seniorSpring
How does Spring Boot handle backpressure collapse in non-reactive (MVC) systems?
Updated May 17, 2026
Short answer
MVC systems do not natively support backpressure, leading to thread exhaustion under load.
Deep explanation
Unlike WebFlux, Spring MVC uses thread-per-request. When request rate exceeds processing capacity, threads get exhausted, queues fill, and system collapses. This is not true backpressure but overload failure.
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