org.apache.hadoop.hdfs.server.protocol

类 DatanodeRegistration

java.lang.Object

org.apache.hadoop.hdfs.protocol.DatanodeID

org.apache.hadoop.hdfs.server.protocol.DatanodeRegistration

所有已实现的接口:

Comparable<DatanodeID>, Writable, WritableComparable<DatanodeID>

public class DatanodeRegistration
extends DatanodeID
implements Writable

DatanodeRegistration class conatins all information the Namenode needs to identify and verify a Datanode when it contacts the Namenode. This information is sent by Datanode with each communication request.

字段概要

字段

限定符和类型	字段和说明
ExportedBlockKeys	exportedKeys
StorageInfo	storageInfo

从类继承的字段 org.apache.hadoop.hdfs.protocol.DatanodeID

EMPTY_ARRAY, infoPort, ipcPort, name, storageID

构造器概要

构造器

构造器和说明
DatanodeRegistration() Default constructor.
DatanodeRegistration(String nodeName) Create DatanodeRegistration

方法概要

方法

限定符和类型	方法和说明
String	getRegistrationID()
int	getVersion()
void	readFields(DataInput in) Deserialize the fields of this object from in.
void	setInfoPort(int infoPort)
void	setIpcPort(int ipcPort)
void	setName(String name)
void	setStorageInfo(DataStorage storage)
String	toString()
void	write(DataOutput out) Serialize the fields of this object to out.

从类继承的方法 org.apache.hadoop.hdfs.protocol.DatanodeID

compareTo, equals, getHost, getInfoPort, getIpcPort, getName, getPort, getStorageID, hashCode, setStorageID, updateRegInfo

从类继承的方法 java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

字段详细资料

storageInfo

public StorageInfo storageInfo

exportedKeys

public ExportedBlockKeys exportedKeys

构造器详细资料

DatanodeRegistration

public DatanodeRegistration()

Default constructor.

DatanodeRegistration

public DatanodeRegistration(String nodeName)

Create DatanodeRegistration

方法详细资料

setInfoPort

public void setInfoPort(int infoPort)

setIpcPort

public void setIpcPort(int ipcPort)

setStorageInfo

public void setStorageInfo(DataStorage storage)

setName

public void setName(String name)

getVersion

public int getVersion()

getRegistrationID

public String getRegistrationID()

toString

public String toString()

覆盖:

toString 在类中 DatanodeID

write

public void write(DataOutput out)
           throws IOException

Serialize the fields of this object to out.

指定者:

write 在接口中 Writable

覆盖:

write 在类中 DatanodeID

参数:

out - DataOuput to serialize this object into.

抛出:

IOException

readFields

public void readFields(DataInput in)
                throws IOException

Deserialize the fields of this object from in.

For efficiency, implementations should attempt to re-use storage in the existing object where possible.

指定者:

readFields 在接口中 Writable

覆盖:

readFields 在类中 DatanodeID

参数:

in - DataInput to deseriablize this object from.

抛出:

IOException