}
		d, err := discovery.NewDiscoveryClientForConfig(restConfig)
		if err != nil {
			return nil, err
		}
		return memory.NewMemCacheClient(d), nil
	})
	out.mapper = lazy.NewWithRetry(func() (meta.ResettableRESTMapper, error) {
		discoveryClient, err := out.ToDiscoveryClient()
		if err != nil {
			return nil, err
		}

	if err != nil {
		return fmt.Errorf("failed to read plugin config: %v", err)
	}

	discoveryClient := cacheddiscovery.NewMemCacheClient(kubeClient.Discovery())
	discoveryRESTMapper := restmapper.NewDeferredDiscoveryRESTMapper(discoveryClient)
	genericInitializer := initializer.New(kubeClient, dynamicClient, informers, c.Authorization.Authorizer, features,

	}

	// Use a discovery client capable of being refreshed.
	discoveryClient := rootClientBuilder.DiscoveryClientOrDie("controller-discovery")
	cachedClient := cacheddiscovery.NewMemCacheClient(discoveryClient)
	restMapper := restmapper.NewDeferredDiscoveryRESTMapper(cachedClient)
	go wait.Until(func() {
		restMapper.Reset()
	}, 30*time.Second, ctx.Done())

* discovery.CachedDiscoveryInterface implementation returned by NewMemCacheClient has changed semantics of Invalidate method -- the cache refresh is now deferred to the first cache lookup. ([#70994](https://github.com/kubernetes/kubernetes/pull/70994), [@mborsz](https://github.com/mborsz))