Remove createSnapshotContentRetryCount and createSnapshotContentInterval

from command line options

cmd/snapshot-controller/main.go

@@ -47,8 +47,6 @@ const (
 // Command line flags
 var (
 	kubeconfig   = flag.String("kubeconfig", "", "Absolute path to the kubeconfig file. Required only when running out of cluster.")
-	createSnapshotContentRetryCount = flag.Int("create-snapshotcontent-retrycount", 5, "Number of retries when we create a snapshot content object for a snapshot.")
-	createSnapshotContentInterval   = flag.Duration("create-snapshotcontent-interval", 10*time.Second, "Interval between retries when we create a snapshot content object for a snapshot.")
 	resyncPeriod = flag.Duration("resync-period", 60*time.Second, "Resync interval of the controller.")
 	showVersion  = flag.Bool("version", false, "Show version.")
 
@@ -96,7 +94,7 @@ func main() {
 	// Add Snapshot types to the defualt Kubernetes so events can be logged for them
 	snapshotscheme.AddToScheme(scheme.Scheme)
 
-	klog.V(2).Infof("Start NewCSISnapshotController with kubeconfig [%s] createSnapshotContentRetryCount [%d] createSnapshotContentInterval [%d] resyncPeriod [%+v]", *kubeconfig, *createSnapshotContentRetryCount, *createSnapshotContentInterval, *resyncPeriod)
+	klog.V(2).Infof("Start NewCSISnapshotController with kubeconfig [%s] resyncPeriod [%+v]", *kubeconfig, *resyncPeriod)
 
 	ctrl := controller.NewCSISnapshotCommonController(
 		snapClient,
@@ -105,8 +103,6 @@ func main() {
 		factory.Snapshot().V1beta1().VolumeSnapshotContents(),
 		factory.Snapshot().V1beta1().VolumeSnapshotClasses(),
 		coreFactory.Core().V1().PersistentVolumeClaims(),
-		*createSnapshotContentRetryCount,
-		*createSnapshotContentInterval,
 		*resyncPeriod,
 	)
 

pkg/common-controller/framework_test.go

@@ -761,8 +761,6 @@ func newTestController(kubeClient kubernetes.Interface, clientset clientset.Inte
 		informerFactory.Snapshot().V1beta1().VolumeSnapshotContents(),
 		informerFactory.Snapshot().V1beta1().VolumeSnapshotClasses(),
 		coreFactory.Core().V1().PersistentVolumeClaims(),
-		3,
-		5*time.Millisecond,
 		60*time.Second,
 	)
 

pkg/common-controller/snapshot_controller.go

@@ -337,16 +337,10 @@ func (ctrl *csiSnapshotCommonController) syncUnreadySnapshot(snapshot *crdv1.Vol
 		}
 
 		// update snapshot status
-		for i := 0; i < ctrl.createSnapshotContentRetryCount; i++ {
 		klog.V(5).Infof("syncUnreadySnapshot [%s]: trying to update snapshot status", utils.SnapshotKey(snapshot))
 		_, err = ctrl.updateSnapshotStatus(snapshot, newContent)
-			if err == nil {
-				break
-			}
-			klog.V(4).Infof("failed to update snapshot %s status: %v", utils.SnapshotKey(snapshot), err)
-		}
-
 		if err != nil {
+			klog.V(4).Infof("failed to update snapshot %s status: %v", utils.SnapshotKey(snapshot), err)
 			// update snapshot status failed
 			ctrl.updateSnapshotErrorStatusWithEvent(snapshot, v1.EventTypeWarning, "SnapshotStatusUpdateFailed", fmt.Sprintf("Snapshot status update failed, %v", err))
 			return err
@@ -399,16 +393,10 @@ func (ctrl *csiSnapshotCommonController) syncUnreadySnapshot(snapshot *crdv1.Vol
 				}
 
 				// Update snapshot status with BoundVolumeSnapshotContentName
-				for i := 0; i < ctrl.createSnapshotContentRetryCount; i++ {
 				klog.V(5).Infof("syncUnreadySnapshot [%s]: trying to update snapshot status", utils.SnapshotKey(snapshot))
 				_, err = ctrl.updateSnapshotStatus(snapshot, content)
-					if err == nil {
-						break
-					}
-					klog.V(4).Infof("failed to update snapshot %s status: %v", utils.SnapshotKey(snapshot), err)
-				}
-
 				if err != nil {
+					klog.V(4).Infof("failed to update snapshot %s status: %v", utils.SnapshotKey(snapshot), err)
 					// update snapshot status failed
 					ctrl.updateSnapshotErrorStatusWithEvent(snapshot, v1.EventTypeWarning, "SnapshotStatusUpdateFailed", fmt.Sprintf("Snapshot status update failed, %v", err))
 					return err
@@ -501,8 +489,7 @@ func (ctrl *csiSnapshotCommonController) createSnapshotContent(snapshot *crdv1.V
 
