Uses of Class
org.apache.hadoop.ozone.protocol.commands.SCMCommand

Packages that use SCMCommand

Package	Description
org.apache.hadoop.ozone.container.common.statemachine	State machine class is used by the container to denote various states a container can be in and also is used for command processing.
org.apache.hadoop.ozone.container.common.statemachine.commandhandler	Classes dedicated to handle container commands.
org.apache.hadoop.ozone.protocol	This package contains classes for HDDS protocol definitions.
org.apache.hadoop.ozone.protocol.commands	Set of classes that help in protoc conversions.

Uses of SCMCommand in org.apache.hadoop.ozone.container.common.statemachine

Methods in org.apache.hadoop.ozone.container.common.statemachine that return SCMCommand

Modifier and Type	Method	Description
SCMCommand<?>	StateContext.getNextCommand()	Returns the next command or null if it is empty.

Methods in org.apache.hadoop.ozone.container.common.statemachine with parameters of type SCMCommand

Modifier and Type	Method	Description
void	StateContext.addCmdStatus(SCMCommand<?> cmd)	Adds a CommandStatus to the State Machine for given SCMCommand.
void	StateContext.addCommand(SCMCommand<?> command)	Adds a command to the State Machine queue.

Uses of SCMCommand in org.apache.hadoop.ozone.container.common.statemachine.commandhandler

Methods in org.apache.hadoop.ozone.container.common.statemachine.commandhandler with parameters of type SCMCommand

Modifier and Type	Method	Description
void	CloseContainerCommandHandler.handle(SCMCommand<?> command, OzoneContainer ozoneContainer, StateContext context, SCMConnectionManager connectionManager)	Handles a given SCM command.
void	ClosePipelineCommandHandler.handle(SCMCommand<?> command, OzoneContainer ozoneContainer, StateContext context, SCMConnectionManager connectionManager)	Handles a given SCM command.
void	CommandDispatcher.handle(SCMCommand<?> command)	Dispatch the command to the correct handler.
void	CommandHandler.handle(SCMCommand<?> command, OzoneContainer container, StateContext context, SCMConnectionManager connectionManager)	Handles a given SCM command.
void	CreatePipelineCommandHandler.handle(SCMCommand<?> command, OzoneContainer ozoneContainer, StateContext context, SCMConnectionManager connectionManager)	Handles a given SCM command.
void	DeleteBlocksCommandHandler.handle(SCMCommand<?> command, OzoneContainer container, StateContext context, SCMConnectionManager connectionManager)
void	DeleteContainerCommandHandler.handle(SCMCommand<?> command, OzoneContainer ozoneContainer, StateContext context, SCMConnectionManager connectionManager)
void	FinalizeNewLayoutVersionCommandHandler.handle(SCMCommand<?> command, OzoneContainer ozoneContainer, StateContext context, SCMConnectionManager connectionManager)	Handles a given SCM command.
void	ReconcileContainerCommandHandler.handle(SCMCommand command, OzoneContainer container, StateContext context, SCMConnectionManager connectionManager)
void	ReconstructECContainersCommandHandler.handle(SCMCommand<?> command, OzoneContainer container, StateContext context, SCMConnectionManager connectionManager)
void	RefreshVolumeUsageCommandHandler.handle(SCMCommand<?> command, OzoneContainer container, StateContext context, SCMConnectionManager connectionManager)
void	ReplicateContainerCommandHandler.handle(SCMCommand<?> command, OzoneContainer container, StateContext context, SCMConnectionManager connectionManager)
void	SetNodeOperationalStateCommandHandler.handle(SCMCommand<?> command, OzoneContainer container, StateContext context, SCMConnectionManager connectionManager)	Handles a given SCM command.
default void	CommandHandler.updateCommandStatus(StateContext context, SCMCommand<?> command, Consumer<CommandStatus> cmdStatusUpdater, org.slf4j.Logger log)	Default implementation for updating command status.

Uses of SCMCommand in org.apache.hadoop.ozone.protocol

Methods in org.apache.hadoop.ozone.protocol that return types with arguments of type SCMCommand

Modifier and Type	Method	Description
default List<SCMCommand<?>>	StorageContainerNodeProtocol.processHeartbeat(org.apache.hadoop.hdds.protocol.DatanodeDetails datanodeDetails)	Send heartbeat to indicate the datanode is alive and doing well.
List<SCMCommand<?>>	StorageContainerNodeProtocol.processHeartbeat(org.apache.hadoop.hdds.protocol.DatanodeDetails datanodeDetails, org.apache.hadoop.hdds.protocol.proto.StorageContainerDatanodeProtocolProtos.CommandQueueReportProto queueReport)	Send heartbeat to indicate the datanode is alive and doing well.

Uses of SCMCommand in org.apache.hadoop.ozone.protocol.commands

Subclasses of SCMCommand in org.apache.hadoop.ozone.protocol.commands

Modifier and Type	Class	Description
class	CloseContainerCommand	Asks datanode to close a container.
class	ClosePipelineCommand	Asks datanode to close a pipeline.
class	CreatePipelineCommand	Asks datanode to create a pipeline.
class	DeleteBlocksCommand	A SCM command asks a datanode to delete a number of blocks.
class	DeleteContainerCommand	SCM command which tells the datanode to delete a container.
class	FinalizeNewLayoutVersionCommand	Asks DataNode to Finalize new upgrade version.
class	ReconcileContainerCommand	Asks datanodes to reconcile the specified container with other container replicas.
class	ReconstructECContainersCommand	SCM command to request reconstruction of EC containers.
class	RefreshVolumeUsageCommand	Asks datanode to refresh disk usage info immediately.
final class	ReplicateContainerCommand	SCM command to request replication of a container.
class	ReregisterCommand	Informs a datanode to register itself with SCM again.
class	SetNodeOperationalStateCommand	A command used to persist the current node operational state on the datanode.

Methods in org.apache.hadoop.ozone.protocol.commands that return SCMCommand

Modifier and Type	Method	Description
SCMCommand<T>	CommandForDatanode.getCommand()

Constructors in org.apache.hadoop.ozone.protocol.commands with parameters of type SCMCommand

Modifier	Constructor	Description
	CommandForDatanode(org.apache.hadoop.hdds.protocol.DatanodeDetails datanode, SCMCommand<T> command)
	CommandForDatanode(org.apache.hadoop.hdds.protocol.DatanodeID datanodeId, SCMCommand<T> command)