Incident Library

Organisation

unknown

unknown · unknown

1 case · 2025

Root cause Capacity exhaustion
Component CoreDNSClient-side DNS resolver and cacheVPC DNS resolver
Contributing factor Unreviewed defaultsUnknown limit
Symptom DNS resolution failuresIntermittent timeouts

Cases

  1. IL-0048 DNS lookups timed out in a large EKS cluster when CoreDNS hit the 1024 packets-per-second link-local limit, driven by sudo hostname lookupsunknown · 2025

    Root cause Capacity exhaustion