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Bug 1937090

Summary: cluster DNS experiencing disruptions during cluster upgrade in insights cluster
Product: OpenShift Container Platform Reporter: Miciah Dashiel Butler Masters <mmasters>
Component: NetworkingAssignee: Miciah Dashiel Butler Masters <mmasters>
Networking sub component: DNS QA Contact: jechen <jechen>
Status: CLOSED ERRATA Docs Contact:
Severity: high    
Priority: high CC: aarapov, amcdermo, aos-bugs, cmoore, hongli, jbeakley, jeder, jerzhang, kbsingh, kelly.brown1, lars.erhardt.extern, mapandey, mmasters, nraghava, pbergene, rogbas, sdodson, walters, wking
Version: 4.5Keywords: ServiceDeliveryImpact
Target Milestone: ---   
Target Release: 4.6.z   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: 1937089 Environment:
Last Closed: 2021-04-27 14:20:49 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 1937089    
Bug Blocks:    

Comment 3 jechen 2021-04-16 14:08:45 UTC 
please ignore my last comment, I read the result reversely by mistake.  Below is correct result:


Verified in 4.6.0-0.nightly-2021-04-16-034018

$  oc -n openshift-dns get pod
NAME                READY   STATUS    RESTARTS   AGE
dns-default-654g9   3/3     Running   0          41m
dns-default-7pp2l   3/3     Running   0          35m
dns-default-dcq44   3/3     Running   0          41m
dns-default-jcrhl   3/3     Running   0          35m
dns-default-q29g9   3/3     Running   0          35m
dns-default-q6lkj   3/3     Running   0          41m

$ oc -n openshift-dns get pod/dns-default-654g9 -oyaml
<---snip--->
    readinessProbe:
      failureThreshold: 3
      httpGet:
        path: /ready    <--- verified the fix by https://github.com/openshift/cluster-dns-operator/pull/248/files
        port: 8181      <--- verified the fix by https://github.com/openshift/cluster-dns-operator/pull/248/files
        scheme: HTTP    
      initialDelaySeconds: 10
      periodSeconds: 3
      successThreshold: 1
      timeoutSeconds: 3
<---snip--->
Comment 6 errata-xmlrpc 2021-04-27 14:20:49 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (OpenShift Container Platform 4.6.26 bug fix update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2021:1232