클라우드 컴퓨팅에서 사용자 작업환경의 끊김 없는 연계를 위한 웹서비스 연결 관리 기법

• 영문명: Web Service Connection Management Scheme for Seamless Migration of User Workspace in Cloud Computing
• 발행기관: 한국IT서비스학회
• 저자명: 최민(Min Choi)
• 간행물 정보: 『한국IT서비스학회지』한국IT서비스학회지 제8권 제1호, 193~202쪽, 전체 10쪽
• 주제분류: 경제경영 > 경영학
• 파일형태: PDF
• 발행일자: 2009.03.31

영문 초록

Cloud computing emerges as a new computing paradigm which targets reliable and customizable services. The term builds on decades of research in virtual machine. distributed and parallel computing, utility computing. and more recently networking. web service, and software as a service. In this paper, we provide a seamless connection migration of web services. This is useful for cloud computing environment in which many client terminals have mobility. With the wireless internet facility, those mobile users can move place to place during internet communication. Therefore, we provide solutions to the two major problems in current virtualization based migration : communication failure problems and connection re-establishment. Communication channel flushing by zero window notification helps to resolve the communication failure problems and TCP port inheritance prevents connection re-establishment errors during socket reconstruction. Thus, our web service migration facility is now able to preserve open network connections, and even for server sockets. This is a highly transparent approach, in that we did not introduce additional messages for channel flushing and did not make any modification to the TCP protocol stack. Experimental results show that the overhead due to connection migration of web services is almost negligible when compared with time to take the conventional web service migration.

키워드

Software as a Service(SaaS) Web Service Cloud Computing Service Migration