org.apache.hadoop.hdfs.server.namenode
Class INodeFileUnderConstruction

java.lang.Object
  org.apache.hadoop.hdfs.server.namenode.INode
      org.apache.hadoop.hdfs.server.namenode.INodeFile
          org.apache.hadoop.hdfs.server.namenode.INodeFileUnderConstruction

All Implemented Interfaces:

Comparable<byte[]>, org.apache.hadoop.hdfs.server.namenode.FSInodeInfo

public class INodeFileUnderConstruction
extends INodeFile

I-node for file being written.

Field Summary

Fields inherited from class org.apache.hadoop.hdfs.server.namenode.INodeFile

blocks, header

Fields inherited from class org.apache.hadoop.hdfs.server.namenode.INode

accessTime, modificationTime, name, parent

Method Summary

boolean	isUnderConstruction() Is this inode being constructed?
BlockInfoUnderConstruction	setLastBlock(BlockInfo lastBlock, org.apache.hadoop.hdfs.server.blockmanagement.DatanodeDescriptor[] targets) Convert the last block of the file to an under-construction block.

Methods inherited from class org.apache.hadoop.hdfs.server.namenode.INodeFile

getBlocks, getLastBlock, getPreferredBlockSize, getReplication, isDirectory, numBlocks, setBlock, setPermission, setPreferredBlockSize, setReplication

Methods inherited from class org.apache.hadoop.hdfs.server.namenode.INode

compareTo, computeContentSummary, equals, getAccessTime, getFsPermission, getFsPermissionShort, getFullPathName, getGroupName, getModificationTime, getPermissionStatus, getUserName, hashCode, isLink, setGroup, setPermissionStatus, setUser, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Method Detail

isUnderConstruction

public boolean isUnderConstruction()

Is this inode being constructed?

Overrides:

isUnderConstruction in class INode

setLastBlock

public BlockInfoUnderConstruction setLastBlock(BlockInfo lastBlock,
                                               org.apache.hadoop.hdfs.server.blockmanagement.DatanodeDescriptor[] targets)
                                        throws IOException

Convert the last block of the file to an under-construction block. Set its locations.

Throws:

IOException