Merge pull request #45648 from asa3311/sync-zh-108

[zh] sync kube-scheduler taint-and-toleration topology-spread-constraints
pull/45716/head
Kubernetes Prow Robot 2024-03-25 07:53:05 -07:00 committed by GitHub
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3 changed files with 6 additions and 6 deletions

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@ -122,7 +122,7 @@ kube-scheduler 给一个 Pod 做调度选择时包含两个步骤:
<!--
The _filtering_ step finds the set of Nodes where it's feasible to
schedule the Pod. For example, the PodFitsResources filter checks whether a
candidate Node has enough available resource to meet a Pod's specific
candidate Node has enough available resources to meet a Pod's specific
resource requests. After this step, the node list contains any suitable
Nodes; often, there will be more than one. If the list is empty, that
Pod isn't (yet) schedulable.

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@ -141,7 +141,7 @@ An empty `effect` matches all effects with key `key1`.
{{< /note >}}
<!--
The above example used `effect` of `NoSchedule`. Alternatively, you can use `effect` of `PreferNoSchedule`.
The above example used the `effect` of `NoSchedule`. Alternatively, you can use the `effect` of `PreferNoSchedule`.
-->
上述例子中 `effect` 使用的值为 `NoSchedule`,你也可以使用另外一个值 `PreferNoSchedule`
@ -389,7 +389,7 @@ are true. The following taints are built in:
* `node.kubernetes.io/network-unavailable`: Node's network is unavailable.
* `node.kubernetes.io/unschedulable`: Node is unschedulable.
* `node.cloudprovider.kubernetes.io/uninitialized`: When the kubelet is started
with "external" cloud provider, this taint is set on a node to mark it
with an "external" cloud provider, this taint is set on a node to mark it
as unusable. After a controller from the cloud-controller-manager initializes
this node, the kubelet removes this taint.
-->

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@ -496,7 +496,7 @@ can use a manifest similar to:
<!--
From that manifest, `topologyKey: zone` implies the even distribution will only be applied
to nodes that are labelled `zone: <any value>` (nodes that don't have a `zone` label
to nodes that are labeled `zone: <any value>` (nodes that don't have a `zone` label
are skipped). The field `whenUnsatisfiable: DoNotSchedule` tells the scheduler to let the
incoming Pod stay pending if the scheduler can't find a way to satisfy the constraint.
@ -780,7 +780,7 @@ There are some implicit conventions worth noting here:
above example, if you remove the incoming Pod's labels, it can still be placed onto
nodes in zone `B`, since the constraints are still satisfied. However, after that
placement, the degree of imbalance of the cluster remains unchanged - it's still zone `A`
having 2 Pods labelled as `foo: bar`, and zone `B` having 1 Pod labelled as
having 2 Pods labeled as `foo: bar`, and zone `B` having 1 Pod labeled as
`foo: bar`. If this is not what you expect, update the workload's
`topologySpreadConstraints[*].labelSelector` to match the labels in the pod template.
-->
@ -981,7 +981,7 @@ section of the enhancement proposal about Pod topology spread constraints.
because, in this case, those topology domains won't be considered until there is
at least one node in them.
You can work around this by using an cluster autoscaling tool that is aware of
You can work around this by using a cluster autoscaling tool that is aware of
Pod topology spread constraints and is also aware of the overall set of topology
domains.
-->