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Merge pull request #52637 from stewart-yu/issue#06 

Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Modify Schedule function

**What this PR does / why we need it**:
It is obvious that no need to prioritizing when only one node after predicate.

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #

**Special notes for your reviewer**:
@davidopp @timothysc

**Release note**:

```release-note
NONE
```
pull/6/head
Kubernetes Submit Queue 2017-10-16 00:38:15 -07:00 committed by GitHub
parent 77b83e446b 5937184db7
commit 1ab5075c7c
1 changed files with 6 additions and 0 deletions
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6
plugin/pkg/scheduler/core/generic_scheduler.go
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@ -129,6 +129,12 @@ func (g *genericScheduler) Schedule(pod *v1.Pod, nodeLister algorithm.NodeLister
} }
trace.Step("Prioritizing") trace.Step("Prioritizing")
// When only one node after predicate, just use it.
if len(filteredNodes) == 1 {
return filteredNodes[0].Name, nil
}
metaPrioritiesInterface := g.priorityMetaProducer(pod, g.cachedNodeInfoMap) metaPrioritiesInterface := g.priorityMetaProducer(pod, g.cachedNodeInfoMap)
priorityList, err := PrioritizeNodes(pod, g.cachedNodeInfoMap, metaPrioritiesInterface, g.prioritizers, filteredNodes, g.extenders) priorityList, err := PrioritizeNodes(pod, g.cachedNodeInfoMap, metaPrioritiesInterface, g.prioritizers, filteredNodes, g.extenders)
if err != nil { if err != nil {