org.apache.activemq.store.kahadb

Class MessageDatabase

java.lang.Object

org.apache.activemq.util.ServiceSupport

org.apache.activemq.store.kahadb.MessageDatabase

All Implemented Interfaces:

BrokerServiceAware, org.apache.activemq.Service

Direct Known Subclasses:

KahaDBStore

public abstract class MessageDatabase
extends ServiceSupport
implements BrokerServiceAware

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected class	MessageDatabase.LastAckMarshaller
protected class	MessageDatabase.MessageKeysMarshaller
protected class	MessageDatabase.Metadata
protected class	MessageDatabase.StoredDestinationMarshaller

Field Summary

Fields

Modifier and Type	Field and Description
protected Set<String>	ackedAndPrepared
protected boolean	archiveDataLogs
protected BrokerService	brokerService
static File	DEFAULT_DIRECTORY
protected boolean	deleteAllMessages
protected File	directory
protected File	directoryArchive
protected boolean	failIfDatabaseIsLocked
protected boolean	forceRecoverIndex
protected File	indexDirectory
protected ReentrantReadWriteLock	indexLock
protected Journal	journal
protected String	journalDiskSyncStrategy
protected AtomicLong	journalSize
protected AtomicReference<Location>	lastAsyncJournalUpdate
static int	LOG_SLOW_ACCESS_TIME
protected MessageDatabase.Metadata	metadata
protected org.apache.activemq.store.kahadb.MessageDatabase.MetadataMarshaller	metadataMarshaller
protected AtomicBoolean	opened
protected PageFile	pageFile
protected LinkedHashMap<org.apache.activemq.command.TransactionId,List<org.apache.activemq.store.kahadb.MessageDatabase.Operation>>	preparedTransactions
static String	PROPERTY_LOG_SLOW_ACCESS_TIME
protected Set<String>	rolledBackAcks
protected ScheduledExecutorService	scheduler
protected ConcurrentMap<String,MessageStore>	storeCache This is a map to cache MessageStores for a specific KahaDestination key
protected HashMap<String,org.apache.activemq.store.kahadb.MessageDatabase.StoredDestination>	storedDestinations
protected static org.apache.activemq.protobuf.Buffer	UNMATCHED

Constructor Summary

Constructors

Constructor and Description
MessageDatabase()

