[{"id":"IL-0048","title":{"en":"DNS lookups timed out in a large EKS cluster when CoreDNS hit the 1024 packets-per-second link-local limit, driven by sudo hostname lookups","ko":"대형 EKS 클러스터에서 CoreDNS 가 VPC DNS 리졸버로 보내는 질의가 링크 로컬 트래픽의 초당 1024 패킷 한도에 걸려 DNS 조회가 간헐적으로 타임아웃됐다."},"org":"unknown","org_slug":"unknown","date":"2025-08-12","severity":"unknown","root_cause":"capacity","url":"https://benchlet.com/incidentlib/app/cases/IL-0048","shared_components":["dns-resolver"]},{"id":"IL-0080","title":{"en":"kube-dns on Mercari's GKE clusters could not keep up with peak-hour DNS query rates, and a Sev1 production outage followed when several services failed DNS resolution","ko":"트래픽이 몰린 GKE 클러스터에서 kube-dns 가 DNS 질의를 감당하지 못해 여러 서비스의 이름 해석이 실패하고 운영 장애로 번졌다."},"org":"Mercari","org_slug":"mercari","date":"2025-06-04","severity":"sev1","root_cause":"capacity","url":"https://benchlet.com/incidentlib/app/cases/IL-0080","shared_components":["kube-dns"]},{"id":"IL-0027","title":{"en":"All CoreDNS pods landed on one node, the node ran out of memory, and DNS for the whole service went down","ko":"CoreDNS 파드가 모두 한 노드에 몰린 채 그 노드의 메모리가 고갈되자 DNS 가 응답하지 못해 아이디어스 서비스 전체가 멈췄다"},"org":"Backpackr","org_slug":"backpackr","date":"2025-05-07","severity":"unknown","root_cause":"capacity","url":"https://benchlet.com/incidentlib/app/cases/IL-0027","shared_components":["dns-resolver"]},{"id":"IL-0013","title":{"en":"The conntrack table filled up on downsized GKE nodes and a high-traffic aggregation proxy saw climbing connection resets","ko":"노드 RAM 을 절반으로 줄이자 conntrack 테이블이 가득 차 집계 서비스에 연결 리셋과 오류가 늘었다"},"org":"loveholidays","org_slug":"loveholidays","date":"2020-02-15","severity":"unknown","root_cause":"capacity","url":"https://benchlet.com/incidentlib/app/cases/IL-0013","shared_components":["kube-proxy"]},{"id":"IL-0001","title":{"en":"Cluster-wide DNS outage after CoreDNS pods were OOM-killed again and again under a burst of DNS queries","ko":"CoreDNS 파드가 메모리 한도 100Mi 에 걸려 OOM 으로 계속 죽으면서 쿠버네티스 클러스터 전체의 DNS 가 멈췄다"},"org":"Zalando","org_slug":"zalando","date":"2019-01-07","severity":"unknown","root_cause":"capacity","url":"https://benchlet.com/incidentlib/app/cases/IL-0001","shared_components":["dns-resolver"]}]