- Improved scheduling performance when many nodes, and prefilter returns 1-2 nodes (e.g. daemonset)
  

type scriptedReader []func(p []byte) (n int, err error)

func (sr *scriptedReader) Read(p []byte) (n int, err error) {
	if len(*sr) == 0 {
		panic("too many Read calls on scripted Reader. No steps remain.")
	}
	step := (*sr)[0]
	*sr = (*sr)[1:]
	return step(p)
}

func newScriptedReader(steps ...func(p []byte) (n int, err error)) io.Reader {

* Update kubectl help for 1.2 resources ([#23305](https://github.com/kubernetes/kubernetes/pull/23305), [@janetkuo](https://github.com/janetkuo))
* Support addon Deployments, make heapster a deployment with a nanny. ([#22893](https://github.com/kubernetes/kubernetes/pull/22893), [@Q-Lee](https://github.com/Q-Lee))

        for (int i = 0; i < DRAIN_THRESHOLD * 2; i++) {
          map.get(keyOne);
          assertThat(segment.recencyQueue.size()).isAtMost(DRAIN_THRESHOLD);
        }

        // get over many different keys

        for (int i = 0; i < DRAIN_THRESHOLD * 2; i++) {
          map.put(new Object(), new Object());
        }
        assertThat(segment.recencyQueue.isEmpty()).isTrue();

        for (int i = 0; i < DRAIN_THRESHOLD * 2; i++) {
          map.get(keyOne);
          assertThat(segment.recencyQueue.size()).isAtMost(DRAIN_THRESHOLD);
        }

        // get over many different keys

        for (int i = 0; i < DRAIN_THRESHOLD * 2; i++) {
          map.put(new Object(), new Object());
        }
        assertThat(segment.recencyQueue.isEmpty()).isTrue();

    )
    val url = server.url("/a")
    assertThat(get(url).body.string()).isEqualTo("a")
    val i = cache.urls()
    assertThat(i.next()).isEqualTo(url.toString())
    i.remove()

    // Too many calls to remove().
    assertFailsWith<IllegalStateException> {
      i.remove()
    }
  }

  @Test
  fun elementEvictedBetweenHasNextAndNext() {
    // Put a response in the cache.

* Default behavior in Cinder storageclass is changed. If availability is not specified, the zone is chosen by algorithm. It makes possible to spread stateful pods across many zones. ([#44798](https://github.com/kubernetes/kubernetes/pull/44798), [@zetaab](https://github.com/zetaab))

		}

		for _, maxKeys := range []int{1, 10, 49} {
			// Test ListObjects V2
			totalObjs, didRuns := 0, 0
			marker := ""
			for {
				didRuns++
				if didRuns > 1000 {
					t.Fatal("too many runs")
					return
				}
				result, err := obj.ListObjectsV2(context.Background(), upload.bucket, "", marker, "", maxKeys, false, "")
				if err != nil {

     * purposes, the "count" field, tracking the number of elements, serves as that volatile
     * variable ensuring visibility. This is convenient because this field needs to be read in many
     * read operations anyway:
     *
     * - All (unsynchronized) read operations must first read the "count" field, and should not
     * look at table entries if it is 0.
     *

            "issue at https://github.com/tensorflow/tensorflow/issues.");
        return;
      }
      // We have a convoluted scheme here: Using the C++ graph construction API
      // to add potentially many nodes to the graph without running the checks
      // (such as uniqueness of the names of nodes) we run with other functions
      // that add a node to the graph (like TF_FinishOperation).