org.apache.hadoop.hbase.io.hfile.bucket

Class BucketCacheStats

java.lang.Object

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

org.apache.hadoop.hbase.io.hfile.bucket.BucketCacheStats

@InterfaceAudience.Private
public class BucketCacheStats
extends CacheStats

Class that implements cache metrics for bucket cache.

Field Summary

Fields

Modifier and Type	Field and Description
private LongAdder	ioHitCount
private LongAdder	ioHitTime
private long	lastLogTime
private static long	NANO_TIME

Constructor Summary

Constructors

Constructor and Description
BucketCacheStats()

Method Summary

Modifier and Type	Method and Description
long	getIOHitsPerSecond()
double	getIOTimePerHit()
void	ioHit(long time)
void	reset()
String	toString()

Methods inherited from class org.apache.hadoop.hbase.io.hfile.CacheStats

evict, evicted, evictedPerEviction, failInsert, getAgeAtEvictionSnapshot, getBloomChunkHitCount, getBloomChunkMissCount, getDataHitCount, getDataMissCount, getDeleteFamilyBloomHitCount, getDeleteFamilyBloomMissCount, getEvictedCount, getEvictionCount, getFailedInserts, getFileInfoHitCount, getFileInfoMissCount, getGeneralBloomMetaHitCount, getGeneralBloomMetaMissCount, getHitCachingCount, getHitCachingRatio, getHitCachingRatioPastNPeriods, getHitCount, getHitRatio, getHitRatioPastNPeriods, getIntermediateIndexHitCount, getIntermediateIndexMissCount, getLeafIndexHitCount, getLeafIndexMissCount, getMetaHitCount, getMetaMissCount, getMissCachingCount, getMissCachingRatio, getMissCount, getMissRatio, getPrimaryEvictedCount, getPrimaryHitCount, getPrimaryMissCount, getRequestCachingCount, getRequestCount, getRootIndexHitCount, getRootIndexMissCount, getSumHitCachingCountsPastNPeriods, getSumHitCountsPastNPeriods, getSumRequestCachingCountsPastNPeriods, getSumRequestCountsPastNPeriods, getTrailerHitCount, getTrailerMissCount, hit, miss, rollMetricsPeriod

Methods inherited from class java.lang.Object

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

Field Detail

ioHitCount

private final LongAdder ioHitCount

ioHitTime

private final LongAdder ioHitTime

NANO_TIME

private static final long NANO_TIME

lastLogTime

private long lastLogTime

Constructor Detail

BucketCacheStats

BucketCacheStats()

Method Detail

toString

public String toString()

Overrides:

toString in class CacheStats

ioHit

public void ioHit(long time)

getIOHitsPerSecond

public long getIOHitsPerSecond()

getIOTimePerHit

public double getIOTimePerHit()

reset

public void reset()