標題: 一個以Quorum為基礎的複本控制演算法
A New Quorum-Based Replica Control Algorithm
作者: 吳昱亭
Wu, Yu-Ting
袁賢銘
Shyan-Ming Yuan
資訊科學與工程研究所
關鍵字: 資料複製;可用性;分散式系統;資料一致性;複本控制演算法;Data replication;Availability;Distributed system;Data consistency;Replica control algorithm;Quorum
公開日期: 1995
摘要: 在分散式系統中, 資料常被複製成多份儲存在不同的地方來增加容錯能
力, 複本控制演算法可以用來協調複製資料的一致性. 本篇論文提出一個
新的以quorum為基礎的複本控制演算法, 其特性為可適用於任意數目的複
本個數, 且能維持高availability的要求, 而quo-rum大小為 O(square
root N); 再者, 我們的演算法是相當對稱的, 即每個節點所參與的
quorum個數幾乎是相同的. 最後在本文中會將我們的演算法與其它相關以
quorum為基礎的演算法做比較.
We present a new quorum-based algorithm for managing replicated
data. Existingalgorithms are designed to achieve high
availability, but somehow they haverestrictions on the number
of replicas. The primary goal of our design is tofind a
protocol suitable for any number of replicas. Let N denote the
numberof replicas in the system. The quorum size is O (square
root N), which is thesame as grid protocol. Our protocol is
also almost symmetric because each nodejoins almost the same
number of quorums, i.e., each node takes nearly the
sameresponsibility. A comparison between our algorithm and
related quorum-basedones is also discussed.
URI: http://140.113.39.130/cdrfb3/record/nctu/#NT840394036
http://hdl.handle.net/11536/60479
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