org.apache.hadoop.yarn.server.nodemanager.recovery

Class NMNullStateStoreService

java.lang.Object

org.apache.hadoop.service.AbstractService

org.apache.hadoop.yarn.server.nodemanager.recovery.NMStateStoreService

org.apache.hadoop.yarn.server.nodemanager.recovery.NMNullStateStoreService

All Implemented Interfaces:

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

public class NMNullStateStoreService
extends NMStateStoreService

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.yarn.server.nodemanager.recovery.NMStateStoreService

NMStateStoreService.LocalResourceTrackerState, NMStateStoreService.RecoveredDeletionServiceState, NMStateStoreService.RecoveredLocalizationState, NMStateStoreService.RecoveredUserResources

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

org.apache.hadoop.service.Service.STATE

Constructor Summary

Constructors

Constructor and Description
NMNullStateStoreService()

Method Summary

Methods

Modifier and Type	Method and Description
boolean	canRecover()
protected void	closeStorage()
void	finishResourceLocalization(String user, org.apache.hadoop.yarn.api.records.ApplicationId appId, YarnServerNodemanagerRecoveryProtos.LocalizedResourceProto proto) Record the completion of a resource localization
protected void	initStorage(org.apache.hadoop.conf.Configuration conf)
NMStateStoreService.RecoveredDeletionServiceState	loadDeletionServiceState()
NMStateStoreService.RecoveredLocalizationState	loadLocalizationState() Load the state of localized resources
void	removeDeletionTask(int taskId)
void	removeLocalizedResource(String user, org.apache.hadoop.yarn.api.records.ApplicationId appId, org.apache.hadoop.fs.Path localPath) Remove records related to a resource localization
void	startResourceLocalization(String user, org.apache.hadoop.yarn.api.records.ApplicationId appId, org.apache.hadoop.yarn.proto.YarnProtos.LocalResourceProto proto, org.apache.hadoop.fs.Path localPath) Record the start of localization for a resource
protected void	startStorage()
void	storeDeletionTask(int taskId, YarnServerNodemanagerRecoveryProtos.DeletionServiceDeleteTaskProto taskProto)

Methods inherited from class org.apache.hadoop.yarn.server.nodemanager.recovery.NMStateStoreService

serviceInit, 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

Constructor Detail

NMNullStateStoreService

public NMNullStateStoreService()

Method Detail

canRecover

public boolean canRecover()

Overrides:

canRecover in class NMStateStoreService

loadLocalizationState

public NMStateStoreService.RecoveredLocalizationState loadLocalizationState()
                                                                     throws IOException

Description copied from class: NMStateStoreService

Load the state of localized resources

Specified by:

loadLocalizationState in class NMStateStoreService

Returns:

recovered localized resource state

Throws:

IOException

startResourceLocalization

public void startResourceLocalization(String user,
                             org.apache.hadoop.yarn.api.records.ApplicationId appId,
                             org.apache.hadoop.yarn.proto.YarnProtos.LocalResourceProto proto,
                             org.apache.hadoop.fs.Path localPath)
                               throws IOException

Description copied from class: NMStateStoreService

Record the start of localization for a resource

Specified by:

startResourceLocalization in class NMStateStoreService

Parameters:

user - the username or null if the resource is public

appId - the application ID if the resource is app-specific or null

proto - the resource request

localPath - local filesystem path where the resource will be stored

Throws:

IOException

finishResourceLocalization

public void finishResourceLocalization(String user,
                              org.apache.hadoop.yarn.api.records.ApplicationId appId,
                              YarnServerNodemanagerRecoveryProtos.LocalizedResourceProto proto)
                                throws IOException

Description copied from class: NMStateStoreService

Record the completion of a resource localization

Specified by:

finishResourceLocalization in class NMStateStoreService

Parameters:

user - the username or null if the resource is public

appId - the application ID if the resource is app-specific or null

proto - the serialized localized resource

Throws:

IOException

removeLocalizedResource

public void removeLocalizedResource(String user,
                           org.apache.hadoop.yarn.api.records.ApplicationId appId,
                           org.apache.hadoop.fs.Path localPath)
                             throws IOException

Description copied from class: NMStateStoreService

Remove records related to a resource localization

Specified by:

removeLocalizedResource in class NMStateStoreService

Parameters:

user - the username or null if the resource is public

appId - the application ID if the resource is app-specific or null

localPath - local filesystem path where the resource will be stored

Throws:

IOException

loadDeletionServiceState

public NMStateStoreService.RecoveredDeletionServiceState loadDeletionServiceState()
                                                                           throws IOException

Specified by:

loadDeletionServiceState in class NMStateStoreService

Throws:

IOException

storeDeletionTask

public void storeDeletionTask(int taskId,
                     YarnServerNodemanagerRecoveryProtos.DeletionServiceDeleteTaskProto taskProto)
                       throws IOException

Specified by:

storeDeletionTask in class NMStateStoreService

Throws:

IOException

removeDeletionTask

public void removeDeletionTask(int taskId)
                        throws IOException

Specified by:

removeDeletionTask in class NMStateStoreService

Throws:

IOException

initStorage

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

Specified by:

initStorage in class NMStateStoreService

Throws:

IOException

startStorage

protected void startStorage()
                     throws IOException

Specified by:

startStorage in class NMStateStoreService

Throws:

IOException

closeStorage

protected void closeStorage()
                     throws IOException

Specified by:

closeStorage in class NMStateStoreService

Throws:

IOException