Package org.infinispan.stats

Interface ClusterCacheStats

All Superinterfaces:

JsonSerialization, Stats

All Known Implementing Classes:

ClusterCacheStatsImpl

public interface ClusterCacheStats
extends Stats

Similar to Stats but cluster wide.

Since:

7.1

Author:

Vladimir Blagojevic

Field Summary

Fields

Modifier and Type	Field	Description
static final String	OBJECT_NAME

Method Summary

Modifier and Type	Method	Description
long	getActivations()
long	getApproximateEntries()	Returns the approximate number of entries in this cache that exist in memory or persistent storage.
long	getApproximateEntriesInMemory()	The same as Stats.getApproximateEntries(), however passivated entries are not included.
long	getApproximateEntriesUnique()	The same as Stats.getApproximateEntries(), however only entries owned as primary are counted.
long	getCacheLoaderLoads()
long	getCacheLoaderMisses()
double	getHitRatio()
long	getInvalidations()
int	getNumberOfLocksAvailable()
int	getNumberOfLocksHeld()
long	getPassivations()
double	getReadWriteRatio()
long	getStaleStatsThreshold()
long	getStoreWrites()
void	reset()	Reset the collected statistics
void	setStaleStatsThreshold(long threshold)

Methods inherited from interface org.infinispan.stats.Stats

getAverageReadTime, getAverageReadTimeNanos, getAverageRemoveTime, getAverageRemoveTimeNanos, getAverageWriteTime, getAverageWriteTimeNanos, getCurrentNumberOfEntries, getCurrentNumberOfEntriesInMemory, getDataMemoryUsed, getEvictions, getHits, getMisses, getOffHeapMemoryUsed, getRemoveHits, getRemoveMisses, getRequiredMinimumNumberOfNodes, getRetrievals, getStores, getTimeSinceReset, getTimeSinceStart, getTotalNumberOfEntries, reset, setStatisticsEnabled, toJson

Field Details

OBJECT_NAME

static final String OBJECT_NAME

See Also:

• Constant Field Values

Method Details

getReadWriteRatio

double getReadWriteRatio()

Returns:

cluster wide read/writes ratio for the cache

getHitRatio

double getHitRatio()

Returns:

cluster wide total percentage hit/(hit+miss) ratio for this cache

getNumberOfLocksAvailable

int getNumberOfLocksAvailable()

Returns:

the total number of exclusive locks available in the cluster

getNumberOfLocksHeld

int getNumberOfLocksHeld()

Returns:

the total number of exclusive locks held in the cluster

getInvalidations

long getInvalidations()

Returns:

the total number of invalidations in the cluster

getActivations

long getActivations()

Returns:

the total number of activations in the cluster

getPassivations

long getPassivations()

Returns:

the total number of passivations in the cluster

getCacheLoaderLoads

long getCacheLoaderLoads()

Returns:

the total number of persistence load operations in the cluster

getCacheLoaderMisses

long getCacheLoaderMisses()

Returns:

the total number of persistence misses in the cluster

getStoreWrites

long getStoreWrites()

Returns:

the total number of persistence store operations in the cluster

getApproximateEntries

long getApproximateEntries()

Description copied from interface: Stats

Returns the approximate number of entries in this cache that exist in memory or persistent storage. When the cache is configured with distribution, this method only returns the number of entries in the local cache instance. In other words, it does not communicate with other nodes to find out about data stored in the cluster and not available locally.

Specified by:

getApproximateEntries in interface Stats

Returns:

the approximate number of entries. Each owner's copy is counted separately, except entries in shared stores.

getApproximateEntriesInMemory

long getApproximateEntriesInMemory()

Description copied from interface: Stats

The same as Stats.getApproximateEntries(), however passivated entries are not included.

Specified by:

getApproximateEntriesInMemory in interface Stats

Returns:

the approximate number of entries in memory. Each owner's copy is counted separately.

getApproximateEntriesUnique

long getApproximateEntriesUnique()

Description copied from interface: Stats

The same as Stats.getApproximateEntries(), however only entries owned as primary are counted. This is only different from Stats.getApproximateEntries() only in distributed and replicated caches.

Specified by:

getApproximateEntriesUnique in interface Stats

Returns:

the approximate number of unique entries.

getStaleStatsThreshold

long getStaleStatsThreshold()

Returns:

The time in milliseconds, to wait between requests before re-retrieving cluster wide stats

setStaleStatsThreshold

void setStaleStatsThreshold(long threshold)

Parameters:

threshold - the time in milliseconds, to wait between requests before re-retrieving cluster wide stats

reset

void reset()

Reset the collected statistics