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Merge pull request #86999 from draveness/feature/remove-ErrTopologySpreadConstraintsNotMatch

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fix: remove ErrTopologySpreadConstraintsNotMatch
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Kubernetes Prow Robot 2020-01-09 13:29:42 -08:00 committed by GitHub
commit aef336d712
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5 changed files with 12 additions and 13 deletions
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2
pkg/scheduler/algorithm/predicates/error.go
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@ -51,8 +51,6 @@ var (
ErrNodeUnschedulable = NewPredicateFailureError("NodeUnschedulable", "node(s) were unschedulable")
// ErrNodeUnknownCondition is used for NodeUnknownCondition predicate error.
ErrNodeUnknownCondition = NewPredicateFailureError("NodeUnknownCondition", "node(s) had unknown conditions")
// ErrTopologySpreadConstraintsNotMatch is used for EvenPodsSpread predicate error.
ErrTopologySpreadConstraintsNotMatch = NewPredicateFailureError("EvenPodsSpreadNotMatch", "node(s) didn't match pod topology spread constraints")
// ErrFakePredicate is used for test only. The fake predicates returning false also returns error
// as ErrFakePredicate.
ErrFakePredicate = NewPredicateFailureError("FakePredicateError", "Nodes failed the fake predicate")

10
pkg/scheduler/core/generic_scheduler_test.go
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@ -1954,9 +1954,9 @@ func TestNodesWherePreemptionMightHelp(t *testing.T) {
{
name: "ErrTopologySpreadConstraintsNotMatch should be tried as it indicates that the pod is unschedulable due to topology spread constraints",
nodesStatuses: framework.NodeToStatusMap{
"machine1": framework.NewStatus(framework.Unschedulable, algorithmpredicates.ErrTopologySpreadConstraintsNotMatch.GetReason()),
"machine1": framework.NewStatus(framework.Unschedulable, podtopologyspread.ErrReasonConstraintsNotMatch),
"machine2": framework.NewStatus(framework.UnschedulableAndUnresolvable, algorithmpredicates.ErrPodNotMatchHostName.GetReason()),
"machine3": framework.NewStatus(framework.Unschedulable, algorithmpredicates.ErrTopologySpreadConstraintsNotMatch.GetReason()),
"machine3": framework.NewStatus(framework.Unschedulable, podtopologyspread.ErrReasonConstraintsNotMatch),
},
expected: map[string]bool{"machine1": true, "machine3": true, "machine4": true},
},
@ -2123,9 +2123,9 @@ func TestPreempt(t *testing.T) {
},
},
failedNodeToStatusMap: framework.NodeToStatusMap{
"node-a": framework.NewStatus(framework.Unschedulable, algorithmpredicates.ErrTopologySpreadConstraintsNotMatch.GetReason()),
"node-b": framework.NewStatus(framework.Unschedulable, algorithmpredicates.ErrTopologySpreadConstraintsNotMatch.GetReason()),
"node-x": framework.NewStatus(framework.Unschedulable, algorithmpredicates.ErrTopologySpreadConstraintsNotMatch.GetReason()),
"node-a": framework.NewStatus(framework.Unschedulable, podtopologyspread.ErrReasonConstraintsNotMatch),
"node-b": framework.NewStatus(framework.Unschedulable, podtopologyspread.ErrReasonConstraintsNotMatch),
"node-x": framework.NewStatus(framework.Unschedulable, podtopologyspread.ErrReasonConstraintsNotMatch),
},
nodeNames: []string{"node-a/zone1", "node-b/zone1", "node-x/zone2"},
registerPlugin: st.RegisterPluginAsExtensions(

2
pkg/scheduler/framework/plugins/podtopologyspread/BUILD
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@ -11,9 +11,7 @@ go_library(
importpath = "k8s.io/kubernetes/pkg/scheduler/framework/plugins/podtopologyspread",
visibility = ["//visibility:public"],
deps = [
"//pkg/scheduler/algorithm/predicates:go_default_library",
"//pkg/scheduler/framework/plugins/helper:go_default_library",
"//pkg/scheduler/framework/plugins/migration:go_default_library",
"//pkg/scheduler/framework/v1alpha1:go_default_library",
"//pkg/scheduler/listers:go_default_library",
"//pkg/scheduler/nodeinfo:go_default_library",

6
pkg/scheduler/framework/plugins/podtopologyspread/filtering.go
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@ -26,9 +26,7 @@ import (
"k8s.io/apimachinery/pkg/labels"
"k8s.io/client-go/util/workqueue"
"k8s.io/klog"
"k8s.io/kubernetes/pkg/scheduler/algorithm/predicates"
pluginhelper "k8s.io/kubernetes/pkg/scheduler/framework/plugins/helper"
"k8s.io/kubernetes/pkg/scheduler/framework/plugins/migration"
framework "k8s.io/kubernetes/pkg/scheduler/framework/v1alpha1"
"k8s.io/kubernetes/pkg/scheduler/nodeinfo"
schedulernodeinfo "k8s.io/kubernetes/pkg/scheduler/nodeinfo"
@ -310,7 +308,7 @@ func (pl *PodTopologySpread) Filter(ctx context.Context, cycleState *framework.C
tpVal, ok := node.Labels[c.topologyKey]
if !ok {
klog.V(5).Infof("node '%s' doesn't have required label '%s'", node.Name, tpKey)
return migration.PredicateResultToFrameworkStatus([]predicates.PredicateFailureReason{predicates.ErrTopologySpreadConstraintsNotMatch}, nil)
return framework.NewStatus(framework.Unschedulable, ErrReasonConstraintsNotMatch)
}
selfMatchNum := int32(0)
@ -332,7 +330,7 @@ func (pl *PodTopologySpread) Filter(ctx context.Context, cycleState *framework.C
skew := matchNum + selfMatchNum - minMatchNum
if skew > c.maxSkew {
klog.V(5).Infof("node '%s' failed spreadConstraint[%s]: matchNum(%d) + selfMatchNum(%d) - minMatchNum(%d) > maxSkew(%d)", node.Name, tpKey, matchNum, selfMatchNum, minMatchNum, c.maxSkew)
return migration.PredicateResultToFrameworkStatus([]predicates.PredicateFailureReason{predicates.ErrTopologySpreadConstraintsNotMatch}, nil)
return framework.NewStatus(framework.Unschedulable, ErrReasonConstraintsNotMatch)
}
}

5
pkg/scheduler/framework/plugins/podtopologyspread/plugin.go
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@ -24,6 +24,11 @@ import (
schedulerlisters "k8s.io/kubernetes/pkg/scheduler/listers"
)
const (
// ErrReasonConstraintsNotMatch is used for PodTopologySpread filter error.
ErrReasonConstraintsNotMatch = "node(s) didn't match pod topology spread constraints"
)
// PodTopologySpread is a plugin that ensures pod's topologySpreadConstraints is satisfied.
type PodTopologySpread struct {
sharedLister schedulerlisters.SharedLister