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Merge pull request #68831 from jbartosik/fix-first-hpa-recommendation

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Fix first hpa recommendation
This commit is contained in:
k8s-ci-robot 2018-09-19 09:48:00 -07:00 committed by GitHub
commit 3690f8fc54
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3 changed files with 59 additions and 4 deletions
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7
pkg/controller/podautoscaler/horizontal.go
View File

@ -464,6 +464,12 @@ func (a *HorizontalController) computeStatusForExternalMetric(currentReplicas in
return 0, time.Time{}, "", fmt.Errorf(errMsg)
}
func (a *HorizontalController) recordInitialRecommendation(currentReplicas int32, key string) {
if a.recommendations[key] == nil {
a.recommendations[key] = []timestampedRecommendation{{currentReplicas, time.Now()}}
}
}
func (a *HorizontalController) reconcileAutoscaler(hpav1Shared *autoscalingv1.HorizontalPodAutoscaler, key string) error {
// make a copy so that we never mutate the shared informer cache (conversion can mutate the object)
hpav1 := hpav1Shared.DeepCopy()
@ -508,6 +514,7 @@ func (a *HorizontalController) reconcileAutoscaler(hpav1Shared *autoscalingv1.Ho
}
setCondition(hpa, autoscalingv2.AbleToScale, v1.ConditionTrue, "SucceededGetScale", "the HPA controller was able to get the target's current scale")
currentReplicas := scale.Status.Replicas
a.recordInitialRecommendation(currentReplicas, key)
var metricStatuses []autoscalingv2.MetricStatus
metricDesiredReplicas := int32(0)

