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autoscaler
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Merge pull request #7954 from abdelrahman882/FixScaledownCoolDown 

Fix cool down status condition to trigger scale down
This commit is contained in:
Kubernetes Prow Robot 2025-03-24 07:38:33 -07:00 committed by GitHub
parent f90590b90f 2bbe859154
commit 52cd68a498
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GPG Key ID: B5690EEEBB952194
1 changed files with 17 additions and 15 deletions
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32
cluster-autoscaler/core/static_autoscaler.go
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@ -627,6 +627,7 @@ func (a *StaticAutoscaler) RunOnce(currentTime time.Time) caerrors.AutoscalerErr
if scaleDownInCooldown {
scaleDownStatus.Result = scaledownstatus.ScaleDownInCooldown
a.updateSoftDeletionTaints(allNodes)
} else {
klog.V(4).Infof("Starting scale down")
@ -645,21 +646,7 @@ func (a *StaticAutoscaler) RunOnce(currentTime time.Time) caerrors.AutoscalerErr
a.lastScaleDownDeleteTime = currentTime
a.clusterStateRegistry.Recalculate()
}
if scaleDownStatus.Result == scaledownstatus.ScaleDownNoNodeDeleted &&
a.AutoscalingContext.AutoscalingOptions.MaxBulkSoftTaintCount != 0 {
taintableNodes := a.scaleDownPlanner.UnneededNodes()
// Make sure we are only cleaning taints from selected node groups.
selectedNodes := filterNodesFromSelectedGroups(a.CloudProvider, allNodes...)
// This is a sanity check to make sure `taintableNodes` only includes
// nodes from selected nodes.
taintableNodes = intersectNodes(selectedNodes, taintableNodes)
untaintableNodes := subtractNodes(selectedNodes, taintableNodes)
actuation.UpdateSoftDeletionTaints(a.AutoscalingContext, taintableNodes, untaintableNodes)
}
a.updateSoftDeletionTaints(allNodes)
if typedErr != nil {
klog.Errorf("Failed to scale down: %v", typedErr)
a.lastScaleDownFailTime = currentTime
@ -679,6 +666,21 @@ func (a *StaticAutoscaler) RunOnce(currentTime time.Time) caerrors.AutoscalerErr
return nil
}
func (a *StaticAutoscaler) updateSoftDeletionTaints(allNodes []*apiv1.Node) {
if a.AutoscalingContext.AutoscalingOptions.MaxBulkSoftTaintCount != 0 {
taintableNodes := a.scaleDownPlanner.UnneededNodes()
// Make sure we are only cleaning taints from selected node groups.
selectedNodes := filterNodesFromSelectedGroups(a.CloudProvider, allNodes...)
// This is a sanity check to make sure `taintableNodes` only includes
// nodes from selected nodes.
taintableNodes = intersectNodes(selectedNodes, taintableNodes)
untaintableNodes := subtractNodes(selectedNodes, taintableNodes)
actuation.UpdateSoftDeletionTaints(a.AutoscalingContext, taintableNodes, untaintableNodes)
}
}
func (a *StaticAutoscaler) addUpcomingNodesToClusterSnapshot(upcomingCounts map[string]int, nodeInfosForGroups map[string]*framework.NodeInfo) error {
nodeGroups := a.nodeGroupsById()
upcomingNodeGroups := make(map[string]int)