blocks|key|2694597|text|在kubernetes中，hpa可以说是未知的。在这种情况下，你应该检查几个地方。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2694598|K8s+1.9中的|2694599|使用自定义指标。因此，为了让您的k8s群集运行|ordered-list-item|2694600|2694601|对于heapster，你应该检查kube-controller-manager。添加这些参数。|2694602|2694603|--horizontal-pod-autoscaler-use-rest-clients=false|unordered-list-item|2694604|--horizontal-pod-autoscaler-sync-period=10s|2694605|2694606|基于https://github.com/kubernetes/kubernetes/issues/57673|offset|length|2694607|2694608|的情况下，你应该改变你的堆部署。|2694609|--source=kubernetes:https://kubernetes.default?kubeletPort=10250&kubeletHttps=true&insecure=true参数为enough.|2694610|2694611|2694612|​|2694613|我发现这个链接是非常有用的https://blog.inkubate.io/deploy-kubernetes-1-9-from-scratch-on-vmware-vsphere/|2694614|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/kubernetes/kubernetes/issues/57673|1|https://kubernetes.default/?kubeletPort=10250&kubeletHttps=true&insecure=true|2|https://blog.inkubate.io/deploy-kubernetes-1-9-from-scratch-on-vmware-vsphere/^0|0|0|0|0|0|0|0|0|0|2|1H|0|0|0|1|K|24|1|1|0|0|0|D|26|2|0^^$0|@$1|2|3|4|5|6|7|1H|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|1I|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|1J|8|@]|9|@]|A|$]]|$1|G|3|-4|5|6|7|1K|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|1L|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|1M|8|@]|9|@]|A|$]]|$1|K|3|L|5|M|7|1N|8|@]|9|@]|A|$]]|$1|N|3|O|5|M|7|1O|8|@]|9|@]|A|$]]|$1|P|3|-4|5|6|7|1P|8|@]|9|@]|A|$]]|$1|Q|3|R|5|6|7|1Q|8|@]|9|@$S|1R|T|1S|1|1T]]|A|$]]|$1|U|3|-4|5|6|7|1U|8|@]|9|@]|A|$]]|$1|V|3|W|5|F|7|1V|8|@]|9|@]|A|$]]|$1|X|3|Y|5|M|7|1W|8|@]|9|@$S|1X|T|1Y|1|1Z]]|A|$]]|$1|Z|3|-4|5|6|7|20|8|@]|9|@]|A|$]]|$1|10|3|-4|5|6|7|21|8|@]|9|@]|A|$]]|$1|11|3|12|5|6|7|22|8|@]|9|@]|A|$]]|$1|13|3|14|5|6|7|23|8|@]|9|@$S|24|T|25|1|26]]|A|$]]|$1|15|3|-4|5|6|7|27|8|@]|9|@]|A|$]]]|16|$17|$5|18|19|1A|A|$1B|1C]]|1D|$5|18|19|1A|A|$1B|1E]]|1F|$5|18|19|1A|A|$1B|1G]]]]

In kubernetes it can say unknown for hpa. In this situation you should check several places.

<ol>
<li>In K8s 1.9 uses custom metrics. so In order to work your k8s cluster </li>
</ol>

with heapster you should check kube-controller-manager.
Add these parameters.

<ul>
<li>--horizontal-pod-autoscaler-use-rest-clients=false</li>
<li>--horizontal-pod-autoscaler-sync-period=10s</li>
</ul>

based on <a href="https://github.com/kubernetes/kubernetes/issues/57673" rel="nofollow noreferrer">https://github.com/kubernetes/kubernetes/issues/57673</a>

<ol start="2">
<li>Case you should change your heapster deployment.

