【摘要】 针对传统的集中式复制结构存在的单点瓶颈和扩展性差等不足,提出了基于分布式结构的数据复制系统。通过将数据同步分散的复制到从节点,使得从节点能在单位时间内获得主节点的最大备份。通过从节点之间点对点的数据复制,使得在保证主从端数据一致性的同时,充分利用了从节点的资源,分散了主节点的负荷。更多还原

【Abstract】 The distributed structure of data replication is adopted to overcome the side effects introduced by the traditional type of centralized replication,such as bottleneck of critical elements and weak scalability.By propagating data from the primary to all the secondary synchronally,the secondary is able to acquire maximum backup of primary in relatively short time.The system also distributes the load of the original node into the whole system as well as guarantees the data consistency of all nodes.更多还原