org.apache.hadoop.metrics2.lib

类 MutableHistogram

java.lang.Object

org.apache.hadoop.metrics2.lib.MutableMetric

org.apache.hadoop.metrics2.lib.MutableHistogram

所有已实现的接口:

MetricHistogram

直接已知子类:

MutableRangeHistogram

@InterfaceAudience.Private
public class MutableHistogram
extends org.apache.hadoop.metrics2.lib.MutableMetric
implements MetricHistogram

A histogram implementation that runs in constant space, and exports to hadoop2's metrics2 system.

字段概要

字段

限定符和类型	字段和说明
protected String	desc
protected HistogramImpl	histogram
protected String	name

从接口继承的字段 org.apache.hadoop.metrics2.MetricHistogram

MAX_METRIC_NAME, MEAN_METRIC_NAME, MEDIAN_METRIC_NAME, MIN_METRIC_NAME, NINETIETH_PERCENTILE_METRIC_NAME, NINETY_EIGHTH_PERCENTILE_METRIC_NAME, NINETY_FIFTH_PERCENTILE_METRIC_NAME, NINETY_NINE_POINT_NINETH_PERCENTILE_METRIC_NAME, NINETY_NINETH_PERCENTILE_METRIC_NAME, NUM_OPS_METRIC_NAME, SEVENTY_FIFTH_PERCENTILE_METRIC_NAME, TWENTY_FIFTH_PERCENTILE_METRIC_NAME

构造器概要

构造器

构造器和说明
MutableHistogram(MetricsInfo info)
MutableHistogram(String name, String description)

方法概要

限定符和类型	方法和说明
void	add(long val)
long	getMax()
void	snapshot(MetricsRecordBuilder metricsRecordBuilder, boolean all)
static void	snapshot(String name, String desc, Histogram histogram, MetricsRecordBuilder metricsRecordBuilder, boolean all)
protected static void	updateSnapshotMetrics(String name, String desc, Histogram histogram, Snapshot snapshot, MetricsRecordBuilder metricsRecordBuilder)

从类继承的方法 org.apache.hadoop.metrics2.lib.MutableMetric

changed, clearChanged, setChanged, snapshot

从类继承的方法 java.lang.Object

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

字段详细资料

histogram

protected HistogramImpl histogram

name

protected final String name

desc

protected final String desc

构造器详细资料

MutableHistogram

public MutableHistogram(MetricsInfo info)

MutableHistogram

public MutableHistogram(String name,
                        String description)

方法详细资料

add

public void add(long val)

指定者:

add 在接口中 MetricHistogram

getMax

public long getMax()

snapshot

public void snapshot(MetricsRecordBuilder metricsRecordBuilder,
                     boolean all)

指定者:

snapshot 在类中 org.apache.hadoop.metrics2.lib.MutableMetric

snapshot

public static void snapshot(String name,
                            String desc,
                            Histogram histogram,
                            MetricsRecordBuilder metricsRecordBuilder,
                            boolean all)

updateSnapshotMetrics

protected static void updateSnapshotMetrics(String name,
                                            String desc,
                                            Histogram histogram,
                                            Snapshot snapshot,
                                            MetricsRecordBuilder metricsRecordBuilder)