Package org.apache.hadoop.hdfs.protocol

package org.apache.hadoop.hdfs.protocol

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Related Packages

Package	Description
org.apache.hadoop.hdfs	A distributed implementation of FileSystem.
org.apache.hadoop.hdfs.protocol.datatransfer	This package contains classes related to hdfs data transfer protocol.
org.apache.hadoop.hdfs.protocol.proto

Class	Description
org.apache.hadoop.hdfs.protocol.AclException	Indicates a failure manipulating an ACL.
org.apache.hadoop.hdfs.protocol.AddErasureCodingPolicyResponse	A response of add an ErasureCoding policy.
org.apache.hadoop.hdfs.protocol.AlreadyBeingCreatedException	The exception that happens when you ask to create a file that already is being created, but is not closed yet.
org.apache.hadoop.hdfs.protocol.BatchedDirectoryListing	A struct-like class for holding partial listings returned by the batched listing API.
org.apache.hadoop.hdfs.protocol.Block	A Block is a Hadoop FS primitive, identified by its block ID (a long).
org.apache.hadoop.hdfs.protocol.BlockChecksumOptions	Encapsulates various options related to how fine-grained data checksums are combined into block-level checksums.
org.apache.hadoop.hdfs.protocol.BlockChecksumType	Algorithms/types denoting how block-level checksums are computed using lower-level chunk checksums/CRCs.
org.apache.hadoop.hdfs.protocol.BlockListAsLongs
org.apache.hadoop.hdfs.protocol.BlockListAsLongs.BlockReportReplica
org.apache.hadoop.hdfs.protocol.BlockListAsLongs.Builder
org.apache.hadoop.hdfs.protocol.BlockLocalPathInfo	A block and the full path information to the block data file and the metadata file stored on the local file system.
org.apache.hadoop.hdfs.protocol.BlockStoragePolicy	A block storage policy describes how to select the storage types for the replicas of a block.
BlockType	Type of a block.
org.apache.hadoop.hdfs.protocol.CacheDirective	Namenode class that tracks state related to a cached path.
CacheDirectiveEntry	Describes a path-based cache directive entry.
CacheDirectiveInfo	Describes a path-based cache directive.
org.apache.hadoop.hdfs.protocol.CacheDirectiveInfo.Builder	A builder for creating new CacheDirectiveInfo instances.
org.apache.hadoop.hdfs.protocol.CacheDirectiveInfo.Expiration	Denotes a relative or absolute expiration time for a CacheDirective.
org.apache.hadoop.hdfs.protocol.CacheDirectiveIterator	CacheDirectiveIterator is a remote iterator that iterates cache directives.
CacheDirectiveStats	Describes a path-based cache directive.
org.apache.hadoop.hdfs.protocol.CacheDirectiveStats.Builder
CachePoolEntry	Describes a Cache Pool entry.
CachePoolInfo	CachePoolInfo describes a cache pool.
org.apache.hadoop.hdfs.protocol.CachePoolIterator	CachePoolIterator is a remote iterator that iterates cache pools.
CachePoolStats	CachePoolStats describes cache pool statistics.
org.apache.hadoop.hdfs.protocol.CachePoolStats.Builder
org.apache.hadoop.hdfs.protocol.ClientDatanodeProtocol	An client-datanode protocol for block recovery
org.apache.hadoop.hdfs.protocol.ClientProtocol	ClientProtocol is used by user code via the DistributedFileSystem class to communicate with the NameNode.
org.apache.hadoop.hdfs.protocol.CorruptFileBlocks	Contains a list of paths corresponding to corrupt files and a cookie used for iterative calls to NameNode.listCorruptFileBlocks.
org.apache.hadoop.hdfs.protocol.DatanodeAdminProperties	The class describes the configured admin properties for a datanode.
org.apache.hadoop.hdfs.protocol.DatanodeID	This class represents the primary identifier for a Datanode.
org.apache.hadoop.hdfs.protocol.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.
