org.apache.hadoop.metrics2.lib
Class MutableTimeHistogram

java.lang.Object
  org.apache.hadoop.metrics2.lib.MutableMetric
      org.apache.hadoop.metrics2.lib.MutableHistogram
          org.apache.hadoop.metrics2.lib.MutableRangeHistogram
              org.apache.hadoop.metrics2.lib.MutableTimeHistogram

All Implemented Interfaces:

MetricHistogram

@InterfaceAudience.Private
public class MutableTimeHistogram
extends MutableRangeHistogram

Extended histogram implementation with counters for metric time ranges.

Field Summary

Fields inherited from class org.apache.hadoop.metrics2.lib.MutableHistogram

desc, name

Fields inherited from interface org.apache.hadoop.metrics2.MetricHistogram

MAX_METRIC_NAME, MEAN_METRIC_NAME, MEDIAN_METRIC_NAME, MIN_METRIC_NAME, NINETIETH_PERCENTILE_METRIC_NAME, NINETY_FIFTH_PERCENTILE_METRIC_NAME, NINETY_NINETH_PERCENTILE_METRIC_NAME, NUM_OPS_METRIC_NAME, SEVENTY_FIFTH_PERCENTILE_METRIC_NAME

Constructor Summary

MutableTimeHistogram(MetricsInfo info)

MutableTimeHistogram(String name, String description)

Method Summary

long[]	getRange() Returns the ranges to be counted
String	getRangeType() Returns the type of range histogram size or time
AtomicLongArray	getRangeVals() Returns the range counts

Methods inherited from class org.apache.hadoop.metrics2.lib.MutableRangeHistogram

add, snapshot, updateSnapshotRangeMetrics

Methods inherited from class org.apache.hadoop.metrics2.lib.MutableHistogram

getMax, getMean, getMin, updateSnapshotMetrics

Methods inherited from class org.apache.hadoop.metrics2.lib.MutableMetric

changed, clearChanged, setChanged, snapshot

Methods inherited from class java.lang.Object

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

Constructor Detail

MutableTimeHistogram

public MutableTimeHistogram(MetricsInfo info)

MutableTimeHistogram

public MutableTimeHistogram(String name,
                            String description)

Method Detail

getRangeType

public String getRangeType()

Description copied from class: MutableRangeHistogram

Returns the type of range histogram size or time

Specified by:

getRangeType in class MutableRangeHistogram

getRange

public long[] getRange()

Description copied from class: MutableRangeHistogram

Returns the ranges to be counted

Specified by:

getRange in class MutableRangeHistogram

getRangeVals

public AtomicLongArray getRangeVals()

Description copied from class: MutableRangeHistogram

Returns the range counts

Specified by:

getRangeVals in class MutableRangeHistogram