Package org.apache.hadoop.hdfs.server.protocol

Class DatanodeCommand

java.lang.Object

org.apache.hadoop.hdfs.server.protocol.ServerCommand

org.apache.hadoop.hdfs.server.protocol.DatanodeCommand

Direct Known Subclasses:

BalancerBandwidthCommand, BlockCommand, BlockECReconstructionCommand, BlockIdCommand, BlockRecoveryCommand, BlockStorageMovementCommand, DropSPSWorkCommand, FinalizeCommand, KeyUpdateCommand, RegisterCommand

@Private
@Evolving
public abstract class DatanodeCommand
extends ServerCommand

Base class for data-node command. Issued by the name-node to notify data-nodes what should be done.

Method Summary

Methods inherited from class org.apache.hadoop.hdfs.server.protocol.ServerCommand

getAction, toString

Methods inherited from class java.lang.Object

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