org.apache.hadoop.hdfs.server.datanode Class Hierarchy (Apache Hadoop HDFS 3.5.0 API)
Description: tree: package: org.apache.hadoop.hdfs.server.datanode

# Hierarchy For Package org.apache.hadoop.hdfs.server.datanode

Package Hierarchies:

- All Packages

## Class Hierarchy

- java.lang.Object
  - org.apache.hadoop.hdfs.protocol.Block (implements java.lang.Comparable<T>, org.apache.hadoop.io.Writable)
    - org.apache.hadoop.hdfs.server.datanode.ReplicaInfo (implements org.apache.hadoop.util.LightWeightGSet.LinkedElement, org.apache.hadoop.hdfs.server.datanode.Replica)
      - org.apache.hadoop.hdfs.server.datanode.LocalReplica
        - org.apache.hadoop.hdfs.server.datanode.FinalizedReplica
        - org.apache.hadoop.hdfs.server.datanode.LocalReplicaInPipeline (implements org.apache.hadoop.hdfs.server.datanode.ReplicaInPipeline)
          - org.apache.hadoop.hdfs.server.datanode.ReplicaBeingWritten
        - org.apache.hadoop.hdfs.server.datanode.ReplicaUnderRecovery
        - org.apache.hadoop.hdfs.server.datanode.ReplicaWaitingToBeRecovered
      - org.apache.hadoop.hdfs.server.datanode.ProvidedReplica
        - org.apache.hadoop.hdfs.server.datanode.FinalizedProvidedReplica
  - org.apache.hadoop.hdfs.server.datanode.BlockRecoveryWorker
  - org.apache.hadoop.hdfs.server.datanode.BlockRecoveryWorker.RecoveryTaskStriped
  - org.apache.hadoop.hdfs.server.datanode.BlockScanner
  - org.apache.hadoop.fs.CachingGetSpaceUsed (implements java.io.Closeable, org.apache.hadoop.fs.GetSpaceUsed)
    - org.apache.hadoop.hdfs.server.datanode.FSCachingGetSpaceUsed
  - org.apache.hadoop.hdfs.server.datanode.ChunkChecksum
  - org.apache.hadoop.conf.Configured (implements org.apache.hadoop.conf.Configurable)
    - org.apache.hadoop.conf.ReconfigurableBase (implements org.apache.hadoop.conf.Reconfigurable)
      - org.apache.hadoop.hdfs.server.datanode.DataNode (implements org.apache.hadoop.hdfs.protocol.ClientDatanodeProtocol, org.apache.hadoop.hdfs.server.datanode.DataNodeMXBean, org.apache.hadoop.hdfs.server.protocol.InterDatanodeProtocol, org.apache.hadoop.hdfs.protocol.ReconfigurationProtocol)
  - org.apache.hadoop.hdfs.server.datanode.DataNodeFaultInjector
  - org.apache.hadoop.hdfs.server.datanode.DataNodeLayoutSubLockStrategy (implements org.apache.hadoop.hdfs.server.datanode.DataSetSubLockStrategy)
  - org.apache.hadoop.hdfs.server.datanode.DataNodeLayoutVersion
  - org.apache.hadoop.hdfs.server.datanode.DatanodeUtil
  - org.apache.hadoop.hdfs.server.datanode.DataSetLockManager (implements org.apache.hadoop.hdfs.server.common.DataNodeLockManager<T>)
  - org.apache.hadoop.hdfs.server.datanode.DataStorage.VolumeBuilder
  - org.apache.hadoop.hdfs.server.datanode.DirectoryScanner (implements java.lang.Runnable)
  - org.apache.hadoop.hdfs.server.datanode.DirectoryScanner.BlockPoolReport
  - org.apache.hadoop.hdfs.server.datanode.DirectoryScanner.ReportCompiler (implements java.util.concurrent.Callable<V>)
  - org.apache.hadoop.hdfs.server.datanode.DirectoryScanner.ScanInfoVolumeReport
  - org.apache.hadoop.hdfs.server.datanode.DiskBalancer
  - org.apache.hadoop.hdfs.server.datanode.DiskBalancer.DiskBalancerMover (implements org.apache.hadoop.hdfs.server.datanode.DiskBalancer.BlockMover)
  - org.apache.hadoop.hdfs.server.datanode.DiskBalancer.VolumePair
  - org.apache.hadoop.hdfs.server.datanode.DNConf
  - org.apache.hadoop.hdfs.server.datanode.ErrorReportAction (implements org.apache.hadoop.hdfs.server.datanode.BPServiceActorAction)
