Tolerate the case if related event is nil

Huang-Wei · Huang-Wei · commit 187fc29e3efa · 2019-07-16T05:42:10.000-07:00
diff --git a/staging/src/k8s.io/client-go/tools/events/event_recorder.go b/staging/src/k8s.io/client-go/tools/events/event_recorder.go
@@ -51,7 +51,7 @@ func (recorder *recorderImpl) Eventf(regarding runtime.Object, related runtime.O
 	}
 	refRelated, err := reference.GetReference(recorder.scheme, related)
 	if err != nil {
-		klog.Errorf("Could not construct reference to: '%#v' due to: '%v'.", related, err)
+		klog.V(9).Infof("Could not construct reference to: '%#v' due to: '%v'.", related, err)
 	}
 	if !util.ValidateEventType(eventtype) {
 		klog.Errorf("Unsupported event type: '%v'", eventtype)

Original file line number	Diff line number	Diff line change
`@@ -51,7 +51,7 @@ func (recorder *recorderImpl) Eventf(regarding runtime.Object, related runtime.O`
`51`	`51`	`}`
`52`	`52`	`refRelated, err := reference.GetReference(recorder.scheme, related)`
`53`	`53`	`if err != nil {`
`54`		`- klog.Errorf("Could not construct reference to: '%#v' due to: '%v'.", related, err)`
	`54`	`+ klog.V(9).Infof("Could not construct reference to: '%#v' due to: '%v'.", related, err)`
`55`	`55`	`}`
`56`	`56`	`if !util.ValidateEventType(eventtype) {`
`57`	`57`	`klog.Errorf("Unsupported event type: '%v'", eventtype)`