Commit processing in distributed real-time database systems

被引：13
|
作者：
Gupta, R
Haritsa, J
Ramamritham, K
Seshadri, S
机构：
来源：
17TH IEEE REAL-TIME SYSTEMS SYMPOSIUM, PROCEEDINGS | 1996年
关键词：
D O I：
10.1109/REAL.1996.563719
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
We investigate here the performance implications of supporting transaction atomicity in a distributed real-time database system. Using a detailed simulation model of a firm-deadline distributed real-time database system, we profile the real-time performance of a representative set of commit protocols. A new commit protocol that is designed for the real-time domain and allows transactions to ''optimistically'' read uncommitted data is also proposed and evaluated. The experimental results show that data distribution has a significant influence on the real-time performance and that the choice of commit protocol clearly affects the magnitude of this influence. Among the protocols evaluated, the new optimistic commit protocol provides the best performance for a variety of workloads and system configurations.
引用
收藏
页码：220 / 229
页数：10
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