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adding in Chris Urwin's feedback
This commit is contained in:
MBishop17
@@ -173,7 +173,7 @@ To create HPA resources based on resource metrics such as CPU and memory use, yo
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# kubectl -n kube-system logs metrics-server-6fbfb84cdd-t2fk9
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```
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Then review the log to confirm that that the `metrics-server` package is running.
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```
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{{% accordion id="metrics-server-run-check" label="Metrics Server Log Output" %}}
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I0723 08:09:56.193136 1 heapster.go:71] /metrics-server --source=kubernetes.summary_api:''
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I0723 08:09:56.193574 1 heapster.go:72] Metrics Server version v0.2.1
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I0723 08:09:56.194480 1 configs.go:61] Using Kubernetes client with master "https://10.43.0.1:443" and version
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@@ -184,7 +184,8 @@ To create HPA resources based on resource metrics such as CPU and memory use, yo
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[restful] 2018/07/23 08:09:57 log.go:33: [restful/swagger] listing is available at https:///swaggerapi
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[restful] 2018/07/23 08:09:57 log.go:33: [restful/swagger] https:///swaggerui/ is mapped to folder /swagger-ui/
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I0723 08:09:57.394080 1 serve.go:85] Serving securely on 0.0.0.0:443
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```
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{{% /accordion %}}
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1. Check that the metrics api is accessible from kubectl.
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@@ -255,7 +256,7 @@ For HPA to use custom metrics from Prometheus, package [k8s-prometheus-adapter](
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# kubectl logs prometheus-adapter-prometheus-adapter-568674d97f-hbzfx -n kube-system
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```
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Then review the log output to confirm the service is running.
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```
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{{% accordion id="prometheus-logs" label="Prometheus Adaptor Logs" %}}
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...
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I0724 10:18:45.696679 1 round_trippers.go:436] GET https://10.43.0.1:443/api/v1/namespaces/default/pods?labelSelector=app%3Dhello-world 200 OK in 2 milliseconds
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I0724 10:18:45.696695 1 round_trippers.go:442] Response Headers:
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@@ -268,7 +269,9 @@ For HPA to use custom metrics from Prometheus, package [k8s-prometheus-adapter](
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I0724 10:18:45.699939 1 wrap.go:42] GET /apis/custom.metrics.k8s.io/v1beta1/namespaces/default/pods/%2A/fs_read?labelSelector=app%3Dhello-world: (12.431262ms) 200 [[kube-controller-manager/v1.10.1 (linux/amd64) kubernetes/d4ab475/system:serviceaccount:kube-system:horizontal-pod-autoscaler] 10.42.0.0:24268]
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I0724 10:18:51.727845 1 request.go:836] Request Body: {"kind":"SubjectAccessReview","apiVersion":"authorization.k8s.io/v1beta1","metadata":{"creationTimestamp":null},"spec":{"nonResourceAttributes":{"path":"/","verb":"get"},"user":"system:anonymous","group":["system:unauthenticated"]},"status":{"allowed":false}}
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...
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```
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{{% /accordion %}}
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1. Check that the metrics API is accessible from kubectl.
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@@ -277,23 +280,23 @@ For HPA to use custom metrics from Prometheus, package [k8s-prometheus-adapter](
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# kubectl get --raw /apis/custom.metrics.k8s.io/v1beta1
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```
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If the API is accessible, you should receive output that's similar to what follows.
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```
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{{% accordion id="custom-metrics-api-response" label="API Response" %}}
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{"kind":"APIResourceList","apiVersion":"v1","groupVersion":"custom.metrics.k8s.io/v1beta1","resources":[{"name":"pods/fs_usage_bytes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/memory_rss","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/spec_cpu_period","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/cpu_cfs_throttled","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/fs_io_time","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/fs_read","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/fs_sector_writes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/cpu_user","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/last_seen","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/tasks_state","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/spec_cpu_quota","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/start_time_seconds","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/fs_limit_bytes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/fs_write","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/memory_cache","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/memory_usage_bytes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/cpu_cfs_periods","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/cpu_cfs_throttled_periods","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/fs_reads_merged","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/memory_working_set_bytes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/network_udp_usage","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/fs_inodes_free","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/fs_inodes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/fs_io_time_weighted","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/memory_failures","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/memory_swap","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/spec_cpu_shares","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/spec_memory_swap_limit_bytes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/cpu_usage","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/fs_io_current","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/fs_writes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/memory_failcnt","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/fs_reads","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/fs_writes_bytes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/fs_writes_merged","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/network_tcp_usage","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/memory_max_usage_bytes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/spec_memory_limit_bytes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/spec_memory_reservation_limit_bytes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/cpu_load_average_10s","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/cpu_system","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/fs_reads_bytes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/fs_sector_reads","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]}]}
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```
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{{% /accordion %}}
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- If you are accessing the cluster through Rancher, enter your Server URL in the kubectl config in the following format: `https://<RANCHER_URL>/k8s/clusters/<CLUSTER_ID>`. Add the suffix `/k8s/clusters/<CLUSTER_ID>` to API path.
