Package org.apache.hadoop.yarn.api.records

Class NMToken

java.lang.Object

org.apache.hadoop.yarn.api.records.NMToken

@Public
@Stable
public abstract class NMToken
extends Object

The NMToken is used for authenticating communication with NodeManager

It is issued by ResourceMananger when ApplicationMaster negotiates resource with ResourceManager and validated on NodeManager side.

See Also:

• AllocateResponse.getNMTokens()

Constructor Summary

Constructors

Constructor	Description
NMToken()

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object obj)
abstract NodeId	getNodeId()	Get the NodeId of the NodeManager for which the NMToken is used to authenticate.
abstract Token	getToken()	Get the Token used for authenticating with NodeManager
int	hashCode()
static NMToken	newInstance(NodeId nodeId, Token token)
abstract void	setNodeId(NodeId nodeId)
abstract void	setToken(Token token)

Methods inherited from class java.lang.Object

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

Constructor Details

NMToken

public NMToken()

Method Details

newInstance

@Private
@Unstable
public static NMToken newInstance(NodeId nodeId,
 Token token)

getNodeId

@Public
@Stable
public abstract NodeId getNodeId()

Get the NodeId of the NodeManager for which the NMToken is used to authenticate.

Returns:

the NodeId of the NodeManager for which the NMToken is used to authenticate.

setNodeId

@Public
@Stable
public abstract void setNodeId(NodeId nodeId)

getToken

@Public
@Stable
public abstract Token getToken()

Get the Token used for authenticating with NodeManager

Returns:

the Token used for authenticating with NodeManager

setToken

@Public
@Stable
public abstract void setToken(Token token)

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object