIs are non-blocking, and just schedule a writing history event. An self-contained dispatcher vector will handle the event in separate threads, and extract the required fields that are going to be persisted. Then, the extracted information will be persisted via the implementation of ApplicationHistoryStore.

Nested Class Summary

protected static class

RMApplicationHistoryWriter.MultiThreadedDispatcher

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

static org.apache.commons.logging.Log

LOG

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

STOP_ONLY_STARTED_SERVICES

Constructor Summary

RMApplicationHistoryWriter()

Method Summary

void	applicationAttemptFinished(RMAppAttempt appAttempt, RMAppAttemptState finalState)
void	applicationAttemptStarted(RMAppAttempt appAttempt)
void	applicationFinished(RMApp app, RMAppState finalState)
void	applicationStarted(RMApp app)
void	containerFinished(RMContainer container)
void	containerStarted(RMContainer container)
protected org.apache.hadoop.yarn.server.applicationhistoryservice.ApplicationHistoryStore	createApplicationHistoryStore(org.apache.hadoop.conf.Configuration conf)
protected org.apache.hadoop.yarn.event.Dispatcher	createDispatcher(org.apache.hadoop.conf.Configuration conf)
protected void	handleWritingApplicationHistoryEvent(WritingApplicationHistoryEvent event)
protected void	serviceInit(org.apache.hadoop.conf.Configuration conf)

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

addIfService, addService, getServices, removeService, serviceStart, serviceStop

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

Field Detail

LOG

public static final org.apache.commons.logging.Log LOG

Constructor Detail

RMApplicationHistoryWriter

public RMApplicationHistoryWriter()

Method Detail

serviceInit

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

Overrides:

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

Throws:

Exception

createDispatcher

protected org.apache.hadoop.yarn.event.Dispatcher createDispatcher(org.apache.hadoop.conf.Configuration conf)

createApplicationHistoryStore

protected org.apache.hadoop.yarn.server.applicationhistoryservice.ApplicationHistoryStore createApplicationHistoryStore(org.apache.hadoop.conf.Configuration conf)

handleWritingApplicationHistoryEvent

protected void handleWritingApplicationHistoryEvent(WritingApplicationHistoryEvent event)

applicationStarted

public void applicationStarted(RMApp app)

applicationFinished

public void applicationFinished(RMApp app,
                                RMAppState finalState)

applicationAttemptStarted

public void applicationAttemptStarted(RMAppAttempt appAttempt)

applicationAttemptFinished

public void applicationAttemptFinished(RMAppAttempt appAttempt,
                                       RMAppAttemptState finalState)

containerStarted

public void containerStarted(RMContainer container)

containerFinished

public void containerFinished(RMContainer container)