Modeling The Edge: Peer-to-Peer Reincarnated
Modeling The Edge: Peer-to-Peer Reincarnated
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发表时间：
2019
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通讯作者：
Gala Yadgar;Oleg Kolosov;M. Aktaş;E. Soljanin
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作者：
Gala Yadgar;Oleg Kolosov;M. Aktaş;E. Soljanin
边缘计算作为一种新的存储和计算模型的兴起已经激发了系统社区内的许多研究，重点关注从终端设备到边缘基础设施的任务卸载的选择和机制，定价，一致性，索引和缓存。然而，目前还不完全清楚边缘基础设施本身将如何部署，更重要的是，如何管理。一种常见的观点认为边缘是传统内容分发网络（CDN）的扩展，因为它的分层布局，集中所有权和云后端。在本文中，我们考虑了一个不同的观点的边缘，作为一个“轮回”的著名的对等（P2P）模型。我们展示了边缘在许多方面与P2P系统相似，包括其节点的数量，异构性和有限的可用性和资源，它们在执行系统的存储和计算中的核心作用，以及与用户终端设备紧密互操作性相关的漏洞。我们描述了边缘与CDN和P2P系统的相似性，这些相似性带来的挑战，以及以前在这两种情况下解决这些问题的方法。我们发现，仍然存在的挑战，在应用这些方法可以通过查看边缘作为一个更大，更聪明的P2P系统的转世。
The rise of edge computing as a new storage and compute model has already motivated numerous studies within the systems community, focusing on the choices and mechanisms of task offloading from end devices to the edge infrastructure, pricing, consistency, indexing and caching. However, it is not yet entirely clear how the edge infrastructure itself will be deployed, and, more importantly, managed. A common point of view considers the edge as an extension of traditional content distribution networks (CDN), due to its hierarchical layout, centralized ownership, and cloud back-end. In this paper, we consider a different view of the edge, as a “reincarnation” of the well-known peer-to-peer (P2P) model. We show how the edge is similar to P2P systems in many aspects, including the number, heterogeneity and limited availability and resources of its nodes, their central role in performing the system’s storage and computation, and the vulnerabilities related to tight interoperability with user end devices. We describe the similarities of the edge to both CDNs and P2P systems, the challenges that arise from these similarities, and the previous approaches to address them in both contexts. We show that the challenges that remain in applying these approaches may be addressed by viewing the edge as a larger and smarter reincarnation of P2P systems.