org.apache.bookkeeper.stats.prometheus

Class DataSketchesOpStatsLogger

java.lang.Object

org.apache.bookkeeper.stats.prometheus.DataSketchesOpStatsLogger

All Implemented Interfaces:

OpStatsLogger

public class DataSketchesOpStatsLogger
extends java.lang.Object
implements OpStatsLogger

OpStatsLogger implementation that uses DataSketches library to calculate the approximated latency quantiles.

Constructor Summary

Constructors

Constructor and Description
DataSketchesOpStatsLogger()

Method Summary

Modifier and Type	Method and Description
void	clear() Clear stats for this operation.
long	getCount(boolean success)
double	getQuantileValue(boolean success, double quantile)
long	getSum(boolean success)
void	registerFailedEvent(long eventLatency, java.util.concurrent.TimeUnit unit) Increment the failed op counter with the given eventLatency.
void	registerFailedValue(long value) An operation with the given value failed.
void	registerSuccessfulEvent(long eventLatency, java.util.concurrent.TimeUnit unit) An operation succeeded with the given eventLatency.
void	registerSuccessfulValue(long value) An operation with the given value succeeded.
void	rotateLatencyCollection()
OpStatsData	toOpStatsData()

Methods inherited from class java.lang.Object

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

Constructor Detail

DataSketchesOpStatsLogger

DataSketchesOpStatsLogger()

Method Detail

registerFailedEvent

public void registerFailedEvent(long eventLatency,
                                java.util.concurrent.TimeUnit unit)

Description copied from interface: OpStatsLogger

Increment the failed op counter with the given eventLatency.

Specified by:

registerFailedEvent in interface OpStatsLogger

Parameters:

eventLatency - The event latency

registerSuccessfulEvent

public void registerSuccessfulEvent(long eventLatency,
                                    java.util.concurrent.TimeUnit unit)

Description copied from interface: OpStatsLogger

An operation succeeded with the given eventLatency. Update stats to reflect the same

Specified by:

registerSuccessfulEvent in interface OpStatsLogger

Parameters:

eventLatency - The event latency

registerSuccessfulValue

public void registerSuccessfulValue(long value)

Description copied from interface: OpStatsLogger

An operation with the given value succeeded.

Specified by:

registerSuccessfulValue in interface OpStatsLogger

registerFailedValue

public void registerFailedValue(long value)

Description copied from interface: OpStatsLogger

An operation with the given value failed.

Specified by:

registerFailedValue in interface OpStatsLogger

toOpStatsData

public OpStatsData toOpStatsData()

Specified by:

toOpStatsData in interface OpStatsLogger

Returns:

Returns an OpStatsData object with necessary values. We need this function to support JMX exports. This should be deprecated sometime in the near future. populated.

clear

public void clear()

Description copied from interface: OpStatsLogger

Clear stats for this operation.

Specified by:

clear in interface OpStatsLogger

rotateLatencyCollection

public void rotateLatencyCollection()

getCount

public long getCount(boolean success)

getSum

public long getSum(boolean success)

getQuantileValue

public double getQuantileValue(boolean success,
                               double quantile)