Package 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

@Private
@Evolving
public class NamespaceInfo
extends StorageInfo

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

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	NamespaceInfo.Capability

Field Summary

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

clusterID, cTime, layoutVersion, namespaceID, STORAGE_FILE_VERSION, storageType

Constructor Summary

Constructors

Constructor	Description
NamespaceInfo()
NamespaceInfo(int nsID, String clusterID, String bpID, long cT)
NamespaceInfo(int nsID, String clusterID, String bpID, long cT, String buildVersion, String softwareVersion)
NamespaceInfo(int nsID, String clusterID, String bpID, long cT, String buildVersion, String softwareVersion, long capabilities)
NamespaceInfo(int nsID, String clusterID, String bpID, long cT, String buildVersion, String softwareVersion, long capabilities, org.apache.hadoop.ha.HAServiceProtocol.HAServiceState st)
NamespaceInfo(int nsID, String clusterID, String bpID, long cT, org.apache.hadoop.ha.HAServiceProtocol.HAServiceState st)
NamespaceInfo(StorageInfo storage)
NamespaceInfo(StorageInfo storage, org.apache.hadoop.ha.HAServiceProtocol.HAServiceState st)

Method Summary

Modifier and Type	Method	Description
String	getBlockPoolID()
String	getBuildVersion()
long	getCapabilities()
String	getSoftwareVersion()
org.apache.hadoop.ha.HAServiceProtocol.HAServiceState	getState()
boolean	isCapabilitySupported(NamespaceInfo.Capability capability)
void	setBlockPoolID(String blockPoolID)
void	setCapabilities(long capabilities)
void	setClusterID(String clusterID)
void	setState(org.apache.hadoop.ha.HAServiceProtocol.HAServiceState state)
String	toString()
void	validateStorage(NNStorage storage)

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

checkStorageType, getClusterID, getClusterIdFromColonSeparatedString, getCTime, getLayoutVersion, getNamespaceID, getNsIdFromColonSeparatedString, getProperty, getServiceLayoutFeatureMap, getServiceLayoutVersion, readPreviousVersionProperties, readProperties, readPropertiesFile, setClusterId, setcTime, setFieldsFromProperties, setLayoutVersion, setNamespaceID, setServiceLayoutVersion, setStorageInfo, toColonSeparatedString, toMapString, versionSupportsFederation

Methods inherited from class java.lang.Object

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

Constructor Details

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,
 String buildVersion,
 String softwareVersion,
 long capabilities,
 org.apache.hadoop.ha.HAServiceProtocol.HAServiceState st)

NamespaceInfo

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

NamespaceInfo

public NamespaceInfo(StorageInfo storage)

NamespaceInfo

public NamespaceInfo(StorageInfo storage,
 org.apache.hadoop.ha.HAServiceProtocol.HAServiceState st)

NamespaceInfo

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

NamespaceInfo

public NamespaceInfo(int nsID,
 String clusterID,
 String bpID,
 long cT,
 org.apache.hadoop.ha.HAServiceProtocol.HAServiceState st)

Method Details

getCapabilities

public long getCapabilities()

setCapabilities

@VisibleForTesting
public void setCapabilities(long capabilities)

setState

@VisibleForTesting
public void setState(org.apache.hadoop.ha.HAServiceProtocol.HAServiceState state)

isCapabilitySupported

public boolean isCapabilitySupported(NamespaceInfo.Capability capability)

getBuildVersion

public String getBuildVersion()

getBlockPoolID

public String getBlockPoolID()

getSoftwareVersion

public String getSoftwareVersion()

getState

public org.apache.hadoop.ha.HAServiceProtocol.HAServiceState getState()

setClusterID

public void setClusterID(String clusterID)

setBlockPoolID

public void setBlockPoolID(String blockPoolID)

toString

public String toString()

Overrides:

toString in class StorageInfo

validateStorage

public void validateStorage(NNStorage storage)
                     throws IOException

Throws:

IOException