org.apache.hadoop.hbase.io.hfile

Class CacheStats

java.lang.Object

org.apache.hadoop.hbase.io.hfile.CacheStats

Direct Known Subclasses:

BucketCacheStats, CombinedBlockCache.CombinedCacheStats

@InterfaceAudience.Private
public class CacheStats
extends Object

Class that implements cache metrics.

Constructor Summary

Constructors

Constructor and Description
CacheStats(String name)
CacheStats(String name, int numPeriodsInWindow)

Method Summary

Methods

Modifier and Type	Method and Description
void	evict()
void	evicted(long t, boolean primary)
double	evictedPerEviction()
long	failInsert()
AgeSnapshot	getAgeAtEvictionSnapshot()
long	getEvictedCount()
long	getEvictionCount()
long	getFailedInserts()
long	getHitCachingCount()
double	getHitCachingRatio()
double	getHitCachingRatioPastNPeriods()
long	getHitCount()
double	getHitRatio()
double	getHitRatioPastNPeriods()
long	getMissCachingCount()
double	getMissCachingRatio()
long	getMissCount()
double	getMissRatio()
long	getPrimaryEvictedCount()
long	getPrimaryHitCount()
long	getPrimaryMissCount()
long	getRequestCachingCount()
long	getRequestCount()
long	getSumHitCachingCountsPastNPeriods()
long	getSumHitCountsPastNPeriods()
long	getSumRequestCachingCountsPastNPeriods()
long	getSumRequestCountsPastNPeriods()
void	hit(boolean caching)
void	hit(boolean caching, boolean primary)
void	miss(boolean caching, boolean primary)
void	rollMetricsPeriod()
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

CacheStats

public CacheStats(String name)

CacheStats

public CacheStats(String name,
          int numPeriodsInWindow)

Method Detail

toString

public String toString()

Overrides:

toString in class Object

miss

public void miss(boolean caching,
        boolean primary)

hit

public void hit(boolean caching)

hit

public void hit(boolean caching,
       boolean primary)

evict

public void evict()

evicted

public void evicted(long t,
           boolean primary)

failInsert

public long failInsert()

getRequestCount

public long getRequestCount()

getRequestCachingCount

public long getRequestCachingCount()

getMissCount

public long getMissCount()

getPrimaryMissCount

public long getPrimaryMissCount()

getMissCachingCount

public long getMissCachingCount()

getHitCount

public long getHitCount()

getPrimaryHitCount

public long getPrimaryHitCount()

getHitCachingCount

public long getHitCachingCount()

getEvictionCount

public long getEvictionCount()

getEvictedCount

public long getEvictedCount()

getPrimaryEvictedCount

public long getPrimaryEvictedCount()

getHitRatio

public double getHitRatio()

getHitCachingRatio

public double getHitCachingRatio()

getMissRatio

public double getMissRatio()

getMissCachingRatio

public double getMissCachingRatio()

evictedPerEviction

public double evictedPerEviction()

getFailedInserts

public long getFailedInserts()

rollMetricsPeriod

public void rollMetricsPeriod()

getSumHitCountsPastNPeriods

public long getSumHitCountsPastNPeriods()

getSumRequestCountsPastNPeriods

public long getSumRequestCountsPastNPeriods()

getSumHitCachingCountsPastNPeriods

public long getSumHitCachingCountsPastNPeriods()

getSumRequestCachingCountsPastNPeriods

public long getSumRequestCachingCountsPastNPeriods()

getHitRatioPastNPeriods

public double getHitRatioPastNPeriods()

getHitCachingRatioPastNPeriods

public double getHitCachingRatioPastNPeriods()

getAgeAtEvictionSnapshot

public AgeSnapshot getAgeAtEvictionSnapshot()