| Package | Description |
|---|---|
| org.apache.hadoop.hdfs |
A distributed implementation of
FileSystem. |
| org.apache.hadoop.hdfs.net | |
| org.apache.hadoop.hdfs.protocol | |
| org.apache.hadoop.hdfs.protocol.datatransfer | |
| org.apache.hadoop.hdfs.server.datanode | |
| org.apache.hadoop.hdfs.server.datanode.fsdataset | |
| org.apache.hadoop.hdfs.server.datanode.fsdataset.impl |
| Class and Description |
|---|
| CachingStrategy
The caching strategy we should use for an HDFS read or write operation.
|
| Class and Description |
|---|
| SecureDataNodeStarter.SecureResources
Stash necessary resources needed for datanode operation in a secure env.
|
| Class and Description |
|---|
| ReplicaInfo
This class is used by datanodes to maintain meta data of its replicas.
|
| Class and Description |
|---|
| CachingStrategy
The caching strategy we should use for an HDFS read or write operation.
|
| Class and Description |
|---|
| BlockMetadataHeader
BlockMetadataHeader manages metadata for data blocks on Datanodes.
|
| CachingStrategy
The caching strategy we should use for an HDFS read or write operation.
|
| DataBlockScanner
DataBlockScanner manages block scanning for all the block pools.
|
| DataNode
DataNode is a class (and program) that stores a set of
blocks for a DFS deployment.
|
| DataNodeMXBean
This is the JMX management interface for data node information
|
| DNConf
Simple class encapsulating all of the configuration that the DataNode
loads at startup time.
|
| FinalizedReplica
This class describes a replica that has been finalized.
|
| Replica
This represents block replicas which are stored in DataNode.
|
| ReplicaBeingWritten
This class represents replicas being written.
|
| ReplicaInfo
This class is used by datanodes to maintain meta data of its replicas.
|
| ReplicaInfo.ReplicaDirInfo |
| ReplicaInPipeline
This class defines a replica in a pipeline, which
includes a persistent replica being written to by a dfs client or
a temporary replica being replicated by a source datanode or
being copied for the balancing purpose.
|
| ReplicaInPipelineInterface
This defines the interface of a replica in Pipeline that's being written to
|
| ReplicaUnderRecovery
This class represents replicas that are under block recovery
It has a recovery id that is equal to the generation stamp
that the replica will be bumped to after recovery
The recovery id is used to handle multiple concurrent block recoveries.
|
| ReplicaWaitingToBeRecovered
This class represents a replica that is waiting to be recovered.
|
| SecureDataNodeStarter.SecureResources
Stash necessary resources needed for datanode operation in a secure env.
|
| Class and Description |
|---|
| DataNode
DataNode is a class (and program) that stores a set of
blocks for a DFS deployment.
|
| DataStorage
Data storage information file.
|
| Replica
This represents block replicas which are stored in DataNode.
|
| ReplicaInPipelineInterface
This defines the interface of a replica in Pipeline that's being written to
|
| Class and Description |
|---|
| DataNode
DataNode is a class (and program) that stores a set of
blocks for a DFS deployment.
|
| DataStorage
Data storage information file.
|
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