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Add logic to account for pods nominated to run on nodes, but are not running yet.

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Add tests for the new logic.
This commit is contained in:
Bobby (Babak) Salamat
2017-11-07 17:09:21 -08:00
parent 2cbb07a439
commit 8a17ae241d
12 changed files with 853 additions and 388 deletions
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5
plugin/pkg/scheduler/algorithm/scheduler_interface.go
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@@ -49,8 +49,9 @@ type ScheduleAlgorithm interface {
Schedule(*v1.Pod, NodeLister) (selectedMachine string, err error)
// Preempt receives scheduling errors for a pod and tries to create room for
// the pod by preempting lower priority pods if possible.
// It returns the node where preemption happened, a list of preempted pods, and error if any.
Preempt(*v1.Pod, NodeLister, error) (selectedNode *v1.Node, preemptedPods []*v1.Pod, err error)
// It returns the node where preemption happened, a list of preempted pods, a
// list of pods whose nominated node name should be removed, and error if any.
Preempt(*v1.Pod, NodeLister, error) (selectedNode *v1.Node, preemptedPods []*v1.Pod, cleanupNominatedPods []*v1.Pod, err error)
// Predicates() returns a pointer to a map of predicate functions. This is
// exposed for testing.
Predicates() map[string]FitPredicate