org.apache.cassandra.service

Class CacheService

java.lang.Object

org.apache.cassandra.service.CacheService

All Implemented Interfaces:

CacheServiceMBean

public class CacheService
extends java.lang.Object
implements CacheServiceMBean

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	CacheService.CacheType
class	CacheService.KeyCacheSerializer
class	CacheService.RowCacheSerializer

Field Summary

Fields

Modifier and Type	Field and Description
static CacheService	instance
AutoSavingCache<KeyCacheKey,RowIndexEntry>	keyCache
static java.lang.String	MBEAN_NAME
AutoSavingCache<RowCacheKey,IRowCacheEntry>	rowCache

Method Summary

Methods

Modifier and Type	Method and Description
long	getKeyCacheCapacityInBytes()
long	getKeyCacheCapacityInMB()
long	getKeyCacheEntries()
long	getKeyCacheHits()
int	getKeyCacheKeysToSave()
double	getKeyCacheRecentHitRate()
long	getKeyCacheRequests()
int	getKeyCacheSavePeriodInSeconds()
long	getKeyCacheSize()
long	getRowCacheCapacityInBytes()
long	getRowCacheCapacityInMB()
long	getRowCacheEntries()
long	getRowCacheHits()
int	getRowCacheKeysToSave()
double	getRowCacheRecentHitRate()
long	getRowCacheRequests()
int	getRowCacheSavePeriodInSeconds()
long	getRowCacheSize()
void	invalidateKeyCache() invalidate the key cache; for use after invalidating row cache
void	invalidateRowCache() invalidate the row cache; for use after bulk loading via BinaryMemtable
void	saveCaches() save row and key caches
void	setKeyCacheCapacityInMB(long capacity)
void	setKeyCacheKeysToSave(int count)
void	setKeyCacheSavePeriodInSeconds(int seconds)
void	setRowCacheCapacityInMB(long capacity)
void	setRowCacheKeysToSave(int count)
void	setRowCacheSavePeriodInSeconds(int seconds)

Methods inherited from class java.lang.Object

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

Field Detail

MBEAN_NAME

public static final java.lang.String MBEAN_NAME

See Also:

Constant Field Values

instance

public static final CacheService instance

keyCache

public final AutoSavingCache<KeyCacheKey,RowIndexEntry> keyCache

rowCache

public final AutoSavingCache<RowCacheKey,IRowCacheEntry> rowCache

Method Detail

getKeyCacheHits

public long getKeyCacheHits()

Specified by:

getKeyCacheHits in interface CacheServiceMBean

See Also:

CacheMetrics.hits

getRowCacheHits

public long getRowCacheHits()

Specified by:

getRowCacheHits in interface CacheServiceMBean

See Also:

CacheMetrics.hits

getKeyCacheRequests

public long getKeyCacheRequests()

Specified by:

getKeyCacheRequests in interface CacheServiceMBean

See Also:

CacheMetrics.requests

getRowCacheRequests

public long getRowCacheRequests()

Specified by:

getRowCacheRequests in interface CacheServiceMBean

See Also:

CacheMetrics.requests

getKeyCacheRecentHitRate

public double getKeyCacheRecentHitRate()

Specified by:

getKeyCacheRecentHitRate in interface CacheServiceMBean

See Also:

CacheMetrics.hitRate

getRowCacheRecentHitRate

public double getRowCacheRecentHitRate()

Specified by:

getRowCacheRecentHitRate in interface CacheServiceMBean

See Also:

CacheMetrics.hitRate

getRowCacheSavePeriodInSeconds

public int getRowCacheSavePeriodInSeconds()

Specified by:

getRowCacheSavePeriodInSeconds in interface CacheServiceMBean

setRowCacheSavePeriodInSeconds

public void setRowCacheSavePeriodInSeconds(int seconds)

