Lotus：面向边缘发布/订阅的无服务器传输数据处理
Lotus: Serverless In-Transit Data Processing for Edge-based Pub/Sub
摘要：
发布-订阅系统是基于边缘的物联网用例的一种流行方法：可以轻松集成异构、受约束的边缘设备，并将消息路由逻辑卸载到边缘消息代理。然而，消息处理仍然在受约束的边缘设备上完成。复杂的基于内容的过滤、数据表示之间的转换或消息提取给这些系统带来了相当大的负载，并且由此产生的多余消息传输给网络带来了压力。在本文中，我们提出了Lotus，将传输中的数据处理添加到边缘订阅中间件，以便将基本的消息处理从边缘设备卸载到代理。具体来说，我们利用功能即服务范式，它提供了对高效多租户、扩展到零和实时处理的支持。通过Lotus的概念验证原型，我们验证了它的可行性，并演示了它如何用于将传感器数据转换卸载到订阅消息传递中间件。
英文摘要：
Publish-subscribe systems are a popular approach for edge-based IoT use cases: Heterogeneous, constrained edge devices can be integrated easily, with message routing logic offloaded to edge message brokers. Message processing, however, is still done on constrained edge devices. Complex content-based filtering, the transformation between data representations, or message extraction place a considerable load on these systems, and resulting superfluous message transfers strain the network. In this paper, we propose Lotus, adding in-transit data processing to an edge publish-subscribe middleware in order to offload basic message processing from edge devices to brokers. Specifically, we leverage the Function-as-a-Service paradigm, which offers support for efficient multi-tenancy, scale-to-zero, and real-time processing. With a proof-of-concept prototype of Lotus, we validate its feasibility and demonstrate how it can be used to offload sensor data transformation to the publish-subscribe messaging middleware.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
