org.apache.hadoop.metrics.util

类 MetricsLongValue

java.lang.Object

org.apache.hadoop.metrics.util.MetricsBase

org.apache.hadoop.metrics.util.MetricsLongValue

已过时。

in favor of org.apache.hadoop.metrics2 usage.

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

The MetricsLongValue class is for a metric that is not time varied but changes only when it is set. Each time its value is set, it is published only *once* at the next update call.

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
MetricsLongValue(String nam, MetricsRegistry registry) 已过时。 Constructor - create a new metric
MetricsLongValue(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	get() 已过时。 Get value
void	pushMetric(MetricsRecord mr) 已过时。 Push the metric to the mr.
void	set(long newValue) 已过时。 Set the value

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

MetricsLongValue

public MetricsLongValue(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

MetricsLongValue

public MetricsLongValue(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

set

public void set(long newValue)

已过时。

Set the value

参数:

newValue -

get

public long get()

已过时。

Get value

返回:

the value last set

pushMetric

public void pushMetric(MetricsRecord mr)

已过时。

Push the metric to the mr. The metric is pushed only if it was updated since last push Note this does NOT push to JMX (JMX gets the info via get()

指定者:

pushMetric 在类中 MetricsBase

参数:

mr -