EgressNetworkPolicy using DNSname causes intermittent outages on AWS

Solution In Progress - Updated -

Issue

  • The application is getting intermittent premature connection closure. and cannot connect for up to 30 minutes.
  • It only affects namespaces with EgressNetworkPolicy using dnsName field.
  • It happens when DNS records are updated.

Environment

  • Red Hat OpenShift Container Platform (RHOCP)
    • 3.11 (AWS)

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