分布式系统中失效检测器综述

Summarization on failure detector in distributed system

失效检测器是构建高可用分布式系统的基础组件之一,能够保证分布式系统提供持续、可靠的服务,以最低的检测负载实现快速、准确的失效检测为目标。目前的失效检测器主要围绕自适应失效检测和检测结果共享机制展开研究,以期能够在检测时间、检测准确性以及检测负载等失效检测服务质量方面不断改进。

Failure detector is one of fundamental components to build high availability distributed systems,and can ensure that the distributed systems provide the continuous and reliable service. The target of failure detector is to achieve the fast and accurate failure detection with the lowest overhead. At present,in order to improve the detection time,accuracy and overhead,the failure detector mainly focuses on adaptive failure detection and mechanism of sharing result.