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Update assign-pod-node.md (#4356)

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* Update assign-pod-node.md

I am a freshman on Kubernetes development.When I use the affinity feature,it confuses me that why the pod won't stop after I changing  the node's label which makes the node no longer satisfy the  affinity condition.Although I learn  how this feature works by community, I hope the documentation can help  people especially fresh man better.^_^

* Update assign-pod-node.md after review

I have fixed the commit after review
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WanLinghao
2017-08-01 16:49:23 +08:00
committed by Andrew Chen
parent 7d77edd74a
commit 704e14a2d7
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docs/concepts/configuration/assign-pod-node.md
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@@ -139,6 +139,8 @@ If you specify multiple `nodeSelectorTerms` associated with `nodeAffinity` types
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 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.
For more information on node affinity, see the design doc
[here](https://git.k8s.io/community/contributors/design-proposals/nodeaffinity.md).