org.apache.hadoop.hbase.metrics.impl

Class DropwizardMeter

java.lang.Object

org.apache.hadoop.hbase.metrics.impl.DropwizardMeter

All Implemented Interfaces:

Meter, Metric

@InterfaceAudience.Private
public class DropwizardMeter
extends Object
implements Meter

Dropwizard metrics implementation of Meter.

Field Summary

Fields

Modifier and Type	Field and Description
private com.codahale.metrics.Meter	meter

Constructor Summary

Constructors

Constructor and Description
DropwizardMeter()
DropwizardMeter(com.codahale.metrics.Meter meter)

Method Summary

Modifier and Type	Method and Description
long	getCount() Returns the number of events.
double	getFifteenMinuteRate() Returns the fifteen-minute exponentially-weighted moving average rate at which events have occurred since the meter was created.
double	getFiveMinuteRate() Returns the five-minute exponentially-weighted moving average rate at which events have occurred since the meter was created.
double	getMeanRate() Returns the mean rate at which events have occurred since the meter was created.
double	getOneMinuteRate() Returns the one-minute exponentially-weighted moving average rate at which events have occurred since the meter was created.
void	mark() Records one occurrence.
void	mark(long count) Records events occurrences.

Methods inherited from class java.lang.Object

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

Field Detail

meter

private final com.codahale.metrics.Meter meter

Constructor Detail

DropwizardMeter

public DropwizardMeter()

DropwizardMeter

public DropwizardMeter(com.codahale.metrics.Meter meter)

Method Detail

mark

public void mark()

Description copied from interface: Meter

Records one occurrence.

Specified by:

mark in interface Meter

mark

public void mark(long count)

Description copied from interface: Meter

Records events occurrences.

Specified by:

mark in interface Meter

Parameters:

count - Number of occurrences to record.

getCount

public long getCount()

Description copied from interface: Meter

Returns the number of events.

Specified by:

getCount in interface Meter

Returns:

the number of events.

getMeanRate

public double getMeanRate()

Description copied from interface: Meter

Returns the mean rate at which events have occurred since the meter was created.

Specified by:

getMeanRate in interface Meter

Returns:

the mean rate at which events have occurred since the meter was created

getOneMinuteRate

public double getOneMinuteRate()

Description copied from interface: Meter

Returns the one-minute exponentially-weighted moving average rate at which events have occurred since the meter was created.

This rate has the same exponential decay factor as the one-minute load average in the top Unix command.

Specified by:

getOneMinuteRate in interface Meter

Returns:

the one-minute exponentially-weighted moving average rate at which events have occurred since the meter was created

getFiveMinuteRate

public double getFiveMinuteRate()

Description copied from interface: Meter

Returns the five-minute exponentially-weighted moving average rate at which events have occurred since the meter was created.

This rate has the same exponential decay factor as the five-minute load average in the top Unix command.

Specified by:

getFiveMinuteRate in interface Meter

Returns:

the five-minute exponentially-weighted moving average rate at which events have occurred since the meter was created

getFifteenMinuteRate

public double getFifteenMinuteRate()

Description copied from interface: Meter

Returns the fifteen-minute exponentially-weighted moving average rate at which events have occurred since the meter was created.

This rate has the same exponential decay factor as the fifteen-minute load average in the top Unix command.

Specified by:

getFifteenMinuteRate in interface Meter

Returns:

the fifteen-minute exponentially-weighted moving average rate at which events have occurred since the meter was created