Method Summary

Methods

Modifier and Type	Method and Description
protected void	checkpointCleanup(boolean cleanup)
protected void	clearStoreStats(KahaDestination kahaDestination) Clear the counter for the destination, if one exists.
void	close()
protected abstract void	configureMetadata()
protected void	decrementAndSubSizeToStoreStat(KahaDestination kahaDestination, long size)
protected void	decrementAndSubSizeToStoreStat(KahaDestination kahaDestination, String subKey, long size)
protected void	decrementAndSubSizeToStoreStat(String kahaDestKey, long size)
protected void	decrementAndSubSizeToStoreStat(String kahaDestKey, String subKey, long size)
void	doStart()
void	doStop(ServiceStopper stopper)
void	forgetRecoveredAcks(ArrayList<org.apache.activemq.command.MessageAck> acks, boolean rollback)
long	getCheckpointInterval()
long	getCleanupInterval()
int	getCompactAcksAfterNoGC()
File	getDirectory()
File	getDirectoryArchive()
protected org.apache.activemq.store.kahadb.MessageDatabase.StoredDestination	getExistingStoredDestination(KahaDestination destination, Transaction tx)
int	getFailoverProducersAuditDepth()
int	getIndexCacheSize()
File	getIndexDirectory()
float	getIndexLFUEvictionFactor()
int	getIndexWriteBatchSize()
Location[]	getInProgressTxLocationRange()
Journal	getJournal()
long	getJournalDiskSyncInterval()
String	getJournalDiskSyncStrategy()
HashSet<Integer>	getJournalFilesBeingReplicated()
int	getJournalMaxFileLength()
int	getJournalMaxWriteBatchSize()
org.apache.activemq.store.kahadb.MessageDatabase.LastAck	getLastAck(Transaction tx, org.apache.activemq.store.kahadb.MessageDatabase.StoredDestination sd, String subscriptionKey)
Location	getLastUpdatePosition()
int	getMaxFailoverProducersToTrack()
protected MessageDatabase.Metadata	getMetadata()
PageFile	getPageFile()
String	getPreallocationScope()
String	getPreallocationStrategy()
protected org.apache.activemq.store.kahadb.MessageDatabase.StoredDestination	getStoredDestination(KahaDestination destination, Transaction tx)
long	getStoredMessageCount(Transaction tx, org.apache.activemq.store.kahadb.MessageDatabase.StoredDestination sd, String subscriptionKey)
long	getStoredMessageSize(Transaction tx, org.apache.activemq.store.kahadb.MessageDatabase.StoredDestination sd, String subscriptionKey)
protected MessageStoreStatistics	getStoreStats(String kahaDestKey) Locate the storeMessageSize counter for this KahaDestination
protected MessageStoreSubscriptionStatistics	getSubStats(String kahaDestKey)
String	getTransactions()
void	incrementalRecover()
protected void	incrementAndAddSizeToStoreStat(KahaDestination kahaDestination, long size) Update MessageStoreStatistics
protected void	incrementAndAddSizeToStoreStat(KahaDestination kahaDestination, String subKey, long size)
protected void	incrementAndAddSizeToStoreStat(String kahaDestKey, long size)
protected void	incrementAndAddSizeToStoreStat(String kahaDestKey, String subKey, long size)
boolean	isArchiveCorruptedIndex()
boolean	isArchiveDataLogs()
boolean	isCheckForCorruptJournalFiles()
boolean	isChecksumJournalFiles()
boolean	isCompactAcksIgnoresStoreGrowth() Returns whether Ack compaction will ignore that the store is still growing and run more often.
boolean	isDeleteAllMessages()
boolean	isEnableAckCompaction() Returns whether Ack compaction is enabled
boolean	isEnableIndexDiskSyncs()
boolean	isEnableIndexPageCaching()
boolean	isEnableIndexRecoveryFile()
boolean	isEnableJournalDiskSyncs() Deprecated. use getJournalDiskSyncStrategy() instead
boolean	isEnableSubscriptionStatistics()
boolean	isFailIfDatabaseIsLocked()
boolean	isIgnoreMissingJournalfiles()
boolean	isUseIndexLFRUEviction()
protected String	key(KahaDestination destination)
void	load()
JournalCommand<?>	load(Location location) Loads a previously stored JournalMessage
protected boolean	matchType(Destination destination, KahaDestination.DestinationType type) Determine whether this Destination matches the DestinationType
void	open()
