Package org.apache.hadoop.ozone.container.common.statemachine.commandhandler

package org.apache.hadoop.ozone.container.common.statemachine.commandhandler

Classes dedicated to handle container commands.

Related Packages

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.

Class	Description
CloseContainerCommandHandler	Handler for close container command received from SCM.
ClosePipelineCommandHandler	Handler for close pipeline command received from SCM.
CommandDispatcher	Dispatches command to the correct handler.
CommandDispatcher.Builder	Helper class to construct command dispatcher.
CommandHandler	Generic interface for handlers.
CreatePipelineCommandHandler	Handler for create pipeline command received from SCM.
DeleteBlocksCommandHandler	Handle block deletion commands.
DeleteBlocksCommandHandler.DeleteBlockTransactionExecutionResult	This class represents the result of executing a delete block transaction.
DeleteBlocksCommandHandler.DeleteCmdInfo	A delete command info.
DeleteBlocksCommandHandler.SchemaHandler	The SchemaHandler interface provides a contract for handling KeyValueContainerData and DeletedBlocksTransaction based on different schema versions.
DeleteContainerCommandHandler	Handler to process the DeleteContainerCommand from SCM.
FinalizeNewLayoutVersionCommandHandler	Handler for FinalizeNewLayoutVersion command received from SCM.
ReconcileContainerCommandHandler	Handles commands from SCM to reconcile a container replica on this datanode with the replicas on its peers.
ReconstructECContainersCommandHandler	Command handler for reconstructing the lost EC containers.
RefreshVolumeUsageCommandHandler	Command handler to refresh usage info of all volumes.
ReplicateContainerCommandHandler	Command handler to copy containers from sources.
SetNodeOperationalStateCommandHandler	Handle the SetNodeOperationalStateCommand sent from SCM to the datanode to persist the current operational state.