Change from method to function

pkg/scheduler/factory/BUILD

@@ -64,6 +64,7 @@ go_test(
         "//pkg/scheduler/algorithm/priorities:go_default_library",
         "//pkg/scheduler/api:go_default_library",
         "//pkg/scheduler/api/latest:go_default_library",
+        "//pkg/scheduler/internal/cache:go_default_library",
         "//pkg/scheduler/internal/cache/fake:go_default_library",
         "//pkg/scheduler/internal/queue:go_default_library",
         "//pkg/scheduler/nodeinfo:go_default_library",

pkg/scheduler/factory/factory.go

@@ -150,8 +150,6 @@ type PodPreemptor interface {
 type Configurator interface {
 	// Exposed for testing
 	GetHardPodAffinitySymmetricWeight() int32
-	// Exposed for testing
-	MakeDefaultErrorFunc(backoff *util.PodBackoff, podQueue internalqueue.SchedulingQueue) func(pod *v1.Pod, err error)
 
 	// Predicate related accessors to be exposed for use by k8s.io/autoscaler/cluster-autoscaler
 	GetPredicateMetadataProducer() (predicates.PredicateMetadataProducer, error)
@@ -883,7 +881,7 @@ func (c *configFactory) CreateFromKeys(predicateKeys, priorityKeys sets.String,
 			return cache.WaitForCacheSync(c.StopEverything, c.scheduledPodsHasSynced)
 		},
 		NextPod:         internalqueue.MakeNextPodFunc(c.podQueue),
-		Error:           c.MakeDefaultErrorFunc(podBackoff, c.podQueue),
+		Error:           MakeDefaultErrorFunc(c.client, podBackoff, c.podQueue, c.schedulerCache, c.StopEverything),
 		StopEverything:  c.StopEverything,
 		VolumeBinder:    c.volumeBinder,
 		SchedulingQueue: c.podQueue,
@@ -1061,7 +1059,8 @@ func NewPodInformer(client clientset.Interface, resyncPeriod time.Duration) core
 	}
 }
 
-func (c *configFactory) MakeDefaultErrorFunc(backoff *util.PodBackoff, podQueue internalqueue.SchedulingQueue) func(pod *v1.Pod, err error) {
+// MakeDefaultErrorFunc construct a function to handle pod scheduler error
+func MakeDefaultErrorFunc(client clientset.Interface, backoff *util.PodBackoff, podQueue internalqueue.SchedulingQueue, schedulerCache schedulerinternalcache.Cache, stopEverything <-chan struct{}) func(pod *v1.Pod, err error) {
 	return func(pod *v1.Pod, err error) {
 		if err == core.ErrNoNodesAvailable {
 			klog.V(4).Infof("Unable to schedule %v/%v: no nodes are registered to the cluster; waiting", pod.Namespace, pod.Name)
@@ -1073,10 +1072,10 @@ func (c *configFactory) MakeDefaultErrorFunc(backoff *util.PodBackoff, podQueue
 					nodeName := errStatus.Status().Details.Name
 					// when node is not found, We do not remove the node right away. Trying again to get
 					// the node and if the node is still not found, then remove it from the scheduler cache.
-					_, err := c.client.CoreV1().Nodes().Get(nodeName, metav1.GetOptions{})
+					_, err := client.CoreV1().Nodes().Get(nodeName, metav1.GetOptions{})
 					if err != nil && errors.IsNotFound(err) {
 						node := v1.Node{ObjectMeta: metav1.ObjectMeta{Name: nodeName}}
-						c.schedulerCache.RemoveNode(&node)
+						schedulerCache.RemoveNode(&node)
 					}
 				}
 			} else {
@@ -1099,7 +1098,7 @@ func (c *configFactory) MakeDefaultErrorFunc(backoff *util.PodBackoff, podQueue
 			// to run on a node, scheduler takes the pod into account when running
 			// predicates for the node.
 			if !util.PodPriorityEnabled() {
-				if !backoff.TryBackoffAndWait(podID, c.StopEverything) {
+				if !backoff.TryBackoffAndWait(podID, stopEverything) {
 					klog.Warningf("Request for pod %v already in flight, abandoning", podID)
 					return
 				}
@@ -1107,7 +1106,7 @@ func (c *configFactory) MakeDefaultErrorFunc(backoff *util.PodBackoff, podQueue
 			// Get the pod again; it may have changed/been scheduled already.
 			getBackoff := initialGetBackoff
 			for {
-				pod, err := c.client.CoreV1().Pods(podID.Namespace).Get(podID.Name, metav1.GetOptions{})
+				pod, err := client.CoreV1().Pods(podID.Namespace).Get(podID.Name, metav1.GetOptions{})
 				if err == nil {
 					if len(pod.Spec.NodeName) == 0 {
 						podQueue.AddUnschedulableIfNotPresent(pod)

pkg/scheduler/factory/factory_test.go

@@ -39,6 +39,7 @@ import (
 	"k8s.io/kubernetes/pkg/scheduler/algorithm/predicates"
 	schedulerapi "k8s.io/kubernetes/pkg/scheduler/api"
 	latestschedulerapi "k8s.io/kubernetes/pkg/scheduler/api/latest"
+	schedulerinternalcache "k8s.io/kubernetes/pkg/scheduler/internal/cache"
 	fakecache "k8s.io/kubernetes/pkg/scheduler/internal/cache/fake"
 	internalqueue "k8s.io/kubernetes/pkg/scheduler/internal/queue"
 	schedulernodeinfo "k8s.io/kubernetes/pkg/scheduler/nodeinfo"
@@ -254,10 +255,10 @@ func TestDefaultErrorFunc(t *testing.T) {
 	client := fake.NewSimpleClientset(&v1.PodList{Items: []v1.Pod{*testPod}})
 	stopCh := make(chan struct{})
 	defer close(stopCh)
-	factory := newConfigFactory(client, v1.DefaultHardPodAffinitySymmetricWeight, stopCh)
 	queue := &internalqueue.FIFO{FIFO: cache.NewFIFO(cache.MetaNamespaceKeyFunc)}
+	schedulerCache := schedulerinternalcache.New(30*time.Second, stopCh)
 	podBackoff := util.CreatePodBackoff(1*time.Millisecond, 1*time.Second)
-	errFunc := factory.MakeDefaultErrorFunc(podBackoff, queue)
+	errFunc := MakeDefaultErrorFunc(client, podBackoff, queue, schedulerCache, stopCh)
 
 	errFunc(testPod, nil)