CSR-PDOS: BFT: The Time is Now

本研究的主题很简单：拜占庭容错（BFT）技术和技术趋势正接近一个拐点，在这个拐点上，BFT系统的重大生产部署是可行的。本研究旨在(1)开发新的BFT技术，足以使BFT在一系列生产系统中部署；(2)构建重要的原型BFT系统，其成本和性能与使用复制来容忍更窄范围故障的部署系统相当。如果这项工作取得成功，如果技术趋势继续下去，我们相信，对于服务提供商来说，用越来越便宜的硬件来换取BFT复制所提供的思想将变得具有吸引力。

The thesis of this research is simple: Byzantine fault tolerance (BFT) techniques and technology trends are nearing an inflection point where significant production deployment of BFT systems can be made viable.This research aims to (1) develop new BFT technologies sufficient to make BFT deployable in a range of production systems and (2) construct significant prototype BFT systems whose costs and performance are comparable to deployed systems that use replication to tolerate a much narrower range of faults. If this work is successful and if technology trends continue, we believe it will become attractive for service providers to trade increasingly inexpensive hardware for the piece of mind provided by BFT replication.