Package org.apache.hadoop.hdfs.tools

Class DelegationTokenFetcher

java.lang.Object

org.apache.hadoop.hdfs.tools.DelegationTokenFetcher

@Private
public class DelegationTokenFetcher
extends java.lang.Object

Fetch a DelegationToken from the current Namenode and store it in the specified file.

Constructor Summary

Constructors

Constructor	Description
DelegationTokenFetcher()

Method Summary

Modifier and Type	Method	Description
static void	main(java.lang.String[] args)	Command-line interface.
static void	main(org.apache.hadoop.conf.Configuration conf, java.lang.String[] args)	Command line interface with a specific configuration.
static java.lang.String	printTokensToString(org.apache.hadoop.conf.Configuration conf, org.apache.hadoop.fs.Path tokenFile, boolean verbose)

Methods inherited from class java.lang.Object

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

Constructor Detail

DelegationTokenFetcher

public DelegationTokenFetcher()

Method Detail

main

public static void main(java.lang.String[] args)
                 throws java.lang.Exception

Command-line interface.

Parameters:

args - argument list.

Throws:

java.lang.Exception - on a failure.

org.apache.hadoop.util.ExitUtil.ExitException - if the command failed and exiting was disabled.

main

@VisibleForTesting
public static void main(org.apache.hadoop.conf.Configuration conf,
                        java.lang.String[] args)
                 throws java.lang.Exception

Command line interface with a specific configuration. Errors in this operation will call ExitUtil.terminate(int) to exit the process.

Parameters:

conf - configuration to create filesystems with.

args - argument list.

Throws:

java.lang.Exception - on a failure.

org.apache.hadoop.util.ExitUtil.ExitException - if the command failed and exiting was disabled.

printTokensToString

@VisibleForTesting
public static java.lang.String printTokensToString(org.apache.hadoop.conf.Configuration conf,
                                                   org.apache.hadoop.fs.Path tokenFile,
                                                   boolean verbose)
                                            throws java.io.IOException

Throws:

java.io.IOException