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scheduler: a small refactor for generic scheduler

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This commit is contained in:
Xiang Li 2015-12-08 22:36:52 -08:00
parent da8b85e5c7
commit f3ced64a80
1 changed files with 9 additions and 5 deletions
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14
plugin/pkg/scheduler/generic_scheduler.go
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@ -63,6 +63,9 @@ type genericScheduler struct {
randomLock sync.Mutex
}
// Schedule tries to schedule the given pod to one of node in the node list.
// If it succeeds, it will return the name of the node.
// If it fails, it will return a Fiterror error with reasons.
func (g *genericScheduler) Schedule(pod *api.Pod, nodeLister algorithm.NodeLister) (string, error) {
nodes, err := nodeLister.List()
if err != nil {
@ -84,17 +87,18 @@ func (g *genericScheduler) Schedule(pod *api.Pod, nodeLister algorithm.NodeListe
return "", err
}
priorityList, err := PrioritizeNodes(pod, machinesToPods, g.pods, g.prioritizers, algorithm.FakeNodeLister(filteredNodes), g.extenders)
if err != nil {
return "", err
}
if len(priorityList) == 0 {
if len(filteredNodes.Items) == 0 {
return "", &FitError{
Pod: pod,
FailedPredicates: failedPredicateMap,
}
}
priorityList, err := PrioritizeNodes(pod, machinesToPods, g.pods, g.prioritizers, algorithm.FakeNodeLister(filteredNodes), g.extenders)
if err != nil {
return "", err
}
return g.selectHost(priorityList)
}