[{"id":"IL-0570","title":{"en":"Dropping an unused MySQL table stalled queries on its busy parent table and crowdworks.jp was hard to reach for a minute","ko":"안 쓰는 테이블을 지우는 마이그레이션 직후 MySQL 쿼리가 막혀 crowdworks.jp에 1분쯤 접속하기 어려웠다"},"org":"CrowdWorks","org_slug":"crowdworks","date":"2026-09-07","severity":"unknown","root_cause":"deploy-rollout","url":"https://benchlet.com/incidentlib/app/cases/IL-0570","shared_components":["schema-migration","database"]},{"id":"IL-0315","title":{"en":"Railway's backend API went down when an index build locked a billion-row Postgres table and used up every connection","ko":"약 10억 행 테이블에 인덱스를 만드는 스키마 변경이 테이블 전체를 잠가 Railway 의 백엔드 API 가 멈췄다"},"org":"Railway","org_slug":"railway","date":"2025-10-28","severity":"unknown","root_cause":"deploy-rollout","url":"https://benchlet.com/incidentlib/app/cases/IL-0315","shared_components":["database","database-proxy"]},{"id":"IL-0307","title":{"en":"Supabase's Postgres connection pooler Supavisor 2.0 dropped connections for about 80% of us-east-1 tenants","ko":"Supabase us-east-1 에서 Supavisor 2.0 업그레이드 뒤 Postgres 연결 풀러가 테넌트 약 80% 의 연결을 끊었다"},"org":"Supabase","org_slug":"supabase","date":"2025-01-29","severity":"unknown","root_cause":"deploy-rollout","url":"https://benchlet.com/incidentlib/app/cases/IL-0307","shared_components":["database","database-proxy"]},{"id":"IL-0554","title":{"en":"A database migration used up Sentry US's Postgres connections, and the site and event ingestion were down for 22 minutes","ko":"데이터베이스 마이그레이션의 긴 쿼리가 Postgres 커넥션을 고갈시켜 Sentry US 의 사이트와 수집이 22분 동안 멈췄다"},"org":"Sentry","org_slug":"sentry","date":"2024-10-10","severity":"unknown","root_cause":"deploy-rollout","url":"https://benchlet.com/incidentlib/app/cases/IL-0554","shared_components":["schema-migration","database"]},{"id":"IL-0523","title":{"en":"TANF-app production deployments were blocked for two months when a search-index migration ran out of database disk space","ko":"TANF-app 의 운영 배포가 PostgreSQL 마이그레이션 실패로 두 달 동안 막힘"},"org":"U.S. Department of Health and Human Services","org_slug":"u-s-department-of-health-and-human-services","date":"2023-09-07","severity":"unknown","root_cause":"deploy-rollout","url":"https://benchlet.com/incidentlib/app/cases/IL-0523","shared_components":["schema-migration","database"]},{"id":"IL-0524","title":{"en":"An index migration locked Open Collective's whole Transactions table and degraded the service for nearly an hour","ko":"인덱스를 다시 만드는 마이그레이션이 운영에서 Transactions 테이블을 잠가 Open Collective 서비스가 느려짐"},"org":"Open Collective","org_slug":"open-collective","date":"2023-04-04","severity":"unknown","root_cause":"deploy-rollout","url":"https://benchlet.com/incidentlib/app/cases/IL-0524","shared_components":["schema-migration","database"]},{"id":"IL-0391","title":{"en":"GoCardless API requests timed out for about 15 seconds while a Postgres migration waited for an AccessExclusive lock","ko":"외래 키 제약을 다시 만드는 Postgres 마이그레이션이 잠금 대기열에 걸려 GoCardless API 가 15초쯤 멈췄다"},"org":"GoCardless","org_slug":"gocardless","date":"2015-05-27","severity":"unknown","root_cause":"deploy-rollout","url":"https://benchlet.com/incidentlib/app/cases/IL-0391","shared_components":["schema-migration","database"]},{"id":"IL-0356","title":{"en":"Every domain hosted on Railway returned HTTP 404 to new connections