org.apache.hadoop.hdfs.server.blockmanagement
Class NumberReplicas

java.lang.Object
  org.apache.hadoop.hdfs.server.blockmanagement.NumberReplicas

public class NumberReplicas
extends Object

A immutable object that stores the number of live replicas and the number of decommissined Replicas.

Method Summary

int	corruptReplicas()
int	decommissionedReplicas()
int	excessReplicas()
int	liveReplicas()
int	replicasOnStaleNodes()

Methods inherited from class java.lang.Object

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

Method Detail

liveReplicas

public int liveReplicas()

decommissionedReplicas

public int decommissionedReplicas()

corruptReplicas

public int corruptReplicas()

excessReplicas

public int excessReplicas()

replicasOnStaleNodes

public int replicasOnStaleNodes()

Returns:

the number of replicas which are on stale nodes. This is not mutually exclusive with the other counts -- ie a replica may count as both "live" and "stale".