[{"id":"IL-0049","title":{"en":"Partial DNS outage after CoreDNS scaled down and kube-proxy failed to delete stale conntrack entries","ko":"CoreDNS 파드가 줄어든 뒤 kube-proxy 가 conntrack 항목을 지우지 못해 일부 서비스의 DNS 요청이 없어진 파드로 가면서 5xx 가 쏟아졌다"},"org":"Preply","org_slug":"preply","date":"2020-02-28","severity":"unknown","root_cause":"dns-network","url":"https://benchlet.com/incidentlib/app/cases/IL-0049","shared_components":["coredns"]},{"id":"IL-0047","title":{"en":"Pod-to-pod requests delayed by 5, 10 or 15 seconds because of DNS lookups lost to a conntrack race","ko":"conntrack 경합으로 DNS 조회가 5초씩 늦어져 파드 사이 요청이 간헐적으로 5초, 10초, 15초씩 지연되었다."},"org":"MindTickle","org_slug":"mindtickle","date":"2019-08-05","severity":"unknown","root_cause":"dns-network","url":"https://benchlet.com/incidentlib/app/cases/IL-0047","shared_components":["dns-resolver"]}]