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 |
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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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