DPaxos: Managing Data Closer to Users for Low-Latency and Mobile Applications
DPaxos: Managing Data Closer to Users for Low-Latency and Mobile Applications
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DOI：
10.1145/3183713.3196928
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发表时间：
2018-05
期刊：
影响因子：
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通讯作者：
Faisal Nawab;D. Agrawal;A. E. Abbadi
中科院分区：
文献类型：
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作者：
Faisal Nawab;D. Agrawal;A. E. Abbadi
在本文中，我们提出了 Dynamic Paxos (DPaxos)，这是一种基于 Paxos 的共识协议，用于管理对全球分布式数据中心和边缘节点上的分区数据的访问。 DPaxos 旨在在边缘数据管理系统中实现状态机复制组件。 DPaxos 瞄准了利用边缘计算资源的独特机会，以支持具有严格移动性和实时要求的新兴应用程序，例如增强现实和虚拟现实以及车辆应用程序。 DPaxos 的主要目标是减少服务用户请求、从故障中恢复以及对移动性做出反应的延迟。 DPaxos 通过对传统 Paxos 协议进行一些拟议的更改来实现这些目标。最值得注意的是，DPaxos 提出了 Paxos 领导者选举所需的法定人数（即节点组）的动态分配。 DPaxos 中的领导者选举法定人数比传统 Paxos 小，并且仅在存在冲突时才会扩大。
In this paper, we propose Dynamic Paxos (DPaxos), a Paxos-based consensus protocol to manage access to partitioned data across globally-distributed datacenters and edge nodes. DPaxos is intended to implement a State Machine Replication component in data management systems for the edge. DPaxos targets the unique opportunities of utilizing edge computing resources to support emerging applications with stringent mobility and real-time requirements such as Augmented and Virtual Reality and vehicular applications. The main objective of DPaxos is to reduce the latency of serving user requests, recovering from failures, and reacting to mobility. DPaxos achieves these objectives by a few proposed changes to the traditional Paxos protocol. Most notably, DPaxos proposes a dynamic allocation of quorums ( i.e. , groups of nodes) that are needed for Paxos Leader Election. Leader Election quorums in DPaxos are smaller than traditional Paxos and expand only in the presence of conflicts.