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Fixed pod anti-affinity bugs.

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This commit is contained in:
Klaus Ma 2017-01-17 13:28:54 +08:00
parent 32e163c928
commit c184fef6e6
2 changed files with 84 additions and 7 deletions
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2
plugin/pkg/scheduler/algorithm/predicates/predicates.go
View File

@ -1033,7 +1033,7 @@ func getMatchingAntiAffinityTerms(pod *v1.Pod, nodeInfoMap map[string]*scheduler
func (c *PodAffinityChecker) getMatchingAntiAffinityTerms(pod *v1.Pod, allPods []*v1.Pod) ([]matchingPodAntiAffinityTerm, error) {
var result []matchingPodAntiAffinityTerm
for _, existingPod := range allPods {
affinity := pod.Spec.Affinity
affinity := existingPod.Spec.Affinity
if affinity != nil && affinity.PodAntiAffinity != nil {
existingPodNode, err := c.info.GetNodeInfo(existingPod.Spec.NodeName)
if err != nil {

89
plugin/pkg/scheduler/algorithm/predicates/predicates_test.go
View File

@ -2606,12 +2606,17 @@ func TestInterPodAffinityWithMultipleNodes(t *testing.T) {
labelRgIndia := map[string]string{
"region": "India",
}
labelRgUS := map[string]string{
"region": "US",
}
tests := []struct {
pod *v1.Pod
pods []*v1.Pod
nodes []v1.Node
fits map[string]bool
test string
pod *v1.Pod
pods []*v1.Pod
nodes []v1.Node
fits map[string]bool
test string
nometa bool
}{
{
pod: &v1.Pod{
@ -2817,6 +2822,71 @@ func TestInterPodAffinityWithMultipleNodes(t *testing.T) {
},
test: "NodeA and nodeB have same topologyKey and label value. NodeA has an existing pod that match the inter pod affinity rule. The pod can not be scheduled onto nodeA and nodeB but can be schedulerd onto nodeC",
},
{
pod: &v1.Pod{
ObjectMeta: v1.ObjectMeta{Labels: map[string]string{"foo": "123"}},
Spec: v1.PodSpec{
Affinity: &v1.Affinity{
PodAntiAffinity: &v1.PodAntiAffinity{
RequiredDuringSchedulingIgnoredDuringExecution: []v1.PodAffinityTerm{
{
LabelSelector: &metav1.LabelSelector{
MatchExpressions: []metav1.LabelSelectorRequirement{
{
Key: "foo",
Operator: metav1.LabelSelectorOpIn,
Values: []string{"bar"},
},
},
},
TopologyKey: "region",
},
},
},
},
},
},
pods: []*v1.Pod{
{Spec: v1.PodSpec{NodeName: "nodeA"}, ObjectMeta: v1.ObjectMeta{Labels: map[string]string{"foo": "bar"}}},
{
Spec: v1.PodSpec{
NodeName: "nodeC",
Affinity: &v1.Affinity{
PodAntiAffinity: &v1.PodAntiAffinity{
RequiredDuringSchedulingIgnoredDuringExecution: []v1.PodAffinityTerm{
{
LabelSelector: &metav1.LabelSelector{
MatchExpressions: []metav1.LabelSelectorRequirement{
{
Key: "foo",
Operator: metav1.LabelSelectorOpIn,
Values: []string{"123"},
},
},
},
TopologyKey: "region",
},
},
},
},
},
},
},
nodes: []v1.Node{
{ObjectMeta: v1.ObjectMeta{Name: "nodeA", Labels: labelRgChina}},
{ObjectMeta: v1.ObjectMeta{Name: "nodeB", Labels: labelRgChinaAzAz1}},
{ObjectMeta: v1.ObjectMeta{Name: "nodeC", Labels: labelRgIndia}},
{ObjectMeta: v1.ObjectMeta{Name: "nodeD", Labels: labelRgUS}},
},
fits: map[string]bool{
"nodeA": false,
"nodeB": false,
"nodeC": false,
"nodeD": true,
},
test: "NodeA and nodeB have same topologyKey and label value. NodeA has an existing pod that match the inter pod affinity rule. NodeC has an existing pod that match the inter pod affinity rule. The pod can not be scheduled onto nodeA, nodeB and nodeC but can be schedulerd onto nodeD",
nometa: true,
},
}
affinityExpectedFailureReasons := []algorithm.PredicateFailureReason{ErrPodAffinityNotMatch}
selectorExpectedFailureReasons := []algorithm.PredicateFailureReason{ErrNodeSelectorNotMatch}
@ -2839,7 +2909,14 @@ func TestInterPodAffinityWithMultipleNodes(t *testing.T) {
nodeInfo := schedulercache.NewNodeInfo(podsOnNode...)
nodeInfo.SetNode(&node)
nodeInfoMap := map[string]*schedulercache.NodeInfo{node.Name: nodeInfo}
fits, reasons, err := testFit.InterPodAffinityMatches(test.pod, PredicateMetadata(test.pod, nodeInfoMap), nodeInfo)
var meta interface{} = nil
if !test.nometa {
meta = PredicateMetadata(test.pod, nodeInfoMap)
}
fits, reasons, err := testFit.InterPodAffinityMatches(test.pod, meta, nodeInfo)
if err != nil {
t.Errorf("%s: unexpected error %v", test.test, err)
}