protected void	process(KahaAddMessageCommand command, Location location, org.apache.activemq.store.kahadb.MessageDatabase.IndexAware runWithIndexLock)
protected void	process(KahaCommitCommand command, Location location, org.apache.activemq.store.kahadb.MessageDatabase.IndexAware before)
protected void	process(KahaPrepareCommand command, Location location)
protected void	process(KahaRemoveDestinationCommand command, Location location)
protected void	process(KahaRemoveMessageCommand command, Location location)
protected void	process(KahaRewrittenDataFileCommand command, Location location)
protected void	process(KahaRollbackCommand command, Location location)
protected void	process(KahaSubscriptionCommand command, Location location)
protected void	process(KahaUpdateMessageCommand command, Location location)
protected void	processLocation(Location location)
protected void	recoverIndex(Transaction tx)
void	setArchiveCorruptedIndex(boolean archiveCorruptedIndex)
void	setArchiveDataLogs(boolean archiveDataLogs)
void	setBrokerService(BrokerService brokerService)
void	setCheckForCorruptJournalFiles(boolean checkForCorruptJournalFiles)
void	setCheckpointInterval(long checkpointInterval)
void	setChecksumJournalFiles(boolean checksumJournalFiles)
void	setCleanupInterval(long cleanupInterval)
void	setCompactAcksAfterNoGC(int compactAcksAfterNoGC) Sets the number of GC cycles where no journal logs were removed before an attempt to move forward all the acks in the last log that contains them and is otherwise unreferenced.
void	setCompactAcksIgnoresStoreGrowth(boolean compactAcksIgnoresStoreGrowth) Configure if Ack compaction will occur regardless of continued growth of the journal logs meaning that the store has not run out of space yet.
void	setDeleteAllMessages(boolean deleteAllMessages)
void	setDirectory(File directory)
void	setDirectoryArchive(File directoryArchive)
void	setEnableAckCompaction(boolean enableAckCompaction) Configure if the Ack compaction task should be enabled to run
void	setEnableIndexDiskSyncs(boolean enableIndexDiskSyncs)
void	setEnableIndexPageCaching(boolean enableIndexPageCaching)
void	setEnableIndexRecoveryFile(boolean enableIndexRecoveryFile)
void	setEnableIndexWriteAsync(boolean enableIndexWriteAsync)
void	setEnableJournalDiskSyncs(boolean syncWrites) Deprecated. use setEnableJournalDiskSyncs(boolean) instead
void	setEnableSubscriptionStatistics(boolean enableSubscriptionStatistics) Enable caching statistics for each subscription to allow non-blocking retrieval of metrics.
void	setFailIfDatabaseIsLocked(boolean failIfDatabaseIsLocked)
void	setFailoverProducersAuditDepth(int failoverProducersAuditDepth)
void	setIgnoreMissingJournalfiles(boolean ignoreMissingJournalfiles)
void	setIndexCacheSize(int indexCacheSize)
void	setIndexDirectory(File indexDirectory)
void	setIndexLFUEvictionFactor(float indexLFUEvictionFactor)
void	setIndexWriteBatchSize(int setIndexWriteBatchSize)
void	setJournalDiskSyncInterval(long journalDiskSyncInterval)
void	setJournalDiskSyncStrategy(String journalDiskSyncStrategy)
void	setJournalMaxFileLength(int journalMaxFileLength)
void	setJournalMaxWriteBatchSize(int journalMaxWriteBatchSize)
void	setMaxFailoverProducersToTrack(int maxFailoverProducersToTrack)
void	setPreallocationScope(String preallocationScope)
void	setPreallocationStrategy(String preallocationStrategy)
void	setUseIndexLFRUEviction(boolean useIndexLFRUEviction)
Location	store(JournalCommand<?> data)
Location	store(JournalCommand<?> data, boolean sync, org.apache.activemq.store.kahadb.MessageDatabase.IndexAware before, Runnable after)
Location	store(JournalCommand<?> data, boolean sync, org.apache.activemq.store.kahadb.MessageDatabase.IndexAware before, Runnable after, Runnable onJournalStoreComplete) All updated are are funneled through this method.
Location	store(JournalCommand<?> data, Runnable onJournalStoreComplete)
ByteSequence	toByteSequence(JournalCommand<?> data)
void	trackRecoveredAcks(ArrayList<org.apache.activemq.command.MessageAck> acks)
void	unload()

