The Research and Implementation of Fault-Tolerance Mechanism of Distributed Object Based on CORBA
基于CORBA的分布对象容错机制研究与实现

Presently, distributed object technology such as CORBA has increasingly become mature. More and moredistributed application systems are implemented using the standard services and protocols provided by CORBA. Thenew-generation distributed systems such as real time systems, online paying systems and stock exchange systems de-mand assurance of dependability. Fault tolerance is a main way of assurance of system reliability. Thereby, it re-quires low-level CORBA infrastructure to provide fault-tolerance mechanism to ensure dependability and availability.This paper firstly discusses implementation strategy and system model of fault-tolerance CORBA object systems. Sec-ondly, it describes main challenges and solutions during the design of fault-tolerance CORBA systems. Thirdly it in-troduces fault-tolerance CORBA prototype system-TBAFTS on top of a CORBA-compliant object middleware, Tong-Broker developed by us independently. Finally we give our conclusion.