Uses of Package org.apache.hadoop.hdfs.protocol (Apache Hadoop Main 3.5.0 API)
Description: use: package: org.apache.hadoop.hdfs.protocol

# Uses of Package
org.apache.hadoop.hdfs.protocol

Packages that use org.apache.hadoop.hdfs.protocol
Package
Description
org.apache.hadoop.hdfs
A distributed implementation of `FileSystem`.
org.apache.hadoop.hdfs.client
This package provides the administrative APIs for HDFS.
org.apache.hadoop.hdfs.protocol
Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements.
org.apache.hadoop.hdfs.server.aliasmap
org.apache.hadoop.hdfs.server.common
org.apache.hadoop.hdfs.server.datanode
org.apache.hadoop.hdfs.server.namenode

- Classes in org.apache.hadoop.hdfs.protocol used by org.apache.hadoop.hdfs
  Class
  Description
  LocatedBlock
  Associates a block with the Datanodes that contain its replicas and other block metadata (E.g. the file offset associated with this block, whether it is corrupt, a location is cached in memory, security token, etc).
- Classes in org.apache.hadoop.hdfs.protocol used by org.apache.hadoop.hdfs.client
  Class
  Description
  AddErasureCodingPolicyResponse
  A response of add an ErasureCoding policy.
  CacheDirectiveEntry
  Describes a path-based cache directive entry.
  CacheDirectiveInfo
  Describes a path-based cache directive.
  CachePoolEntry
  Describes a Cache Pool entry.
  CachePoolInfo
  CachePoolInfo describes a cache pool.
  DatanodeInfo
  This class extends the primary identifier of a Datanode with ephemeral state, eg usage information, current administrative state, and the network location that is communicated to clients.
  EncryptionZone
  A simple class for representing an encryption zone.
  ErasureCodingPolicy
  A policy about how to write/read/code an erasure coding file.
  ErasureCodingPolicyInfo
  HDFS internal presentation of a `ErasureCodingPolicy`.
  ExtendedBlock
  Identifies a Block uniquely across the block pools
  HdfsConstants.ReencryptAction
  Re-encrypt encryption zone actions.
  LocatedBlock
  Associates a block with the Datanodes that contain its replicas and other block metadata (E.g. the file offset associated with this block, whether it is corrupt, a location is cached in memory, security token, etc).
  OpenFileEntry
  An open file entry for use by DFSAdmin commands.
  OpenFilesIterator.OpenFilesType
  Open file types to filter the results.
  ZoneReencryptionStatus
  A class representing information about re-encryption of an encryption zone.
- Classes in org.apache.hadoop.hdfs.protocol used by org.apache.hadoop.hdfs.protocol
  Class
  Description
  BlockType
  Type of a block.
  CacheDirectiveInfo
  Describes a path-based cache directive.
  CacheDirectiveInfo.Expiration
  Denotes a relative or absolute expiration time for a CacheDirective.
  CacheDirectiveStats
  Describes a path-based cache directive.
  CachePoolInfo
  CachePoolInfo describes a cache pool.
  CachePoolStats
  CachePoolStats describes cache pool statistics.
  DatanodeInfo.AdminStates
  ECBlockGroupStats
  Get statistics pertaining to blocks of type `BlockType.STRIPED` in the filesystem.
  HdfsConstants.DatanodeReportType
  HdfsConstants.ReencryptAction
  Re-encrypt encryption zone actions.
  HdfsConstants.RollingUpgradeAction
  HdfsConstants.SafeModeAction
  HdfsConstants.StoragePolicy
  This enum wraps above Storage Policy ID and name.
  HdfsConstants.StoragePolicySatisfierMode
  Storage policy satisfier service modes.
  HdfsConstants.UpgradeAction
  Upgrade actions.
  HdfsFileStatus.Flags
  Set of features potentially active on an instance.
  LayoutVersion.Feature
  Enums for features that change the layout version before rolling upgrade is supported.
  LayoutVersion.FeatureInfo
  Feature information.
  OpenFilesIterator.OpenFilesType
  Open file types to filter the results.
  QuotaExceededException
  This exception is thrown when modification to HDFS results in violation of a directory quota.
  ReplicatedBlockStats
  Get statistics pertaining to blocks of type `BlockType.CONTIGUOUS` in the filesystem.
  SnapshotDiffReport.DiffType
  Types of the difference, which include CREATE, MODIFY, DELETE, and RENAME.
  ZoneReencryptionStatus.State
  State of re-encryption.
- Classes in org.apache.hadoop.hdfs.protocol used by org.apache.hadoop.hdfs.server.aliasmap
  Class
  Description
  Block
  A Block is a Hadoop FS primitive, identified by its block ID (a long).
  ProvidedStorageLocation
  ProvidedStorageLocation is a location in an external storage system containing the data for a block (~Replica).
- Classes in org.apache.hadoop.hdfs.protocol used by org.apache.hadoop.hdfs.server.common
  Class
  Description
  Block
  A Block is a Hadoop FS primitive, identified by its block ID (a long).
  ProvidedStorageLocation
  ProvidedStorageLocation is a location in an external storage system containing the data for a block (~Replica).
- Classes in org.apache.hadoop.hdfs.protocol used by org.apache.hadoop.hdfs.server.datanode
  Class
  Description
  LayoutVersion.FeatureInfo
  Feature information.
- Classes in org.apache.hadoop.hdfs.protocol used by org.apache.hadoop.hdfs.server.namenode
  Class
  Description
  LayoutVersion.FeatureInfo
  Feature information.