Sangkon Han  Jung-in Choi  Gyun Woo

10.5626/JOK.2020.47.12.1101

CQRS logging Distributed System

The amounts of information collected in areas such as V2X, artificial intelligence, and self-driving are increasing rapidly every year. It is important to collect, process, and store heterogeneous data. This is because the amounts of relevant data have increased rapidly and the types and formats of those data have diversified. Event sourcing, which is a way to store a whole set of events about changing the state of a system or an application through some set of events, enables an event-driven design based on messages, and also enables the restoration and reproduction of the state of a system or an application. Combined with CQRS (Command and Query Responsibility Segmentation), a pattern that separates queries and commands, the characteristics of event sourcing can be utilized for a distributed system architecture for large data processing, as well as systems and applications for data analysis and debugging using reproducibility of the state of event sourcing. This paper introduces the cases and research contents on data reproduction and dispersal processing using event sourcing.