Add more logs to help debugging

pkg/kubelet/kuberuntime/kuberuntime_gc.go

@@ -278,7 +278,7 @@ func (cgc *containerGC) evictSandboxes(minAge time.Duration) error {
 		if createdAt.After(newestGCTime) {
 			continue
 		}
-
+		glog.V(4).Infof("PodSandbox %q is eligible for garbage collection since it was created before %v: %+v", sandboxID, newestGCTime, sandbox)
 		evictSandboxes = append(evictSandboxes, sandboxID)
 	}
 

pkg/kubelet/kuberuntime/kuberuntime_manager.go

@@ -619,6 +619,7 @@ func (m *kubeGenericRuntimeManager) SyncPod(pod *v1.Pod, _ v1.PodStatus, podStat
 			glog.Errorf("createPodSandbox for pod %q failed: %v", format.Pod(pod), err)
 			return
 		}
+		glog.V(4).Infof("Created PodSandbox %q for pod %q", podSandboxID, format.Pod(pod))
 
 		podSandboxStatus, err := m.runtimeService.PodSandboxStatus(podSandboxID)
 		if err != nil {