Specified by:

setRowCacheSavePeriodInSeconds in interface CacheServiceMBean

getKeyCacheSavePeriodInSeconds

public int getKeyCacheSavePeriodInSeconds()

Specified by:

getKeyCacheSavePeriodInSeconds in interface CacheServiceMBean

setKeyCacheSavePeriodInSeconds

public void setKeyCacheSavePeriodInSeconds(int seconds)

Specified by:

setKeyCacheSavePeriodInSeconds in interface CacheServiceMBean

getRowCacheKeysToSave

public int getRowCacheKeysToSave()

Specified by:

getRowCacheKeysToSave in interface CacheServiceMBean

setRowCacheKeysToSave

public void setRowCacheKeysToSave(int count)

Specified by:

setRowCacheKeysToSave in interface CacheServiceMBean

getKeyCacheKeysToSave

public int getKeyCacheKeysToSave()

Specified by:

getKeyCacheKeysToSave in interface CacheServiceMBean

setKeyCacheKeysToSave

public void setKeyCacheKeysToSave(int count)

Specified by:

setKeyCacheKeysToSave in interface CacheServiceMBean

invalidateKeyCache

public void invalidateKeyCache()

Description copied from interface: CacheServiceMBean

invalidate the key cache; for use after invalidating row cache

Specified by:

invalidateKeyCache in interface CacheServiceMBean

invalidateRowCache

public void invalidateRowCache()

Description copied from interface: CacheServiceMBean

invalidate the row cache; for use after bulk loading via BinaryMemtable

Specified by:

invalidateRowCache in interface CacheServiceMBean

getRowCacheCapacityInBytes

public long getRowCacheCapacityInBytes()

Specified by:

getRowCacheCapacityInBytes in interface CacheServiceMBean

See Also:

CacheMetrics.capacity

getRowCacheCapacityInMB

public long getRowCacheCapacityInMB()

Specified by:

getRowCacheCapacityInMB in interface CacheServiceMBean

See Also:

CacheMetrics.capacity

setRowCacheCapacityInMB

public void setRowCacheCapacityInMB(long capacity)

Specified by:

setRowCacheCapacityInMB in interface CacheServiceMBean

getKeyCacheCapacityInBytes

public long getKeyCacheCapacityInBytes()

Specified by:

getKeyCacheCapacityInBytes in interface CacheServiceMBean

See Also:

CacheMetrics.capacity

getKeyCacheCapacityInMB

public long getKeyCacheCapacityInMB()

Specified by:

getKeyCacheCapacityInMB in interface CacheServiceMBean

See Also:

CacheMetrics.capacity

setKeyCacheCapacityInMB

public void setKeyCacheCapacityInMB(long capacity)

Specified by:

setKeyCacheCapacityInMB in interface CacheServiceMBean

getRowCacheSize

public long getRowCacheSize()

Specified by:

getRowCacheSize in interface CacheServiceMBean

See Also:

CacheMetrics.size

getRowCacheEntries

public long getRowCacheEntries()

Specified by:

getRowCacheEntries in interface CacheServiceMBean

See Also:

CacheMetrics.entries

getKeyCacheSize

public long getKeyCacheSize()

Specified by:

getKeyCacheSize in interface CacheServiceMBean

See Also:

CacheMetrics.size

getKeyCacheEntries

public long getKeyCacheEntries()

Specified by:

getKeyCacheEntries in interface CacheServiceMBean

See Also:

CacheMetrics.entries

saveCaches

public void saveCaches()
                throws java.util.concurrent.ExecutionException,
                       java.lang.InterruptedException

Description copied from interface: CacheServiceMBean

save row and key caches

Specified by:

saveCaches in interface CacheServiceMBean

Throws:

java.util.concurrent.ExecutionException - when attempting to retrieve the result of a task that aborted by throwing an exception

java.lang.InterruptedException - when a thread is waiting, sleeping, or otherwise occupied, and the thread is interrupted, either before or during the activity.