| 接口 | 说明 |
|---|---|
| DataNodeMXBean |
This is the JMX management interface for data node information
|
| FSDatasetInterface |
This is an interface for the underlying storage that stores blocks for
a data node.
|
| 类 | 说明 |
|---|---|
| BlockMetadataHeader |
BlockMetadataHeader manages metadata for data blocks on Datanodes.
|
| DataNode |
DataNode is a class (and program) that stores a set of
blocks for a DFS deployment.
|
| DataStorage |
Data storage information file.
|
| FSDataset |
FSDataset manages a set of data blocks.
|
| FSDatasetInterface.BlockInputStreams |
This class contains the input streams for the data and checksum
of a block
|
| FSDatasetInterface.BlockWriteStreams |
This class contains the output streams for the data and checksum
of a block
|
| FSDatasetInterface.MetaDataInputStream |
This class provides the input stream and length of the metadata
of a block
|
| SecureDataNodeStarter |
Utility class to start a datanode in a secure cluster, first obtaining
privileged resources before main startup and handing them to the datanode.
|
| SecureDataNodeStarter.SecureResources |
Stash necessary resources needed for datanode operation in a secure env.
|
| UpgradeObjectDatanode |
Base class for data-node upgrade objects.
|
Copyright © 2009 The Apache Software Foundation