School of Computer Science and Technology, Harbin Institute of Technology, Harbin 150001, China.
Sensors (Basel). 2012;12(5):5815-23. doi: 10.3390/s120505815. Epub 2012 May 4.
Failure detectors are one of the fundamental components for building a distributed system with high availability. In order to maintain the efficiency and scalability of failure detection in a complicated large-scale distributed system, accrual failure detectors that can adapt to multiple applications have been studied extensively. In this paper, an new accrual failure detector--LA-FD with low system overhead has been proposed specifically for current mobile network equipment on the Internet whose processing power, memory space and power supply are all constrained. It does not rely on the probability distribution of message transmission time, or on the maintenance of a history message window. By simple calculation, LA-FD provides adaptive failure detection service with high accuracy to multiple upper applications. The related experiments and results have also been presented.
失效探测器是构建高可用性分布式系统的基本组件之一。为了在复杂的大规模分布式系统中保持失效检测的效率和可扩展性，已经广泛研究了能够适应多种应用的累积失效探测器。在本文中，针对当前互联网上的移动网络设备，提出了一种新的具有低系统开销的累积失效探测器 LA-FD，这些设备的处理能力、内存空间和电源都受到限制。它不依赖于消息传输时间的概率分布，也不依赖于历史消息窗口的维护。通过简单的计算，LA-FD 为多个上层应用程序提供了高精度的自适应失效检测服务。还介绍了相关的实验和结果。
