Package org.apache.hadoop.hdfs.server.protocol

Class DatanodeRegistration

java.lang.Object

org.apache.hadoop.hdfs.protocol.DatanodeID

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

All Implemented Interfaces:

Comparable<org.apache.hadoop.hdfs.protocol.DatanodeID>, NodeRegistration

@Private
@Evolving
public class DatanodeRegistration
extends org.apache.hadoop.hdfs.protocol.DatanodeID
implements NodeRegistration

DatanodeRegistration class contains all information the name-node needs to identify and verify a data-node when it contacts the name-node. This information is sent by data-node with each communication request.

Field Summary

Fields inherited from class org.apache.hadoop.hdfs.protocol.DatanodeID

EMPTY_ARRAY, EMPTY_DATANODE_ID

Constructor Summary

Constructors

Constructor	Description
DatanodeRegistration(String uuid, DatanodeRegistration dnr)
DatanodeRegistration(org.apache.hadoop.hdfs.protocol.DatanodeID dn, StorageInfo info, ExportedBlockKeys keys, String softwareVersion)

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object to)
String	getAddress()	Get address of the server node.
ExportedBlockKeys	getExportedKeys()
NamespaceInfo	getNamespaceInfo()
String	getRegistrationID()	Get registration ID of the server node.
String	getSoftwareVersion()
StorageInfo	getStorageInfo()
int	getVersion()	Get layout version of the server node.
int	hashCode()
void	setExportedKeys(ExportedBlockKeys keys)
void	setNamespaceInfo(NamespaceInfo nsInfo)
String	toString()

Methods inherited from class org.apache.hadoop.hdfs.protocol.DatanodeID

compareTo, getDatanodeUuid, getDatanodeUuidBytes, getHostName, getHostNameBytes, getInfoAddr, getInfoPort, getInfoSecureAddr, getInfoSecurePort, getIpAddr, getIpAddrBytes, getIpcAddr, getIpcPort, getPeerHostName, getResolvedAddress, getXferAddr, getXferAddr, getXferAddrWithHostname, getXferPort, setIpAddr, setPeerHostName, updateRegInfo

Methods inherited from class java.lang.Object

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

Constructor Details

DatanodeRegistration

@VisibleForTesting
public DatanodeRegistration(String uuid,
 DatanodeRegistration dnr)

DatanodeRegistration

public DatanodeRegistration(org.apache.hadoop.hdfs.protocol.DatanodeID dn,
 StorageInfo info,
 ExportedBlockKeys keys,
 String softwareVersion)

Method Details

getStorageInfo

public StorageInfo getStorageInfo()

setExportedKeys

public void setExportedKeys(ExportedBlockKeys keys)

getExportedKeys

public ExportedBlockKeys getExportedKeys()

getSoftwareVersion

public String getSoftwareVersion()

getVersion

public int getVersion()

Description copied from interface: NodeRegistration

Get layout version of the server node.

Specified by:

getVersion in interface NodeRegistration

setNamespaceInfo

public void setNamespaceInfo(NamespaceInfo nsInfo)

getNamespaceInfo

public NamespaceInfo getNamespaceInfo()

getRegistrationID

public String getRegistrationID()

Description copied from interface: NodeRegistration

Get registration ID of the server node.

Specified by:

getRegistrationID in interface NodeRegistration

getAddress

public String getAddress()

Description copied from interface: NodeRegistration

Get address of the server node.

Specified by:

getAddress in interface NodeRegistration

Returns:

ipAddr:portNumber

toString

public String toString()

Specified by:

toString in interface NodeRegistration

Overrides:

toString in class org.apache.hadoop.hdfs.protocol.DatanodeID

equals

public boolean equals(Object to)

Overrides:

equals in class org.apache.hadoop.hdfs.protocol.DatanodeID

hashCode

public int hashCode()

Overrides:

hashCode in class org.apache.hadoop.hdfs.protocol.DatanodeID