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Merge pull request #37513 from xiaolou86/podAffinity

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Automatic merge from submit-queue

Optimize pod affinity when predicate

Optimize by returning as early as possible to avoid invoking priorityutil.PodMatchesTermsNamespaceAndSelector.
This commit is contained in:
Kubernetes Submit Queue 2016-12-27 06:46:54 -08:00 committed by GitHub
commit 7b134995e5
1 changed files with 6 additions and 1 deletions
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7
plugin/pkg/scheduler/algorithm/predicates/predicates.go
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@ -1116,6 +1116,11 @@ func (c *PodAffinityChecker) satisfiesPodsAffinityAntiAffinity(pod *v1.Pod, node
// If the requirement matches a pod's own labels are namespace, and there are
// no other such pods, then disregard the requirement. This is necessary to
// not block forever because the first pod of the collection can't be scheduled.
if matchingPodExists {
glog.V(10).Infof("Cannot schedule pod %+v onto node %v,because of PodAffinityTerm %v, err: %v",
podName(pod), node.Name, term, err)
return false
}
namespaces := priorityutil.GetNamespacesFromPodAffinityTerm(pod, &term)
selector, err := metav1.LabelSelectorAsSelector(term.LabelSelector)
if err != nil {
@ -1124,7 +1129,7 @@ func (c *PodAffinityChecker) satisfiesPodsAffinityAntiAffinity(pod *v1.Pod, node
return false
}
match := priorityutil.PodMatchesTermsNamespaceAndSelector(pod, namespaces, selector)
if !match || matchingPodExists {
if !match {
glog.V(10).Infof("Cannot schedule pod %+v onto node %v,because of PodAffinityTerm %v, err: %v",
podName(pod), node.Name, term, err)
return false