org.apache.hadoop.metrics.spi

类 NoEmitMetricsContext

java.lang.Object

org.apache.hadoop.metrics.spi.AbstractMetricsContext

org.apache.hadoop.metrics.spi.NoEmitMetricsContext

所有已实现的接口:

MetricsContext

已过时。

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

@Deprecated
@InterfaceAudience.Public
@InterfaceStability.Evolving
public class NoEmitMetricsContext
extends AbstractMetricsContext

A MetricsContext that does not emit data, but, unlike NullContextWithUpdate, does save it for retrieval with getAllRecords(). This is useful if you want to support MetricsServlet, but not emit metrics in any other way.

嵌套类概要

从类继承的嵌套类/接口 org.apache.hadoop.metrics.spi.AbstractMetricsContext

AbstractMetricsContext.MetricMap, AbstractMetricsContext.TagMap

字段概要

从接口继承的字段 org.apache.hadoop.metrics.MetricsContext

DEFAULT_PERIOD

构造器概要

构造器

构造器和说明
NoEmitMetricsContext() 已过时。 Creates a new instance of NullContextWithUpdateThread

方法概要

方法

限定符和类型	方法和说明
protected void	emitRecord(String contextName, String recordName, OutputRecord outRec) 已过时。 Do-nothing version of emitRecord
void	init(String contextName, ContextFactory factory) 已过时。 Initializes the context.

从类继承的方法 org.apache.hadoop.metrics.spi.AbstractMetricsContext

close, createRecord, flush, getAllRecords, getAttribute, getAttributeTable, getContextFactory, getContextName, getPeriod, isMonitoring, newRecord, parseAndSetPeriod, registerUpdater, remove, setPeriod, startMonitoring, stopMonitoring, unregisterUpdater, update

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

NoEmitMetricsContext

@InterfaceAudience.Private
public NoEmitMetricsContext()

已过时。

Creates a new instance of NullContextWithUpdateThread

方法详细资料

init

@InterfaceAudience.Private
public void init(String contextName,
                                  ContextFactory factory)

已过时。

从类复制的说明: AbstractMetricsContext

Initializes the context.

指定者:

init 在接口中 MetricsContext

覆盖:

init 在类中 AbstractMetricsContext

参数:

contextName - The given name for this context

factory - The creator of this context

emitRecord

@InterfaceAudience.Private
protected void emitRecord(String contextName,
                                        String recordName,
                                        OutputRecord outRec)

已过时。

Do-nothing version of emitRecord

指定者:

emitRecord 在类中 AbstractMetricsContext