Kwang Rok Han, Seung Won Lee

The KIPS Transactions:PartD, Vol. 8, No. 5, pp. 605-612, Oct. 2001
10.3745/KIPSTD.2001.8.5.605,   PDF Download:

Abstract

In order to solve the overload of academic affairs management system, we propose a method that builds a distributed Replication server and uses this server with the present centralized system. Normal query transactions which are not required for data modification are composed of almost all DML sentences. So we construct the distributed replication servers according to the data characteristics and make them perform the query transaction without modification. In this way, we can simultaneously distribute users and data, and cut down processing time for every transactions. Also Replication server has the advantages of implemental efficiency and economical benefit because it uses resources of present centralized system without any additional configurations. Usually, to distribute the overload of server, they can use one way, Client-side overload distribution that user program get present overload status then can choose a less overloaded server, and the other way, Server-side overload distribution that make use of Application Layer Scheduling Technique and IP Layer Scheduling Technique. Our Replication server can reduce the overload of centralized system by eliminating or complementing those defects of overload distribution, referred to in the forehead.

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