CAJ | 학술논문

针对带有时间约束的长时关键应用面临的容灾需求,提出一种基于检查点的应用容灾方法,在应用运行过程中定期保存应用的中间运行状态,并将中间状态异步传输到异地,灾难发生后应用无需重新运行,可自动从最近的检查点位置接力运行.给出自适应的检查点参数设定方法,并构造原型系统验证了该技术的有效性.
침대대유시간약속적장시관건응용면림적용재수구,제출일충기우검사점적응용용재방법,재응용운행과정중정기보존응용적중간운행상태,병장중간상태이보전수도이지,재난발생후응용무수중신운행,가자동종최근적검사점위치접력운행.급출자괄응적검사점삼수설정방법,병구조원형계통험증료해기술적유효성.
A new application disaster tolerance method was proposed to meet the disaster tolerance requirements of time-constrained long-running applications. The method saved the middle running states of applications periodically and transfered these states to backup servers asynchronously. After disaster happened,application could resume from the latest checkpoint. Method of setting the checkpoint parameters was provided too. The prototype has verified the efficiency of the method in simulation environment.