queue.addListener(listener, directExecutor());

    Multiset<Object> counters = ConcurrentHashMultiset.create();
    queue.enqueue(incrementingEvent(counters, listener, 1));
    queue.enqueue(incrementingEvent(counters, listener, 2));
    queue.enqueue(incrementingEvent(counters, listener, 3));
    queue.enqueue(incrementingEvent(counters, listener, 4));
    assertEquals(0, counters.size());
    queue.dispatch();

* Fixed validation of multizone cluster for GCE ([#38695](https://github.com/kubernetes/kubernetes/pull/38695), [@jszczepkowski](https://github.com/jszczepkowski))
* Fix nil pointer dereference in test framework ([#37583](https://github.com/kubernetes/kubernetes/pull/37583), [@mtaufen](https://github.com/mtaufen))

		speak = math.Max(math.Max(v[Small].Peak, speak), v[Small].Curr)
		if lpeak > 0 || speak > 0 {
			count++
		}
	}
	if count > 0 {
		lrg := XferStats{
			Avg:  lavg / float64(count),
			Curr: lcurr / float64(count),
			Peak: lpeak,
		}
		sml := XferStats{
			Avg:  savg / float64(count),
			Curr: scurr / float64(count),
			Peak: speak,
		}
		qs.XferStats[Large] = lrg
		qs.XferStats[Small] = sml

    /** Constructs an instance with all counts initialized to zero. */
    public SimpleStatsCounter() {}

    /** @since 11.0 */
    @Override
    public void recordHits(int count) {
      hitCount.add(count);
    }

    /** @since 11.0 */
    @Override
    public void recordMisses(int count) {
      missCount.add(count);
    }

    @SuppressWarnings("GoodTime") // b/122668874

    /** Constructs an instance with all counts initialized to zero. */
    public SimpleStatsCounter() {}

    /** @since 11.0 */
    @Override
    public void recordHits(int count) {
      hitCount.add(count);
    }

    /** @since 11.0 */
    @Override
    public void recordMisses(int count) {
      missCount.add(count);
    }

    @SuppressWarnings("GoodTime") // b/122668874

10.244.0.142:9402                                HEALTHY                  outbound|9402||cert-manager.cert-manager.svc.cluster.local
10.244.0.190:9080                                HEALTHY                  outbound|9080||details.default.svc.cluster.local
10.244.0.185:9200                                HEALTHY                  outbound|9200||elasticsearch.skywalking.svc.cluster.local

                  "uid": "$datasource"
               },
               "expr": "sum by (cluster, namespace, job) (\n    rate(\n        process_cpu_seconds_total{\n            cluster=~\"$cluster\",\n            namespace=~\"$namespace\",\n            job=~\"$job\"\n        }\n    [$__rate_interval])\n)\n",
               "intervalFactor": 2,
               "legendFormat": "{{cluster}} - {{namespace}}\n"
            }
         ],
         "title": "CPU Usage",

* Use Cluster Autoscaler 0.5.1, which fixes an issue in Cluster Autoscaler 0.5 where the cluster may be scaled up unnecessarily. Also the status of Cluster Autoscaler is now exposed in kube-system/cluster-autoscaler-status config map. ([#43745](https://github.com/kubernetes/kubernetes/pull/43745), [@mwielgus](https://github.com/mwielgus))

                    }
                  },
                  {
                    "match": {
                      "prefix": "/static",
                      "case_sensitive": true
                    },
                    "route": {
                      "cluster": "outbound|9080||productpage.default.svc.cluster.local",
                      "timeout": "0s",

cluster/agent                                                       cluster/agent                         -        -          -               STATIC     
cluster/inbound-vip|8000|http|httpbin.default.svc.cluster.local     httpbin.default.svc.cluster.local     8000     http       inbound-vip     EDS