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사후 분석: Logto 인증 서비스 중단
2025년 6월 12일, `logto.app`에서 제공되는 Logto 서비스가 요청 라우팅에 영향을 미치는 Cloudflare 장애로 인해 잠시 중단되었습니다. 이 문제는 신속하게 해결되었으며, 데이터 보안이나 핵심 서비스에는 영향을 미치지 않았습니다.
Gao
Founder
Founder
2025년 6월 12일, `logto.app`에서 제공되는 Logto 서비스가 요청 라우팅에 영향을 미치는 Cloudflare 장애로 인해 잠시 중단되었습니다. 이 문제는 신속하게 해결되었으며, 데이터 보안이나 핵심 서비스에는 영향을 미치지 않았습니다.
2025년 6월 12일 18:07부터 18:58 UTC 사이, logto.app 도메인(커스텀 도메인 포함)을 통해 Logto 서비스에 접속한 사용자들은 오류를 경험했습니다. 이 중단은 Cloudflare Workers KV의 장애로 인해 발생하였으며, 우리 라우팅 계층에 영향을 주었습니다. 직접 DNS 해상도를 사용하며 Cloudflare Workers에 의존하지 않는 Logto Cloud 서비스와 Logto Console은 영향을 받지 않았습니다. 서비스는 한 시간 이내에 복구되었으며, 데이터 보안에는 영향이 없었습니다.
logto.app를 통한 요청에 대해 Logto 인증 서비스 API가 500 오류를 반환하기 시작함.이 사고는 Cloudflare Workers KV 다운타임으로 인해 발생했습니다. 우리 Cloudflare Worker는 각 테넌트 또는 도메인 별로 올바른 Logto 지역에 요청을 라우팅하여 데이터 저장 위치와 준수를 보장합니다. 성능 개선을 위해 Worker는 KV를 사용해 이 지역 매핑 정보를 캐시합니다. KV가 이용 불가 상태가 되자 캐시 동작이 실패했고, Worker는 무캐시(no-cache) 동작으로 폴백하지 않고 에러를 발생시켰기 때문에 서비스 중단이 일어났습니다.
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직접 DNS 해상도에 의존하고 라우팅에 Cloudflare Workers를 사용하지 않는 Logto Cloud 서비스와 Logto Console은 이 영향에서 벗어났습니다.
logto.app을 통한 Logto 접근 사용자는 약 50분간 오류를 경험함.여러분의 인내와 지원에 감사드립니다.