Fault tolerance

Fuzzy logic based N Version Programming for improving Software Fault Tolerance Introduction: The N-version software concept attempts to parallel the traditional hardware fault tolerance concept of N-way redundant hardware. In an N-version software system, each module is made with up to N different implementations. Each variant accomplishes the same task, but hopefully in a different way. Each version then submits its answer to voter or decider which determines the correct answer, (hopefully

Fault Tolerance – Application Software Introduction Today's business requirements drive the necessity for software applications that enable organizations to maintain constant and continuous availability. We are living in a 24/7 world. Brick and mortar businesses that only needed to worry about the security of their hard assets after closing for the day now have websites allowing customers to shop online at their convenience. Simply establishing a web presence is not enough to compete in the

Introduction Faults occur in every system which may halt the systems functionality. A fault that presents different symptoms to different observers is called a Byzantine fault. These Byzantine faults form the reason for the loss of a system service and are called Byzantine failures. A Byzantine failure may occur due to arbitrary problems like corruption in their local state, production of incorrect outputs or by processing requests incorrectly instead of the general situations like crashing or stopping

Energy Aware Fault Tolerance in Wireless Sensor Networks Nisha Narayanan CECS Department California State University, Long Beach Long Beach, CA, United States nishas6@gmail.com Disha Gupta CECS Department California State University, Long Beach Long Beach, CA, United States gdisha777@gmail.com Abstract Technological developments have to such an outbreak in Wireless Sensor Networks (WSNs), they are used in a wide variety of today’s industrial and consumer applications and holds limitless

is detected then those values will be sieved out. If divergence occurs among more number of processes then the operation itself will be examined further. Cross-Fault Tolerance (XFT) is new trending protocol that makes BFT more feasible and efficient, also attack model is simplified. [17] Most of the BFT protocols believes in adversary which is used to handle compromised nodes, also message delivery of entire network. To handle such a powerful adversity results complexity and therefore becomes less

FAULT-TOLERANT COMPUTING “Fault tolerant computing is the art and study of building figuring frameworks that keep on operating agreeably within the sight of issues”. A fault tolerant framework might have the capacity to endure at least one faults including – i) transient, irregular or perpetual equipment faults, ii) programming and equipment plan blunders, iii) administrator mistakes, or iv) remotely prompted upsets or physical harm. A broad technique has been produced in this field in the course

Computation and Fault Tolerance Web Application Design on Amazon EC2 Keshav Khandelwal and Pravesh Shah Department of Computer Science, California State University Long Beach, USA Group number 11 Abstract— As Cloud Computing is considered as the most influential technology in IT world which provides many facilities and increases the capability of our system without any extra hardware installment. So this paper focuses on the fault tolerance of web application

tensile. The reactivation probability of a preexisting fracture is given by CFS calculation which involves cohesion, shear and normal stress, coefficient of internal friction and pore pressure. If CFS is greater than 0, the fault is in a stable state; if CFS is less than 0, the fault is unstable and if CFS is equal to 0, failure occurs. According to Langenbruch and Shapiro(2015), a test was conducted where only the friction coefficient and cohesion were kept constant while the other parameters were altered

The North Anatolian Fault (NAF) (Fig. 1) in northern Turkey is a significant, seismically active structure (e.g. Barka 1992; Sengor et al. 2005). The NAF is a 1200 km-long dextral strike-slip fault which extends from the town of Karliova in eastern Turkey, paralleling the southern coast of the Black sea, across the Northern Aegean Sea, central and mainland Greece, eventually linking with the Hellenic subduction zone (e.g. Barka 1992; Barka et al. 2000; Sengor et al. 2005). The NAF is part of a larger

and generally does accurately describe a Master Planned Community. 8. Damages a. If a house is on a fault –line, it would be difficult to find a buyer for such a house. b. Are there similar damages to homes further from the fault-line? If so, perhaps damage is normal and not related to the fault. 9. Relevant Miscellaneous Subject Responses a. Developer did not allow enough green space for the faults. b. Visual inspection by