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A New Hierarchical Fault Management System (HFMS) of Mobile-Multi Agents

机译:一种新的移动多代理分层故障管理系统(HFMS)

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Mobile Agent technology has become a new paradigm for distributed real-time systems because of their inherent advantages. In any distributed system, along with other issues, survivability and fault tolerance are vital issues for deploying Mobile Agent for real applications. All Mobile Agent based applications face reliability problems due to the failure of agent platform, host and communication link etc. Mobile Agent technology has drawn attention of various researchers working in the area of distributed computing. Researchers have realized the benefits of using Mobile Agents over other existing technology and explore various area of application for Mobile Agents such as Electronic Commerce, Network Management, and Distributed Applications etc. However to fully deploy Mobile Agents in practice a number of challenging issues especially security, fault tolerance and privacy need to be addressed. The scope of this paper is limited to address fault tolerance problem of Mobile Agents in a multi agent environment. This paper identifies various faults in life cycle of Mobile Agent and proposes a comprehensive solution to tolerate all these faults. Paper also identifies the situations when Mobile Agent gets blocked and suggests several ways to avoid these blocks and continues its execution. Proposed solutions combine various existing fault tolerant mechanism to tolerate different kinds of faults. Proposed approach is hierarchical in nature, which combines both centralized and distributed approaches to take advantages of both. Thread base mechanism has been used to detect the failure of Mobile Agent and its executing environment. Heart-beat message passing and Ping command based techniques have been suggested to detect failure of Agent servers. Mobile agent system places have been introduced in this paper for Mobile agent execution. Modified itinerary options have also been explored for tolerating faults and to avoid blocking. Rear guard and acknowledgement based mechanism has been used to tolerate link failure and to ensure fault free migration of Mobile Agents across the networks.
机译:由于其固有的优势,移动代理技术已成为分布式实时系统的新范例。在任何分布式系统中,对于其他问题,生存性和容错性对于将Mobile Agent部署到实际应用程序中都是至关重要的问题。由于代理平台,主机和通信链接等的故障,所有基于Mobile Agent的应用程序都面临可靠性问题。MobileAgent技术引起了分布式计算领域的众多研究人员的关注。研究人员已经意识到使用移动代理相对于其他现有技术的好处,并探索了移动代理在电子商务,网络管理和分布式应用等各种应用领域。但是,在实践中全面部署移动代理要解决许多挑战性问题,尤其是安全性,容错和隐私需要解决。本文的范围仅限于解决多代理环境中移动代理的容错问题。本文确定了Mobile Agent生命周期中的各种故障,并提出了可容忍所有这些故障的综合解决方案。本文还确定了Mobile Agent被阻止的情况,并提出了避免这些阻止并继续执行的几种方法。提出的解决方案结合了各种现有的容错机制来容忍不同类型的故障。提议的方法本质上是分层的,它结合了集中式方法和分布式方法以充分利用两者。线程基础机制已用于检测Mobile Agent及其执行环境的故障。建议使用心跳消息传递和基于Ping命令的技术来检测代理服务器的故障。本文已介绍了用于执行移动代理的移动代理系统位置。还研究了修改后的行程选择,以容忍错误并避免阻塞。基于后卫和确认的机制已被用来容忍链路故障并确保移动代理在网络上的无故障迁移。

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