Package org.apache.hadoop.hdfs.server.federation.resolver

Interface FederationNamenodeContext

All Known Implementing Classes:

MembershipState, MembershipStatePBImpl

public interface FederationNamenodeContext

Interface for a discovered NN and its current server endpoints.

Method Summary

Modifier and Type	Method	Description
long	getDateModified()	The update date.
java.lang.String	getLifelineAddress()	Get the Lifeline RPC server address of the namenode.
java.lang.String	getNamenodeId()	Identifier for the namenode.
java.lang.String	getNamenodeKey()	Get the unique key representing the namenode.
java.lang.String	getNameserviceId()	Identifier for the nameservice/namespace.
java.lang.String	getRpcAddress()	Get the RPC server address of the namenode.
java.lang.String	getServiceAddress()	Get the Service RPC server address of the namenode.
FederationNamenodeServiceState	getState()	The current state of the namenode (active, standby, etc).
java.lang.String	getWebAddress()	Get the HTTP(s) server address of the namenode.
java.lang.String	getWebScheme()	Get the Scheme of web address of the namenode.

Method Detail

getRpcAddress

java.lang.String getRpcAddress()

Get the RPC server address of the namenode.

Returns:

RPC server address in the form of host:port.

getServiceAddress

java.lang.String getServiceAddress()

Get the Service RPC server address of the namenode.

Returns:

Service RPC server address in the form of host:port.

getLifelineAddress

java.lang.String getLifelineAddress()

Get the Lifeline RPC server address of the namenode.

Returns:

Lifeline RPC server address in the form of host:port.

getWebScheme

java.lang.String getWebScheme()

Get the Scheme of web address of the namenode.

Returns:

Scheme of web address (HTTP/HTTPS).

getWebAddress

java.lang.String getWebAddress()

Get the HTTP(s) server address of the namenode.

Returns:

HTTP(s) address in the form of host:port.

getNamenodeKey

java.lang.String getNamenodeKey()

Get the unique key representing the namenode.

Returns:

Combination of the nameservice and the namenode IDs.

getNameserviceId

java.lang.String getNameserviceId()

Identifier for the nameservice/namespace.

Returns:

Namenode nameservice identifier.

getNamenodeId

java.lang.String getNamenodeId()

Identifier for the namenode.

Returns:

String

getState

FederationNamenodeServiceState getState()

The current state of the namenode (active, standby, etc).

Returns:

FederationNamenodeServiceState State of the namenode.

getDateModified

long getDateModified()

The update date.

Returns:

Long with the update date.