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feature(scheduler): implement ClusterEventWithHint to filter out useless events

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This commit is contained in:
Kensei Nakada
2023-06-08 04:54:30 +00:00
parent 7cd51541cd
commit 6f8d38406a
29 changed files with 1281 additions and 511 deletions
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10
pkg/scheduler/framework/plugins/volumerestrictions/volume_restrictions.go
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@@ -333,17 +333,17 @@ func (pl *VolumeRestrictions) Filter(ctx context.Context, cycleState *framework.
// EventsToRegister returns the possible events that may make a Pod
// failed by this plugin schedulable.
func (pl *VolumeRestrictions) EventsToRegister() []framework.ClusterEvent {
return []framework.ClusterEvent{
func (pl *VolumeRestrictions) EventsToRegister() []framework.ClusterEventWithHint {
return []framework.ClusterEventWithHint{
// Pods may fail to schedule because of volumes conflicting with other pods on same node.
// Once running pods are deleted and volumes have been released, the unschedulable pod will be schedulable.
// Due to immutable fields `spec.volumes`, pod update events are ignored.
{Resource: framework.Pod, ActionType: framework.Delete},
{Event: framework.ClusterEvent{Resource: framework.Pod, ActionType: framework.Delete}},
// A new Node may make a pod schedulable.
{Resource: framework.Node, ActionType: framework.Add},
{Event: framework.ClusterEvent{Resource: framework.Node, ActionType: framework.Add}},
// Pods may fail to schedule because the PVC it uses has not yet been created.
// This PVC is required to exist to check its access modes.
{Resource: framework.PersistentVolumeClaim, ActionType: framework.Add | framework.Update},
{Event: framework.ClusterEvent{Resource: framework.PersistentVolumeClaim, ActionType: framework.Add | framework.Update}},
}
}