类 org.apache.hadoop.hdfs.protocol.DatanodeID
的使用

使用DatanodeID的程序包

程序包	说明
org.apache.hadoop.hdfs.protocol
org.apache.hadoop.hdfs.server.namenode
org.apache.hadoop.hdfs.server.protocol

org.apache.hadoop.hdfs.protocol中DatanodeID的使用

org.apache.hadoop.hdfs.protocol中DatanodeID的子类

限定符和类型	类和说明
class	DatanodeInfo DatanodeInfo represents the status of a DataNode.

声明为DatanodeID的org.apache.hadoop.hdfs.protocol中的字段

限定符和类型	字段和说明
static DatanodeID[]	DatanodeID.EMPTY_ARRAY

参数类型为DatanodeID的org.apache.hadoop.hdfs.protocol中的方法

限定符和类型	方法和说明
int	DatanodeID.compareTo(DatanodeID that) Comparable.
void	DatanodeID.updateRegInfo(DatanodeID nodeReg) Update fields when a new registration request comes in.

参数类型为DatanodeID的org.apache.hadoop.hdfs.protocol中的构造器

构造器和说明
DatanodeID(DatanodeID from) DatanodeID copy constructor
DatanodeInfo(DatanodeID nodeID)
DatanodeInfo(DatanodeID nodeID, String location, String hostName)
UnregisteredDatanodeException(DatanodeID nodeID)
UnregisteredDatanodeException(DatanodeID nodeID, DatanodeInfo storedNode)

org.apache.hadoop.hdfs.server.namenode中DatanodeID的使用

org.apache.hadoop.hdfs.server.namenode中DatanodeID的子类

限定符和类型	类和说明
class	DatanodeDescriptor DatanodeDescriptor tracks stats on a given DataNode, such as available storage capacity, last update time, etc., and maintains a set of blocks stored on the datanode.

返回DatanodeID的org.apache.hadoop.hdfs.server.namenode中的方法

限定符和类型	方法和说明
DatanodeID	JspHelper.randomNode()

参数类型为DatanodeID的org.apache.hadoop.hdfs.server.namenode中的方法

限定符和类型	方法和说明
void	FSNamesystem.blockReceived(DatanodeID nodeID, Block block, String delHint) The given node is reporting that it received a certain block.
void	NameNode.commitBlockSynchronization(Block block, long newgenerationstamp, long newlength, boolean closeFile, boolean deleteblock, DatanodeID[] newtargets) Commit block synchronization in lease recovery
void	FSNamesystem.commitBlockSynchronization(Block lastblock, long newgenerationstamp, long newlength, boolean closeFile, boolean deleteblock, DatanodeID[] newtargets)
DatanodeDescriptor	FSNamesystem.getDatanode(DatanodeID nodeID) Get data node by storage ID.
void	FSNamesystem.processBlocksBeingWrittenReport(DatanodeID nodeID, BlockListAsLongs blocksBeingWritten) It will update the targets for INodeFileUnderConstruction
void	FSNamesystem.processReport(DatanodeID nodeID, BlockListAsLongs newReport) The given node is reporting all its blocks.
void	FSNamesystem.removeDatanode(DatanodeID nodeID) remove a datanode descriptor

参数类型为DatanodeID的org.apache.hadoop.hdfs.server.namenode中的构造器

构造器和说明
DatanodeDescriptor(DatanodeID nodeID) DatanodeDescriptor constructor
DatanodeDescriptor(DatanodeID nodeID, long capacity, long dfsUsed, long remaining, int xceiverCount) DatanodeDescriptor constructor
DatanodeDescriptor(DatanodeID nodeID, String networkLocation) DatanodeDescriptor constructor
DatanodeDescriptor(DatanodeID nodeID, String networkLocation, String hostName) DatanodeDescriptor constructor
DatanodeDescriptor(DatanodeID nodeID, String networkLocation, String hostName, long capacity, long dfsUsed, long remaining, int xceiverCount) DatanodeDescriptor constructor

org.apache.hadoop.hdfs.server.protocol中DatanodeID的使用

org.apache.hadoop.hdfs.server.protocol中DatanodeID的子类

限定符和类型	类和说明
class	DatanodeRegistration DatanodeRegistration class conatins all information the Namenode needs to identify and verify a Datanode when it contacts the Namenode.

参数类型为DatanodeID的org.apache.hadoop.hdfs.server.protocol中的方法

限定符和类型	方法和说明
void	DatanodeProtocol.commitBlockSynchronization(Block block, long newgenerationstamp, long newlength, boolean closeFile, boolean deleteblock, DatanodeID[] newtargets) Commit block synchronization in lease recovery

参数类型为DatanodeID的org.apache.hadoop.hdfs.server.protocol中的构造器

构造器和说明
DisallowedDatanodeException(DatanodeID nodeID)