org.apache.hadoop.yarn.util

Class RackResolver

java.lang.Object

org.apache.hadoop.yarn.util.RackResolver

@InterfaceAudience.LimitedPrivate(value={"YARN","MAPREDUCE"})
public class RackResolver
extends Object

Constructor Summary

Constructors

Constructor and Description
RackResolver()

Method Summary

Methods

Modifier and Type	Method and Description
static void	init(org.apache.hadoop.conf.Configuration conf)
static org.apache.hadoop.net.Node	resolve(org.apache.hadoop.conf.Configuration conf, String hostName) Utility method for getting a hostname resolved to a node in the network topology.
static org.apache.hadoop.net.Node	resolve(String hostName) Utility method for getting a hostname resolved to a node in the network topology.

Methods inherited from class java.lang.Object

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

Constructor Detail

RackResolver

public RackResolver()

Method Detail

init

public static void init(org.apache.hadoop.conf.Configuration conf)

resolve

public static org.apache.hadoop.net.Node resolve(org.apache.hadoop.conf.Configuration conf,
                                 String hostName)

Utility method for getting a hostname resolved to a node in the network topology. This method initializes the class with the right resolver implementation.

Parameters:

conf -

hostName -

Returns:

node Node after resolving the hostname

resolve

public static org.apache.hadoop.net.Node resolve(String hostName)

Utility method for getting a hostname resolved to a node in the network topology. This method doesn't initialize the class. Call init(Configuration) explicitly.

Parameters:

hostName -

Returns:

node Node after resolving the hostname