org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair

Class QueuePlacementPolicy

java.lang.Object

org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.QueuePlacementPolicy

public class QueuePlacementPolicy
extends Object

Constructor Summary

Constructors

Constructor and Description
QueuePlacementPolicy(List<QueuePlacementRule> rules, Set<String> configuredQueues, org.apache.hadoop.conf.Configuration conf)

Method Summary

Methods

Modifier and Type	Method and Description
String	assignAppToQueue(String requestedQueue, String user) Applies this rule to an app with the given requested queue and user/group information.
static QueuePlacementPolicy	fromConfiguration(org.apache.hadoop.conf.Configuration conf, Set<String> configuredQueues) Build a simple queue placement policy from the allow-undeclared-pools and user-as-default-queue configuration options.
static QueuePlacementPolicy	fromXml(Element el, Set<String> configuredQueues, org.apache.hadoop.conf.Configuration conf) Builds a QueuePlacementPolicy from an xml element.
List<QueuePlacementRule>	getRules()

Methods inherited from class java.lang.Object

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

Constructor Detail

QueuePlacementPolicy

public QueuePlacementPolicy(List<QueuePlacementRule> rules,
                    Set<String> configuredQueues,
                    org.apache.hadoop.conf.Configuration conf)
                     throws AllocationConfigurationException

Throws:

AllocationConfigurationException

Method Detail

fromXml

public static QueuePlacementPolicy fromXml(Element el,
                           Set<String> configuredQueues,
                           org.apache.hadoop.conf.Configuration conf)
                                    throws AllocationConfigurationException

Builds a QueuePlacementPolicy from an xml element.

Throws:

AllocationConfigurationException

fromConfiguration

public static QueuePlacementPolicy fromConfiguration(org.apache.hadoop.conf.Configuration conf,
                                     Set<String> configuredQueues)

Build a simple queue placement policy from the allow-undeclared-pools and user-as-default-queue configuration options.

assignAppToQueue

public String assignAppToQueue(String requestedQueue,
                      String user)
                        throws IOException

Applies this rule to an app with the given requested queue and user/group information.

Parameters:

requestedQueue - The queue specified in the ApplicationSubmissionContext

user - The user submitting the app

Returns:

The name of the queue to assign the app to. Or null if the app should be rejected.

Throws:

IOException - If an exception is encountered while getting the user's groups

getRules

public List<QueuePlacementRule> getRules()