voldemort.store.slop.strategy
Class ConsistentHandoffStrategy

java.lang.Object
  voldemort.store.slop.strategy.ConsistentHandoffStrategy

All Implemented Interfaces:

HintedHandoffStrategy

public class ConsistentHandoffStrategy
extends java.lang.Object
implements HintedHandoffStrategy

A strategy which hands a hint off to any one of N nodes adjacent to the failed node in the ring, the list of the N nodes being static

Constructor Summary

ConsistentHandoffStrategy(Cluster cluster, int prefListSize, boolean enableZoneRouting, int clientZoneId)
Creates a consistent handoff strategy instance

Method Summary

java.util.List<Node>	routeHint(Node origin) Get an ordered "preference list" of nodes eligible to receive hints for a given node in case of that node's failure
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

ConsistentHandoffStrategy

public ConsistentHandoffStrategy(Cluster cluster,
                                 int prefListSize,
                                 boolean enableZoneRouting,
                                 int clientZoneId)

Creates a consistent handoff strategy instance

Parameters:

cluster - The cluster

prefListSize - The number of nodes adjacent to the failed node in the that could be selected to receive given hint

enableZoneRouting - is zone routing enabled?

clientZoneId - client zone id if zone routing is enabled

Method Detail

routeHint

public java.util.List<Node> routeHint(Node origin)

Description copied from interface: HintedHandoffStrategy

Get an ordered "preference list" of nodes eligible to receive hints for a given node in case of that node's failure

Specified by:

routeHint in interface HintedHandoffStrategy

Parameters:

origin - The original node which failed to receive the request

Returns:

The list of nodes eligible to receive hints for original node

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object