How to Gracefully Shut Down a Spring Boot Application: Kill Signals, Hooks, and Thread Pools

This article explains the differences between kill -9 and kill -15 signals for Spring Boot, demonstrates how to use shutdown hooks, the Actuator endpoint, and proper thread‑pool termination to achieve an orderly application shutdown without data loss or resource leaks.

Kill Signalshutdown hookspring-boot

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How to Gracefully Shut Down a Spring Boot Application: Kill Signals, Hooks, and Thread Pools

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Jul 26, 2019 · Backend Development

How to Gracefully Handle Kill Signals in Java Backend Processes

On Linux, this guide shows how to locate and terminate a Java background process using ps and kill, then explains why force‑killing can leave resources open, and provides a complete Java SignalHandler implementation to receive termination signals, safely close files, database connections, and Kafka consumers.

JavaKafkaKill Signal

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How to Gracefully Handle Kill Signals in Java Backend Processes