Merge pull request #42111 from feiskyer/sandbox

Automatic merge from submit-queue (batch tested with PRs 41116, 41804, 42104, 42111, 42120)

Remove SandboxReceived event

This PR removes SandboxReceived event in sync pod.

> This event seems somewhat meaningless, and clouds the event records for a pod. Do we actually need it? Pulling and pod received on the node are very relevant, this seems much less so. Would suggest we either remove it, or turn it into a message that clearly indicates why it has value.

Refer d65309399a (commitcomment-21052453).

cc @smarterclayton @yujuhong

pkg/kubelet/kuberuntime/kuberuntime_manager.go

@@ -555,9 +555,8 @@ func (m *kubeGenericRuntimeManager) SyncPod(pod *v1.Pod, _ v1.PodStatus, podStat
 		if podContainerChanges.SandboxID != "" {
 			m.recorder.Eventf(ref, v1.EventTypeNormal, "SandboxChanged", "Pod sandbox changed, it will be killed and re-created.")
 		} else {
-			m.recorder.Eventf(ref, v1.EventTypeNormal, "SandboxReceived", "Pod sandbox received, it will be created.")
+			glog.V(4).Infof("SyncPod received new pod %q, will create a new sandbox for it", format.Pod(pod))
 		}
-
 	}
 
 	// Step 2: Kill the pod if the sandbox has changed.