Package org.apache.hadoop.yarn.security

Class MapRTicketManager

java.lang.Object

org.apache.hadoop.yarn.security.MapRTicketManager

All Implemented Interfaces:

ExternalTokenManager

public class MapRTicketManager
extends java.lang.Object
implements ExternalTokenManager

Manages MapR ticket needed for running the application.

Constructor Summary

Constructors

Constructor	Description
MapRTicketManager()

Method Summary

Modifier and Type	Method	Description
void	generateToken(org.apache.hadoop.yarn.api.records.ApplicationSubmissionContext appCtx, java.lang.String username, org.apache.hadoop.conf.Configuration conf)	Generates a token and stores it in DFS.
void	removeToken(org.apache.hadoop.yarn.api.records.ApplicationId appId, org.apache.hadoop.conf.Configuration conf)	Deletes the token from DFS.
void	uploadTokenToDistributedCache(org.apache.hadoop.yarn.api.records.ApplicationId appId)	Uploads token to DFS for the given application.

Methods inherited from class java.lang.Object

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

Constructor Detail

MapRTicketManager

public MapRTicketManager()

Method Detail

uploadTokenToDistributedCache

public void uploadTokenToDistributedCache(org.apache.hadoop.yarn.api.records.ApplicationId appId)

Description copied from interface: ExternalTokenManager

Uploads token to DFS for the given application. This is invoked when client submits the application. So it will be executed using the client privileges.

Specified by:

uploadTokenToDistributedCache in interface ExternalTokenManager

Parameters:

appId - application id

generateToken

public void generateToken(org.apache.hadoop.yarn.api.records.ApplicationSubmissionContext appCtx,
                          java.lang.String username,
                          org.apache.hadoop.conf.Configuration conf)

Description copied from interface: ExternalTokenManager

Generates a token and stores it in DFS. This is invoked on the resource manager node before the application is launched. It will be executed using the privileges of the user the resource manager runs as. When the container starts on a node, the token will be localized by @link{ResourceLocalizationService}.

Specified by:

generateToken in interface ExternalTokenManager

removeToken

public void removeToken(org.apache.hadoop.yarn.api.records.ApplicationId appId,
                        org.apache.hadoop.conf.Configuration conf)

Description copied from interface: ExternalTokenManager

Deletes the token from DFS. This is invoked on the resource manager node after the application completes.

Specified by:

removeToken in interface ExternalTokenManager