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

java.lang.Object
  org.apache.hadoop.hdfs.server.namenode.metrics.NameNodeMetrics

@Metrics(name="NameNodeActivity",
         about="NameNode metrics",
         context="dfs")
public class NameNodeMetrics
extends Object

This class is for maintaining the various NameNode activity statistics and publishing them through the metrics interfaces.

Method Summary

void	addBlockReport(long latency)
void	addSync(long elapsed)
void	addTransaction(long latency)
static NameNodeMetrics	create(org.apache.hadoop.conf.Configuration conf, HdfsServerConstants.NamenodeRole r)
void	incrAddBlockOps()
void	incrCreateFileOps()
void	incrCreateSymlinkOps()
void	incrDeleteFileOps()
void	incrFileInfoOps()
void	incrFilesAppended()
void	incrFilesCreated()
void	incrFilesDeleted(int delta)
void	incrFilesInGetListingOps(int delta)
void	incrFilesRenamed()
void	incrGetAdditionalDatanodeOps()
void	incrGetBlockLocations()
void	incrGetLinkTargetOps()
void	incrGetListingOps()
void	incrTransactionsBatchedInSync()
void	setFsImageLoadTime(long elapsed)
void	setSafeModeTime(long elapsed)
void	shutdown()

Methods inherited from class java.lang.Object

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

Method Detail

create

public static NameNodeMetrics create(org.apache.hadoop.conf.Configuration conf,
                                     HdfsServerConstants.NamenodeRole r)

shutdown

public void shutdown()

incrGetBlockLocations

public void incrGetBlockLocations()

incrFilesCreated

public void incrFilesCreated()

incrCreateFileOps

public void incrCreateFileOps()

incrFilesAppended

public void incrFilesAppended()

incrAddBlockOps

public void incrAddBlockOps()

incrGetAdditionalDatanodeOps

public void incrGetAdditionalDatanodeOps()

incrFilesRenamed

public void incrFilesRenamed()

incrFilesDeleted

public void incrFilesDeleted(int delta)

incrDeleteFileOps

public void incrDeleteFileOps()

incrGetListingOps

public void incrGetListingOps()

incrFilesInGetListingOps

public void incrFilesInGetListingOps(int delta)

incrFileInfoOps

public void incrFileInfoOps()

incrCreateSymlinkOps

public void incrCreateSymlinkOps()

incrGetLinkTargetOps

public void incrGetLinkTargetOps()

addTransaction

public void addTransaction(long latency)

incrTransactionsBatchedInSync

public void incrTransactionsBatchedInSync()

addSync

public void addSync(long elapsed)

setFsImageLoadTime

public void setFsImageLoadTime(long elapsed)

addBlockReport

public void addBlockReport(long latency)

setSafeModeTime

public void setSafeModeTime(long elapsed)