org.apache.hadoop.yarn.api.records
Interface ContainerToken


@InterfaceAudience.Public
@InterfaceStability.Stable
public interface ContainerToken

ContainerToken is the security token used by the framework to verify authenticity of any Container.

The ResourceManager, on container allocation provides a secure token which is verified by the NodeManager on container launch.

Applications do not need to care about ContainerToken, they are transparently handled by the framework - the allocated Container includes the ContainerToken.

See Also:
AMRMProtocol.allocate(org.apache.hadoop.yarn.api.protocolrecords.AllocateRequest), ContainerManager.startContainer(org.apache.hadoop.yarn.api.protocolrecords.StartContainerRequest)

Method Summary
 ByteBuffer getIdentifier()
          Get the token identifier.
 String getKind()
          Get the token kind.
 ByteBuffer getPassword()
          Get the token password
 String getService()
          Get the service to which the token is allocated.
 

Method Detail

getIdentifier

@InterfaceAudience.Public
@InterfaceStability.Stable
ByteBuffer getIdentifier()
Get the token identifier.

Returns:
token identifier

getPassword

@InterfaceAudience.Public
@InterfaceStability.Stable
ByteBuffer getPassword()
Get the token password

Returns:
token password

getKind

@InterfaceAudience.Public
@InterfaceStability.Stable
String getKind()
Get the token kind.

Returns:
token kind

getService

@InterfaceAudience.Public
@InterfaceStability.Stable
String getService()
Get the service to which the token is allocated.

Returns:
service to which the token is allocated


Copyright © 2012 Apache Software Foundation. All Rights Reserved.