return nil, nil
	}

	toRelease := make(map[api.IPFamily]string)
	for _, ip := range service.Spec.ClusterIPs {
		if netutils.IsIPv6String(ip) {
			toRelease[api.IPv6Protocol] = ip
		} else {
			toRelease[api.IPv4Protocol] = ip
		}
	}
	return al.releaseIPs(toRelease)
}

func (al *Allocators) Destroy() {
	al.serviceNodePorts.Destroy()

	cpusInUse := getAssignedCPUsOfSiblings(s, podUID, containerName)
	if toRelease, ok := s.GetCPUSet(podUID, containerName); ok {
		s.Delete(podUID, containerName)
		// Mutate the shared pool, adding released cpus.
		toRelease = toRelease.Difference(cpusInUse)
		s.SetDefaultCPUSet(s.GetDefaultCPUSet().Union(toRelease))
	}
	return nil
}

Navid Shaikh <******@****.***> 1614926718 +0530

                released.add(resourceHandler);
                resourceHandler.released();
            }
            doRelease(count);
        } finally {
            lock.unlock();
        }
    }

    private void doRelease(int count) {
        waitingFor = Math.min(notReceived.size(), waitingFor + count);

	nodeStartupGracePeriod time.Duration

	// Controller will not proactively sync node health, but will monitor node
	// health signal updated from kubelet. There are 2 kinds of node healthiness
	// signals: NodeStatus and NodeLease. If it doesn't receive update for this amount
	// of time, it will start posting "NodeReady==ConditionUnknown". The amount of
	// time before which Controller start evicting pods is controlled via flag
	// 'pod-eviction-timeout'.

		if gpdir == "" {
			continue
		}
		if rel := search.InDir(dir, filepath.Join(gpdir, "src")); rel != "" && rel != "." {
			path := filepath.ToSlash(rel)
			// gorelease will alert users publishing their modules to fix their paths.
			if err := module.CheckImportPath(path); err != nil {
				badPathErr = err
				break
			}
			return path, nil
		}
	}

- Promote NodeLease feature to GA.

- kubelet: Users can now enable the alpha NodeLease feature gate to have the Kubelet create and periodically renew a Lease in the kube-node-lease namespace. The lease duration defaults to 40s, and can be configured via the kubelet.config.k8s.io/v1beta1.KubeletConfiguration's NodeLeaseDurationSeconds...

### Node

- Remove PIDs cgroup controller requirement when related feature gates are disabled
  ([#79073](https://github.com/kubernetes/kubernetes/pull/79073), [@rafatio](https://github.com/rafatio))
- Fix kubelet NodeLease potential performance issues. Kubelet now will try to update lease using cached one instead of get from API Server every time. ([#81174](https://github.com/kubernetes/kubernetes/pull/81174), [@answer1991](https://github.com/answer1991))

- Remove `NodeLease` feature gate that was graduated and locked to stable in 1.17 release. ([#105222](https://github.com/kubernetes/kubernetes/pull/105222), [@cyclinder](https://github.com/cyclinder))