Parallel recovery method in shared-nothing spatial database cluster system  

作　　者：YOU Byeong seob  KIM Myung keun  ZOU Yong gui  BAE Hae young 

机构地区：[1]Dept. of Computer Science & Engineering, INHA UniversityYounghyun dong, Nam ku, Inchon, 402 751, Korea,Dept. of Computer Science & Engineering, INHA UniversityYounghyun dong, Nam ku, Inchon, 402 751, Korea,College of Computer Science, Chongqing Univ. of Posts & Telecom., Chongqing, 400065,P.R.China,Dept. of Computer Science & Engineering, INHA UniversityYounghyun dong, Nam ku, Inchon, 402 751, Korea

出　　处：《重庆邮电学院学报（自然科学版）》2004年第5期173-180,共8页Journal of Chongqing University of Posts and Telecommunications(Natural Sciences Edition)

基　　金：This work is supported by University IT Research Center Project

摘　　要：Shared nothing spatial database cluster system provides high availability since a replicated node can continue service even if any node in cluster system was crashed. However if the failed node wouldn’t be recovered quickly, whole system performance will decrease since the other nodes must process the queries which the failed node may be processed. Therefore the recovery of cluster system is very important to provide the stable service. In most previous proposed techniques, external logs should be recorded in all nodes even if the failed node does not exist. So update transactions are processed slowly. Also recovery time of the failed node increases since a single storage for all database is used to record external logs in each node. Therefore we propose a parallel recovery method for recovering the failed node quickly.Shared nothing spatial database cluster system provides high availability since a replicated node can continue service even if any node in cluster system was crashed. However if the failed node wouldn't be recovered quickly, whole system performance will decrease since the other nodes must process the queries which the failed node may be processed. Therefore the recovery of cluster system is very important to provide the stable service. In most previous proposed techniques, external logs should be recorded in all nodes even if the failed node does not exist. So update transactions are processed slowly. Also recovery time of the failed node increases since a single storage for all database is used to record external logs in each node. Therefore we propose a parallel recovery method for recovering the failed node quickly.

关 键 词：平行记录方法 串系统 GMS/Cluster 空间数据库 共享 

分 类 号：TP392[自动化与计算机技术—计算机应用技术]