移動型オブジェクト上のトランザクション

概要

論文の詳細を見る
Kinds of mobile stations like PHS are available at present. Objects are distributed in not only fixed but also mobile stations. Transactions manipulate multiple objects including mobile objects. While the objects are moving from one location to others, the quality of service (QoS) supported by the objects are changed. The connection is closed by the mobile wireless station in order to reduce the power consumption while the operations issued by the mobile station are being computed, i.e. disconnected operations. One technique to reduce the power consumption is to cache data in the other station to the mobile station. present how to cache the data of the fixed stations to the mobile stations and how to maintain the mutual consistency among the caches and the fixed stations. discusses the locking scheme based on the optimistic two-phase locking on the replicas and a way to reduce the communication. In addition, the performance aspects like bandwidth is changed while the stations are moving. The movement of an object o is modeled as change of the QoS like bandwidth supported by o in this paper. Problem is how to support users with the service required by the users under situations where the objects are moving and replicated in the system. In this paper, we would like to discuss how to manage transactions which manipulate mobile and replicated objects. In section 2, we present the system model. In section 3, we discuss how to compute operations in the mobile objects. In section 4, we discuss how to maintain the mutual consistency among the replicas.
一般社団法人情報処理学会の論文
1995-09-20

移動型オブジェクト上のトランザクション

スポンサーリンク

概要

著者

関連論文

スポンサーリンク