46
pkg/controller/podautoscaler/horizontal_test.go
View File

@ -1112,6 +1112,32 @@ func TestScaleDown(t *testing.T) {
reportedLevels: []uint64{100, 300, 500, 250, 250},
reportedCPURequests: []resource.Quantity{resource.MustParse("1.0"), resource.MustParse("1.0"), resource.MustParse("1.0"), resource.MustParse("1.0"), resource.MustParse("1.0")},
useMetricsAPI: true,
recommendations: []timestampedRecommendation{},
}
tc.runTest(t)
}
func TestScaleDownStabilizeInitialSize(t *testing.T) {
tc := testCase{
minReplicas: 2,
maxReplicas: 6,
initialReplicas: 5,
expectedDesiredReplicas: 5,
CPUTarget: 50,
verifyCPUCurrent: true,
reportedLevels: []uint64{100, 300, 500, 250, 250},
reportedCPURequests: []resource.Quantity{resource.MustParse("1.0"), resource.MustParse("1.0"), resource.MustParse("1.0"), resource.MustParse("1.0"), resource.MustParse("1.0")},
useMetricsAPI: true,
recommendations: nil,
expectedConditions: statusOkWithOverrides(autoscalingv2.HorizontalPodAutoscalerCondition{
Type: autoscalingv2.AbleToScale,
Status: v1.ConditionTrue,
Reason: "ReadyForNewScale",
}, autoscalingv2.HorizontalPodAutoscalerCondition{
Type: autoscalingv2.AbleToScale,
Status: v1.ConditionTrue,
Reason: "ScaleDownStabilized",
}),
}
tc.runTest(t)
}
@ -1139,6 +1165,7 @@ func TestScaleDownCM(t *testing.T) {
},
reportedLevels: []uint64{12000, 12000, 12000, 12000, 12000},
reportedCPURequests: []resource.Quantity{resource.MustParse("1.0"), resource.MustParse("1.0"), resource.MustParse("1.0"), resource.MustParse("1.0"), resource.MustParse("1.0")},
recommendations: []timestampedRecommendation{},
}
tc.runTest(t)
}
@ -1171,6 +1198,7 @@ func TestScaleDownCMObject(t *testing.T) {
},
reportedLevels: []uint64{12000},
reportedCPURequests: []resource.Quantity{resource.MustParse("1.0"), resource.MustParse("1.0"), resource.MustParse("1.0"), resource.MustParse("1.0"), resource.MustParse("1.0")},
recommendations: []timestampedRecommendation{},
}
tc.runTest(t)
}
@ -1195,7 +1223,8 @@ func TestScaleDownCMExternal(t *testing.T) {
},
},
},
reportedLevels: []uint64{8600},
reportedLevels: []uint64{8600},
recommendations: []timestampedRecommendation{},
}
tc.runTest(t)
}
@ -1220,7 +1249,8 @@ func TestScaleDownPerPodCMExternal(t *testing.T) {
},
},
},
reportedLevels: []uint64{8600},
reportedLevels: []uint64{8600},
recommendations: []timestampedRecommendation{},
}
tc.runTest(t)
}
@ -1238,6 +1268,7 @@ func TestScaleDownIncludeUnreadyPods(t *testing.T) {
reportedCPURequests: []resource.Quantity{resource.MustParse("1.0"), resource.MustParse("1.0"), resource.MustParse("1.0"), resource.MustParse("1.0"), resource.MustParse("1.0")},
useMetricsAPI: true,
reportedPodReadiness: []v1.ConditionStatus{v1.ConditionTrue, v1.ConditionTrue, v1.ConditionTrue, v1.ConditionFalse, v1.ConditionFalse},
recommendations: []timestampedRecommendation{},
}
tc.runTest(t)
}
@ -1255,6 +1286,7 @@ func TestScaleDownIgnoreHotCpuPods(t *testing.T) {
reportedCPURequests: []resource.Quantity{resource.MustParse("1.0"), resource.MustParse("1.0"), resource.MustParse("1.0"), resource.MustParse("1.0"), resource.MustParse("1.0")},
useMetricsAPI: true,
reportedPodStartTime: []metav1.Time{coolCpuCreationTime(), coolCpuCreationTime(), coolCpuCreationTime(), hotCpuCreationTime(), hotCpuCreationTime()},
recommendations: []timestampedRecommendation{},
}
tc.runTest(t)
}
@ -1273,6 +1305,7 @@ func TestScaleDownIgnoresFailedPods(t *testing.T) {
useMetricsAPI: true,
reportedPodReadiness: []v1.ConditionStatus{v1.ConditionTrue, v1.ConditionTrue, v1.ConditionTrue, v1.ConditionTrue, v1.ConditionTrue, v1.ConditionFalse, v1.ConditionFalse},
reportedPodPhase: []v1.PodPhase{v1.PodRunning, v1.PodRunning, v1.PodRunning, v1.PodRunning, v1.PodRunning, v1.PodFailed, v1.PodFailed},
recommendations: []timestampedRecommendation{},
}
tc.runTest(t)
}
@ -1292,6 +1325,7 @@ func TestScaleDownIgnoresDeletionPods(t *testing.T) {
reportedPodReadiness: []v1.ConditionStatus{v1.ConditionTrue, v1.ConditionTrue, v1.ConditionTrue, v1.ConditionTrue, v1.ConditionTrue, v1.ConditionFalse, v1.ConditionFalse},
reportedPodPhase: []v1.PodPhase{v1.PodRunning, v1.PodRunning, v1.PodRunning, v1.PodRunning, v1.PodRunning, v1.PodRunning, v1.PodRunning},
reportedPodDeletionTimestamp: []bool{false, false, false, false, false, true, true},
recommendations: []timestampedRecommendation{},
}
tc.runTest(t)
}
@ -1457,6 +1491,7 @@ func TestMinReplicas(t *testing.T) {
Status: v1.ConditionTrue,
Reason: "TooFewReplicas",
}),
recommendations: []timestampedRecommendation{},
}
tc.runTest(t)
}
@ -1476,6 +1511,7 @@ func TestMinReplicasDesiredZero(t *testing.T) {
Status: v1.ConditionTrue,
Reason: "TooFewReplicas",
}),
recommendations: []timestampedRecommendation{},
}
tc.runTest(t)
}
@ -1580,6 +1616,7 @@ func TestMissingMetrics(t *testing.T) {
reportedLevels: []uint64{400, 95},
reportedCPURequests: []resource.Quantity{resource.MustParse("1.0"), resource.MustParse("1.0"), resource.MustParse("1.0"), resource.MustParse("1.0")},
useMetricsAPI: true,
recommendations: []timestampedRecommendation{},
}
tc.runTest(t)
}
@ -1665,6 +1702,7 @@ func TestMissingReports(t *testing.T) {
reportedLevels: []uint64{200},
reportedCPURequests: []resource.Quantity{resource.MustParse("0.2")},
useMetricsAPI: true,
recommendations: []timestampedRecommendation{},
}
tc.runTest(t)
}
@ -2168,7 +2206,8 @@ func TestComputedToleranceAlgImplementation(t *testing.T) {
resource.MustParse(fmt.Sprint(perPodRequested) + "m"),
resource.MustParse(fmt.Sprint(perPodRequested) + "m"),
},
useMetricsAPI: true,
useMetricsAPI: true,
recommendations: []timestampedRecommendation{},
}
tc.runTest(t)
@ -2241,6 +2280,7 @@ func TestAvoidUncessaryUpdates(t *testing.T) {
reportedPodStartTime: []metav1.Time{coolCpuCreationTime(), hotCpuCreationTime(), hotCpuCreationTime()},
useMetricsAPI: true,
lastScaleTime: &now,
recommendations: []timestampedRecommendation{},
}
testClient, _, _, _, _ := tc.prepareTestClient(t)
tc.testClient = testClient

