Merge branch 'master' of git://github.com/kubernetes/website into release-1.12
* 'master' of git://github.com/kubernetes/website: (222 commits) Add temporary owners for 1.13 release (#11453) fix Minikube 404 error. (#11461) Resolve conflicts against dev-1.13 for /ko contents (#11439) replace `run` with `create deployment` (#11392) Updated list all pods with -o wide comment (#11394) fix broken link for KubeletConfiguration (#11423) Update on pod-priority-preemption.md (#11418) Add guidelines for working with localized content (#11415) Update what-is-kubernetes.md (#11399) Remove redundant close tags and little bit formatting (#11389) Add SysEleven MetaKube as hosted solution (#11393) Add rui to sig-docs-zh team (#11391) fix Improper translation (#11384) Add pigletfly(WangBing) as a sig-docs-zh-reviewer (#11370) update link to CloudProvider Interface (#11228) Fix the "my-scheduler-as-kube-scheduler" ClusterRoleBinding. (#11112) fix non-existing "CloudProvider Interface" link (#10953) Updated ingress.md (#11213) Further updates to TLS Bootstrapping (#11258) Updated 'exec' description (#11365) ...
This commit is contained in:
@@ -159,7 +159,7 @@ replica counts is chosen. If any of those metrics cannot be converted
|
||||
into a desired replica count (e.g. due to an error fetching the metrics
|
||||
from the metrics APIs), scaling is skipped.
|
||||
|
||||
Finally, just before HPA scales the target, the scale reccomendation is recorded. The
|
||||
Finally, just before HPA scales the target, the scale recommendation is recorded. The
|
||||
controller considers all recommendations within a configurable window choosing the
|
||||
highest recommendation from within that window. This value can be configured using the `--horizontal-pod-autoscaler-downscale-stabilization-window` flag, which defaults to 5 minutes.
|
||||
This means that scaledowns will occur gradually, smoothing out the impact of rapidly
|
||||
@@ -222,11 +222,11 @@ upscale delay.
|
||||
The default value is 5 minutes (`5m0s`).
|
||||
|
||||
{{< note >}}
|
||||
**Note**: When tuning these parameter values, a cluster operator should be aware of
|
||||
the possible consequences. If the delay (cooldown) value is set too long, there
|
||||
could be complaints that the Horizontal Pod Autoscaler is not responsive to workload
|
||||
changes. However, if the delay value is set too short, the scale of the replicas set
|
||||
may keep thrashing as usual.
|
||||
When tuning these parameter values, a cluster operator should be aware of the possible
|
||||
consequences. If the delay (cooldown) value is set too long, there could be complaints
|
||||
that the Horizontal Pod Autoscaler is not responsive to workload changes. However, if
|
||||
the delay value is set too short, the scale of the replicas set may keep thrashing as
|
||||
usual.
|
||||
{{< /note >}}
|
||||
|
||||
## Support for multiple metrics
|
||||
@@ -238,10 +238,12 @@ proposed scales will be used as the new scale.
|
||||
|
||||
## Support for custom metrics
|
||||
|
||||
**Note**: Kubernetes 1.2 added alpha support for scaling based on application-specific metrics using special annotations.
|
||||
{{< note >}}
|
||||
Kubernetes 1.2 added alpha support for scaling based on application-specific metrics using special annotations.
|
||||
Support for these annotations was removed in Kubernetes 1.6 in favor of the new autoscaling API. While the old method for collecting
|
||||
custom metrics is still available, these metrics will not be available for use by the Horizontal Pod Autoscaler, and the former
|
||||
annotations for specifying which custom metrics to scale on are no longer honored by the Horizontal Pod Autoscaler controller.
|
||||
{{< /note >}}
|
||||
|
||||
Kubernetes 1.6 adds support for making use of custom metrics in the Horizontal Pod Autoscaler.
|
||||
You can add custom metrics for the Horizontal Pod Autoscaler to use in the `autoscaling/v2beta2` API.
|
||||
|
||||
Reference in New Issue
Block a user