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Merge pull request #28434 from mehabhalodiya/fix-28324

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Add tooltip for affinity
This commit is contained in:
Kubernetes Prow Robot
2021-06-18 23:16:51 -07:00
committed by GitHub
parent ba20879546 53da9dfa2a
commit 391459b11f
2 changed files with 28 additions and 6 deletions
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content/en/docs/concepts/scheduling-eviction/pod-priority-preemption.md
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@@ -252,12 +252,12 @@ Even so, the answer to the preceding question must be yes. If the answer is no,
the Node is not considered for preemption.
{{< /note >}}
If a pending Pod has inter-pod affinity to one or more of the lower-priority
Pods on the Node, the inter-Pod affinity rule cannot be satisfied in the absence
of those lower-priority Pods. In this case, the scheduler does not preempt any
Pods on the Node. Instead, it looks for another Node. The scheduler might find a
suitable Node or it might not. There is no guarantee that the pending Pod can be
scheduled.
If a pending Pod has inter-pod {{< glossary_tooltip text="affinity" term_id="affinity" >}}
to one or more of the lower-priority Pods on the Node, the inter-Pod affinity
rule cannot be satisfied in the absence of those lower-priority Pods. In this case,
the scheduler does not preempt any Pods on the Node. Instead, it looks for another
Node. The scheduler might find a suitable Node or it might not. There is no
guarantee that the pending Pod can be scheduled.
Our recommended solution for this problem is to create inter-Pod affinity only
towards equal or higher priority Pods.