예외 로깅 레벨 4xx/5xx 분리#246
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📊 코드 커버리지 리포트
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Goder-0
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Goder-0
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| @ExceptionHandler(MethodArgumentNotValidException.class) | ||
| public ResponseEntity<BaseResponse<String>> handleMethodArgumentNotValid(MethodArgumentNotValidException ex) { | ||
| log.error(ex.getMessage(), ex); | ||
| log.warn("Validation failed: {}", ex.getMessage()); |
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MethodArgumentNotValidException에서 ex.getMessage()를 그대로 WARN에 남기면 rejected value가 로그에 섞일 수 있습니다. 회원가입/로그인 같은 검증 실패에서 사용자 입력값이 그대로 남을 수 있어서, 고정 문구나 field name / error count 정도만 남기는 쪽이 더 안전해 보입니다.
| return ResponseEntity.notFound().build(); | ||
| } | ||
| log.error("No static resource {}", exception.getResourcePath(), exception); | ||
| log.warn("No static resource: {}", exception.getResourcePath()); |
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PR 설명 수정이 필요해보입니다. 본문에는 “봇 스캔성 404 등 고빈도 노이즈는 DEBUG”라고 적혀 있는데, 현재 구현은 NoResourceFoundException을 WARN으로 남기고 있습니다.
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관련 이슈
PR 설명
배경
log.error(ex.getMessage(), ex)로 동일하게 로깅하여,클라이언트 잘못인 4xx(검증 실패, 405, 404 등)까지 ERROR + 풀스택으로 기록됨.
Request method 'POST' is not supported,채팅을 찾을 수 없습니다등이 ERROR 로 다수 확인됨.적용된 로깅 원칙
변경 사항
WARN, 스택 트레이스 없이 핵심 필드만 기록BusinessException→ErrorCode.getStatus()로 분기: 5xx만 ERROR + 스택, 4xx는 WARNException(예상 못 한 5xx) →ERROR+ 풀스택 유지, 예외 객체를 인자로 전달