 	var updateContent *crdv1.VolumeSnapshotContent
 	klog.V(3).Infof("volume snapshot content %#v", snapshotContent)
-	// Try to create the VolumeSnapshotContent object several times
+	// Try to create the VolumeSnapshotContent object
-	for i := 0; i < ctrl.createSnapshotContentRetryCount; i++ {
 	klog.V(5).Infof("createSnapshotContent [%s]: trying to save volume snapshot content %s", utils.SnapshotKey(snapshot), snapshotContent.Name)
 	if updateContent, err = ctrl.clientset.SnapshotV1beta1().VolumeSnapshotContents().Create(snapshotContent); err == nil || apierrs.IsAlreadyExists(err) {
 		// Save succeeded.
@@ -513,11 +500,6 @@ func (ctrl *csiSnapshotCommonController) createSnapshotContent(snapshot *crdv1.V
 		} else {
 			klog.V(3).Infof("volume snapshot content %q for snapshot %q saved, %v", snapshotContent.Name, utils.SnapshotKey(snapshot), snapshotContent)
 		}
-			break
-		}
-		// Save failed, try again after a while.
-		klog.V(3).Infof("failed to save volume snapshot content %q for snapshot %q: %v", snapshotContent.Name, utils.SnapshotKey(snapshot), err)
-		time.Sleep(ctrl.createSnapshotContentInterval)
 	}
 
 	if err != nil {
@@ -867,17 +849,14 @@ func (ctrl *csiSnapshotCommonController) bindandUpdateVolumeSnapshot(snapshotCon
 	snapshotCopy := snapshotObj.DeepCopy()
 
 	// update snapshot status
-	for i := 0; i < ctrl.createSnapshotContentRetryCount; i++ {
 	klog.V(5).Infof("bindandUpdateVolumeSnapshot [%s]: trying to update snapshot status", utils.SnapshotKey(snapshotCopy))
 	updateSnapshot, err := ctrl.updateSnapshotStatus(snapshotCopy, snapshotContent)
 	if err == nil {
 		snapshotCopy = updateSnapshot
-			break
-		}
-		klog.V(4).Infof("failed to update snapshot %s status: %v", utils.SnapshotKey(snapshot), err)
 	}
 
 	if err != nil {
+		klog.V(4).Infof("failed to update snapshot %s status: %v", utils.SnapshotKey(snapshot), err)
 		// update snapshot status failed
 		ctrl.updateSnapshotErrorStatusWithEvent(snapshotCopy, v1.EventTypeWarning, "SnapshotStatusUpdateFailed", fmt.Sprintf("Snapshot status update failed, %v", err))
 		return nil, err

pkg/common-controller/snapshot_controller_base.go

@@ -64,8 +64,6 @@ type csiSnapshotCommonController struct {
 	// Map of scheduled/running operations.
 	runningOperations goroutinemap.GoRoutineMap
 
-	createSnapshotContentRetryCount int
-	createSnapshotContentInterval   time.Duration
 	resyncPeriod time.Duration
 }
 
@@ -77,8 +75,6 @@ func NewCSISnapshotCommonController(
 	volumeSnapshotContentInformer storageinformers.VolumeSnapshotContentInformer,
 	volumeSnapshotClassInformer storageinformers.VolumeSnapshotClassInformer,
 	pvcInformer coreinformers.PersistentVolumeClaimInformer,
-	createSnapshotContentRetryCount int,
-	createSnapshotContentInterval time.Duration,
 	resyncPeriod time.Duration,
 ) *csiSnapshotCommonController {
 	broadcaster := record.NewBroadcaster()
@@ -92,8 +88,6 @@ func NewCSISnapshotCommonController(
 		client:            client,
 		eventRecorder:     eventRecorder,
 		runningOperations: goroutinemap.NewGoRoutineMap(true),
-		createSnapshotContentRetryCount: createSnapshotContentRetryCount,
-		createSnapshotContentInterval:   createSnapshotContentInterval,
 		resyncPeriod:      resyncPeriod,
 		snapshotStore:     cache.NewStore(cache.DeletionHandlingMetaNamespaceKeyFunc),
 		contentStore:      cache.NewStore(cache.DeletionHandlingMetaNamespaceKeyFunc),