org.apache.hadoop.hdfs.server.protocol

Class NamespaceInfo

java.lang.Object

org.apache.hadoop.hdfs.server.common.StorageInfo

org.apache.hadoop.hdfs.server.protocol.NamespaceInfo

@InterfaceAudience.Private
@InterfaceStability.Evolving
public class NamespaceInfo
extends StorageInfo

NamespaceInfo is returned by the name-node in reply to a data-node handshake.

Field Summary

Fields inherited from class org.apache.hadoop.hdfs.server.common.StorageInfo

clusterID, cTime, layoutVersion, namespaceID

Constructor Summary

Constructors

Constructor and Description
NamespaceInfo()
NamespaceInfo(int nsID, String clusterID, String bpID, long cT)
NamespaceInfo(int nsID, String clusterID, String bpID, long cT, String buildVersion, String softwareVersion)

Method Summary

Methods

Modifier and Type	Method and Description
String	getBlockPoolID()
String	getBuildVersion()
String	getSoftwareVersion()
String	toString()
void	validateStorage(NNStorage storage)

Methods inherited from class org.apache.hadoop.hdfs.server.common.StorageInfo

getClusterID, getCTime, getLayoutVersion, getNamespaceID, setStorageInfo, toColonSeparatedString, versionSupportsFederation

Methods inherited from class java.lang.Object

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

Constructor Detail

NamespaceInfo

public NamespaceInfo()

NamespaceInfo

public NamespaceInfo(int nsID,
             String clusterID,
             String bpID,
             long cT,
             String buildVersion,
             String softwareVersion)

NamespaceInfo

public NamespaceInfo(int nsID,
             String clusterID,
             String bpID,
             long cT)

Method Detail

getBuildVersion

public String getBuildVersion()

getBlockPoolID

public String getBlockPoolID()

getSoftwareVersion

public String getSoftwareVersion()

toString

public String toString()

Overrides:

toString in class StorageInfo

validateStorage

public void validateStorage(NNStorage storage)
                     throws IOException

Throws:

IOException