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

使用LocatedBlock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.server.datanode
org.apache.hadoop.hdfs.server.namenode
org.apache.hadoop.hdfs.server.protocol

org.apache.hadoop.hdfs中LocatedBlock的使用

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

限定符和类型	方法和说明
void	DFSClient.reportBadBlocks(LocatedBlock[] blocks) Report corrupt blocks that were discovered by the client.

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

返回LocatedBlock的org.apache.hadoop.hdfs.protocol中的方法

限定符和类型	方法和说明
LocatedBlock	ClientProtocol.addBlock(String src, String clientName) 已过时。 use the 3-arg form below
LocatedBlock	ClientProtocol.addBlock(String src, String clientName, DatanodeInfo[] excludedNodes) A client that wants to write an additional block to the indicated filename (which must currently be open for writing) should call addBlock().
LocatedBlock	ClientProtocol.append(String src, String clientName) Append to the end of the file.
LocatedBlock	LocatedBlocks.get(int index) Get located block.
LocatedBlock	ClientDatanodeProtocol.recoverBlock(Block block, boolean keepLength, DatanodeInfo[] targets) Start generation-stamp recovery for specified block

返回变量类型为LocatedBlock的类型的org.apache.hadoop.hdfs.protocol中的方法

限定符和类型	方法和说明
List<LocatedBlock>	LocatedBlocks.getLocatedBlocks() Get located blocks.

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

限定符和类型	方法和说明
void	ClientProtocol.reportBadBlocks(LocatedBlock[] blocks) The client wants to report corrupted blocks (blocks with specified locations on datanodes).

类型变量类型为LocatedBlock的org.apache.hadoop.hdfs.protocol中的方法参数

限定符和类型	方法和说明
void	LocatedBlocks.insertRange(int blockIdx, List<LocatedBlock> newBlocks)

类型变量类型为LocatedBlock的org.apache.hadoop.hdfs.protocol中的构造器参数

构造器和说明
LocatedBlocks(long flength, List<LocatedBlock> blks, boolean isUnderConstuction)

org.apache.hadoop.hdfs.server.datanode中LocatedBlock的使用

返回LocatedBlock的org.apache.hadoop.hdfs.server.datanode中的方法

限定符和类型	方法和说明
LocatedBlock	DataNode.recoverBlock(Block block, boolean keepLength, DatanodeInfo[] targets) Start generation-stamp recovery for specified block

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

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

限定符和类型	方法和说明
LocatedBlock	NameNode.addBlock(String src, String clientName) Stub for 0.20 clients that don't support HDFS-630
LocatedBlock	NameNode.addBlock(String src, String clientName, DatanodeInfo[] excludedNodes)
LocatedBlock	NameNode.append(String src, String clientName) Append to the end of the file.
LocatedBlock	FSNamesystem.getAdditionalBlock(String src, String clientName) Stub for old callers pre-HDFS-630
LocatedBlock	FSNamesystem.getAdditionalBlock(String src, String clientName, HashMap<Node,Node> excludedNodes) The client would like to obtain an additional block for the indicated filename (which is being written-to).

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

限定符和类型	方法和说明
static DatanodeInfo	JspHelper.bestNode(LocatedBlock blk)
void	NameNode.reportBadBlocks(LocatedBlock[] blocks) The client has detected an error on the specified located blocks and is reporting them to the server.
int	BlockPlacementPolicyDefault.verifyBlockPlacement(String srcPath, LocatedBlock lBlk, int minRacks) Verify that the block is replicated on at least minRacks different racks if there is more than minRacks rack in the system.
abstract int	BlockPlacementPolicy.verifyBlockPlacement(String srcPath, LocatedBlock lBlk, int minRacks) Verify that the block is replicated on at least minRacks different racks if there is more than minRacks rack in the system.

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

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

限定符和类型	方法和说明
void	DatanodeProtocol.reportBadBlocks(LocatedBlock[] blocks) same as ClientProtocol.reportBadBlocks(LocatedBlock[]) }