Weak Transaction Support on the Edge

This report addresses the problem of o↵ering di↵erent consistency guarantees to clients of services provided by the edge nodes. We survey the most important weak consistency models and the main techniques that have been proposed to support weak forms of transactions in a distributed environment. We evaluate these techniques from di↵erent perspectives, namely performance, visibility latency, and fault tolerance. Using these criteria, we discuss the potential limitations and advantages of each of these techniques in the edge computing setting. Based on this analysis, we propose a new architecture to support weak transactions in