Uses of Class
org.apache.hadoop.hdfs.server.protocol.DatanodeCommand

Packages that use DatanodeCommand

Package	Description
org.apache.hadoop.hdfs.protocolPB	Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements.
org.apache.hadoop.hdfs.server.blockmanagement
org.apache.hadoop.hdfs.server.namenode
org.apache.hadoop.hdfs.server.protocol

Uses of DatanodeCommand in org.apache.hadoop.hdfs.protocolPB

Methods in org.apache.hadoop.hdfs.protocolPB that return DatanodeCommand

Modifier and Type	Method	Description
DatanodeCommand	DatanodeProtocolClientSideTranslatorPB.blockReport(DatanodeRegistration registration, java.lang.String poolId, StorageBlockReport[] reports, BlockReportContext context)
DatanodeCommand	DatanodeProtocolClientSideTranslatorPB.cacheReport(DatanodeRegistration registration, java.lang.String poolId, java.util.List<java.lang.Long> blockIds)
static DatanodeCommand	PBHelper.convert(org.apache.hadoop.hdfs.protocol.proto.DatanodeProtocolProtos.DatanodeCommandProto proto)

Methods in org.apache.hadoop.hdfs.protocolPB with parameters of type DatanodeCommand

Modifier and Type	Method	Description
static org.apache.hadoop.hdfs.protocol.proto.DatanodeProtocolProtos.DatanodeCommandProto	PBHelper.convert(DatanodeCommand datanodeCommand)

Uses of DatanodeCommand in org.apache.hadoop.hdfs.server.blockmanagement

Methods in org.apache.hadoop.hdfs.server.blockmanagement that return DatanodeCommand

Modifier and Type	Method	Description
DatanodeCommand[]	DatanodeManager.handleHeartbeat(DatanodeRegistration nodeReg, org.apache.hadoop.hdfs.server.protocol.StorageReport[] reports, java.lang.String blockPoolId, long cacheCapacity, long cacheUsed, int xceiverCount, int xmitsInProgress, int failedVolumes, VolumeFailureSummary volumeFailureSummary, org.apache.hadoop.hdfs.server.protocol.SlowPeerReports slowPeers, org.apache.hadoop.hdfs.server.protocol.SlowDiskReports slowDisks)	Handle heartbeat from datanodes.

Uses of DatanodeCommand in org.apache.hadoop.hdfs.server.namenode

Methods in org.apache.hadoop.hdfs.server.namenode that return DatanodeCommand

Modifier and Type	Method	Description
DatanodeCommand	NameNodeRpcServer.blockReport(DatanodeRegistration nodeReg, java.lang.String poolId, StorageBlockReport[] reports, BlockReportContext context)
DatanodeCommand	NameNodeRpcServer.cacheReport(DatanodeRegistration nodeReg, java.lang.String poolId, java.util.List<java.lang.Long> blockIds)

Uses of DatanodeCommand in org.apache.hadoop.hdfs.server.protocol

Subclasses of DatanodeCommand in org.apache.hadoop.hdfs.server.protocol

Modifier and Type	Class	Description
class	BalancerBandwidthCommand	Balancer bandwidth command instructs each datanode to change its value for the max amount of network bandwidth it may use during the block balancing operation.
class	BlockCommand	A BlockCommand is an instruction to a datanode regarding some blocks under its control.
class	BlockECReconstructionCommand	A BlockECReconstructionCommand is an instruction to a DataNode to reconstruct a striped block group with missing blocks.
class	BlockIdCommand	A BlockIdCommand is an instruction to a datanode regarding some blocks under its control.
class	BlockRecoveryCommand	BlockRecoveryCommand is an instruction to a data-node to recover the specified blocks.
class	BlockStorageMovementCommand	A BlockStorageMovementCommand is an instruction to a DataNode to move the given set of blocks to specified target DataNodes to fulfill the block storage policy.
class	DropSPSWorkCommand	A DropSPSWorkCommand is an instruction to a datanode to drop the SPSWorker's pending block storage movement queues.
class	FinalizeCommand	A BlockCommand is an instruction to a datanode to register with the namenode.
class	KeyUpdateCommand
class	RegisterCommand	A RegisterCommand is an instruction to a datanode to register with the namenode.

Fields in org.apache.hadoop.hdfs.server.protocol declared as DatanodeCommand

Modifier and Type	Field	Description
static DatanodeCommand	RegisterCommand.REGISTER

Methods in org.apache.hadoop.hdfs.server.protocol that return DatanodeCommand

Modifier and Type	Method	Description
DatanodeCommand	DatanodeProtocol.blockReport(DatanodeRegistration registration, java.lang.String poolId, StorageBlockReport[] reports, BlockReportContext context)	blockReport() tells the NameNode about all the locally-stored blocks.
DatanodeCommand	DatanodeProtocol.cacheReport(DatanodeRegistration registration, java.lang.String poolId, java.util.List<java.lang.Long> blockIds)	Communicates the complete list of locally cached blocks to the NameNode.
DatanodeCommand[]	HeartbeatResponse.getCommands()

Constructors in org.apache.hadoop.hdfs.server.protocol with parameters of type DatanodeCommand

Constructor	Description
HeartbeatResponse(DatanodeCommand[] cmds, NNHAStatusHeartbeat haStatus, org.apache.hadoop.hdfs.protocol.RollingUpgradeStatus rollingUpdateStatus, long fullBlockReportLeaseId)
HeartbeatResponse(DatanodeCommand[] cmds, NNHAStatusHeartbeat haStatus, org.apache.hadoop.hdfs.protocol.RollingUpgradeStatus rollingUpdateStatus, long fullBlockReportLeaseId, boolean isSlownode)