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@InterfaceAudience.Private @InterfaceStability.Evolving public interface DataTransferProtocol
Transfer data to/from datanode using a streaming protocol.
Nested Class Summary | |
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static class |
DataTransferProtocol.BlockConstructionStage
|
static class |
DataTransferProtocol.Op
Operation |
static class |
DataTransferProtocol.PipelineAck
reply |
static class |
DataTransferProtocol.Receiver
Receiver |
static class |
DataTransferProtocol.Sender
Sender |
static class |
DataTransferProtocol.Status
Status |
Field Summary | |
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static int |
DATA_TRANSFER_VERSION
Version for data transfers between clients and datanodes This should change when serialization of DatanodeInfo, not just when protocol changes. |
static byte |
OP_BLOCK_CHECKSUM
Deprecated. Deprecated at 0.21. Use Op.BLOCK_CHECKSUM instead. |
static byte |
OP_COPY_BLOCK
Deprecated. Deprecated at 0.21. Use Op.COPY_BLOCK instead. |
static byte |
OP_READ_BLOCK
Deprecated. Deprecated at 0.21. Use Op.READ_BLOCK instead. |
static byte |
OP_READ_METADATA
Deprecated. As of version 15, OP_READ_METADATA is no longer supported. |
static byte |
OP_REPLACE_BLOCK
Deprecated. Deprecated at 0.21. Use Op.REPLACE_BLOCK instead. |
static int |
OP_STATUS_CHECKSUM_OK
Deprecated. Deprecated at 0.21. Use Status.CHECKSUM_OK instead. |
static int |
OP_STATUS_ERROR
Deprecated. Deprecated at 0.21. Use Status.ERROR instead. |
static int |
OP_STATUS_ERROR_ACCESS_TOKEN
Deprecated. Deprecated at 0.21. Use Status.ERROR_ACCESS_TOKEN instead. |
static int |
OP_STATUS_ERROR_CHECKSUM
Deprecated. Deprecated at 0.21. Use Status.ERROR_CHECKSUM instead. |
static int |
OP_STATUS_ERROR_EXISTS
Deprecated. Deprecated at 0.21. Use Status.ERROR_EXISTS instead. |
static int |
OP_STATUS_ERROR_INVALID
Deprecated. Deprecated at 0.21. Use Status.ERROR_INVALID instead. |
static int |
OP_STATUS_SUCCESS
Deprecated. Deprecated at 0.21. Use Status.SUCCESS instead. |
static byte |
OP_WRITE_BLOCK
Deprecated. Deprecated at 0.21. Use Op.WRITE_BLOCK instead. |
Field Detail |
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static final int DATA_TRANSFER_VERSION
@Deprecated static final byte OP_WRITE_BLOCK
@Deprecated static final byte OP_READ_BLOCK
@Deprecated static final byte OP_READ_METADATA
@Deprecated static final byte OP_REPLACE_BLOCK
@Deprecated static final byte OP_COPY_BLOCK
@Deprecated static final byte OP_BLOCK_CHECKSUM
@Deprecated static final int OP_STATUS_SUCCESS
@Deprecated static final int OP_STATUS_ERROR
@Deprecated static final int OP_STATUS_ERROR_CHECKSUM
@Deprecated static final int OP_STATUS_ERROR_INVALID
@Deprecated static final int OP_STATUS_ERROR_EXISTS
@Deprecated static final int OP_STATUS_ERROR_ACCESS_TOKEN
@Deprecated static final int OP_STATUS_CHECKSUM_OK
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