基于日志复制和分布式协调服务的高可用系统
首发时间:2017-12-07
摘要:随着互联网的不断发展,计算机需要处理的数据和请求也在飞速的增长。传统的基于昂贵的大型服务器的解决方案已经无法满足业务需求,逐渐被基于廉价服务器的分布式方案所取代。在廉价服务器构建的系统中,服务器的故障变得常见,因此保障系统的高可用变得异常重要。本文设计了一种基于日志复制的高可用系统,同时可以保证数据的一致性。该系统的实现需要使用分布式的协调服务,用来完成选主和状态发现,从而极大地简化了其设计与实现。
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High Availability System Based on Log Replication and Distributed Coordination Service
Abstract:With the development of the internet, the data and requets that computers need to process are also growing rapidly. Traditional solutions based on expensive machine can\'t satisfy the business need, and they are gradually replaced by distributed system solutions based on cheap machine. In distributed system built by cheap machine, machine failures become common, so it\'s important to ensure that the system is high available. The paper designs a high availability system based on log replication, and this system also ensure consisitency. This system use distributed coodination services to accomplish the election of leader and node\'s state discovery, so its design and implemention can be simplified.
Keywords: distributed system high availability system distributed coordination service log replication
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