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Add Preemption to Glossary page (#12460)

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* Add Preemption to Glossary page

* Change Delete -> Evict in preemption concept docs
This commit is contained in:
Damini Satya
2019-02-01 23:29:24 +05:30
committed by Kubernetes Prow Robot
parent fb2f3f89a9
commit 5512fe7d46
2 changed files with 18 additions and 1 deletions
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content/en/docs/concepts/configuration/pod-priority-preemption.md
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@@ -202,7 +202,7 @@ Node is found that satisfies all the specified requirements of the Pod,
preemption logic is triggered for the pending Pod. Let's call the pending Pod P.
Preemption logic tries to find a Node where removal of one or more Pods with
lower priority than P would enable P to be scheduled on that Node. If such a
Node is found, one or more lower priority Pods get deleted from the Node. After
Node is found, one or more lower priority Pods get evicted from the Node. After
the Pods are gone, P can be scheduled on the Node.
### User exposed information
content/en/docs/reference/glossary/Preemption.md
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@@ -0,0 +1,17 @@
---
title: Preemption
id: Preemption
date: 2019-01-31
full_link: https://kubernetes.io/docs/concepts/configuration/pod-priority-preemption/#preemption
short_description: >
Preemption logic in Kubernetes helps a pending Pod to find a suitable Node by evicting low priority Pods existing on that Node.
aka:
tags:
- operation
---
Preemption logic in Kubernetes helps a pending Pod to find a suitable Node by evicting low priority Pods existing on that Node.
<!--more-->
If a Pod cannot be scheduled, the scheduler tries to [preempt](https://kubernetes.io/docs/concepts/configuration/pod-priority-preemption/#preemption) lower priority Pods to make scheduling of the pending Pod possible.