  - org.apache.hadoop.hdfs.server.datanode.FaultInjectorFileIoEvents
  - org.apache.hadoop.hdfs.server.datanode.FileIoProvider
  - javax.servlet.GenericServlet (implements java.io.Serializable, javax.servlet.Servlet, javax.servlet.ServletConfig)
    - javax.servlet.http.HttpServlet
      - org.apache.hadoop.hdfs.server.datanode.BlockScanner.Servlet
  - org.apache.hadoop.fs.GetSpaceUsed.Builder
    - org.apache.hadoop.hdfs.server.datanode.FSCachingGetSpaceUsed.Builder
  - org.apache.hadoop.hdfs.server.datanode.LocalReplica.ReplicaDirInfo
  - org.apache.hadoop.hdfs.server.datanode.ReplicaBuilder
  - org.apache.hadoop.hdfs.server.datanode.ReplicaHandler (implements java.io.Closeable)
  - org.apache.hadoop.hdfs.server.datanode.ReportBadBlockAction (implements org.apache.hadoop.hdfs.server.datanode.BPServiceActorAction)
  - org.apache.hadoop.hdfs.server.datanode.SecureDataNodeStarter (implements org.apache.commons.daemon.Daemon)
  - org.apache.hadoop.hdfs.server.datanode.SecureDataNodeStarter.SecureResources
  - org.apache.hadoop.hdfs.server.datanode.ShortCircuitRegistry
  - org.apache.hadoop.hdfs.server.datanode.ShortCircuitRegistry.NewShmInfo (implements java.io.Closeable)
  - org.apache.hadoop.hdfs.shortcircuit.ShortCircuitShm
    - org.apache.hadoop.hdfs.server.datanode.ShortCircuitRegistry.RegisteredShm (implements org.apache.hadoop.net.unix.DomainSocketWatcher.Handler)
  - org.apache.hadoop.hdfs.server.common.StorageInfo
    - org.apache.hadoop.hdfs.server.common.Storage
      - org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceStorage
      - org.apache.hadoop.hdfs.server.datanode.DataStorage
  - org.apache.hadoop.hdfs.server.datanode.StorageLocation (implements org.apache.hadoop.hdfs.server.datanode.checker.Checkable<K,V>, java.lang.Comparable<T>)
  - org.apache.hadoop.hdfs.server.datanode.StorageLocation.CheckContext
  - java.lang.Thread (implements java.lang.Runnable)
    - org.apache.hadoop.util.concurrent.SubjectInheritingThread
      - org.apache.hadoop.hdfs.server.datanode.VolumeScanner
  - java.lang.Throwable (implements java.io.Serializable)
    - java.lang.Exception
      - java.io.IOException
        - org.apache.hadoop.hdfs.server.datanode.BPServiceActorActionException
        - org.apache.hadoop.hdfs.server.datanode.DataNode.ShortCircuitFdsUnsupportedException
        - org.apache.hadoop.hdfs.server.datanode.DataNode.ShortCircuitFdsVersionException
        - org.apache.hadoop.hdfs.server.datanode.DiskFileCorruptException
        - org.apache.hadoop.hdfs.server.datanode.ReplicaAlreadyExistsException
        - org.apache.hadoop.hdfs.server.datanode.UnexpectedReplicaStateException
  - org.apache.hadoop.hdfs.server.datanode.VolumeScannerCBInjector

## Interface Hierarchy

- org.apache.hadoop.hdfs.server.datanode.BPServiceActorAction
- org.apache.hadoop.hdfs.server.datanode.DataNodeMXBean
- org.apache.hadoop.hdfs.server.datanode.DataSetSubLockStrategy
- org.apache.hadoop.hdfs.server.datanode.DiskBalancer.BlockMover
- org.apache.hadoop.hdfs.server.datanode.Replica
  - org.apache.hadoop.hdfs.server.datanode.ReplicaInPipeline
- org.apache.hadoop.hdfs.server.datanode.ShortCircuitRegistry.Visitor

## Enum Class Hierarchy

- java.lang.Object
  - java.lang.Enum<E> (implements java.lang.Comparable<T>, java.lang.constant.Constable, java.io.Serializable)
    - org.apache.hadoop.hdfs.server.datanode.DataNodeLayoutVersion.Feature (implements org.apache.hadoop.hdfs.protocol.LayoutVersion.LayoutFeature)
    - org.apache.hadoop.hdfs.server.datanode.FileIoProvider.OPERATION