for five minutes because route lookups failed","ko":"Railway 에 호스팅된 모든 도메인으로 오는 새 연결이 5분 동안 HTTP 404 를 받았다"},"org":"Railway","org_slug":"railway","date":"2026-09-30","severity":"unknown","root_cause":"deploy-rollout","url":"https://benchlet.com/incidentlib/app/cases/IL-0356","shared_components":["database"]},{"id":"IL-0136","title":{"en":"A deployment that cleared an internal service's caches at peak traffic sent 20 times the normal load to the Azure OpenAI metadata backend in Sweden Central, and health checks that depended on its database restarted instances in a loop for almost six hours","ko":"Sweden Central 리전에서 내부 서비스 배포가 캐시를 비워 메타데이터 백엔드에 평소 20배의 트래픽이 몰렸고, 데이터베이스 연결에 기대는 헬스 체크가 인스턴스를 계속 재시작시켜 Azure OpenAI 요청이 6시간 가까이 실패했다"},"org":"Microsoft Azure","org_slug":"microsoft-azure","date":"2026-09-29","severity":"unknown","root_cause":"deploy-rollout","url":"https://benchlet.com/incidentlib/app/cases/IL-0136","shared_components":["database"]},{"id":"IL-0510","title":{"en":"MIT Learn's RDS PostgreSQL ran out of storage after a release and learn.mit.edu returned 503s and 504s for hours","ko":"MIT Learn 운영 RDS PostgreSQL 의 저장 공간이 임시 파일로 가득 차 learn.mit.edu 가 세 시간 동안 503 과 504 를 냈다"},"org":"MIT Open Learning","org_slug":"mit-open-learning","date":"2026-03-24","severity":"unknown","root_cause":"deploy-rollout","url":"https://benchlet.com/incidentlib/app/cases/IL-0510","shared_components":["database"]},{"id":"IL-0380","title":{"en":"A compaction change in InfluxDB Cloud us-east-1 dropped data from compacted files, and queries missed data for weeks","ko":"AWS us-east-1 의 InfluxDB Cloud 클러스터에서 압축 중에 일부 데이터가 빠져 쿼리에 나오지 않았다"},"org":"InfluxData","org_slug":"influxdata","date":"2026-02-09","severity":"unknown","root_cause":"deploy-rollout","url":"https://benchlet.com/incidentlib/app/cases/IL-0380","shared_components":["database"]},{"id":"IL-0547","title":{"en":"Buildkite annotation queries timed out and drove database CPU up across shards after a migration removed an index","ko":"Buildkite 의 Agent API, REST API, GraphQL 이 annotations 테이블 쿼리 타임아웃으로 4시간 가까이 저하됐다"},"org":"Buildkite","org_slug":"buildkite","date":"2025-11-10","severity":"unknown","root_cause":"deploy-rollout","url":"https://benchlet.com/incidentlib/app/cases/IL-0547","shared_components":["database"]},{"id":"IL-0327","title":{"en":"After a blue/green upgrade of CircleCI's workflows database every query hit disk, and workflow starts lagged or failed","ko":"워크플로 데이터베이스를 blue/green 으로 업그레이드한 뒤 워크플로 시작과 취소가 지연되고 실패했다"},"org":"CircleCI","org_slug":"circleci","date":"2025-04-03","severity":"unknown","root_cause":"deploy-rollout","url":"https://benchlet.com/incidentlib/app/cases/IL-0327","shared_components":["database"]},{"id":"IL-0324","title":{"en":"Three MediaWiki deployments lost Memcached after a PHP 8.1 rollout and overloaded the External Storage database cluster","ko":"External Storage 데이터베이스 클러스터에 과부하가 걸려 mw-api-int, mw-parsoid, mw-jobrunner 의 지연과 데이터베이스 오류가 늘었다"},"org":"Wikimedia Foundation","org_slug":"wikimedia-foundation","date":"2025-03-12","severity":"unknown","root_cause":"deploy-rollout","url":"https://benchlet.com/incidentlib/app/cases/IL-0324","shared_components":["database"]},{"id":"IL-0552","title":{"en":"CircleCI's archival database ran out of storage, slowing workflow and job starts