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```
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# kubectl get --raw /k8s/clusters/<CLUSTER_ID>/apis/custom.metrics.k8s.io/v1beta1
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```
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If the API is accessible, you should receive output that's similar to what follows.
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```
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{"kind":"APIResourceList","apiVersion":"v1","groupVersion":"custom.metrics.k8s.io/v1beta1","resources":[{"name":"pods/fs_usage_bytes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/memory_rss","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/spec_cpu_period","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/cpu_cfs_throttled","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/fs_io_time","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/fs_read","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/fs_sector_writes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/cpu_user","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/last_seen","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/tasks_state","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/spec_cpu_quota","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/start_time_seconds","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/fs_limit_bytes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/fs_write","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/memory_cache","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/memory_usage_bytes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/cpu_cfs_periods","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/cpu_cfs_throttled_periods","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/fs_reads_merged","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/memory_working_set_bytes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/network_udp_usage","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/fs_inodes_free","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/fs_inodes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/fs_io_time_weighted","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/memory_failures","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/memory_swap","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/spec_cpu_shares","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/spec_memory_swap_limit_bytes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/cpu_usage","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/fs_io_current","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/fs_writes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/memory_failcnt","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/fs_reads","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/fs_writes_bytes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/fs_writes_merged","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/network_tcp_usage","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/memory_max_usage_bytes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/spec_memory_limit_bytes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/spec_memory_reservation_limit_bytes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/cpu_load_average_10s","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/cpu_system","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/fs_reads_bytes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/fs_sector_reads","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]}]}
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```
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{{% accordion id="custom-metrics-api-response-rancher" label="API Response" %}}
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{"kind":"APIResourceList","apiVersion":"v1","groupVersion":"custom.metrics.k8s.io/v1beta1","resources":[{"name":"pods/fs_usage_bytes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/memory_rss","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/spec_cpu_period","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/cpu_cfs_throttled","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/fs_io_time","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/fs_read","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/fs_sector_writes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/cpu_user","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/last_seen","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/tasks_state","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/spec_cpu_quota","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/start_time_seconds","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/fs_limit_bytes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/fs_write","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/memory_cache","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/memory_usage_bytes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/cpu_cfs_periods","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/cpu_cfs_throttled_periods","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/fs_reads_merged","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/memory_working_set_bytes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/network_udp_usage","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/fs_inodes_free","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/fs_inodes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/fs_io_time_weighted","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/memory_failures","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/memory_swap","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/spec_cpu_shares","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/spec_memory_swap_limit_bytes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/cpu_usage","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/fs_io_current","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/fs_writes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/memory_failcnt","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/fs_reads","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/fs_writes_bytes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/fs_writes_merged","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/network_tcp_usage","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/memory_max_usage_bytes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/spec_memory_limit_bytes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/spec_memory_reservation_limit_bytes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/cpu_load_average_10s","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/cpu_system","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/fs_reads_bytes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]},{"name":"pods/fs_sector_reads","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":["get"]}]}
|
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{{% /accordion %}}
|
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|
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|
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#### Assigning Additional Required Roles to Your HPA
|
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|
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#### ClusterRole and ClusterRoleBinding
|
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|
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By default, HPA reads resource and custom metrics with the user `system:anonymous`. `system:anonymous` has the `view-resource-metrics` and `view-custom-metrics` ClusterRole and ClusterRoleBindings assigned to it, which are used to access metrics.
|
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By default, HPA reads resource and custom metrics with the user `system:anonymous`. Assign `system:anonymous` the the `view-resource-metrics` and `view-custom-metrics` in the ClusterRole and ClusterRoleBindings manifests. These roles are used to access metrics.
