// Foo resource to be synced.
		if err := r.syncNode(ctx, key); err != nil {
			// Put the item back on the queue to handle any transient errors.
			r.queue.AddRateLimited(key)
			return fmt.Errorf("error syncing '%s': %s, requeuing", key, err.Error())
		}
		// Finally, if no error occurs we Forget this item so it does not
		// get queue again until another change happens.
		r.queue.Forget(obj)

	// listing all policies at all, we would want to wipe the list.
	s.policies.Store(&policies)

	if err != nil {
		// An error was generated while syncing policies. Mark it as dirty again
		// so we can retry later
		utilruntime.HandleError(fmt.Errorf("encountered error syncing policies: %w. Rescheduling policy sync", err))
		s.notify()
	}
}

func (s *policySource[P, B, E]) notify() {
	s.policiesDirty.Store(true)
}

}

func (r *RepairIPAddress) handleSvcErr(err error, key string) {
	if err == nil {
		r.svcQueue.Forget(key)
		return
	}

	if r.svcQueue.NumRequeues(key) < maxRetries {
		klog.V(2).InfoS("Error syncing Service, retrying", "service", key, "err", err)
		r.svcQueue.AddRateLimited(key)
		return
	}

	klog.Warningf("Dropping Service %q out of the queue: %v", key, err)
	r.svcQueue.Forget(key)

func (nm *NamespaceController) syncNamespaceFromKey(ctx context.Context, key string) (err error) {
	startTime := time.Now()
	logger := klog.FromContext(ctx)
	defer func() {
		logger.V(4).Info("Finished syncing namespace", "namespace", key, "duration", time.Since(startTime))
	}()

	namespace, err := nm.lister.Get(key)
	if errors.IsNotFound(err) {
		logger.Info("Namespace has been deleted", "namespace", key)
		return nil

		proxier.logger.Error(err, "Error syncing healthcheck services")
	}
	if err := proxier.serviceHealthServer.SyncEndpoints(proxier.endpointsMap.LocalReadyEndpoints()); err != nil {
		proxier.logger.Error(err, "Error syncing healthcheck endpoints")
	}

	if quit {
		return false
	}
	defer rv.queue.Done(key)

	err := rv.sync(ctx, key)
	if err == nil {
		rv.queue.Forget(key)
		return true
	}

	klog.FromContext(ctx).V(2).Info("Error syncing SVM resource, retrying", "svm", key, "err", err)
	rv.queue.AddRateLimited(key)

	return true
}

func (rv *ResourceVersionController) sync(ctx context.Context, key string) error {

		{sizeMin: 450, sizeMax: 1000, ttlSeconds: 30},
		{sizeMin: 900, sizeMax: 2000, ttlSeconds: 60},
		{sizeMin: 1800, sizeMax: math.MaxInt32, ttlSeconds: 300},
	}
)

// Run begins watching and syncing.
func (ttlc *Controller) Run(ctx context.Context, workers int) {
	defer utilruntime.HandleCrash()
	defer ttlc.queue.ShutDown()
	logger := klog.FromContext(ctx)
	logger.Info("Starting TTL controller")

			defer c.hasProcessed.Finished(key)

			if err := c.reconcile(key); err != nil {
				// Put the item back on the workqueue to handle any transient errors.
				c.queue.AddRateLimited(key)
				return fmt.Errorf("error syncing '%s': %s, requeuing", key, err.Error())
			}
			// Finally, if no error occurs we Forget this item so it is allowed
			// to be re-enqueued without a long rate limit
			c.queue.Forget(obj)

	ServiceExportController = "istio-serviceexport-controller-election"
	// This holds the legacy name to not conflict with older control plane deployments which are just
	// doing the ingress syncing.
	IngressController = "istio-leader"
	// GatewayStatusController controls the status of gateway.networking.k8s.io objects. For the v1alpha1

	err := esController.syncService(logger, fmt.Sprintf("%s/%s", namespace, missingServiceName))

	// nil should be returned when the service doesn't exist
	assert.Nil(t, err, "Expected no error syncing service")

	// That should mean no client actions were performed
	assert.Len(t, client.Actions(), 0)

	// TriggerTimeTracker should have removed the reference to the missing service