From the [performance test report](http://blog.kubernetes.io/2015/09/kubernetes-performance-measurements-and.html) we can find that the `kubernetes` can support 100 nodes.

To do the same test, I have set up a 100 nodes `kubernetes` cluster, but the `kube-apiserver` became slow when the cluster is set up. That meant when I typed `kubectl get nodes`, it suspended and can not get any respond.

To find the reason, I chech the connections of `kube-apiserver` and found there were about 660+ ESTABLISHED connections on port 8080 (I used the insecure port of apiserver), and when I stop some(about 20) slaves, the `apiserver` recovered common. So I thought the reason for `kube-apiserver` becoming slow is the too large concurrency.

So I am wonder how the Google set up a 100 nodes cluster? Is there something wrong in my work?

PS: The `--max-requests-inflight` of `kube-apiserver` has been set to 0.