A recovery method using recently updated record information in shared-nothing spatial database cluster  

作　　者：JEONG Myeong ho JANG Yong ll PARK Soon young BAE Hae young 

机构地区：[1]Dept. of Computer Science and Engineering, Inha University,Korea,Dept. of Computer Science and Engineering, Inha University,Korea,Dept. of Computer Science and Engineering, Inha University,Korea,Dept. of Computer Science and Engineering, Inha University,Korea

出　　处：《重庆邮电学院学报（自然科学版）》2004年第5期32-35,共4页Journal of Chongqing University of Posts and Telecommunications(Natural Sciences Edition)

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

摘　　要：A shared nothing spatial database cluster is system that provides continuous service even if some system failure happens in any node. So, an efficient recovery of system failure is very important. Generally, the existing method recovers the failed node by using both cluster log and local log. This method, however, cause several problems that increase communication cost and size of cluster log. This paper proposes novel recovery method using recently updated record information in shared nothing spatial database cluster. The proposed technique utilizes update information of records and pointers of actual data. This makes a reduction of log size and communication cost. Consequently, this reduces recovery time of failed node due to less processing of update operations.A shared nothing spatial database cluster is system that provides continuous service even if some system failure happens in any node. So, an efficient recovery of system failure is very important. Generally, the existing method recovers the failed node by using both cluster log and local log. This method, however, cause several problems that increase communication cost and size of cluster log. This paper proposes novel recovery method using recently updated record information in shared nothing spatial database cluster. The proposed technique utilizes update information of records and pointers of actual data. This makes a reduction of log size and communication cost. Consequently, this reduces recovery time of failed node due to less processing of update operations.

关 键 词：空间数据库 日志文件 记录系统 串 最近更新记录 

分 类 号：TP311.13[自动化与计算机技术—计算机软件与理论] TP392[自动化与计算机技术—计算机科学与技术]