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
DataTransferEncryptor	A class which, given connected input/output streams, will perform a handshake using those streams based on SASL to produce new Input/Output streams which will encrypt/decrypt all data written/read from said streams.
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
Receiver	Receiver
Sender	Sender

Enum Summary

Enum	Description
BlockConstructionStage	Block Construction Stage
Op	Operation
ReplaceDatanodeOnFailure	The setting of replace-datanode-on-failure feature.

Exception Summary

Exception	Description
DataTransferEncryptor.InvalidMagicNumberException
InvalidEncryptionKeyException	Encryption key verification failed.