com.hazelcast.spi.hotrestart

Class HotBackupService

java.lang.Object

com.hazelcast.spi.hotrestart.HotBackupService

All Implemented Interfaces:

com.hazelcast.hotrestart.HotRestartService, com.hazelcast.spi.TransactionalService

public class HotBackupService
extends Object
implements com.hazelcast.hotrestart.HotRestartService, com.hazelcast.spi.TransactionalService

Service for initiating a cluster-wide backup of hot restart data.

Field Summary

Fields

Modifier and Type	Field and Description
static String	SERVICE_NAME Name of the Hot Restart backup service.

Fields inherited from interface com.hazelcast.hotrestart.HotRestartService

BACKUP_DIR_PREFIX

Constructor Summary

Constructors

Constructor and Description
HotBackupService(com.hazelcast.instance.Node node, HotRestartIntegrationService hotRestartService)

Method Summary

Modifier and Type	Method and Description
void	backup()
void	backup(long backupSeq)
void	commitBackup(long backupSeq, com.hazelcast.nio.Address initiator, String txnId) Attempt to perform the hot restart backup on this node.
<T extends com.hazelcast.transaction.TransactionalObject> T	createTransactionalObject(String name, com.hazelcast.transaction.impl.Transaction transaction)
String	getBackupDirectory()
com.hazelcast.hotrestart.BackupTaskStatus	getBackupTaskStatus()
void	interruptBackupTask()
void	interruptLocalBackupTask()
boolean	isHotBackupEnabled()
void	prepareBackup(com.hazelcast.nio.Address initiator, String txnId, long leaseTime) Attempt to prepare for a hot restart backup on this node.
boolean	rollbackBackup(String txnId) Rollback the transaction for the hot restart backup.
void	rollbackTransaction(String transactionId)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

SERVICE_NAME

public static final String SERVICE_NAME

Name of the Hot Restart backup service.

See Also:

Constant Field Values

Constructor Detail

HotBackupService

public HotBackupService(com.hazelcast.instance.Node node,
                        HotRestartIntegrationService hotRestartService)

Method Detail

backup

public void backup()

Specified by:

backup in interface com.hazelcast.hotrestart.HotRestartService

backup

public void backup(long backupSeq)

Specified by:

backup in interface com.hazelcast.hotrestart.HotRestartService

getBackupTaskStatus

public com.hazelcast.hotrestart.BackupTaskStatus getBackupTaskStatus()

Specified by:

getBackupTaskStatus in interface com.hazelcast.hotrestart.HotRestartService

interruptLocalBackupTask

public void interruptLocalBackupTask()

Specified by:

interruptLocalBackupTask in interface com.hazelcast.hotrestart.HotRestartService

interruptBackupTask

public void interruptBackupTask()

Specified by:

interruptBackupTask in interface com.hazelcast.hotrestart.HotRestartService

isHotBackupEnabled

public boolean isHotBackupEnabled()

Specified by:

isHotBackupEnabled in interface com.hazelcast.hotrestart.HotRestartService

getBackupDirectory

public String getBackupDirectory()

Specified by:

getBackupDirectory in interface com.hazelcast.hotrestart.HotRestartService

prepareBackup

public void prepareBackup(com.hazelcast.nio.Address initiator,
                          String txnId,
                          long leaseTime)

Attempt to prepare for a hot restart backup on this node. This method is intended to be called inside a transaction created by backup() or backup(long).

Parameters:

initiator - the member which initiated the transaction

txnId - the transaction ID

leaseTime - number of ms after which this transaction will expire

commitBackup

public void commitBackup(long backupSeq,
                         com.hazelcast.nio.Address initiator,
                         String txnId)

Attempt to perform the hot restart backup on this node. This method is intended to be called inside a transaction created by backup() or backup(long).

Parameters:

backupSeq - the suffix for the hot restart backup directory

initiator - the member which initated the transaction

txnId - the transaction ID

rollbackBackup

public boolean rollbackBackup(String txnId)

Rollback the transaction for the hot restart backup.

Parameters:

txnId - the transaction ID

Returns:

if the transaction was rolled back

createTransactionalObject

public <T extends com.hazelcast.transaction.TransactionalObject> T createTransactionalObject(String name,
                                                                                             com.hazelcast.transaction.impl.Transaction transaction)

Specified by:

createTransactionalObject in interface com.hazelcast.spi.TransactionalService

rollbackTransaction

public void rollbackTransaction(String transactionId)

Specified by:

rollbackTransaction in interface com.hazelcast.spi.TransactionalService