Uploaded image for project: 'OpenShift Bugs'
  1. OpenShift Bugs
  2. OCPBUGS-66104

[Custom DNS] coredns pod continuously report error on AWS/Azure platform.

XMLWordPrintable

    • Icon: Bug Bug
    • Resolution: Unresolved
    • Icon: Critical Critical
    • None
    • 4.21
    • None
    • None
    • False
    • Hide

      None

      Show
      None
    • None
    • Critical
    • None
    • None
    • None
    • Proposed
    • None
    • None
    • None
    • None
    • None
    • None
    • None
    • None

      Description of problem:

      Install a custom DNS cluster, installation process succeeded, but checking the coredns pod, it reported following errors continuously, 
      
      [ERROR] plugin/errors: 2 . NS: read udp 10.0.0.4:58260->168.63.129.16:53: i/o timeout
      [ERROR] plugin/errors: 2 . NS: read udp 10.0.0.4:51842->10.0.0.4:53: i/o timeout
      [ERROR] plugin/errors: 2 cdn01.quay.io. A: read udp 10.0.0.4:52134->168.63.129.16:53: i/o timeout
      [ERROR] plugin/errors: 2 . NS: read udp 10.0.0.4:46658->10.0.0.4:53: i/o timeout
      [ERROR] plugin/errors: 2 cdn01.quay.io. A: read udp 10.0.0.4:54452->168.63.129.16:53: i/o timeout
      [ERROR] plugin/errors: 2 . NS: read udp 10.0.0.4:43536->168.63.129.16:53: i/o timeout
      
      the above error came from https://prow.ci.openshift.org/view/gs/test-platform-results/pr-logs/pull/openshift_release/71412/rehearse-71412-periodic-ci-openshift-release-master-ci-4.21-e2e-azure-custom-dns-techpreview/1993667161335271424
          

      Version-Release number of selected component (if applicable):

      4.21.0-0.ci-2025-11-26-030640 
          

      How reproducible:

      Always
          

      Steps to Reproduce:

          1. install a custom DNS cluster on AWS or Azure.
          2.
          3.
          

      Actual results:

      Install succeeded, but coredns reported above error continuously.
          

      Expected results:

      Install succeeded, no errors in coredns pod log.
          

      Additional info:

      no such errors on GCP platform.
          

              Unassigned Unassigned
              yunjiang-1 Yunfei Jiang
              None
              None
              Gaoyun Pei Gaoyun Pei
              None
              Votes:
              0 Vote for this issue
              Watchers:
              4 Start watching this issue

                Created:
                Updated: