Selected Java Interview Questions

Oct 6, 2025 · Backend Development

Boost Spring Boot Performance: Switch from Tomcat to Undertow and Optimize Settings

This guide explains why Tomcat may become a bottleneck under high concurrency, shows how to replace it with the lightweight Undertow server in Spring Boot 3, and provides detailed configuration snippets for thread pools, timeouts, request size limits, compression, HTTP/2, access logging, and monitoring recommendations.