Bug 1705646

Summary: MUST VERIFY All components must use configmap leader lock file, not endpoints
Product: OpenShift Container Platform Reporter: Clayton Coleman <ccoleman>
Component: MasterAssignee: Michal Fojtik <mfojtik>
Status: CLOSED ERRATA QA Contact: Xingxing Xia <xxia>
Severity: urgent Docs Contact:
Priority: high    
Version: 4.1.0CC: aos-bugs, jokerman, mmccomas
Target Milestone: ---   
Target Release: 4.1.0   
Hardware: Unspecified   
OS: Unspecified   
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Last Closed: 2019-06-04 10:48:19 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description Clayton Coleman 2019-05-02 16:27:35 UTC
This bug was initially created as a copy of Bug #1705645

I am copying this bug because: this team must ensure they are not impacted:

Scheduler was using leader-elect-resource-lock endpoints, must be configmap.

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.

Comment 3 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.