Package org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.helper

Class CapacitySchedulerInfoHelper

java.lang.Object
org.apache.hadoop.yarn.server.resourcemanager.webapp.dao.helper.CapacitySchedulerInfoHelper
public class CapacitySchedulerInfoHelper extends Object
Helper class to describe a queue's type, its creation method and its eligibility of having auto created children. queueType: a queue can be a parent or a leaf. creationMethod: the creation method of the queue. Can be: static, dynamicLegacy or dynamicFlexible. When the legacy way of queue auto-creation (before YARN-10506) is used, a parent can only be static (ManagedParent) and a leaf queue can only be dynamicLegacy (no static child queues are allowed under ManagedParents). When the flexible auto queue creation is used both a parent and a leaf can be either static or dynamicFlexible. autoCreationEligibility: describes whether a queue can have dynamically created children. Can be: off, legacy or flexible. Every leaf will have this field with the value off, as they can't have children. When the legacy way of queue auto-creation (before YARN-10506) is used a ManagedParent will have the legacy value. When the flexible auto queue creation is used a static parent can have the value flexible if it is configured to allow auto queue creation, or off if it is not. A dynamic parent implicitly will have the value flexible, as a dynamically created parent cannot have static children.