org.apache.hadoop.yarn.client

Class RMProxy<T>

java.lang.Object

org.apache.hadoop.yarn.client.RMProxy<T>

Direct Known Subclasses:

ClientRMProxy

@InterfaceAudience.Public
 @InterfaceStability.Evolving
public class RMProxy<T>
extends Object

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	RMProxy()

Method Summary

Modifier and Type	Method and Description
protected void	checkAllowedProtocols(Class<?> protocol) Verify the passed protocol is supported.
static org.apache.hadoop.io.retry.RetryPolicy	createRetryPolicy(Configuration conf) Fetch retry policy from Configuration
static <T> T	createRMProxy(Configuration conf, Class<T> protocol, InetSocketAddress rmAddress) Deprecated. This method is deprecated and is not used by YARN internally any more. To create a proxy to the RM, use ClientRMProxy#createRMProxy or ServerRMProxy#createRMProxy. Create a proxy to the ResourceManager at the specified address.
protected static <T> T	createRMProxy(Configuration configuration, Class<T> protocol, RMProxy instance) Create a proxy for the specified protocol.
protected InetSocketAddress	getRMAddress(YarnConfiguration conf, Class<?> protocol) Get the ResourceManager address from the provided Configuration for the given protocol.

Methods inherited from class java.lang.Object

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

Constructor Detail

RMProxy

protected RMProxy()

Method Detail

checkAllowedProtocols

@InterfaceAudience.Private
protected void checkAllowedProtocols(Class<?> protocol)

Verify the passed protocol is supported.

getRMAddress

@InterfaceAudience.Private
protected InetSocketAddress getRMAddress(YarnConfiguration conf,
                                                                    Class<?> protocol)
                                                             throws IOException

Get the ResourceManager address from the provided Configuration for the given protocol.

Throws:

IOException

createRMProxy

@InterfaceAudience.Private
protected static <T> T createRMProxy(Configuration configuration,
                                                                Class<T> protocol,
                                                                RMProxy instance)
                                                         throws IOException

Create a proxy for the specified protocol. For non-HA, this is a direct connection to the ResourceManager address. When HA is enabled, the proxy handles the failover between the ResourceManagers as well.

Throws:

IOException

createRMProxy

@Deprecated
public static <T> T createRMProxy(Configuration conf,
                                              Class<T> protocol,
                                              InetSocketAddress rmAddress)
                                       throws IOException

Deprecated. This method is deprecated and is not used by YARN internally any more. To create a proxy to the RM, use ClientRMProxy#createRMProxy or ServerRMProxy#createRMProxy. Create a proxy to the ResourceManager at the specified address.

Type Parameters:

T - Type information of the proxy

Parameters:

conf - Configuration to generate retry policy

protocol - Protocol for the proxy

rmAddress - Address of the ResourceManager

Returns:

Proxy to the RM

Throws:

IOException

createRetryPolicy

@InterfaceAudience.Private
public static org.apache.hadoop.io.retry.RetryPolicy createRetryPolicy(Configuration conf)

Fetch retry policy from Configuration