* Leaked File descriptors ([#275](https://github.com/docker/containerd/issues/275))

        * Additional memory overhead per container ([#21737](https://github.com/kubernetes/kubernetes/pull/21737))

* na ([#79892](https://github.com/kubernetes/kubernetes/pull/79892), [@mikebrow](https://github.com/mikebrow))
* Use O_CLOEXEC to ensure file descriptors do not leak to subprocesses. ([#74691](https://github.com/kubernetes/kubernetes/pull/74691), [@cpuguy83](https://github.com/cpuguy83))

      which can be identified by the [node problem detector](http://kubernetes.io/docs/admin/node-problem/)
    * Leaked File descriptors ([#275](https://github.com/docker/containerd/issues/275))
    * Additional memory overhead per container ([#21737](https://github.com/docker/docker/issues/21737))

var s2 = s1                    // s2 stores the slice descriptor of s1
s1 = s1[:1]                    // s1's length is 1 but it still shares its underlying array with s2
s2[0] = 42                     // setting s2[0] changes s1[0] as well
fmt.Println(s1, s2)            // prints [42] [42 2 3]

var m1 = make(map[string]int)
var m2 = m1                    // m2 stores the map descriptor of m1

          ([#27885](https://github.com/kubernetes/kubernetes/issues/27885)).
          The issue can be identified by using the node problem detector.

        - File descriptor leak on init/control.
          ([#275](https://github.com/containerd/containerd/issues/275))

        - Additional memory overhead per container.

- Kubelet's Node Grace Shutdown will terminate probes when shutting down ([#105215](https://github.com/kubernetes/kubernetes/pull/105215), [@rphillips](https://github.com/rphillips))
- Kubelet: fixes a file descriptor leak in log rotation ([#106382](https://github.com/kubernetes/kubernetes/pull/106382), [@rphillips](https://github.com/rphillips)) [SIG Node]

* Move config local to controllers in kube-controller-manager ([#72800](https://github.com/kubernetes/kubernetes/pull/72800), [@stewart-yu](https://github.com/stewart-yu))
* Fix some potential deadlocks and file descriptor leaking for inotify watches. ([#75376](https://github.com/kubernetes/kubernetes/pull/75376), [@cpuguy83](https://github.com/cpuguy83))