and the display of workflows in the UI","ko":"보관 데이터베이스의 저장 공간이 차서 CircleCI 워크플로 시작이 늦어지고 UI에서 워크플로가 잘 보이지 않았다"},"org":"CircleCI","org_slug":"circleci","date":"2025-01-21","severity":"unknown","root_cause":"deploy-rollout","url":"https://benchlet.com/incidentlib/app/cases/IL-0552","shared_components":["database"]},{"id":"IL-0571","title":{"en":"STORES reservation returned bursts of 504 errors when a smart-list query held a database process for over 20 minutes","ko":"STORES 予約의 스마트리스트 검색 쿼리가 특정 테넌트에서 20분 넘게 DB 프로세스를 붙잡아 504 에러가 급증했다"},"org":"STORES","org_slug":"stores","date":"2024-07-01","severity":"unknown","root_cause":"deploy-rollout","url":"https://benchlet.com/incidentlib/app/cases/IL-0571","shared_components":["database"]},{"id":"IL-0293","title":{"en":"Cloud Bigtable in us-central1 had higher latency and connection errors for about 32 hours from low-rate packet loss","ko":"us-central1 의 Cloud Bigtable 에서 지연과 연결 오류가 32시간 동안 이어졌다"},"org":"Google Cloud","org_slug":"google-cloud","date":"2023-12-04","severity":"unknown","root_cause":"deploy-rollout","url":"https://benchlet.com/incidentlib/app/cases/IL-0293","shared_components":["database"]},{"id":"IL-0567","title":{"en":"Aurora MySQL behind Cookie Run: OvenBreak hit 100% CPU after a sales-ranking feature launch, and players could not play","ko":"쿠키런: 오븐브레이크의 패키지 매출 랭킹 기능을 배포한 뒤 Aurora MySQL CPU가 100%에 이르러 유저가 게임에 접속하지 못했다"},"org":"Devsisters","org_slug":"devsisters","date":"2023-09-05","severity":"unknown","root_cause":"deploy-rollout","url":"https://benchlet.com/incidentlib/app/cases/IL-0567","shared_components":["database"]},{"id":"IL-0483","title":{"en":"Replicate's website and API returned slow responses and HTTP 500s for two hours as PostgreSQL connections ran out","ko":"PostgreSQL 커넥션이 바닥나 Replicate 웹사이트와 API가 두 시간 가까이 느린 응답과 HTTP 500을 냈다"},"org":"Replicate","org_slug":"replicate","date":"2023-05-11","severity":"unknown","root_cause":"deploy-rollout","url":"https://benchlet.com/incidentlib/app/cases/IL-0483","shared_components":["database"]},{"id":"IL-0371","title":{"en":"Half of new connections to Render Postgres databases with point-in-time recovery failed while their backup jobs ran","ko":"PITR 을 켠 Render Postgres 데이터베이스에서 백업이 도는 동안 새 연결의 절반이 실패했다"},"org":"Render","org_slug":"render","date":"2023-04-21","severity":"unknown","root_cause":"deploy-rollout","url":"https://benchlet.com/incidentlib/app/cases/IL-0371","shared_components":["database"]},{"id":"IL-0328","title":{"en":"A field type change in the database of CircleCI's job distribution service left all jobs stuck in \"not running\"","ko":"배포 뒤 CircleCI 의 모든 executor 에서 작업이 \"not running\" 상태로 멈췄다"},"org":"CircleCI","org_slug":"circleci","date":"2021-11-08","severity":"unknown","root_cause":"deploy-rollout","url":"https://benchlet.com/incidentlib/app/cases/IL-0328","shared_components":["database"]},{"id":"IL-0566","title":{"en":"Hot ranges after a Cookie Run: Kingdom guild update drove CockroachDB nodes to 100% CPU, forcing emergency maintenance","ko":"쿠키런: 킹덤 길드 업데이트 직후 CockroachDB 노드 몇 대에 부하가 몰려 CPU가 100%에 이르고 게임에 에러가 났다"},"org":"Devsisters","org_slug":"devsisters","date":"2021-03-06","severity":"unknown","root_cause":"deploy-rollout","url":"https://benchlet.com/incidentlib/app/cases/IL-0566","shared_components":["database"]}]