Olga Solovei

Work place: Kyiv National University of Construction and Architecture, Department of Information Technologies and Applied Mathematics, Kyiv, 03037, Ukraine

E-mail: solovey.ol@knuba.edu.ua

Website:

Research Interests: Big Data

Biography

Dr. Olha L. Solovei received her PhD in computer science from Kyiv National University of Construction and Architecture, Kyiv, Ukraine, in 2013. Her research focuses on the development of models and methods for Big Data science theory. 
She is currently an Assistant Professor of the Department of Information Technologies of Design and Applied Mathematics and Doctoral Student of the Department of Information Technologies, Kyiv National University of Construction and Architecture, Kyiv, Ukraine.

Author Articles
Leveraging Sensitivity Analysis for Configurable Kafka Clusters: A Multi-objective Model to Minimize Latency

By Olga Solovei Tetiana Honcharenko

DOI: https://doi.org/10.5815/ijisa.2025.04.03, Pub. Date: 8 Aug. 2025

This article presents a new multi-objective model that optimizes Kafka configuration to minimize end-to-end latency while quantifying independent parameter influence, interaction effects and sensitivity to local parameter changes. The proposed model addresses a challenging problem of selecting the configuration to prevent overloading while maintaining high availability and low latency of Kafka cluster. The study proposes an algorithm to implement this model using an adaptive optimization strategy that combines gradient-based and derivative-free search methods. This strategy enables a balance between convergence speed and global search capabilities, which is critical when dealing with the nonlinear parameter space characteristic of large-scale Kafka deployments. Experimental evaluation demonstrates 99% accuracy of the model verified against a trained XGBRegressor model and tested across multiple optimization strategies. The experimental results show that alternative configurations can be selected to meet secondary objectives-such as operational constraints - without significantly impacting latency. In this context, the designed multi-objective model serves as a valuable tool to guide the configuration selection process by quantifying and incorporating such secondary objectives into the optimization landscape. The proposed multi-objective function could be adopted in real time applications as a tool for Kafka performance tuning.

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