Conference Proceedings

DATESSO: Self-adapting service composition with debt-aware two levels constraint reasoning

S Kumar, T Chen, R Bahsoon, R Buyya

Proceedings of the IEEE/ACM 15th International Symposium on Software Engineering for Adaptive and Self-Managing Systems | ACM | Published : 2020


The rapidly changing workload of service-based systems can easily cause under-/over-utilization on the component services, which can consequently affect the overall Quality of Service (QoS), such as latency. Self-adaptive services composition rectifies this problem, but poses several challenges: (i) the effectiveness of adaptation can deteriorate due to over-optimistic assumptions on the latency and utilization constraints, at both local and global levels; and (ii) the benefits brought by each composition plan is often short term and is not often designed for long-term benefits - -a natural prerequisite for sustaining the system. To tackle these issues, we propose a two levels constraint rea..

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