org.apache.hadoop.hdfs.server.namenode.metrics

类 NameNodeInstrumentation

java.lang.Object

org.apache.hadoop.hdfs.server.namenode.metrics.NameNodeInstrumentation

所有已实现的接口:

MetricsSource

public class NameNodeInstrumentation
extends Object
implements MetricsSource

方法概要

方法

限定符和类型	方法和说明
void	addBlockReport(long latency)
void	addSync(long elapsed)
void	addTransaction(long latency)
static NameNodeInstrumentation	create(Configuration conf)
static NameNodeInstrumentation	create(Configuration conf, MetricsSystem ms) Create a v2 metrics instrumentation
void	getMetrics(MetricsBuilder builder, boolean all) Get metrics from the source
void	incrFilesDeleted(int delta)
void	incrNumAddBlockOps()
void	incrNumCreateFileOps()
void	incrNumDeleteFileOps()
void	incrNumFileInfoOps()
void	incrNumFilesAppended()
void	incrNumFilesCreated()
void	incrNumFilesInGetListingOps(int delta)
void	incrNumFilesRenamed()
void	incrNumGetBlockLocations()
void	incrNumGetListingOps()
void	incrTransactionsBatchedInSync()
void	setFsImageLoadTime(long elapsed)
void	setSafeModeTime(long elapsed)
void	shutdown()

从类继承的方法 java.lang.Object

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

方法详细资料

create

public static NameNodeInstrumentation create(Configuration conf)

create

public static NameNodeInstrumentation create(Configuration conf,
                             MetricsSystem ms)

Create a v2 metrics instrumentation

参数:

conf - the configuration object

ms - the metrics system instance

返回:

a metrics

shutdown

public void shutdown()

incrNumGetBlockLocations

public final void incrNumGetBlockLocations()

incrNumFilesCreated

public final void incrNumFilesCreated()

incrNumCreateFileOps

public final void incrNumCreateFileOps()

incrNumFilesAppended

public final void incrNumFilesAppended()

incrNumAddBlockOps

public final void incrNumAddBlockOps()

incrNumFilesRenamed

public final void incrNumFilesRenamed()

incrFilesDeleted

public void incrFilesDeleted(int delta)

incrNumDeleteFileOps

public final void incrNumDeleteFileOps()

incrNumGetListingOps

public final void incrNumGetListingOps()

incrNumFilesInGetListingOps

public final void incrNumFilesInGetListingOps(int delta)

incrNumFileInfoOps

public final void incrNumFileInfoOps()

addTransaction

public final void addTransaction(long latency)

incrTransactionsBatchedInSync

public final void incrTransactionsBatchedInSync()

addSync

public final void addSync(long elapsed)

setFsImageLoadTime

public final void setFsImageLoadTime(long elapsed)

addBlockReport

public final void addBlockReport(long latency)

setSafeModeTime

public final void setSafeModeTime(long elapsed)

getMetrics

public void getMetrics(MetricsBuilder builder,
              boolean all)

从接口复制的说明: MetricsSource

Get metrics from the source

指定者:

getMetrics 在接口中 MetricsSource

参数:

builder - to contain the resulting metrics snapshot

all - if true, return all metrics even if unchanged.