Package org.apache.hadoop.hdfs.protocol.datatransfer

Interface Summary

Interface	Description
DataTransferProtocol	Transfer data to/from datanode using a streaming protocol.

Class Summary

Class	Description
DataTransferProtoUtil	Static utilities for dealing with the protocol buffers used by the Data Transfer Protocol.
IOStreamPair	A little struct class to wrap an InputStream and an OutputStream.
PacketHeader	Header data for each packet that goes through the read/write pipelines.
PacketReceiver	Class to handle reading packets one-at-a-time from the wire.
PipelineAck	Pipeline Acknowledgment
ReplaceDatanodeOnFailure	The setting of replace-datanode-on-failure feature.
Sender	Sender
TrustedChannelResolver	Class used to indicate whether a channel is trusted or not.

Enum Summary

Enum	Description
BlockConstructionStage	Block Construction Stage
Op	Operation
PipelineAck.ECN
PipelineAck.SLOW
ReplaceDatanodeOnFailure.Policy	The replacement policies

Exception Summary

Exception	Description
BlockPinningException	Indicates a failure due to block pinning.
InvalidEncryptionKeyException	Encryption key verification failed.