Asynchronous and dynamic natures of mobile agents, a bound range of mobile agent-based mostly monitoring mechanisms have actively been developed to monitor massive-scale and dynamic distributed networked systems adaptively and efficiently. Among them, some mechanisms attempt to adapt to dynamic changes in various aspects like network traffic patterns, resource addition and deletion, network topology and so on. However, failures of some domain managers are terribly important to providing correct, real-time and economical monitoring functionality during a large-scale mobile agent-primarily based distributed monitoring system. In this paper, we have a tendency to present a unique fault tolerance mechanism to possess the following advantageous options applicable for large-scale and dynamic hierarchical mobile agent-primarily based monitoring organizations. It supports quick failure detection functionality with low failure-free overhead by each domain manager transmitting heart-beat messages to its immediate higher-level manager. Also, it minimizes the number of non-faulty monitoring managers affected by failures of domain managers. Moreover, it allows consistent failure detection actions to be performed continuously in case of agent creation, migration and termination, and is able to execute consistent takeover actions even in concurrent failures of domain managers.
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