<ul>
<li>--source=kubernetes:<a href="https://kubernetes.default?kubeletPort=10250&amp;kubeletHttps=true&amp;insecure=true" rel="nofollow noreferrer">https://kubernetes.default?kubeletPort=10250&amp;kubeletHttps=true&amp;insecure=true</a> parameter is enough.</li>
</ul></li>
</ol>

I found this link very informative <a href="https://blog.inkubate.io/deploy-kubernetes-1-9-from-scratch-on-vmware-vsphere/" rel="nofollow noreferrer">https://blog.inkubate.io/deploy-kubernetes-1-9-from-scratch-on-vmware-vsphere/</a>

blocks|key|2484221|text|您可能必须启用metrics-server。Heapster现在已弃用。还要确保您的Kubernetes版本高于1.7。你可以输入kubectl+get+nodes查看这个buy。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2484222|您可以通过查看minikube插件来启用指标服务器。|2484223|minikube+addons+list会给你一个插件列表。|2484224|minikube+addons+enable+metrics-server启用指标服务器。|2484225|请稍等几分钟，如果键入kubectl+get+hpa，则应显示TARGETS+<unknown>的百分比。|2484226|entityMap^0|1T|H|0|0|0|K|0|0|11|0|B|F|V|H|0^^$0|@$1|2|3|4|5|6|7|P|8|@$9|Q|A|R|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|S|8|@]|D|@]|E|$]]|$1|H|3|I|5|6|7|T|8|@$9|U|A|V|B|C]]|D|@]|E|$]]|$1|J|3|K|5|6|7|W|8|@$9|X|A|Y|B|C]]|D|@]|E|$]]|$1|L|3|M|5|6|7|Z|8|@$9|10|A|11|B|C]|$9|12|A|13|B|C]]|D|@]|E|$]]|$1|N|3|-4|5|6|7|14|8|@]|D|@]|E|$]]]|O|$]]

You may have had to enable a metrics-server. Heapster is now deprecated. Also make sure you have Kubernetes version greater than 1.7. You can check this buy typing <code>kubectl get nodes</code>.

You can enable the metrics server by looking at the minikube addons.

<code>minikube addons list</code> gives you the list of addons.

<code>minikube addons enable metrics-server</code> enables metrics-server.

Wait a few minutes, then if you type <code>kubectl get hpa</code> the percentage for the <code>TARGETS &lt;unknown&gt;</code> should appear.

blocks|key|2484247|text|您必须启用指标服务器，您可以使用helm图表来执行此操作|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2484248|helm图表是添加指标服务器的简单方法|2484249|helm+install+stable/metrics-server|code-block|syntax|javascript|2484250|在pods开始运行并打开kubectl+get+hpa后等待3-4分钟，您可以检查目标是否正在显示值。|offset|length|style|CODE|2484251|entityMap^0|0|0|0|C|F|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|R|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|S|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|T|8|@$K|U|L|V|M|N]]|9|@]|A|$]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

you have to enable the metrics server which you can do it using the helm chart 

helm chart is easy way to add the metrics server

<pre><code>helm install stable/metrics-server
</code></pre>

wait for 3-4 minutes after pods started running and you open <code>kubectl get hpa</code> you can check there target is showing values.

I have installed kubeadm. Heapster show me metrics, but hpa no

kubectl get hpa

<pre><code>NAME REFERENCE TARGETS MINPODS MAXPODS REPLICAS AGE

httpd Deployment/httpd &lt;unknown&gt; / 2% 2 5 2 19m
</code></pre>

kubeadm version

<pre><code>kubeadm version: version.Info{Major:"1", Minor:"6", GitVersion:"v1.6.6", GitCommit:"7fa1c1756d8bc963f1a389f4a6937dc71f08ada2", GitTreeState:"clean", BuildDate:"2017-06-16T18:21:54Z", GoVersion:"go1.7.6", Compiler:"gc", Platform:"linux/amd64"}
</code></pre>

docker version 

Client:

<pre><code>Version: 1.11.2
 API version: 1.23
 Go version: go1.5.4
 Git commit: b9f10c9
 Built: Wed Jun 1 22:00:43 2016
 OS/Arch: linux/amd64
</code></pre>

kubectl get hpa targets:unknow

Kubernetes

服务器

Docker

我已经安装了kubeadm。Heapster显示指标，但hpa否kubectl获取hpaNAME REFERENCE TARGETS MINPODS MAXPODS REPLICAS AGEhttpd Deployment/httpd <unknow...

问kubectl获取hpa目标:未知
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