我正在尝试在我的kubernetes集群中设置自动缩放。在部署heapster并为其提供服务之后。我正面临以下错误。
horizontal.go:99] Failed to reconcile nginx: failed to compute desired number of replicas based on CPU utilization for Deployment/default/nginx: failed to get CPU utilization: failed to get CPU consumption and request: failed to unmarshall heapster response: json: cannot unmarshal object into Go value of type []v1alpha1.PodMetrics
Sep 09 18:15:37 dev1-132869446-3-157772786 kube-controller-manager[27951]: I0909 18:15:37.432445 27951 horizontal.go:403] Successfully updated status for nginx
Sep 09 18:15:37 dev1-132869446-3-157772786 kube-controller-manager[27951]: }
Sep 09 18:15:37 dev1-132869446-3-157772786 kube-controller-manager[27951]: ]
Sep 09 18:15:37 dev1-132869446-3-157772786 kube-controller-manager[27951]: }
Sep 09 18:15:37 dev1-132869446-3-157772786 kube-controller-manager[27951]: ]
Sep 09 18:15:37 dev1-132869446-3-157772786 kube-controller-manager[27951]: }
Sep 09 18:15:37 dev1-132869446-3-157772786 kube-controller-manager[27951]: }
Sep 09 18:15:37 dev1-132869446-3-157772786 kube-controller-manager[27951]: "memory": "1512Ki"
Sep 09 18:15:37 dev1-132869446-3-157772786 kube-controller-manager[27951]: "cpu": "0",
Sep 09 18:15:37 dev1-132869446-3-157772786 kube-controller-manager[27951]: "usage": {
Sep 09 18:15:37 dev1-132869446-3-157772786 kube-controller-manager[27951]: "name": "nginx",
Sep 09 18:15:37 dev1-132869446-3-157772786 kube-controller-manager[27951]: {
Sep 09 18:15:37 dev1-132869446-3-157772786 kube-controller-manager[27951]: "containers": [
Sep 09 18:15:37 dev1-132869446-3-157772786 kube-controller-manager[27951]: "window": "1m0s",
Sep 09 18:15:37 dev1-132869446-3-157772786 kube-controller-manager[27951]: "timestamp": "2016-09-09T18:15:00Z",
Sep 09 18:15:37 dev1-132869446-3-157772786 kube-controller-manager[27951]: },
Sep 09 18:15:37 dev1-132869446-3-157772786 kube-controller-manager[27951]: "creationTimestamp": "2016-09-09T18:15:37Z"
Sep 09 18:15:37 dev1-132869446-3-157772786 kube-controller-manager[27951]: "namespace": "default",
Sep 09 18:15:37 dev1-132869446-3-157772786 kube-controller-manager[27951]: "name": "nginx-24809263-3idn3",
Sep 09 18:15:37 dev1-132869446-3-157772786 kube-controller-manager[27951]: "metadata": {
Sep 09 18:15:37 dev1-132869446-3-157772786 kube-controller-manager[27951]: {
Sep 09 18:15:37 dev1-132869446-3-157772786 kube-controller-manager[27951]: "items": [
Sep 09 18:15:37 dev1-132869446-3-157772786 kube-controller-manager[27951]: "metadata": {},
Sep 09 18:15:37 dev1-132869446-3-157772786 kube-controller-manager[27951]: I0909 18:15:37.424164 27951 metrics_client.go:166] Heapster metrics result: {
Heapster成功从pod中提取指标，可在
上找到{
"metadata": {},
"items": [
{
"metadata": {
"name": "nginx-24809263-3idn3",
"namespace": "default",
"creationTimestamp": "2016-09-10T02:57:03Z"
},
"timestamp": "2016-09-10T02:56:00Z",
"window": "1m0s",
"containers": [
{
"name": "nginx",
"usage": {
"cpu": "0",
"memory": "1400Ki"
}
}
]
}
]
}
我遇到了所有heapster版本的问题（heapster：canary，v1.2.0-beta.2，v1.1.0）
以下是有关我的环境的更多详细信息
Kubernetes版本 客户端版本：version.Info {Major：＆＃34; 1＆＃34;，Minor：＆＃34; 3＆＃34;，GitVersion：＆＃34; v1.3.5＆＃34;，GitCommit：＆＃34; b0deb2eb8f4037421077f77cb163dbb4c0a2a9f5＆ ＃34;，GitTreeState：＆＃34; clean＆＃34;，BuildDate：＆＃34; 2016-08-11T20：29：08Z＆＃34;，GoVersion：＆＃34; go1.6.2＆＃34;，编译： ＆＃34; gc＆＃34;，平台：＆＃34; linux / amd64＆＃34;} 服务器版本：version.Info {Major：＆＃34; 1＆＃34;，Minor：＆＃34; 3＆＃34;，GitVersion：＆＃34; v1.3.5＆＃34;，GitCommit：＆＃34; b0deb2eb8f4037421077f77cb163dbb4c0a2a9f5＆ ＃34;，GitTreeState：＆＃34; clean＆＃34;，BuildDate：＆＃34; 2016-08-11T20：21：58Z＆＃34;，GoVersion：＆＃34; go1.6.2＆＃34;，编译： ＆＃34; gc＆＃34;，平台：＆＃34; linux / amd64＆＃34;}
自定义/内部部署群集
操作系统（例如来自/ etc / os-release）：NAME =＆＃34; CentOS Linux＆＃34;版本=＆＃34; 7（核心）＆＃34; 内核（例如uname -a）：Linux dev1-132869446-3-157772786 3.10.0-327.13.1.el7.x86_64＃1 SMP Thu Mar 31 16:04:38 UTC 2016 x86_64 x86_64 x86_64 GNU / Linux
<{3}}中的建议无法解决问题
答案 0 :(得分：1)
这是由于版本不匹配Kubernetes 1.3.5与Heapster v1.1.0-beta2一起使用