程序包 org.apache.hadoop.hdfs.protocol
的使用

使用org.apache.hadoop.hdfs.protocol的程序包

程序包	说明
org.apache.hadoop.hdfs	A distributed implementation of FileSystem.
org.apache.hadoop.hdfs.protocol
org.apache.hadoop.hdfs.security.token.block
org.apache.hadoop.hdfs.server.datanode
org.apache.hadoop.hdfs.server.namenode
org.apache.hadoop.hdfs.server.protocol
org.apache.hadoop.hdfs.web

org.apache.hadoop.hdfs使用的org.apache.hadoop.hdfs.protocol中的类

类和说明
Block A Block is a Hadoop FS primitive, identified by a long.
ClientProtocol ClientProtocol is used by user code via DistributedFileSystem class to communicate with the NameNode.
DatanodeInfo DatanodeInfo represents the status of a DataNode.
DirectoryListing This class defines a partial listing of a directory to support iterative directory listing.
FSConstants Some handy constants
FSConstants.DatanodeReportType
FSConstants.SafeModeAction
FSConstants.UpgradeAction Distributed upgrade actions: 1.
HdfsFileStatus Interface that represents the over the wire information for a file.
LocatedBlock A LocatedBlock is a pair of Block, DatanodeInfo[] objects.
LocatedBlocks Collection of blocks with their locations and the file length.

org.apache.hadoop.hdfs.protocol使用的org.apache.hadoop.hdfs.protocol中的类

类和说明
Block A Block is a Hadoop FS primitive, identified by a long.
BlockLocalPathInfo A block and the full path information to the block data file and the metadata file stored on the local file system.
DatanodeID DatanodeID is composed of the data node name (hostname:portNumber) and the data storage ID, which it currently represents.
DatanodeInfo DatanodeInfo represents the status of a DataNode.
DatanodeInfo.AdminStates
DirectoryListing This class defines a partial listing of a directory to support iterative directory listing.
FSConstants.DatanodeReportType
FSConstants.SafeModeAction
FSConstants.UpgradeAction Distributed upgrade actions: 1.
HdfsFileStatus Interface that represents the over the wire information for a file.
LayoutVersion.Feature Enums for features that change the layout version.
LocatedBlock A LocatedBlock is a pair of Block, DatanodeInfo[] objects.
LocatedBlocks Collection of blocks with their locations and the file length.
QuotaExceededException This exception is thrown when modification to HDFS results in violation of a directory quota.

org.apache.hadoop.hdfs.security.token.block使用的org.apache.hadoop.hdfs.protocol中的类

类和说明
Block A Block is a Hadoop FS primitive, identified by a long.

org.apache.hadoop.hdfs.server.datanode使用的org.apache.hadoop.hdfs.protocol中的类

类和说明
Block A Block is a Hadoop FS primitive, identified by a long.
BlockLocalPathInfo A block and the full path information to the block data file and the metadata file stored on the local file system.
ClientDatanodeProtocol An client-datanode protocol for block recovery
DatanodeInfo DatanodeInfo represents the status of a DataNode.
FSConstants Some handy constants
LocatedBlock A LocatedBlock is a pair of Block, DatanodeInfo[] objects.

org.apache.hadoop.hdfs.server.namenode使用的org.apache.hadoop.hdfs.protocol中的类

类和说明
Block A Block is a Hadoop FS primitive, identified by a long.
BlockListAsLongs This class provides an interface for accessing list of blocks that has been implemented as long[].
ClientProtocol ClientProtocol is used by user code via DistributedFileSystem class to communicate with the NameNode.
DatanodeID DatanodeID is composed of the data node name (hostname:portNumber) and the data storage ID, which it currently represents.
DatanodeInfo DatanodeInfo represents the status of a DataNode.
DirectoryListing This class defines a partial listing of a directory to support iterative directory listing.
FSConstants Some handy constants
FSConstants.DatanodeReportType
FSConstants.SafeModeAction
FSConstants.UpgradeAction Distributed upgrade actions: 1.
HdfsFileStatus Interface that represents the over the wire information for a file.
LocatedBlock A LocatedBlock is a pair of Block, DatanodeInfo[] objects.
LocatedBlocks Collection of blocks with their locations and the file length.

org.apache.hadoop.hdfs.server.protocol使用的org.apache.hadoop.hdfs.protocol中的类

类和说明
Block A Block is a Hadoop FS primitive, identified by a long.
DatanodeID DatanodeID is composed of the data node name (hostname:portNumber) and the data storage ID, which it currently represents.
DatanodeInfo DatanodeInfo represents the status of a DataNode.
LocatedBlock A LocatedBlock is a pair of Block, DatanodeInfo[] objects.

org.apache.hadoop.hdfs.web使用的org.apache.hadoop.hdfs.protocol中的类

类和说明
HdfsFileStatus Interface that represents the over the wire information for a file.
LocatedBlocks Collection of blocks with their locations and the file length.