Кафедра мережних технологій

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On supervising and coordinating microservices within web applications on the basis of state machines
(2024) Oletsky, Oleksiy; Moholivskyi, Vitali
An approach to supervising and coordinating microservices by applying state machines has been developed. Both orchestration and choreography approaches to coordinate microservices are considered. A prototype of a library based on this approach is reported. Such advantages as central control over complex distributed execution flow, declarative description of the system and the workflows within it, rich facilities for visualization, possibilities for applying mathematical methods of analysis, keeping track of long-running background jobs, monitoring the current state of a system, testing coordination logic with mocked implementation details, and debugging coordination issues using only state machine without running microservices are illustrated on examples. A way to estimate the importance measures of specific microservices based on PageRank-like techniques is suggested. Some suggestions for using other mathematical methods are discussed.