Topic54 problems· 1 reviewed

DNS

54 incident problems about DNS. Start with the reviewed ones.

All problems (54)

LINUX-1555A chrony source is corrected and one node still skewsTime skew returns only after interface flaps on one node.LinuxIntermediate9 minProK8S-1483A CoreDNS autopath optimization speeds most lookups and one namespace loopsA migrated namespace sees intermittent DNS loops after autopath optimization is enabled cluster-wide.KubernetesIntermediate9 minProK8S-1516A CoreDNS change is applied and one namespace still resolves stale IPsOnly one namespace behind one node-local cache keeps seeing stale service IPs after a CoreDNS update.KubernetesIntermediate9 minProK8S-1474A CoreDNS negative cache hides a fixed ServiceA service recovers, yet callers keep failing for several minutes because the negative DNS result is still cached.KubernetesIntermediate9 minProK8S-1496A CoreDNS rollout succeeds and pods still resolve stale service IPsOnly pods behind one node-local DNS cache keep resolving a retired service IP after a CoreDNS rollout.KubernetesIntermediate9 minProK8S-1506A CoreDNS rollout succeeds and pods still resolve stale service IPsOnly pods behind one node-local cache keep resolving a retired service IP after a DNS rollout.KubernetesIntermediate9 minProK8S-1526A CoreDNS update rolls out and one namespace still resolves stale endpointsOnly one namespace sees stale endpoints after a CoreDNS update.KubernetesIntermediate9 minProK8S-1536A CoreDNS update rolls out and one namespace still resolves stale endpointsOnly one namespace sees stale endpoints after a CoreDNS update.KubernetesIntermediate9 minProK8S-1566A NodeLocal DNSCache restart succeeds and one namespace still gets NXDOMAINOne namespace sees NXDOMAIN only after search suffix changes.KubernetesIntermediate9 minProK8S-1556A NodeLocal DNSCache rollout completes and one namespace still resolves stale service IPsOne namespace sees intermittent traffic to an old service IP after DNS cache rollout.KubernetesIntermediate9 minProK8S-1464A CoreDNS loop appears on one Ubuntu node poolCoreDNS loop warnings start only after one worker image line moves to a newer Ubuntu release.KubernetesIntermediate10 minProK8S-1462A cert-manager DNS01 challenge hits the right zone and still failsWildcard issuance fails for one delegated subzone while the provider confirms the TXT record is present.KubernetesIntermediate11 minProK8S-1630NodeLocal DNS is healthy and one node still resolves stale namesOne node still resolves stale names after a CoreDNS upstream change.KubernetesIntermediate10 minProK8S-1628A Cilium policy is correct and one DNS path still failsOne DNS path still fails after a policy suffix cleanup.KubernetesIntermediate8 minPro