DatanodeInfo.AdminStates
org.apache.hadoop.hdfs.protocol.DatanodeInfo.DatanodeInfoBuilder	Building the DataNodeInfo.
org.apache.hadoop.hdfs.protocol.DatanodeInfoWithStorage
org.apache.hadoop.hdfs.protocol.DatanodeLocalInfo	Locally available datanode information
org.apache.hadoop.hdfs.protocol.DatanodeVolumeInfo	Locally available datanode volume information.
org.apache.hadoop.hdfs.protocol.DirectoryListing	This class defines a partial listing of a directory to support iterative directory listing.
DSQuotaExceededException
ECBlockGroupStats	Get statistics pertaining to blocks of type BlockType.STRIPED in the filesystem.
org.apache.hadoop.hdfs.protocol.ECTopologyVerifierResult	Result of the verification whether the current cluster setup can support all enabled EC policies.
EncryptionZone	A simple class for representing an encryption zone.
org.apache.hadoop.hdfs.protocol.EncryptionZoneIterator	EncryptionZoneIterator is a remote iterator that iterates over encryption zones.
org.apache.hadoop.hdfs.protocol.ErasureCodingPolicy	A policy about how to write/read/code an erasure coding file.
org.apache.hadoop.hdfs.protocol.ErasureCodingPolicyInfo	HDFS internal presentation of a ErasureCodingPolicy.
org.apache.hadoop.hdfs.protocol.ErasureCodingPolicyState	Value denotes the possible states of an ErasureCodingPolicy.
org.apache.hadoop.hdfs.protocol.ExtendedBlock	Identifies a Block uniquely across the block pools
FSLimitException
org.apache.hadoop.hdfs.protocol.FSLimitException.MaxDirectoryItemsExceededException	Directory has too many items
org.apache.hadoop.hdfs.protocol.FSLimitException.PathComponentTooLongException	Path component length is too long
org.apache.hadoop.hdfs.protocol.FsPermissionExtension	Deprecated. ACLs, encryption, and erasure coding are managed on FileStatus.
org.apache.hadoop.hdfs.protocol.HdfsConstants
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.
org.apache.hadoop.hdfs.protocol.HdfsFileStatus	HDFS metadata for an entity in the filesystem.
org.apache.hadoop.hdfs.protocol.HdfsFileStatus.Builder	Builder class for HdfsFileStatus instances.
HdfsFileStatus.Flags	Set of features potentially active on an instance.
org.apache.hadoop.hdfs.protocol.HdfsLocatedFileStatus	HDFS metadata for an entity in the filesystem with locations.
org.apache.hadoop.hdfs.protocol.HdfsNamedFileStatus	HDFS metadata for an entity in the filesystem without locations.
org.apache.hadoop.hdfs.protocol.HdfsPartialListing	A partial listing returned by the batched listing API.
org.apache.hadoop.hdfs.protocol.HdfsPathHandle	Opaque handle to an entity in HDFS.
org.apache.hadoop.hdfs.protocol.LastBlockWithStatus	Class to contain Lastblock and HdfsFileStatus for the Append operation
org.apache.hadoop.hdfs.protocol.LayoutFlags	LayoutFlags represent features which the FSImage and edit logs can either support or not, independently of layout version.
org.apache.hadoop.hdfs.protocol.LayoutVersion	This class tracks changes in the layout version of HDFS.
LayoutVersion.Feature	Enums for features that change the layout version before rolling upgrade is supported.
org.apache.hadoop.hdfs.protocol.LayoutVersion.FeatureInfo	Feature information.
org.apache.hadoop.hdfs.protocol.LayoutVersion.LayoutFeature	The interface to be implemented by NameNode and DataNode layout features
org.apache.hadoop.hdfs.protocol.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).
org.apache.hadoop.hdfs.protocol.LocatedBlocks	Collection of blocks with their locations and the file length.
org.apache.hadoop.hdfs.protocol.LocatedStripedBlock	LocatedBlock with striped block support.
org.apache.hadoop.hdfs.protocol.NoECPolicySetException	Thrown when no EC policy is set explicitly on the directory.
NSQuotaExceededException
org.apache.hadoop.hdfs.protocol.OpenFileEntry	An open file entry for use by DFSAdmin commands.
org.apache.hadoop.hdfs.protocol.OpenFilesIterator	OpenFilesIterator is a remote iterator that iterates over the open files list managed by the NameNode.