Methods inherited from class org.apache.activemq.util.ServiceSupport

addServiceListener, dispose, isStarted, isStopped, isStopping, postStop, preStart, removeServiceListener, start, stop

Methods inherited from class java.lang.Object

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

Field Detail

brokerService

protected BrokerService brokerService

PROPERTY_LOG_SLOW_ACCESS_TIME

public static final String PROPERTY_LOG_SLOW_ACCESS_TIME

See Also:

Constant Field Values

LOG_SLOW_ACCESS_TIME

public static final int LOG_SLOW_ACCESS_TIME

DEFAULT_DIRECTORY

public static final File DEFAULT_DIRECTORY

UNMATCHED

protected static final org.apache.activemq.protobuf.Buffer UNMATCHED

pageFile

protected PageFile pageFile

journal

protected Journal journal

metadata

protected MessageDatabase.Metadata metadata

metadataMarshaller

protected org.apache.activemq.store.kahadb.MessageDatabase.MetadataMarshaller metadataMarshaller

failIfDatabaseIsLocked

protected boolean failIfDatabaseIsLocked

deleteAllMessages

protected boolean deleteAllMessages

directory

protected File directory

indexDirectory

protected File indexDirectory

scheduler

protected ScheduledExecutorService scheduler

journalDiskSyncStrategy

protected String journalDiskSyncStrategy

archiveDataLogs

protected boolean archiveDataLogs

directoryArchive

protected File directoryArchive

journalSize

protected AtomicLong journalSize

opened

protected AtomicBoolean opened

forceRecoverIndex

protected boolean forceRecoverIndex

lastAsyncJournalUpdate

protected final AtomicReference<Location> lastAsyncJournalUpdate

indexLock

protected final ReentrantReadWriteLock indexLock

storedDestinations

protected final HashMap<String,org.apache.activemq.store.kahadb.MessageDatabase.StoredDestination> storedDestinations

storeCache

protected final ConcurrentMap<String,MessageStore> storeCache

This is a map to cache MessageStores for a specific KahaDestination key

preparedTransactions

protected final LinkedHashMap<org.apache.activemq.command.TransactionId,List<org.apache.activemq.store.kahadb.MessageDatabase.Operation>> preparedTransactions

ackedAndPrepared

protected final Set<String> ackedAndPrepared

rolledBackAcks

protected final Set<String> rolledBackAcks

Constructor Detail

MessageDatabase

public MessageDatabase()

Method Detail

doStart

public void doStart()
             throws Exception

Specified by:

doStart in class ServiceSupport

Throws:

Exception

doStop

public void doStop(ServiceStopper stopper)
            throws Exception

Specified by:

doStop in class ServiceSupport

Throws:

Exception

open

public void open()
          throws IOException

Throws:

IOException

load

public void load()
          throws IOException

Throws:

IOException

close

public void close()
           throws IOException,
                  InterruptedException

Throws:

IOException

InterruptedException

unload

public void unload()
            throws IOException,
                   InterruptedException

Throws:

IOException

InterruptedException

getInProgressTxLocationRange

public Location[] getInProgressTxLocationRange()

getTransactions

public String getTransactions()

recoverIndex

protected void recoverIndex(Transaction tx)
                     throws IOException

Throws:

IOException

incrementalRecover

public void incrementalRecover()
                        throws IOException

Throws:

IOException

getLastUpdatePosition

public Location getLastUpdatePosition()
                               throws IOException

Throws:

IOException

checkpointCleanup

protected void checkpointCleanup(boolean cleanup)
                          throws IOException

Throws:

IOException

toByteSequence

public ByteSequence toByteSequence(JournalCommand<?> data)
                            throws IOException

Throws:

IOException

store

public Location store(JournalCommand<?> data)
               throws IOException

Throws:

IOException

store

public Location store(JournalCommand<?> data,
             Runnable onJournalStoreComplete)
               throws IOException

Throws:

IOException

store

public Location store(JournalCommand<?> data,
             boolean sync,
             org.apache.activemq.store.kahadb.MessageDatabase.IndexAware before,
             Runnable after)
               throws IOException

Throws:

IOException

store

public Location store(JournalCommand<?> data,
             boolean sync,
             org.apache.activemq.store.kahadb.MessageDatabase.IndexAware before,
             Runnable after,
             Runnable onJournalStoreComplete)
               throws IOException

All updated are are funneled through this method. The updates are converted to a JournalMessage which is logged to the journal and then the data from the JournalMessage is used to update the index just like it would be done during a recovery process.

Throws:

IOException

load

public JournalCommand<?> load(Location location)
                       throws IOException

Loads a previously stored JournalMessage

Parameters:

location -

Returns:

Throws:

IOException

process

protected void process(KahaAddMessageCommand command,
           Location location,
           org.apache.activemq.store.kahadb.MessageDatabase.IndexAware runWithIndexLock)
                throws IOException

Throws:

IOException

process

protected void process(KahaUpdateMessageCommand command,
           Location location)
                throws IOException

Throws:

IOException

process

protected void process(KahaRemoveMessageCommand command,
           Location location)
                throws IOException

Throws:

IOException

process

protected void process(KahaRemoveDestinationCommand command,
           Location location)
                throws IOException

