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Qiming Teng
2022-06-18 16:28:55 +08:00
parent 5a1c17a257
commit d705d9ed1c
9 changed files with 195 additions and 100 deletions
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content/en/docs/concepts/scheduling-eviction/taint-and-toleration.md
+8 -6
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@@ -15,14 +15,15 @@ is a property of {{< glossary_tooltip text="Pods" term_id="pod" >}} that *attrac
a set of {{< glossary_tooltip text="nodes" term_id="node" >}} (either as a preference or a
hard requirement). _Taints_ are the opposite -- they allow a node to repel a set of pods.
_Tolerations_ are applied to pods. Tolerations allow the scheduler to schedule pods with matching taints. Tolerations allow scheduling but don't guarantee scheduling: the scheduler also [evaluates other parameters](/docs/concepts/scheduling-eviction/pod-priority-preemption/) as part of its function.
_Tolerations_ are applied to pods. Tolerations allow the scheduler to schedule pods with matching
taints. Tolerations allow scheduling but don't guarantee scheduling: the scheduler also
[evaluates other parameters](/docs/concepts/scheduling-eviction/pod-priority-preemption/)
as part of its function.
Taints and tolerations work together to ensure that pods are not scheduled
onto inappropriate nodes. One or more taints are applied to a node; this
marks that the node should not accept any pods that do not tolerate the taints.
<!-- body -->
## Concepts
@@ -266,7 +267,8 @@ This ensures that DaemonSet pods are never evicted due to these problems.
## Taint Nodes by Condition
The control plane, using the node {{<glossary_tooltip text="controller" term_id="controller">}},
automatically creates taints with a `NoSchedule` effect for [node conditions](/docs/concepts/scheduling-eviction/node-pressure-eviction/#node-conditions).
automatically creates taints with a `NoSchedule` effect for
[node conditions](/docs/concepts/scheduling-eviction/node-pressure-eviction/#node-conditions).
The scheduler checks taints, not node conditions, when it makes scheduling
decisions. This ensures that node conditions don't directly affect scheduling.
@@ -297,7 +299,7 @@ arbitrary tolerations to DaemonSets.
## {{% heading "whatsnext" %}}
* Read about [Node-pressure Eviction](/docs/concepts/scheduling-eviction/node-pressure-eviction/) and how you can configure it
* Read about [Node-pressure Eviction](/docs/concepts/scheduling-eviction/node-pressure-eviction/)
and how you can configure it
* Read about [Pod Priority](/docs/concepts/scheduling-eviction/pod-priority-preemption/)