Bug 1936587

Summary: Cluster DNS service caps TTLs too low and thus evicts from its cache too aggressively
Product: OpenShift Container Platform Reporter: OpenShift BugZilla Robot <openshift-bugzilla-robot>
Component: NetworkingAssignee: Miciah Dashiel Butler Masters <mmasters>
Networking sub component: DNS QA Contact: Hongan Li <hongli>
Status: CLOSED ERRATA Docs Contact:
Severity: high    
Priority: high CC: agabriel, amcdermo, aos-bugs, hongli, oarribas, sgreene
Version: 4.8   
Target Milestone: ---   
Target Release: 4.7.z   
Hardware: Unspecified   
OS: Unspecified   
Fixed In Version: Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2021-03-25 01:53:00 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Bug Depends On: 1933761    
Bug Blocks: 1936589    

Comment 3 Hongan Li 2021-03-17 03:03:14 UTC
Verified with 4.7.0-0.nightly-2021-03-14-223051 and passed.

$ oc -n openshift-dns get cm/dns-default -oyaml
        cache 900

sh-4.4# dig +noall +answer www.google.com
www.google.com.		108	IN	A

Comment 5 errata-xmlrpc 2021-03-25 01:53:00 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 4.7.3 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.