OpenFilesIterator.OpenFilesType	Open file types to filter the results.
org.apache.hadoop.hdfs.protocol.ProvidedStorageLocation	ProvidedStorageLocation is a location in an external storage system containing the data for a block (~Replica).
QuotaByStorageTypeExceededException
QuotaExceededException	This exception is thrown when modification to HDFS results in violation of a directory quota.
org.apache.hadoop.hdfs.protocol.ReconfigurationProtocol	ReconfigurationProtocol is used by HDFS admin to reload configuration for NN/DN without restarting them.
org.apache.hadoop.hdfs.protocol.RecoveryInProgressException	Exception indicating that a replica is already being recovery.
org.apache.hadoop.hdfs.protocol.ReencryptionStatus	A class representing information about re-encrypting encryption zones.
org.apache.hadoop.hdfs.protocol.ReencryptionStatusIterator	ReencryptionStatusIterator is a remote iterator that iterates over the reencryption status of encryption zones.
ReplicatedBlockStats	Get statistics pertaining to blocks of type BlockType.CONTIGUOUS in the filesystem.
org.apache.hadoop.hdfs.protocol.RollingUpgradeException	Exception related to rolling upgrade.
org.apache.hadoop.hdfs.protocol.RollingUpgradeInfo	Rolling upgrade information
org.apache.hadoop.hdfs.protocol.RollingUpgradeInfo.Bean
org.apache.hadoop.hdfs.protocol.RollingUpgradeStatus	Rolling upgrade status
org.apache.hadoop.hdfs.protocol.SnapshotAccessControlException	Snapshot access related exception.
org.apache.hadoop.hdfs.protocol.SnapshotDiffReport	This class represents to end users the difference between two snapshots of the same directory, or the difference between a snapshot of the directory and its current state.
org.apache.hadoop.hdfs.protocol.SnapshotDiffReport.DiffReportEntry	Representing the full path and diff type of a file/directory where changes have happened.
org.apache.hadoop.hdfs.protocol.SnapshotDiffReport.DiffStats	Records the stats related to Snapshot diff operation.
SnapshotDiffReport.DiffType	Types of the difference, which include CREATE, MODIFY, DELETE, and RENAME.
org.apache.hadoop.hdfs.protocol.SnapshotDiffReportListing	This class represents to the difference between two snapshots of the same directory, or the difference between a snapshot of the directory and its current state.
org.apache.hadoop.hdfs.protocol.SnapshotDiffReportListing.DiffReportListingEntry	Representing the full path and diff type of a file/directory where changes have happened.
org.apache.hadoop.hdfs.protocol.SnapshotException	Snapshot related exception.
org.apache.hadoop.hdfs.protocol.SnapshotInfo	SnapshotInfo maintains information for a snapshot
org.apache.hadoop.hdfs.protocol.SnapshotInfo.Bean
org.apache.hadoop.hdfs.protocol.SnapshotStatus	Metadata about a snapshottable directory.
org.apache.hadoop.hdfs.protocol.SnapshottableDirectoryStatus	Metadata about a snapshottable directory
org.apache.hadoop.hdfs.protocol.SnapshottableDirectoryStatus.Bean
org.apache.hadoop.hdfs.protocol.StripedBlockInfo	Striped block info that can be sent elsewhere to do block group level things, like checksum, and etc.
org.apache.hadoop.hdfs.protocol.SystemErasureCodingPolicies	The set of built-in erasure coding policies.
org.apache.hadoop.hdfs.protocol.UnregisteredNodeException	This exception is thrown when a node that has not previously registered is trying to access the name node.
org.apache.hadoop.hdfs.protocol.UnresolvedPathException	Thrown when a symbolic link is encountered in a path.
org.apache.hadoop.hdfs.protocol.XAttrNotFoundException	The exception that happens when you ask to get a non existing XAttr.
org.apache.hadoop.hdfs.protocol.ZoneReencryptionStatus	A class representing information about re-encryption of an encryption zone.
org.apache.hadoop.hdfs.protocol.ZoneReencryptionStatus.Builder	Builder of ZoneReencryptionStatus.
ZoneReencryptionStatus.State	State of re-encryption.