Network Centrality as a New Perspective on Microservice Architecture

Fuente: arXiv
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Main Authors: Bakhtin, Alexander, Esposito, Matteo, Lenarduzzi, Valentina, Taibi, Davide
Format: Preprint
Published: 2025
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author Bakhtin, Alexander
Esposito, Matteo
Lenarduzzi, Valentina
Taibi, Davide
author_facet Bakhtin, Alexander
Esposito, Matteo
Lenarduzzi, Valentina
Taibi, Davide
contents Context: Over the past decade, the adoption of Microservice Architecture (MSA) has led to the identification of various patterns and anti-patterns, such as Nano/Mega/Hub services. Detecting these anti-patterns often involves modeling the system as a Service Dependency Graph (SDG) and applying graph-theoretic approaches. Aim: While previous research has explored software metrics (SMs) such as size, complexity, and quality for assessing MSAs, the potential of graph-specific metrics like network centrality remains largely unexplored. This study investigates whether centrality metrics (CMs) can provide new insights into MSA quality and facilitate the detection of architectural anti-patterns, complementing or extending traditional SMs. Method: We analyzed 24 open-source MSA projects, reconstructing their architectures to study 53 microservices. We measured SMs and CMs for each microservice and tested their correlation to determine the relationship between these metric types. Results and Conclusion: Among 902 computed metric correlations, we found weak to moderate correlation in 282 cases. These findings suggest that centrality metrics offer a novel perspective for understanding MSA properties. Specifically, ratio-based centrality metrics show promise for detecting specific anti-patterns, while subgraph centrality needs further investigation for its applicability in architectural assessments.
format Preprint
id arxiv_https___arxiv_org_abs_2501_13520
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Network Centrality as a New Perspective on Microservice Architecture
Bakhtin, Alexander
Esposito, Matteo
Lenarduzzi, Valentina
Taibi, Davide
Software Engineering
Distributed, Parallel, and Cluster Computing
Discrete Mathematics
Context: Over the past decade, the adoption of Microservice Architecture (MSA) has led to the identification of various patterns and anti-patterns, such as Nano/Mega/Hub services. Detecting these anti-patterns often involves modeling the system as a Service Dependency Graph (SDG) and applying graph-theoretic approaches. Aim: While previous research has explored software metrics (SMs) such as size, complexity, and quality for assessing MSAs, the potential of graph-specific metrics like network centrality remains largely unexplored. This study investigates whether centrality metrics (CMs) can provide new insights into MSA quality and facilitate the detection of architectural anti-patterns, complementing or extending traditional SMs. Method: We analyzed 24 open-source MSA projects, reconstructing their architectures to study 53 microservices. We measured SMs and CMs for each microservice and tested their correlation to determine the relationship between these metric types. Results and Conclusion: Among 902 computed metric correlations, we found weak to moderate correlation in 282 cases. These findings suggest that centrality metrics offer a novel perspective for understanding MSA properties. Specifically, ratio-based centrality metrics show promise for detecting specific anti-patterns, while subgraph centrality needs further investigation for its applicability in architectural assessments.
title Network Centrality as a New Perspective on Microservice Architecture
topic Software Engineering
Distributed, Parallel, and Cluster Computing
Discrete Mathematics
url https://arxiv.org/abs/2501.13520