Throws:

IOException

process

protected void process(KahaSubscriptionCommand command,
           Location location)
                throws IOException

Throws:

IOException

processLocation

protected void processLocation(Location location)

process

protected void process(KahaCommitCommand command,
           Location location,
           org.apache.activemq.store.kahadb.MessageDatabase.IndexAware before)
                throws IOException

Throws:

IOException

process

protected void process(KahaPrepareCommand command,
           Location location)

process

protected void process(KahaRollbackCommand command,
           Location location)
                throws IOException

Throws:

IOException

process

protected void process(KahaRewrittenDataFileCommand command,
           Location location)
                throws IOException

Throws:

IOException

getJournalFilesBeingReplicated

public HashSet<Integer> getJournalFilesBeingReplicated()

getStoredDestination

protected org.apache.activemq.store.kahadb.MessageDatabase.StoredDestination getStoredDestination(KahaDestination destination,
                                                                                      Transaction tx)
                                                                                           throws IOException

Throws:

IOException

getExistingStoredDestination

protected org.apache.activemq.store.kahadb.MessageDatabase.StoredDestination getExistingStoredDestination(KahaDestination destination,
                                                                                              Transaction tx)
                                                                                                   throws IOException

Throws:

IOException

clearStoreStats

protected void clearStoreStats(KahaDestination kahaDestination)

Clear the counter for the destination, if one exists.

Parameters:

kahaDestination -

incrementAndAddSizeToStoreStat

protected void incrementAndAddSizeToStoreStat(KahaDestination kahaDestination,
                                  long size)

Update MessageStoreStatistics

Parameters:

kahaDestination -

size -

incrementAndAddSizeToStoreStat

protected void incrementAndAddSizeToStoreStat(String kahaDestKey,
                                  long size)

decrementAndSubSizeToStoreStat

protected void decrementAndSubSizeToStoreStat(KahaDestination kahaDestination,
                                  long size)

decrementAndSubSizeToStoreStat

protected void decrementAndSubSizeToStoreStat(String kahaDestKey,
                                  long size)

incrementAndAddSizeToStoreStat

protected void incrementAndAddSizeToStoreStat(KahaDestination kahaDestination,
                                  String subKey,
                                  long size)

incrementAndAddSizeToStoreStat

protected void incrementAndAddSizeToStoreStat(String kahaDestKey,
                                  String subKey,
                                  long size)

decrementAndSubSizeToStoreStat

protected void decrementAndSubSizeToStoreStat(String kahaDestKey,
                                  String subKey,
                                  long size)

decrementAndSubSizeToStoreStat

protected void decrementAndSubSizeToStoreStat(KahaDestination kahaDestination,
                                  String subKey,
                                  long size)

getStoreStats

protected MessageStoreStatistics getStoreStats(String kahaDestKey)

Locate the storeMessageSize counter for this KahaDestination

Parameters:

kahaDestination -

Returns:

getSubStats

protected MessageStoreSubscriptionStatistics getSubStats(String kahaDestKey)

matchType

protected boolean matchType(Destination destination,
                KahaDestination.DestinationType type)

Determine whether this Destination matches the DestinationType

Parameters:

destination -

type -

Returns:

getLastAck

public org.apache.activemq.store.kahadb.MessageDatabase.LastAck getLastAck(Transaction tx,
                                                                  org.apache.activemq.store.kahadb.MessageDatabase.StoredDestination sd,
                                                                  String subscriptionKey)
                                                                    throws IOException

Throws:

IOException

getStoredMessageCount

public long getStoredMessageCount(Transaction tx,
                         org.apache.activemq.store.kahadb.MessageDatabase.StoredDestination sd,
                         String subscriptionKey)
                           throws IOException

Throws:

IOException

getStoredMessageSize

public long getStoredMessageSize(Transaction tx,
                        org.apache.activemq.store.kahadb.MessageDatabase.StoredDestination sd,
                        String subscriptionKey)
                          throws IOException

Throws:

