NameNodeMetrics (Apache Hadoop HDFS 2.8.4 API)

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

Methods
Modifier and Type	Method and Description
`void`	`addBlockOpsBatched(int count)`
`void`	`addBlockReport(long latency)`
`void`	`addCacheBlockReport(long latency)`
`void`	`addGenerateEDEKTime(long latency)`
`void`	`addGetEdit(long latency)`
`void`	`addGetImage(long latency)`
`void`	`addPutImage(long latency)`
`void`	`addSync(long elapsed)`
`void`	`addTransaction(long latency)`
`void`	`addWarmUpEDEKTime(long latency)`
`static NameNodeMetrics`	`create(org.apache.hadoop.conf.Configuration conf, HdfsServerConstants.NamenodeRole r)`
`org.apache.hadoop.metrics2.source.JvmMetrics`	`getJvmMetrics()`
`void`	`incrAddBlockOps()`
`void`	`incrAllowSnapshotOps()`
`void`	`incrBlockReceivedAndDeletedOps()`
`void`	`incrCreateFileOps()`
`void`	`incrCreateSnapshotOps()`
`void`	`incrCreateSymlinkOps()`
`void`	`incrDeleteFileOps()`
`void`	`incrDeleteSnapshotOps()`
`void`	`incrDisAllowSnapshotOps()`
`void`	`incrFileInfoOps()`
`void`	`incrFilesAppended()`
`void`	`incrFilesCreated()`
`void`	`incrFilesDeleted(long delta)`
`void`	`incrFilesInGetListingOps(int delta)`
`void`	`incrFilesRenamed()`
`void`	`incrFilesTruncated()`
`void`	`incrGetAdditionalDatanodeOps()`
`void`	`incrGetBlockLocations()`
`void`	`incrGetLinkTargetOps()`
`void`	`incrGetListingOps()`
`void`	`incrListSnapshottableDirOps()`
`void`	`incrRenameSnapshotOps()`
`void`	`incrSnapshotDiffReportOps()`
`void`	`incrStorageBlockReportOps()`
`void`	`incrTransactionsBatchedInSync(long count)`
`void`	`setBlockOpsQueued(int size)`
`void`	`setFsImageLoadTime(long elapsed)`
`void`	`setSafeModeTime(long elapsed)`
`void`	`shutdown()`
`long`	`totalFileOps()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

totalFileOps

@Metric(value="Number of file system operations")
public long totalFileOps()

create

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

getJvmMetrics

public org.apache.hadoop.metrics2.source.JvmMetrics getJvmMetrics()

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()
```

incrFilesTruncated
```
public void incrFilesTruncated()
```

incrFilesDeleted

public void incrFilesDeleted(long 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()
```

incrAllowSnapshotOps
```
public void incrAllowSnapshotOps()
```

incrDisAllowSnapshotOps
```
public void incrDisAllowSnapshotOps()
```

incrCreateSnapshotOps
```
public void incrCreateSnapshotOps()
```

incrDeleteSnapshotOps
```
public void incrDeleteSnapshotOps()
```

incrRenameSnapshotOps
```
public void incrRenameSnapshotOps()
```

incrListSnapshottableDirOps

public void incrListSnapshottableDirOps()

incrSnapshotDiffReportOps

public void incrSnapshotDiffReportOps()

incrBlockReceivedAndDeletedOps

public void incrBlockReceivedAndDeletedOps()

incrStorageBlockReportOps

public void incrStorageBlockReportOps()

setBlockOpsQueued

public void setBlockOpsQueued(int size)

addBlockOpsBatched

public void addBlockOpsBatched(int count)

addTransaction

public void addTransaction(long latency)

incrTransactionsBatchedInSync

public void incrTransactionsBatchedInSync(long count)

addSync
```
public void addSync(long elapsed)
```

setFsImageLoadTime

public void setFsImageLoadTime(long elapsed)

addBlockReport

public void addBlockReport(long latency)

addCacheBlockReport

public void addCacheBlockReport(long latency)

setSafeModeTime

public void setSafeModeTime(long elapsed)

addGetEdit
```
public void addGetEdit(long latency)
```

addGetImage

public void addGetImage(long latency)

addPutImage

public void addPutImage(long latency)

addGenerateEDEKTime

public void addGenerateEDEKTime(long latency)

addWarmUpEDEKTime

public void addWarmUpEDEKTime(long latency)

Class NameNodeMetrics

Method Summary

Methods inherited from class java.lang.Object

Method Detail

totalFileOps

create

getJvmMetrics

shutdown

incrGetBlockLocations

incrFilesCreated

incrCreateFileOps

incrFilesAppended

incrAddBlockOps

incrGetAdditionalDatanodeOps

incrFilesRenamed

incrFilesTruncated

incrFilesDeleted

incrDeleteFileOps

incrGetListingOps

incrFilesInGetListingOps

incrFileInfoOps

incrCreateSymlinkOps

incrGetLinkTargetOps

incrAllowSnapshotOps

incrDisAllowSnapshotOps

incrCreateSnapshotOps

incrDeleteSnapshotOps

incrRenameSnapshotOps

incrListSnapshottableDirOps

incrSnapshotDiffReportOps

incrBlockReceivedAndDeletedOps

incrStorageBlockReportOps

setBlockOpsQueued

addBlockOpsBatched

addTransaction

incrTransactionsBatchedInSync

addSync

setFsImageLoadTime

addBlockReport

addCacheBlockReport

setSafeModeTime

addGetEdit

addGetImage

addPutImage

addGenerateEDEKTime

addWarmUpEDEKTime