org.apache.oozie.action.hadoop

Class HDFSCredentials

java.lang.Object

org.apache.oozie.action.hadoop.HDFSCredentials

All Implemented Interfaces:

CredentialsProvider

public class HDFSCredentials
extends Object
implements CredentialsProvider

Field Summary

Fields

Modifier and Type	Field and Description
protected XLog	LOG

Constructor Summary

Constructors

Constructor and Description
HDFSCredentials()

Method Summary

Modifier and Type	Method and Description
void	updateCredentials(org.apache.hadoop.security.Credentials credentials, org.apache.hadoop.conf.Configuration config, CredentialsProperties props, ActionExecutor.Context context) Add an HDFS_DELEGATION_TOKEN to the Credentials provided.

Methods inherited from class java.lang.Object

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

Field Detail

LOG

protected XLog LOG

Constructor Detail

HDFSCredentials

public HDFSCredentials()

Method Detail

updateCredentials

public void updateCredentials(org.apache.hadoop.security.Credentials credentials,
                              org.apache.hadoop.conf.Configuration config,
                              CredentialsProperties props,
                              ActionExecutor.Context context)
                       throws Exception

Add an HDFS_DELEGATION_TOKEN to the Credentials provided. This is also important to ensure that log aggregation works correctly from the NM

Specified by:

updateCredentials in interface CredentialsProvider

Parameters:

credentials - the credentials object which is updated

config - launcher AM configuration

props - properties for getting credential token or certificate

context - workflow context

Throws:

Exception - thrown if failed