|
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|
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To do it, follow these steps:
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@@ -545,12 +548,14 @@ For HPA to work correctly, service deployments should have resources request def
|
||||
{{% /accordion %}}
|
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|
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|
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1. Generate a load for the service to test that your pods autoscale as intended. You can use any tool for this testing, but we're using [Hey](https://github.com/rakyll/hey).
|
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1. Generate a load for the service to test that your pods autoscale as intended. You can use any load-testing tool (Hey, Gaztling, etc.), but we're using [Hey](https://github.com/rakyll/hey).
|
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|
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1. Test that pod autoscaling works as intended.<br/></br>
|
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**To Test Autoscaling Using Resource Metrics:**
|
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{{% accordion id="observe-upscale-2-pods-cpu" label="Upscale to 2 Pods: CPU Usage Up to Target" %}}
|
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1. Enter the following command.
|
||||
Use your load testing tool to to scale up to two pods based on CPU Usage.
|
||||
|
||||
1. View your HPA.
|
||||
```
|
||||
# kubectl describe hpa
|
||||
```
|
||||
@@ -578,7 +583,7 @@ For HPA to work correctly, service deployments should have resources request def
|
||||
---- ------ ---- ---- -------
|
||||
Normal SuccessfulRescale 13s horizontal-pod-autoscaler New size: 2; reason: cpu resource utilization (percentage of request) above target
|
||||
```
|
||||
1. Enter the following command.
|
||||
1. Enter the following command to confirm you've scaled to two pods.
|
||||
```
|
||||
# kubectl get pods
|
||||
```
|
||||
@@ -590,7 +595,7 @@ For HPA to work correctly, service deployments should have resources request def
|
||||
```
|
||||
{{% /accordion %}}
|
||||
{{% accordion id="observe-upscale-3-pods-cpu-cooldown" label="Upscale to 3 pods: CPU Usage Up to Target" %}}
|
||||
Autoscale up to 3 pods when cpu usage limit is up to target for every `horizontal-pod-autoscaler-upscale-delay` 3 minutes by default.
|
||||
Use your load testing tool to upspace to 3 pods based on CPU usage with `horizontal-pod-autoscaler-upscale-delay` set to 3 minutes.
|
||||
|
||||
1. Enter the following command.
|
||||
```
|
||||
@@ -621,7 +626,7 @@ Autoscale up to 3 pods when cpu usage limit is up to target for every `horizonta
|
||||
Normal SuccessfulRescale 4m horizontal-pod-autoscaler New size: 2; reason: cpu resource utilization (percentage of request) above target
|
||||
Normal SuccessfulRescale 16s horizontal-pod-autoscaler New size: 3; reason: cpu resource utilization (percentage of request) above target
|
||||
```
|
||||
2. Enter the following command.
|
||||
2. Enter the following command to confirm three pods are running.
|
||||
```
|
||||
# kubectl get pods
|
||||
```
|
||||
@@ -634,7 +639,7 @@ Autoscale up to 3 pods when cpu usage limit is up to target for every `horizonta
|
||||
```
|
||||
{{% /accordion %}}
|
||||
{{% accordion id="observe-downscale-1-pod" label="Downscale to 1 Pod: All Metrics Below Target" %}}
|
||||
Autoscale down to 1 pod when all metrics below target for `horizontal-pod-autoscaler-downscale-delay` 5 minutes by default.
|
||||
Use your load testing to to scale down to 1 pod when all metrics are below target for `horizontal-pod-autoscaler-downscale-delay` (5 minutes by default).
|
||||
|
||||
1. Enter the following command.
|
||||
```
|
||||
@@ -670,7 +675,7 @@ Autoscale down to 1 pod when all metrics below target for `horizontal-pod-autosc
|
||||
<br/>
|
||||
**To Test Autoscaling Using Custom Metrics:**
|
||||
{{% accordion id="custom-observe-upscale-2-pods-cpu" label="Upscale to 2 Pods: CPU Usage Up to Target" %}}
|
||||
Autoscale up to 2 pods when CPU usage is up to target.
|
||||
Use your load testing tool to upscale two pods based on CPU usage.