IOException

key

protected String key(KahaDestination destination)

trackRecoveredAcks

public void trackRecoveredAcks(ArrayList<org.apache.activemq.command.MessageAck> acks)

forgetRecoveredAcks

public void forgetRecoveredAcks(ArrayList<org.apache.activemq.command.MessageAck> acks,
                       boolean rollback)
                         throws IOException

Throws:

IOException

configureMetadata

protected abstract void configureMetadata()

getJournalMaxWriteBatchSize

public int getJournalMaxWriteBatchSize()

setJournalMaxWriteBatchSize

public void setJournalMaxWriteBatchSize(int journalMaxWriteBatchSize)

getDirectory

public File getDirectory()

setDirectory

public void setDirectory(File directory)

isDeleteAllMessages

public boolean isDeleteAllMessages()

setDeleteAllMessages

public void setDeleteAllMessages(boolean deleteAllMessages)

setIndexWriteBatchSize

public void setIndexWriteBatchSize(int setIndexWriteBatchSize)

getIndexWriteBatchSize

public int getIndexWriteBatchSize()

setEnableIndexWriteAsync

public void setEnableIndexWriteAsync(boolean enableIndexWriteAsync)

isEnableJournalDiskSyncs

public boolean isEnableJournalDiskSyncs()

Deprecated. use getJournalDiskSyncStrategy() instead

Returns:

setEnableJournalDiskSyncs

public void setEnableJournalDiskSyncs(boolean syncWrites)

Deprecated. use setEnableJournalDiskSyncs(boolean) instead

Parameters:

syncWrites -

getJournalDiskSyncStrategy

public String getJournalDiskSyncStrategy()

setJournalDiskSyncStrategy

public void setJournalDiskSyncStrategy(String journalDiskSyncStrategy)

getJournalDiskSyncInterval

public long getJournalDiskSyncInterval()

setJournalDiskSyncInterval

public void setJournalDiskSyncInterval(long journalDiskSyncInterval)

getCheckpointInterval

public long getCheckpointInterval()

setCheckpointInterval

public void setCheckpointInterval(long checkpointInterval)

getCleanupInterval

public long getCleanupInterval()

setCleanupInterval

public void setCleanupInterval(long cleanupInterval)

setJournalMaxFileLength

public void setJournalMaxFileLength(int journalMaxFileLength)

getJournalMaxFileLength

public int getJournalMaxFileLength()

setMaxFailoverProducersToTrack

public void setMaxFailoverProducersToTrack(int maxFailoverProducersToTrack)

getMaxFailoverProducersToTrack

public int getMaxFailoverProducersToTrack()

setFailoverProducersAuditDepth

public void setFailoverProducersAuditDepth(int failoverProducersAuditDepth)

getFailoverProducersAuditDepth

public int getFailoverProducersAuditDepth()

getPageFile

public PageFile getPageFile()
                     throws IOException

Throws:

IOException

getJournal

public Journal getJournal()
                   throws IOException

Throws:

IOException

getMetadata

protected MessageDatabase.Metadata getMetadata()

isFailIfDatabaseIsLocked

public boolean isFailIfDatabaseIsLocked()

setFailIfDatabaseIsLocked

public void setFailIfDatabaseIsLocked(boolean failIfDatabaseIsLocked)

isIgnoreMissingJournalfiles

public boolean isIgnoreMissingJournalfiles()

setIgnoreMissingJournalfiles

public void setIgnoreMissingJournalfiles(boolean ignoreMissingJournalfiles)

getIndexCacheSize

public int getIndexCacheSize()

setIndexCacheSize

public void setIndexCacheSize(int indexCacheSize)

isCheckForCorruptJournalFiles

public boolean isCheckForCorruptJournalFiles()

setCheckForCorruptJournalFiles

public void setCheckForCorruptJournalFiles(boolean checkForCorruptJournalFiles)

isChecksumJournalFiles

public boolean isChecksumJournalFiles()

setChecksumJournalFiles

public void setChecksumJournalFiles(boolean checksumJournalFiles)

setBrokerService

public void setBrokerService(BrokerService brokerService)

