Mobile agent (MA) offers a great deal of flexibility in distributed computing environment spiced by fault tolerance (FT), a capability that ensure MAs execution is uninterrupted and continue in operation despite node, link or agent failures. There are several MAFT strategies that have been proposed and developed with the design goal of ensuring agents reliability during execution. However, each of these strategies has its own strengths and weaknesses, given resource utilization as well as compliance to MAs execution properties of exactly-once and non-blocking. Therefore, this paper discusses an in-depth design analysis on existing MAFT strategies and mechanism that have been proposed and developed to ensure MA is fault tolerant in distributed computing environment. The rationale is to identify a FT technique which is reliable with suitable mechanisms to supports FT a resource constraint domain. To achieve this, we performed literature survey on fourteen (14) peer reviewed articles that discussed MAFT and several important FT parameters were used to evaluate each approach considered. Findings were presented and discussed which shows that the Chameleon FT approach offers a flexible and adaptive FT mechanisms to deal with several types of faults in unreliable networks and supports engineering and re-engineering. With this findings, we believe the approaches fault detection and recovery mechanisms can be adopted to design and develop a resourceful FT strategy in software defined wireless sensors network.

Username
Password