10
pkg/controller/podautoscaler/legacy_horizontal_test.go
View File

@ -98,7 +98,8 @@ type legacyTestCase struct {
resource *fakeResource
// Last scale time
lastScaleTime *metav1.Time
lastScaleTime *metav1.Time
recommendations []timestampedRecommendation
}
// Needs to be called under a lock.
@ -504,6 +505,10 @@ func (tc *legacyTestCase) runTest(t *testing.T) {
)
hpaController.hpaListerSynced = alwaysReady
if tc.recommendations != nil {
hpaController.recommendations["test-namespace/test-hpa"] = tc.recommendations
}
stop := make(chan struct{})
defer close(stop)
informerFactory.Start(stop)
@ -689,6 +694,7 @@ func TestLegacyScaleDown(t *testing.T) {
reportedLevels: []uint64{100, 300, 500, 250, 250},
reportedCPURequests: []resource.Quantity{resource.MustParse("1.0"), resource.MustParse("1.0"), resource.MustParse("1.0"), resource.MustParse("1.0"), resource.MustParse("1.0")},
useMetricsAPI: true,
recommendations: []timestampedRecommendation{},
}
tc.runTest(t)
}
@ -711,6 +717,7 @@ func TestLegacyScaleDownCM(t *testing.T) {
},
reportedLevels: []uint64{12, 12, 12, 12, 12},
reportedCPURequests: []resource.Quantity{resource.MustParse("1.0"), resource.MustParse("1.0"), resource.MustParse("1.0"), resource.MustParse("1.0"), resource.MustParse("1.0")},
recommendations: []timestampedRecommendation{},
}
tc.runTest(t)
}
@ -728,6 +735,7 @@ func TestLegacyScaleDownIgnoresUnreadyPods(t *testing.T) {
reportedCPURequests: []resource.Quantity{resource.MustParse("1.0"), resource.MustParse("1.0"), resource.MustParse("1.0"), resource.MustParse("1.0"), resource.MustParse("1.0")},
useMetricsAPI: true,
reportedPodReadiness: []v1.ConditionStatus{v1.ConditionTrue, v1.ConditionTrue, v1.ConditionTrue, v1.ConditionFalse, v1.ConditionFalse},
recommendations: []timestampedRecommendation{},
}
tc.runTest(t)
}