org.apache.hadoop.metrics.util

类 MetricsTimeVaryingRate

java.lang.Object

org.apache.hadoop.metrics.util.MetricsBase

org.apache.hadoop.metrics.util.MetricsTimeVaryingRate

已过时。

in favor of MetricMutableGauge.

@Deprecated
@InterfaceAudience.LimitedPrivate(value={"HDFS","MapReduce"})
public class MetricsTimeVaryingRate
extends MetricsBase

The MetricsTimeVaryingRate class is for a rate based metric that naturally varies over time (e.g. time taken to create a file). The rate is averaged at each interval heart beat (the interval is set in the metrics config file). This class also keeps track of the min and max rates along with a method to reset the min-max.

字段概要

从类继承的字段 org.apache.hadoop.metrics.util.MetricsBase

NO_DESCRIPTION

构造器概要

构造器

构造器和说明
MetricsTimeVaryingRate(String nam, MetricsRegistry registry) 已过时。 Constructor - create a new metric
MetricsTimeVaryingRate(String nam, MetricsRegistry registry, String description) 已过时。 Constructor - create a new metric

方法概要

方法

限定符和类型	方法和说明
long	getMaxTime() 已过时。 The max time for a single operation since the last reset resetMinMax()
long	getMinTime() 已过时。 The min time for a single operation since the last reset resetMinMax()
long	getPreviousIntervalAverageTime() 已过时。 The average rate of an operation in the previous interval
int	getPreviousIntervalNumOps() 已过时。 The number of operations in the previous interval
void	inc(int numOps, long time) 已过时。 Increment the metrics for numOps operations
void	inc(long time) 已过时。 Increment the metrics for one operation
void	pushMetric(MetricsRecord mr) 已过时。 Push the delta metrics to the mr.
void	resetMinMax() 已过时。 Reset the min max values

从类继承的方法 org.apache.hadoop.metrics.util.MetricsBase

getDescription, getName

从类继承的方法 java.lang.Object

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

构造器详细资料

MetricsTimeVaryingRate

public MetricsTimeVaryingRate(String nam,
                      MetricsRegistry registry,
                      String description)

已过时。

Constructor - create a new metric

参数:

nam - the name of the metrics to be used to publish the metric

registry - - where the metrics object will be registered

MetricsTimeVaryingRate

public MetricsTimeVaryingRate(String nam,
                      MetricsRegistry registry)

已过时。

Constructor - create a new metric

参数:

nam - the name of the metrics to be used to publish the metric

registry - - where the metrics object will be registered A description of MetricsBase.NO_DESCRIPTION is used

方法详细资料

inc

public void inc(int numOps,
       long time)

已过时。

Increment the metrics for numOps operations

参数:

numOps - - number of operations

time - - time for numOps operations

inc

public void inc(long time)

已过时。

Increment the metrics for one operation

参数:

time - for one operation

pushMetric

public void pushMetric(MetricsRecord mr)

已过时。

Push the delta metrics to the mr. The delta is since the last push/interval. Note this does NOT push to JMX (JMX gets the info via getPreviousIntervalAverageTime() and getPreviousIntervalNumOps()

指定者:

pushMetric 在类中 MetricsBase

参数:

mr -

getPreviousIntervalNumOps

public int getPreviousIntervalNumOps()

已过时。

The number of operations in the previous interval

返回:

- ops in prev interval

getPreviousIntervalAverageTime

public long getPreviousIntervalAverageTime()

已过时。

The average rate of an operation in the previous interval

返回:

- the average rate.

getMinTime

public long getMinTime()

已过时。

The min time for a single operation since the last reset resetMinMax()

返回:

min time for an operation

getMaxTime

public long getMaxTime()

已过时。

The max time for a single operation since the last reset resetMinMax()

返回:

max time for an operation

resetMinMax

public void resetMinMax()

已过时。

Reset the min max values