Merge pull request #26596 from tengqm/kube-scheduler-config

Kube scheduler config
This commit is contained in:
Kubernetes Prow Robot
2021-04-01 18:48:11 -07:00
committed by GitHub
6 changed files with 2175 additions and 11 deletions
@@ -87,6 +87,7 @@ of the scheduler:
* Read about [scheduler performance tuning](/docs/concepts/scheduling-eviction/scheduler-perf-tuning/)
* Read about [Pod topology spread constraints](/docs/concepts/workloads/pods/pod-topology-spread-constraints/)
* Read the [reference documentation](/docs/reference/command-line-tools-reference/kube-scheduler/) for kube-scheduler
* Read the [kube-scheduler config (v1beta1)](/docs/reference/config-api/kube-scheduler-config.v1beta1/) reference
* Learn about [configuring multiple schedulers](/docs/tasks/extend-kubernetes/configure-multiple-schedulers/)
* Learn about [topology management policies](/docs/tasks/administer-cluster/topology-manager/)
* Learn about [Pod Overhead](/docs/concepts/scheduling-eviction/pod-overhead/)
@@ -94,3 +95,4 @@ of the scheduler:
* [Volume Topology Support](/docs/concepts/storage/storage-classes/#volume-binding-mode)
* [Storage Capacity Tracking](/docs/concepts/storage/storage-capacity/)
* [Node-specific Volume Limits](/docs/concepts/storage/storage-limits/)
@@ -24,8 +24,6 @@ in a process called _Binding_.
This page explains performance tuning optimizations that are relevant for
large Kubernetes clusters.
<!-- body -->
In large clusters, you can tune the scheduler's behaviour balancing
@@ -44,8 +42,10 @@ should use its compiled-in default.
If you set `percentageOfNodesToScore` above 100, kube-scheduler acts as if you
had set a value of 100.
To change the value, edit the kube-scheduler configuration file (this is likely
to be `/etc/kubernetes/config/kube-scheduler.yaml`), then restart the scheduler.
To change the value, edit the
[kube-scheduler configuration file](/docs/reference/config-api/kube-scheduler-config.v1beta1/)
and then restart the scheduler.
In many cases, the configuration file can be found at `/etc/kubernetes/config/kube-scheduler.yaml`.
After you have made this change, you can run
@@ -99,7 +99,6 @@ algorithmSource:
percentageOfNodesToScore: 50
```
## Tuning percentageOfNodesToScore
`percentageOfNodesToScore` must be a value between 1 and 100 with the default
@@ -160,4 +159,7 @@ Node 1, Node 5, Node 2, Node 6, Node 3, Node 4
After going over all the Nodes, it goes back to Node 1.
## {{% heading "whatsnext" %}}
* Check the [kube-scheduler configuration reference (v1beta1)](/docs/reference/config-api/kube-scheduler-config.v1beta1/)