Bug 2045866

Summary:	MCO Operator pod spam "Error creating event" warning messages in 4.10
Product:	OpenShift Container Platform	Reporter:	Yu Qi Zhang <jerzhang>
Component:	Machine Config Operator	Assignee:	mkenigsb
Machine Config Operator sub component:	Machine Config Operator	QA Contact:	Rio Liu <rioliu>
Status:	CLOSED ERRATA	Docs Contact:
Severity:	medium
Priority:	medium	CC:	aos-bugs, mkenigsb, mkrejci
Version:	4.10
Target Milestone:	---
Target Release:	4.10.0
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:	2022-03-10 16:42:23 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:
Embargoed:

Description Yu Qi Zhang 2022-01-25 20:04:17 UTC

Description of problem:

The MCO operator log, sometime around Dec. 21st and in 4.10 only, starting from PR https://github.com/openshift/machine-config-operator/pull/2833, spams a warning message e.g.

W0124 22:13:09.332948       1 recorder.go:205] Error creating event &Event{ObjectMeta:{.16cd5489abe402fe      0 0001-01-01 00:00:00 +0000 UTC <nil> <nil> map[] map[] [] []  []},InvolvedObject:ObjectReference{Kind:,Namespace:,Name:,UID:,APIVersion:,ResourceVersion:,FieldPath:,},Reason:ClusterRoleBindingUpdated,Message:Updated ClusterRoleBinding.rbac.authorization.k8s.io/machine-config-server -n openshift-machine-config-operator because it changed,Source:EventSource{Component:machine-config-operator,Host:,},FirstTimestamp:2022-01-24 22:13:09.331198718 +0000 UTC m=+890.272064564,LastTimestamp:2022-01-24 22:13:09.331198718 +0000 UTC m=+890.272064564,Count:1,Type:Normal,EventTime:0001-01-01 00:00:00 +0000 UTC,Series:nil,Action:,Related:nil,ReportingController:,ReportingInstance:,}: Event ".16cd5489abe402fe" is invalid: involvedObject.namespace: Invalid value: "": does not match event.namespace

This is not a blocking issue but is good to fix cosmetically, as well as to not fill up log storage.

See example log: https://gcsweb-ci.apps.ci.l2s4.p1.openshiftapps.com/gcs/origin-ci-test/pr-logs/pull/openshift_machine-config-operator/2927/pull-ci-openshift-machine-config-operator-master-e2e-aws/1485726952353435648/artifacts/e2e-aws/gather-extra/artifacts/pods/openshift-machine-config-operator_machine-config-operator-8454b9478b-b6qk7_machine-config-operator.log

vs a 4.9 log: https://gcsweb-ci.apps.ci.l2s4.p1.openshiftapps.com/gcs/origin-ci-test/pr-logs/pull/openshift_machine-config-operator/2928/pull-ci-openshift-machine-config-operator-release-4.9-e2e-aws/1485671156978552832/artifacts/e2e-aws/gather-extra/artifacts/pods/openshift-machine-config-operator_machine-config-operator-7986544b5-5fg96_machine-config-operator.log


Version-Release number of MCO (Machine Config Operator) (if applicable): 4.10

Platform (AWS, VSphere, Metal, etc.): all

Are you certain that the root cause of the issue being reported is the MCO (Machine Config Operator)?
(Y/N/Not sure): Y

How reproducible: 100%

Steps to Reproduce:
1. Any CI job
2.
3.

Actual results:

Expected results:

Additional info:

1. Please consider attaching a must-gather archive (via oc adm must-gather). Please review must-gather contents for sensitive information before attaching any must-gathers to a Bugzilla report. You may also mark the bug private if you wish.

2. If a must-gather is unavailable, please provide the output of:

$ oc get co machine-config -o yaml

$ oc get mcp (and oc describe mcp/${degraded_pool} if pools are degraded)

$ oc get mc

$ oc get pod -n openshift-machine-config-operator

$ oc get node -o wide

3. If a node is not accessible via API, please provide console/journal/kubelet logs of the problematic node

4. Are there RHEL nodes on the cluster? If yes, please upload the whole Ansible logs or Jenkins job

Comment 6 errata-xmlrpc 2022-03-10 16:42:23 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 (Moderate: OpenShift Container Platform 4.10.3 security 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/RHSA-2022:0056