|
||||
|
||||
1. Enter the following command.
|
||||
```
|
||||
@@ -701,7 +706,7 @@ Autoscale up to 2 pods when CPU usage is up to target.
|
||||
---- ------ ---- ---- -------
|
||||
Normal SuccessfulRescale 16s horizontal-pod-autoscaler New size: 2; reason: cpu resource utilization (percentage of request) above target
|
||||
```
|
||||
1. Enter the following command.
|
||||
1. Enter the following command to confirm two pods are running.
|
||||
```
|
||||
# kubectl get pods
|
||||
```
|
||||
@@ -713,7 +718,7 @@ Autoscale up to 2 pods when CPU usage is up to target.
|
||||
```
|
||||
{{% /accordion %}}
|
||||
{{% accordion id="observe-upscale-3-pods-cpu-cooldown-2" label="Upscale to 3 Pods: CPU Usage Up to Target" %}}
|
||||
Autoscale up to 3 pods when cpu_system usage limit is up to target.
|
||||
Use your load testing tool to scale up to three pods when the cpu_system usage limit is up to target.
|
||||
|
||||
1. Enter the following command.
|
||||
```
|
||||
@@ -745,7 +750,7 @@ Autoscale up to 3 pods when cpu_system usage limit is up to target.
|
||||
Normal SuccessfulRescale 3m horizontal-pod-autoscaler New size: 2; reason: cpu resource utilization (percentage of request) above target
|
||||
Normal SuccessfulRescale 3s horizontal-pod-autoscaler New size: 3; reason: pods metric cpu_system above target
|
||||
```
|
||||
1. Enter the following command.
|
||||
1. Enter the following command to confirm three pods are running.
|
||||
```
|
||||
# kubectl get pods
|
||||
```
|
||||
@@ -759,7 +764,7 @@ Autoscale up to 3 pods when cpu_system usage limit is up to target.
|
||||
```
|
||||
{{% /accordion %}}
|
||||
{{% accordion id="observe-upscale-4-pods" label="Upscale to 4 Pods: CPU Usage Up to Target" %}}
|
||||
Autoscale up to 4 pods when cpu usage limit is up to target for every `horizontal-pod-autoscaler-upscale-delay` 3 minutes by default.
|
||||
Use your load testing tool to upscale to four pods based on CPU usage. `horizontal-pod-autoscaler-upscale-delay` is set to three minutes by default.
|
||||
|
||||
1. Enter the following command.
|
||||
```
|
||||
@@ -792,7 +797,7 @@ Autoscale up to 4 pods when cpu usage limit is up to target for every `horizonta
|
||||
Normal SuccessfulRescale 3m horizontal-pod-autoscaler New size: 3; reason: pods metric cpu_system above target
|
||||
Normal SuccessfulRescale 4s horizontal-pod-autoscaler New size: 4; reason: cpu resource utilization (percentage of request) above target
|
||||
```
|
||||
1. Enter the following command.
|
||||
1. Enter the following command to confirm four pods are running.
|
||||
```
|
||||
# kubectl get pods
|
||||
```
|
||||
@@ -806,7 +811,7 @@ Autoscale up to 4 pods when cpu usage limit is up to target for every `horizonta
|
||||
```
|
||||
{{% /accordion %}}
|
||||
{{% accordion id="custom-metrics-observe-downscale-1-pod" label="Downscale to 1 Pod: All Metrics Below Target" %}}
|
||||
Autoscale down to 1 pods when all metrics below target for `horizontal-pod-autoscaler-downscale-delay` 5 minutes by default.
|
||||
Use your load testing tool to scale down to one pod when all metrics below target for `horizontal-pod-autoscaler-downscale-delay`.
|
||||
|
||||
1. Enter the following command.
|
||||
```
|
||||
@@ -840,7 +845,7 @@ Autoscale down to 1 pods when all metrics below target for `horizontal-pod-autos
|
||||
Normal SuccessfulRescale 5m horizontal-pod-autoscaler New size: 4; reason: cpu resource utilization (percentage of request) above target
|
||||
Normal SuccessfulRescale 13s horizontal-pod-autoscaler New size: 1; reason: All metrics below target
|
||||
```
|
||||
1. Enter the following command.
|
||||
1. Enter the following command to confirm a single pods is running.
|
||||
```
|
||||
# kubectl get pods
|
||||
```
|
||||
|
||||
Reference in New Issue
Block a user