Hi, I’m a considerate developer.

I believe being considerate means writing clean, readable code,
building predictable and testable systems,
and delivering reliable, trustworthy services that users can depend on.

I’m constantly learning and growing to become better at this,
and this blog is where I share my journey as a learning developer.

Latest Post

Tomcat Async Request 이후 keep-alive timeout이 60초로 닫히던 이유

Tracing why an HTTP keep-alive connection closed after exactly 60 seconds even though keepAliveTimeout was set to 100 seconds, and how it led to Tomcat Bug 69748.

Spring Boot Embedded Tomcat 에서 async request 이후 keepAliveTimeout 이 적용되지 않아 간헐적 502 가 발생하던 현상을 Tomcat Bug 69748 과 함께 정리한다.

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Recently Updated

MySQL TIMESTAMP vs DATETIME, Y2K38 문제: 언제 컬럼을 바꿔야 할까

Updated: 2026-03-21

MySQL TIMESTAMP vs DATETIME, Y2K38, and when to migrate time columns

MySQL TIMESTAMP의 2038년 한계(Y2K38), DATETIME과의 차이, Spring Boot/JPA 테스트 방법, 운영 DB 마이그레이션 전략까지 실무 기준으로 정리한다.

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