alluxio.worker.block.management.tier

Class AlignTask

java.lang.Object

alluxio.worker.block.management.AbstractBlockManagementTask

alluxio.worker.block.management.tier.AlignTask

All Implemented Interfaces:

BlockManagementTask

public class AlignTask
extends AbstractBlockManagementTask

A BlockStore management task that swaps blocks between tiers in order to align tiers based on block annotation policy. A single task may not be enough to completely align tiers, so ManagementTaskCoordinator will keep instantiating new tasks until no longer needed.

Field Summary

Fields inherited from class alluxio.worker.block.management.AbstractBlockManagementTask

mBlockStore, mEvictorView, mExecutor, mLoadTracker, mMetadataManager, mTransferExecutor

Constructor Summary

Constructors

Constructor and Description
AlignTask(LocalBlockStore blockStore, BlockMetadataManager metadataManager, BlockMetadataEvictorView evictorView, StoreLoadTracker loadTracker, ExecutorService executor) Creates a new align task.

Method Summary

Modifier and Type	Method and Description
BlockManagementTaskResult	run() Run management task.

Methods inherited from class java.lang.Object

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

Constructor Detail

AlignTask

public AlignTask(LocalBlockStore blockStore,
                 BlockMetadataManager metadataManager,
                 BlockMetadataEvictorView evictorView,
                 StoreLoadTracker loadTracker,
                 ExecutorService executor)

Creates a new align task.

Parameters:

blockStore - the block store

metadataManager - the meta manager

evictorView - the evictor view

loadTracker - the load tracker

executor - the executor

Method Detail

run

public BlockManagementTaskResult run()

Description copied from interface: BlockManagementTask

Run management task.

Returns:

the task result