org.apache.hadoop.mapreduce.jobhistory
Class JobHistoryCopyService

java.lang.Object
  org.apache.hadoop.yarn.service.AbstractService
      org.apache.hadoop.yarn.service.CompositeService
          org.apache.hadoop.mapreduce.jobhistory.JobHistoryCopyService

All Implemented Interfaces:

org.apache.hadoop.mapreduce.jobhistory.HistoryEventHandler, org.apache.hadoop.yarn.service.Service

public class JobHistoryCopyService
extends org.apache.hadoop.yarn.service.CompositeService
implements org.apache.hadoop.mapreduce.jobhistory.HistoryEventHandler

Reads in history events from the JobHistoryFile and sends them out again to be recorded.

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

JobHistoryCopyService(org.apache.hadoop.yarn.api.records.ApplicationAttemptId applicationAttemptId, org.apache.hadoop.yarn.event.EventHandler handler)

Method Summary

static org.apache.hadoop.fs.FSDataInputStream	getPreviousJobHistoryFileStream(org.apache.hadoop.conf.Configuration conf, org.apache.hadoop.yarn.api.records.ApplicationAttemptId applicationAttemptId)
void	handleEvent(org.apache.hadoop.mapreduce.jobhistory.HistoryEvent event)
void	init(org.apache.hadoop.conf.Configuration conf)
void	start()

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

addService, getServices, removeService, 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

JobHistoryCopyService

public JobHistoryCopyService(org.apache.hadoop.yarn.api.records.ApplicationAttemptId applicationAttemptId,
                             org.apache.hadoop.yarn.event.EventHandler handler)

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

handleEvent

public void handleEvent(org.apache.hadoop.mapreduce.jobhistory.HistoryEvent event)
                 throws IOException

Specified by:

handleEvent in interface org.apache.hadoop.mapreduce.jobhistory.HistoryEventHandler

Throws:

IOException

start

public void start()

Specified by:

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

Overrides:

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

getPreviousJobHistoryFileStream

public static org.apache.hadoop.fs.FSDataInputStream getPreviousJobHistoryFileStream(org.apache.hadoop.conf.Configuration conf,
                                                                                     org.apache.hadoop.yarn.api.records.ApplicationAttemptId applicationAttemptId)
                                                                              throws IOException

Throws:

IOException