一种新的主从异步复制协议(英文)

作     者：杨朝红 宫云战 刘海燕 桑伟前 李庆艳 

作者单位：Department of Information Engineering Armored Force Engineering institute 

会议名称：《第十九届全国数据库学术会议》

会议日期：2002年

学科分类：12[管理学] 1201[管理学-管理科学与工程(可授管理学、工学学位)] 08[工学] 081201[工学-计算机系统结构] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：Supported by Visiting Scholar Foundation of Key Lab in University and National Lab of Switching Technology and Telecommunication Networks 

关 键 词：Data replication Serializability Primary lazy replica update protocol 

摘      要：Data is replicated at multiple network nodes for performance and *** copy lazy update protocols have become popular for their superior performance *** this paper,we propose a new primary lazy replica update protocol that guarantees serializability when the copy graph is a directed acyclic *** our protocol,the execution order of a secondary transaction is serialized by the PTES(Primary Transaction Executeing Sequence),which is the unique global transaction execution sequence in the *** also extend our protocol for arbitrary copy *** the copy graph contains cycles,system’s response time may increase for primary transaction may have to wait for a serializable *** remains a problem for current replication *** avoiding significant messaging overhead in the network,our protocol can achieve higher scalability.