Package org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity

Class CapacitySchedulerQueueCapacityHandler

java.lang.Object

org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacitySchedulerQueueCapacityHandler

public class CapacitySchedulerQueueCapacityHandler
extends java.lang.Object

Controls how capacity and resource values are set and calculated for a queue. Effective minimum and maximum resource values are set for each label and resource separately.

Constructor Summary

Constructors

Constructor	Description
CapacitySchedulerQueueCapacityHandler(RMNodeLabelsManager labelsManager, CapacitySchedulerConfiguration configuration)

Method Summary

Modifier and Type	Method	Description
static void	setQueueCapacities(org.apache.hadoop.yarn.api.records.Resource clusterResource, CSQueue queue, java.lang.String label)	Sets capacity and absolute capacity values of a queue based on minimum and maximum effective resources.
QueueCapacityUpdateContext	updateChildren(org.apache.hadoop.yarn.api.records.Resource clusterResource, CSQueue queue)	Updates the resource and metrics values of all children under a specific queue.
void	updateRoot(CSQueue rootQueue, org.apache.hadoop.yarn.api.records.Resource clusterResource)	Updates the resource and metrics value of the root queue.

Methods inherited from class java.lang.Object

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

Constructor Detail

CapacitySchedulerQueueCapacityHandler

public CapacitySchedulerQueueCapacityHandler(RMNodeLabelsManager labelsManager,
                                             CapacitySchedulerConfiguration configuration)

Method Detail

updateChildren

public QueueCapacityUpdateContext updateChildren(org.apache.hadoop.yarn.api.records.Resource clusterResource,
                                                 CSQueue queue)

Updates the resource and metrics values of all children under a specific queue. These values are calculated at runtime.

Parameters:

clusterResource - resource of the cluster

queue - parent queue whose children will be updated

Returns:

update context that contains information about the update phase

updateRoot

public void updateRoot(CSQueue rootQueue,
                       org.apache.hadoop.yarn.api.records.Resource clusterResource)

Updates the resource and metrics value of the root queue. Root queue always has percentage capacity type and is assigned the cluster resource as its minimum and maximum effective resource.

Parameters:

rootQueue - root queue

clusterResource - cluster resource

setQueueCapacities

public static void setQueueCapacities(org.apache.hadoop.yarn.api.records.Resource clusterResource,
                                      CSQueue queue,
                                      java.lang.String label)

Sets capacity and absolute capacity values of a queue based on minimum and maximum effective resources.

Parameters:

clusterResource - overall cluster resource

queue - child queue for which the capacities are set

label - node label