org.apache.hadoop.hdfs.server.namenode

类 CorruptReplicasMap

java.lang.Object

org.apache.hadoop.hdfs.server.namenode.CorruptReplicasMap

public class CorruptReplicasMap
extends Object

Stores information about all corrupt blocks in the File System. A Block is considered corrupt only if all of its replicas are corrupt. While reporting replicas of a Block, we hide any corrupt copies. These copies are removed once Block is found to have expected number of good replicas. Mapping: Block -> TreeSet

构造器概要

构造器

构造器和说明
CorruptReplicasMap()

方法概要

方法

限定符和类型	方法和说明
void	addToCorruptReplicasMap(Block blk, DatanodeDescriptor dn) Mark the block belonging to datanode as corrupt.
int	numCorruptReplicas(Block blk)
int	size()

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细资料

CorruptReplicasMap

public CorruptReplicasMap()

方法详细资料

addToCorruptReplicasMap

public void addToCorruptReplicasMap(Block blk,
                           DatanodeDescriptor dn)

Mark the block belonging to datanode as corrupt.

参数:

blk - Block to be added to CorruptReplicasMap

dn - DatanodeDescriptor which holds the corrupt replica

numCorruptReplicas

public int numCorruptReplicas(Block blk)

size

public int size()