Bug 2015098

Summary:	image registry does not remain available during upgrade
Product:	OpenShift Container Platform	Reporter:	OpenShift BugZilla Robot <openshift-bugzilla-robot>
Component:	Image Registry	Assignee:	Oleg Bulatov <obulatov>
Status:	CLOSED ERRATA	QA Contact:	wewang <wewang>
Severity:	high	Docs Contact:
Priority:	high
Version:	4.9	CC:	aos-bugs, wking, xiuwang
Target Milestone:	---
Target Release:	4.8.z
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-11-02 14:42:06 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:	2005049
Bug Blocks:

Comment 5 W. Trevor King 2021-10-26 01:37:33 UTC

In [1], both 'Application behind service load balancer with PDB is not disrupted' and 'Image registry remain available' had outages of ~100ms.  Perhaps that remaining disruption is an ingress/service thing, and no longer a registry thing?

[1]: https://prow.ci.openshift.org/view/gs/origin-ci-test/logs/periodic-ci-openshift-release-master-ci-4.8-e2e-azure-upgrade/1452554396645724160

Comment 6 Oleg Bulatov 2021-10-27 14:05:16 UTC

This fix should be in the version that you are upgrading from. To avoid disruptions the pods that are being deleted (old pods) should stay alive for some time until all components become aware that the pod will disappear.

4.8.0-0.ci-2021-10-21-200323 doesn't have the fix. Newer runs seems to be green.

Comment 7 wewang 2021-10-28 00:46:16 UTC

Yes, it passed in new job:https://prow.ci.openshift.org/view/gs/origin-ci-test/logs/periodic-ci-openshift-release-master-ci-4.8-e2e-azure-upgrade/1453279562237480960 and testgrid can see it: https://testgrid.k8s.io/redhat-openshift-ocp-release-4.8-informing#periodic-ci-openshift-release-master-ci-4.8-e2e-azure-upgrade&include-filter-by-regex=remain%20available

Comment 10 errata-xmlrpc 2021-11-02 14:42:06 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 4.8.18 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-2021:4020