Package org.apache.hadoop.mapreduce.v2.hs

Class JobHistoryServer

java.lang.Object

org.apache.hadoop.service.AbstractService

org.apache.hadoop.service.CompositeService

org.apache.hadoop.mapreduce.v2.hs.JobHistoryServer

All Implemented Interfaces:

Closeable, AutoCloseable, org.apache.hadoop.service.Service

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

JobHistoryServer is responsible for servicing all job history related requests from client.

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

Modifier and Type	Field	Description
static final long	historyServerTimeStamp
protected JHSDelegationTokenSecretManager	jhsDTSecretManager
static final int	SHUTDOWN_HOOK_PRIORITY	Priority of the JobHistoryServer shutdown hook.

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

STOP_ONLY_STARTED_SERVICES

Constructor Summary

Constructors

Constructor	Description
JobHistoryServer()

Method Summary

Modifier and Type	Method	Description
protected HistoryClientService	createHistoryClientService()
protected JHSDelegationTokenSecretManager	createJHSSecretManager(org.apache.hadoop.conf.Configuration conf, HistoryServerStateStoreService store)
protected HistoryServerStateStoreService	createStateStore(org.apache.hadoop.conf.Configuration conf)
protected void	doSecureLogin(org.apache.hadoop.conf.Configuration conf)
static InetSocketAddress	getBindAddress(org.apache.hadoop.conf.Configuration conf)	Retrieve JHS bind address from configuration
HistoryClientService	getClientService()
static void	main(String[] args)
protected void	serviceInit(org.apache.hadoop.conf.Configuration conf)
protected void	serviceStart()
protected void	serviceStop()

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

addIfService, addService, getServices, removeService

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 Details

SHUTDOWN_HOOK_PRIORITY

public static final int SHUTDOWN_HOOK_PRIORITY

Priority of the JobHistoryServer shutdown hook.

See Also:

• Constant Field Values

historyServerTimeStamp

public static final long historyServerTimeStamp

jhsDTSecretManager

protected JHSDelegationTokenSecretManager jhsDTSecretManager

Constructor Details

JobHistoryServer

public JobHistoryServer()

Method Details

serviceInit

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

Overrides:

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

Throws:

Exception

createHistoryClientService

@VisibleForTesting
protected HistoryClientService createHistoryClientService()

createJHSSecretManager

protected JHSDelegationTokenSecretManager createJHSSecretManager(org.apache.hadoop.conf.Configuration conf,
 HistoryServerStateStoreService store)

createStateStore

protected HistoryServerStateStoreService createStateStore(org.apache.hadoop.conf.Configuration conf)

doSecureLogin

protected void doSecureLogin(org.apache.hadoop.conf.Configuration conf)
                      throws IOException

Throws:

IOException

getBindAddress

public static InetSocketAddress getBindAddress(org.apache.hadoop.conf.Configuration conf)

Retrieve JHS bind address from configuration

Parameters:

conf -

Returns:

InetSocketAddress

serviceStart

protected void serviceStart()
                     throws Exception

Overrides:

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

Throws:

Exception

serviceStop

protected void serviceStop()
                    throws Exception

Overrides:

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

Throws:

Exception

getClientService

@Private
public HistoryClientService getClientService()

main

public static void main(String[] args)