Package org.apache.ignite.internal.processors.cache.persistence.diagnostic.pagelocktracker

Class PageLockTrackerManager

java.lang.Object

org.apache.ignite.internal.processors.cache.persistence.diagnostic.pagelocktracker.PageLockTrackerManager

All Implemented Interfaces:

LifecycleAware

public class PageLockTrackerManager
extends Object
implements LifecycleAware

Page lock manager.

Field Summary

Fields

Modifier and Type	Field	Description
static PageLockListener	NOOP_LSNR	No-op page lock listener.

Constructor Summary

Constructors

Constructor	Description
PageLockTrackerManager(IgniteLogger log)	Default constructor.
PageLockTrackerManager(IgniteLogger log, String managerNameId)

Method Summary

Modifier and Type	Method	Description
PageLockListener	createPageLockTracker(String name)
SharedPageLockTrackerDump	dumpLocks()	Creates a page lock dump.
String	dumpLocksToFile()	Take page locks dump and save to file.
String	dumpLocksToFile(String path)	Take page locks dump and save to file for specific path.
void	dumpLocksToLog()	Take page locks dump and print it to console.
String	dumpLocksToString()	Take page locks dump.
long	getHeapOverhead()
long	getOffHeapOverhead()
long	getTotalOverhead()
PageLockTrackerMXBean	mxBean()	Getter.
void	start()	Starts grid component, called on grid start.
void	stop()	Stops grid component, called on grid shutdown.

Methods inherited from class java.lang.Object

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

Field Detail

NOOP_LSNR

public static final PageLockListener NOOP_LSNR

No-op page lock listener.

Constructor Detail

PageLockTrackerManager

public PageLockTrackerManager(IgniteLogger log)

Default constructor.

PageLockTrackerManager

public PageLockTrackerManager(IgniteLogger log,
                              String managerNameId)

Parameters:

log - Ignite logger.

managerNameId - Manager name.

Method Detail

createPageLockTracker

public PageLockListener createPageLockTracker(String name)

Parameters:

name - Lock tracker name.

Returns:

Instance of PageLockListener for tracking lock/unlock operations.

dumpLocks

public SharedPageLockTrackerDump dumpLocks()

Creates a page lock dump.

dumpLocksToString

public String dumpLocksToString()

Take page locks dump.

Returns:

String representation of page locks dump.

dumpLocksToLog

public void dumpLocksToLog()

Take page locks dump and print it to console.

dumpLocksToFile

public String dumpLocksToFile()

Take page locks dump and save to file.

Returns:

Absolute file path.

dumpLocksToFile

public String dumpLocksToFile(String path)

Take page locks dump and save to file for specific path.

Parameters:

path - Path to save file.

Returns:

Absolute file path.

mxBean

public PageLockTrackerMXBean mxBean()

Getter.

Returns:

PageLockTrackerMXBean object.

getHeapOverhead

public long getHeapOverhead()

Returns:

Total heap overhead in bytes.

getOffHeapOverhead

public long getOffHeapOverhead()

Returns:

Total offheap overhead in bytes.

getTotalOverhead

public long getTotalOverhead()

Returns:

Total overhead in bytes.

start

public void start()
           throws IgniteException

Starts grid component, called on grid start.

Specified by:

start in interface LifecycleAware

Throws:

IgniteException - If failed.

stop

public void stop()
          throws IgniteException

Stops grid component, called on grid shutdown.

Specified by:

stop in interface LifecycleAware

Throws:

IgniteException - If failed.