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Merge pull request #5696 from kisieland/orchestrator-update-expansion-build 

Extract 'SchedulablePods' method in orchestrator.
This commit is contained in:
Kubernetes Prow Robot 2023-04-26 12:48:14 -07:00 committed by GitHub
parent 12b1dbd751 7fecbcf28e
commit fe10c53f9a
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1 changed files with 27 additions and 25 deletions
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52
cluster-autoscaler/core/scaleup/orchestrator/orchestrator.go
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@ -156,11 +156,7 @@ func (o *ScaleUpOrchestrator) ScaleUp(
continue
}
option, err := o.ComputeExpansionOption(podEquivalenceGroups, nodeGroup, nodeInfo, upcomingNodes)
if err != nil {
return scaleUpError(&status.ScaleUpStatus{}, errors.ToAutoscalerError(errors.InternalError, err))
}
option := o.ComputeExpansionOption(podEquivalenceGroups, nodeGroup, nodeInfo, upcomingNodes)
if len(option.Pods) > 0 && option.NodeCount > 0 {
expansionOptions[nodeGroup.Id()] = option
} else {
@ -236,11 +232,7 @@ func (o *ScaleUpOrchestrator) ScaleUp(
}
nodeInfos[nodeGroup.Id()] = nodeInfo
option, err := o.ComputeExpansionOption(podEquivalenceGroups, nodeGroup, nodeInfo, upcomingNodes)
if err != nil {
return scaleUpError(&status.ScaleUpStatus{PodsTriggeredScaleUp: bestOption.Pods}, errors.ToAutoscalerError(errors.InternalError, err))
}
option := o.ComputeExpansionOption(podEquivalenceGroups, nodeGroup, nodeInfo, upcomingNodes)
if len(option.Pods) > 0 && option.NodeCount > 0 {
expansionOptions[nodeGroup.Id()] = option
}
@ -436,30 +428,47 @@ func (o *ScaleUpOrchestrator) ComputeExpansionOption(
nodeGroup cloudprovider.NodeGroup,
nodeInfo *schedulerframework.NodeInfo,
upcomingNodes []*schedulerframework.NodeInfo,
) (expander.Option, error) {
) expander.Option {
option := expander.Option{
NodeGroup: nodeGroup,
Pods: make([]*apiv1.Pod, 0),
}
option.Pods = o.SchedulablePods(podEquivalenceGroups, nodeGroup, nodeInfo)
if len(option.Pods) > 0 {
estimator := o.autoscalingContext.EstimatorBuilder(o.autoscalingContext.PredicateChecker, o.autoscalingContext.ClusterSnapshot)
option.NodeCount, option.Pods = estimator.Estimate(option.Pods, nodeInfo, option.NodeGroup)
}
return option
}
// SchedulablePods returns a list of pods that could be scheduled
// in a given node group after a scale up.
func (o *ScaleUpOrchestrator) SchedulablePods(
podEquivalenceGroups []*equivalence.PodGroup,
nodeGroup cloudprovider.NodeGroup,
nodeInfo *schedulerframework.NodeInfo,
) []*apiv1.Pod {
o.autoscalingContext.ClusterSnapshot.Fork()
defer o.autoscalingContext.ClusterSnapshot.Revert()
// Add test node to snapshot.
var pods []*apiv1.Pod
var allPods []*apiv1.Pod
for _, podInfo := range nodeInfo.Pods {
pods = append(pods, podInfo.Pod)
allPods = append(allPods, podInfo.Pod)
}
if err := o.autoscalingContext.ClusterSnapshot.AddNodeWithPods(nodeInfo.Node(), pods); err != nil {
if err := o.autoscalingContext.ClusterSnapshot.AddNodeWithPods(nodeInfo.Node(), allPods); err != nil {
klog.Errorf("Error while adding test Node: %v", err)
o.autoscalingContext.ClusterSnapshot.Revert()
return expander.Option{}, nil
return []*apiv1.Pod{}
}
var schedulablePods []*apiv1.Pod
for _, eg := range podEquivalenceGroups {
samplePod := eg.Pods[0]
if err := o.autoscalingContext.PredicateChecker.CheckPredicates(o.autoscalingContext.ClusterSnapshot, samplePod, nodeInfo.Node().Name); err == nil {
// Add pods to option.
option.Pods = append(option.Pods, eg.Pods...)
schedulablePods = append(schedulablePods, eg.Pods...)
// Mark pod group as (theoretically) schedulable.
eg.Schedulable = true
} else {
@ -471,14 +480,7 @@ func (o *ScaleUpOrchestrator) ComputeExpansionOption(
}
}
o.autoscalingContext.ClusterSnapshot.Revert()
if len(option.Pods) > 0 {
estimator := o.autoscalingContext.EstimatorBuilder(o.autoscalingContext.PredicateChecker, o.autoscalingContext.ClusterSnapshot)
option.NodeCount, option.Pods = estimator.Estimate(option.Pods, nodeInfo, option.NodeGroup)
}
return option, nil
return schedulablePods
}
// UpcomingNodes returns a list of nodes that are not ready but should be.