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Issue #17556 (#17557)

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Issue #17556

Problem:

Below Lines are incorrect

If you specify multiple nodeSelectorTerms associated with nodeAffinity types, then the pod can be scheduled onto a node if one of the nodeSelectorTerms is satisfied.

If you specify multiple matchExpressions associated with nodeSelectorTerms, then the pod can be scheduled onto a node only if all matchExpressions can be satisfied.

Proposed Solution:

They need to be corrected to below

If you specify multiple nodeSelectorTerms associated with nodeAffinity types, then the pod can be scheduled onto a node only if all nodeSelectorTerms can be satisfied.

If you specify multiple matchExpressions associated with nodeSelectorTerms, then the pod can be scheduled onto a node if one of the matchExpressions is satisfied.
This commit is contained in:
Sagar Velankar
2020-03-16 11:10:35 +05:30
committed by GitHub
parent d341eee62e
commit f29221f4c4
1 changed files with 2 additions and 2 deletions
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content/en/docs/concepts/configuration/assign-pod-node.md
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@@ -160,9 +160,9 @@ You can use `NotIn` and `DoesNotExist` to achieve node anti-affinity behavior, o
If you specify both `nodeSelector` and `nodeAffinity`, *both* must be satisfied for the pod
to be scheduled onto a candidate node.
If you specify multiple `nodeSelectorTerms` associated with `nodeAffinity` types, then the pod can be scheduled onto a node **if one of** the `nodeSelectorTerms` is satisfied.
If you specify multiple `nodeSelectorTerms` associated with `nodeAffinity` types, then the pod can be scheduled onto a node **only if all** `nodeSelectorTerms` can be satisfied.
If you specify multiple `matchExpressions` associated with `nodeSelectorTerms`, then the pod can be scheduled onto a node **only if all** `matchExpressions` can be satisfied.
If you specify multiple `matchExpressions` associated with `nodeSelectorTerms`, then the pod can be scheduled onto a node **if one of** the `matchExpressions` is satisfied.
If you remove or change the label of the node where the pod is scheduled, the pod won't be removed. In other words, the affinity selection works only at the time of scheduling the pod.