Specified by:

setBrokerService in interface BrokerServiceAware

isArchiveDataLogs

public boolean isArchiveDataLogs()

Returns:

the archiveDataLogs

setArchiveDataLogs

public void setArchiveDataLogs(boolean archiveDataLogs)

Parameters:

archiveDataLogs - the archiveDataLogs to set

getDirectoryArchive

public File getDirectoryArchive()

Returns:

the directoryArchive

setDirectoryArchive

public void setDirectoryArchive(File directoryArchive)

Parameters:

directoryArchive - the directoryArchive to set

isArchiveCorruptedIndex

public boolean isArchiveCorruptedIndex()

setArchiveCorruptedIndex

public void setArchiveCorruptedIndex(boolean archiveCorruptedIndex)

getIndexLFUEvictionFactor

public float getIndexLFUEvictionFactor()

setIndexLFUEvictionFactor

public void setIndexLFUEvictionFactor(float indexLFUEvictionFactor)

isUseIndexLFRUEviction

public boolean isUseIndexLFRUEviction()

setUseIndexLFRUEviction

public void setUseIndexLFRUEviction(boolean useIndexLFRUEviction)

setEnableIndexDiskSyncs

public void setEnableIndexDiskSyncs(boolean enableIndexDiskSyncs)

setEnableIndexRecoveryFile

public void setEnableIndexRecoveryFile(boolean enableIndexRecoveryFile)

setEnableIndexPageCaching

public void setEnableIndexPageCaching(boolean enableIndexPageCaching)

isEnableIndexDiskSyncs

public boolean isEnableIndexDiskSyncs()

isEnableIndexRecoveryFile

public boolean isEnableIndexRecoveryFile()

isEnableIndexPageCaching

public boolean isEnableIndexPageCaching()

getIndexDirectory

public File getIndexDirectory()

setIndexDirectory

public void setIndexDirectory(File indexDirectory)

getPreallocationScope

public String getPreallocationScope()

setPreallocationScope

public void setPreallocationScope(String preallocationScope)

getPreallocationStrategy

public String getPreallocationStrategy()

setPreallocationStrategy

public void setPreallocationStrategy(String preallocationStrategy)

getCompactAcksAfterNoGC

public int getCompactAcksAfterNoGC()

setCompactAcksAfterNoGC

public void setCompactAcksAfterNoGC(int compactAcksAfterNoGC)

Sets the number of GC cycles where no journal logs were removed before an attempt to move forward all the acks in the last log that contains them and is otherwise unreferenced.

A value of -1 will disable this feature.

Parameters:

compactAcksAfterNoGC - Number of empty GC cycles before we rewrite old ACKS.

isCompactAcksIgnoresStoreGrowth

public boolean isCompactAcksIgnoresStoreGrowth()

Returns whether Ack compaction will ignore that the store is still growing and run more often.

Returns:

the compactAcksIgnoresStoreGrowth current value.

setCompactAcksIgnoresStoreGrowth

public void setCompactAcksIgnoresStoreGrowth(boolean compactAcksIgnoresStoreGrowth)

Configure if Ack compaction will occur regardless of continued growth of the journal logs meaning that the store has not run out of space yet. Because the compaction operation can be costly this value is defaulted to off and the Ack compaction is only done when it seems that the store cannot grow and larger.

Parameters:

compactAcksIgnoresStoreGrowth - the compactAcksIgnoresStoreGrowth to set

isEnableAckCompaction

public boolean isEnableAckCompaction()

Returns whether Ack compaction is enabled

Returns:

enableAckCompaction

setEnableAckCompaction

public void setEnableAckCompaction(boolean enableAckCompaction)

Configure if the Ack compaction task should be enabled to run

Parameters:

enableAckCompaction -

isEnableSubscriptionStatistics

public boolean isEnableSubscriptionStatistics()

Returns:

setEnableSubscriptionStatistics

public void setEnableSubscriptionStatistics(boolean enableSubscriptionStatistics)

Enable caching statistics for each subscription to allow non-blocking retrieval of metrics. This could incur some overhead to compute if there are a lot of subscriptions.

Parameters:

enableSubscriptionStatistics -