Bug 1705645

Summary:	kube-scheduler uses endpoints leader lock file, should be configmap
Product:	OpenShift Container Platform	Reporter:	Clayton Coleman <ccoleman>
Component:	Node	Assignee:	ravig <rgudimet>
Status:	CLOSED ERRATA	QA Contact:	Weinan Liu <weinliu>
Severity:	urgent	Docs Contact:
Priority:	urgent
Version:	4.1.0	CC:	aos-bugs, calfonso, eparis, jokerman, mmccomas, schoudha, sjenning
Target Milestone:	---
Target Release:	4.1.0
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:	2019-06-04 10:48:19 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:

Description Clayton Coleman 2019-05-02 16:25:38 UTC

I0502 15:23:30.593107       1 flags.go:33] FLAG: --kubeconfig=""
I0502 15:23:30.593111       1 flags.go:33] FLAG: --leader-elect="true"
I0502 15:23:30.593114       1 flags.go:33] FLAG: --leader-elect-lease-duration="15s"
I0502 15:23:30.593118       1 flags.go:33] FLAG: --leader-elect-renew-deadline="10s"
I0502 15:23:30.593122       1 flags.go:33] FLAG: --leader-elect-resource-lock="endpoints"
I0502 15:23:30.593126       1 flags.go:33] FLAG: --leader-elect-retry-period="2s"
I0502 15:23:30.593130       1 flags.go:33] FLAG: --lock-object-name="kube-scheduler"

Components *must not* use leader-elect-resource-lock=endpoints because it causes high churn on kube-proxies.  This is also not a safe change to roll out, so is a 4.1 blocker.

I will clone to other components to verify.

Comment 1 Seth Jennings 2019-05-02 18:22:54 UTC

We need something this
https://github.com/openshift/cluster-kube-controller-manager-operator/blob/master/bindata/v3.11.0/kube-controller-manager/defaultconfig.yaml#L22-L23

In here
https://github.com/openshift/cluster-kube-scheduler-operator/blob/master/bindata/v3.11.0/kube-scheduler/defaultconfig.yaml

Comment 2 Seth Jennings 2019-05-03 18:30:54 UTC

KSO PR
https://github.com/openshift/cluster-kube-scheduler-operator/pull/127

Comment 3 Seth Jennings 2019-05-06 21:44:51 UTC

New KSO PR
https://github.com/openshift/cluster-kube-scheduler-operator/pull/128

Comment 4 Eric Paris 2019-05-08 02:30:17 UTC

moving back to assigned until we either figure the patch out or work out if we are going to force merge.

Comment 9 errata-xmlrpc 2019-06-04 10:48:19 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, 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-2019:0758