Package org.apache.hadoop.ozone.container.common.impl

Class TopNOrderedContainerDeletionChoosingPolicy

java.lang.Object

org.apache.hadoop.ozone.container.common.interfaces.ContainerDeletionChoosingPolicyTemplate

org.apache.hadoop.ozone.container.common.impl.TopNOrderedContainerDeletionChoosingPolicy

All Implemented Interfaces:

ContainerDeletionChoosingPolicy

public class TopNOrderedContainerDeletionChoosingPolicy
extends ContainerDeletionChoosingPolicyTemplate

TopN Ordered choosing policy that choosing containers based on pending deletion blocks' number.

Constructor Summary

Constructors

Constructor	Description
TopNOrderedContainerDeletionChoosingPolicy()

Method Summary

Modifier and Type	Method	Description
protected void	orderByDescendingPriority(List<ContainerData> candidateContainers)	Abstract step for ordering the container data to be deleted.

Methods inherited from class org.apache.hadoop.ozone.container.common.interfaces.ContainerDeletionChoosingPolicyTemplate

chooseContainerForBlockDeletion

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.hadoop.ozone.container.common.interfaces.ContainerDeletionChoosingPolicy

isValidContainerType

Constructor Details

TopNOrderedContainerDeletionChoosingPolicy

public TopNOrderedContainerDeletionChoosingPolicy()

Method Details

orderByDescendingPriority

protected void orderByDescendingPriority(List<ContainerData> candidateContainers)

Description copied from class: ContainerDeletionChoosingPolicyTemplate

Abstract step for ordering the container data to be deleted. Subclass need to implement the concrete ordering implementation in descending order (more prioritized -> less prioritized)

Specified by:

orderByDescendingPriority in class ContainerDeletionChoosingPolicyTemplate

Parameters:

candidateContainers - candidate containers to be ordered