fix: 보정 스케줄러의 미처리 요청 감지 범위 확장#226
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Ji-minhyeok merged 14 commits intoApr 27, 2026
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…uple-participant-count-update # Conflicts: # src/main/java/com/threestar/trainus/domain/lesson/issue/LessonStockReconciliationScheduler.java
…al-project/WEB5_7_3star_BE into refactor/#221/decouple-participant-count-update
…uple-participant-count-update
…nt-count-update' into refactor/#221/decouple-participant-count-update # Conflicts: # src/main/java/com/threestar/trainus/domain/lesson/issue/LessonApplyConsumer.java
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🚀 작업 개요
보정 스케줄러가 “MQ가 비었다”는 신호만으로 재고 보정을 수행하던 기존 구조에서 Waiting Room(선점 완료, 미처리 요청) 잔여 여부까지 포함하여 전체 파이프라인의 미처리 요청을 더 보수적으로 감지하도록 개선했습니다.
또한 MQ Stream 상태 확인이 실패한 경우에도 보정을 진행하지 않도록 fail-closed로 변경하여 외부 상태 확인 실패 시 재고를 다시 열지 않도록 하였습니다.
🛠️ 작업 내용
Waiting Room 기반 미처리 요청 감지 추가 (Core Redis)
DIRTY_SET_KEY(lesson:apply:active-lessons)에 등록된 레슨들을 기준으로 각lesson:apply:waiting-room:{lessonId}SortedSet의 잔여 수를 확인MQ Stream Lag 체크 fail-closed 적용 (MQ Redis)
hasStreamLag()에서 Stream/group 조회가 실패한 경우 기존에는 “미처리 없음”으로 간주될 수 있었으나 변경 후에는 상태 확인 실패 시 보정을 연기하도록 처리✅ PR 유형
✅ Check List
🔗 관련 이슈
💬 기타 참고 사항