org.apache.cassandra.metrics
Class LatencyMetrics

java.lang.Object
  org.apache.cassandra.metrics.LatencyMetrics

Direct Known Subclasses:

ClientRequestMetrics

public class LatencyMetrics
extends java.lang.Object

Metrics about latencies

Field Summary

protected MetricNameFactory	factory
protected long	lastLatency
protected long	lastOpCount
com.yammer.metrics.core.Timer	latency Latency
protected java.lang.String	namePrefix
EstimatedHistogram	recentLatencyHistogram Deprecated.
com.yammer.metrics.core.Counter	totalLatency Total latency in micro sec
EstimatedHistogram	totalLatencyHistogram Deprecated.

Constructor Summary

LatencyMetrics(MetricNameFactory factory, java.lang.String namePrefix)
Create LatencyMetrics with given group, type, prefix to append to each metric name, and scope.

LatencyMetrics(java.lang.String group, java.lang.String type, java.lang.String scope)
Create LatencyMetrics with given group, type, and scope.

LatencyMetrics(java.lang.String group, java.lang.String type, java.lang.String namePrefix, java.lang.String scope)
Create LatencyMetrics with given group, type, prefix to append to each metric name, and scope.

Method Summary

void	addMicro(long micros)
void	addNano(long nanos) takes nanoseconds
double	getRecentLatency() Deprecated.
void	release()

Methods inherited from class java.lang.Object

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

Field Detail

latency

public final com.yammer.metrics.core.Timer latency

Latency

totalLatency

public final com.yammer.metrics.core.Counter totalLatency

Total latency in micro sec

factory

protected final MetricNameFactory factory

namePrefix

protected final java.lang.String namePrefix

totalLatencyHistogram

@Deprecated
public final EstimatedHistogram totalLatencyHistogram

Deprecated.

recentLatencyHistogram

@Deprecated
public final EstimatedHistogram recentLatencyHistogram

Deprecated.

lastLatency

protected long lastLatency

lastOpCount

protected long lastOpCount

Constructor Detail

LatencyMetrics

public LatencyMetrics(java.lang.String group,
                      java.lang.String type,
                      java.lang.String scope)

Create LatencyMetrics with given group, type, and scope. Name prefix for each metric will be empty.

Parameters:

group - Group name

type - Type name

scope - Scope

LatencyMetrics

public LatencyMetrics(java.lang.String group,
                      java.lang.String type,
                      java.lang.String namePrefix,
                      java.lang.String scope)

Create LatencyMetrics with given group, type, prefix to append to each metric name, and scope.

Parameters:

group - Group name

type - Type name

namePrefix - Prefix to append to each metric name

scope - Scope of metrics

LatencyMetrics

public LatencyMetrics(MetricNameFactory factory,
                      java.lang.String namePrefix)

Create LatencyMetrics with given group, type, prefix to append to each metric name, and scope.

Parameters:

factory - MetricName factory to use

namePrefix - Prefix to append to each metric name

Method Detail

addNano

public void addNano(long nanos)

takes nanoseconds

addMicro

public void addMicro(long micros)

release

public void release()

getRecentLatency

@Deprecated
public double getRecentLatency()

Deprecated.