func TestSchedulerFailedSchedulingReasons(t *testing.T) {
stop := make(chan struct{})
defer close(stop)
queuedPodStore := clientcache.NewFIFO(clientcache.MetaNamespaceKeyFunc)
scache := schedulercache.New(10*time.Minute, stop)
node := api.Node{
ObjectMeta: api.ObjectMeta{Name: "machine1"},
Status: api.NodeStatus{
Capacity: api.ResourceList{
api.ResourceCPU: *(resource.NewQuantity(2, resource.DecimalSI)),
api.ResourceMemory: *(resource.NewQuantity(100, resource.DecimalSI)),
api.ResourcePods: *(resource.NewQuantity(10, resource.DecimalSI)),
},
Allocatable: api.ResourceList{
api.ResourceCPU: *(resource.NewQuantity(2, resource.DecimalSI)),
api.ResourceMemory: *(resource.NewQuantity(100, resource.DecimalSI)),
api.ResourcePods: *(resource.NewQuantity(10, resource.DecimalSI)),
}},
}
scache.AddNode(&node)
nodeLister := algorithm.FakeNodeLister([]*api.Node{&node})
predicateMap := map[string]algorithm.FitPredicate{
"PodFitsResources": predicates.PodFitsResources,
}
scheduler, _, errChan := setupTestScheduler(queuedPodStore, scache, nodeLister, predicateMap)
podWithTooBigResourceRequests := podWithResources("bar", "", api.ResourceList{
api.ResourceCPU: *(resource.NewQuantity(4, resource.DecimalSI)),
api.ResourceMemory: *(resource.NewQuantity(500, resource.DecimalSI)),
}, api.ResourceList{
api.ResourceCPU: *(resource.NewQuantity(4, resource.DecimalSI)),
api.ResourceMemory: *(resource.NewQuantity(500, resource.DecimalSI)),
})
queuedPodStore.Add(podWithTooBigResourceRequests)
scheduler.scheduleOne()
select {
case err := <-errChan:
expectErr := &FitError{
Pod: podWithTooBigResourceRequests,
FailedPredicates: FailedPredicateMap{node.Name: []algorithm.PredicateFailureReason{
predicates.NewInsufficientResourceError(api.ResourceCPU, 4000, 0, 2000),
predicates.NewInsufficientResourceError(api.ResourceMemory, 500, 0, 100),
}},
}
if !reflect.DeepEqual(expectErr, err) {
t.Errorf("err want=%+v, get=%+v", expectErr, err)
}
case <-time.After(wait.ForeverTestTimeout):
t.Fatalf("timeout after %v", wait.ForeverTestTimeout)
}
}
func TestSchedulerFailedSchedulingReasons(t *testing.T) {
stop := make(chan struct{})
defer close(stop)
queuedPodStore := clientcache.NewFIFO(clientcache.MetaNamespaceKeyFunc)
scache := schedulercache.New(10*time.Minute, stop)
// Design the baseline for the pods, and we will make nodes that dont fit it later.
var cpu = int64(4)
var mem = int64(500)
podWithTooBigResourceRequests := podWithResources("bar", "", api.ResourceList{
api.ResourceCPU: *(resource.NewQuantity(cpu, resource.DecimalSI)),
api.ResourceMemory: *(resource.NewQuantity(mem, resource.DecimalSI)),
}, api.ResourceList{
api.ResourceCPU: *(resource.NewQuantity(cpu, resource.DecimalSI)),
api.ResourceMemory: *(resource.NewQuantity(mem, resource.DecimalSI)),
})
// create several nodes which cannot schedule the above pod
nodes := []*api.Node{}
for i := 0; i < 100; i++ {
node := api.Node{
ObjectMeta: api.ObjectMeta{Name: fmt.Sprintf("machine%v", i)},
Status: api.NodeStatus{
Capacity: api.ResourceList{
api.ResourceCPU: *(resource.NewQuantity(cpu/2, resource.DecimalSI)),
api.ResourceMemory: *(resource.NewQuantity(mem/5, resource.DecimalSI)),
api.ResourcePods: *(resource.NewQuantity(10, resource.DecimalSI)),
},
Allocatable: api.ResourceList{
api.ResourceCPU: *(resource.NewQuantity(cpu/2, resource.DecimalSI)),
api.ResourceMemory: *(resource.NewQuantity(mem/5, resource.DecimalSI)),
api.ResourcePods: *(resource.NewQuantity(10, resource.DecimalSI)),
}},
}
scache.AddNode(&node)
nodes = append(nodes, &node)
}
nodeLister := algorithm.FakeNodeLister(nodes)
predicateMap := map[string]algorithm.FitPredicate{
"PodFitsResources": predicates.PodFitsResources,
}
// Create expected failure reasons for all the nodes. Hopefully they will get rolled up into a non-spammy summary.
failedPredicatesMap := FailedPredicateMap{}
for _, node := range nodes {
failedPredicatesMap[node.Name] = []algorithm.PredicateFailureReason{
predicates.NewInsufficientResourceError(api.ResourceCPU, 4000, 0, 2000),
predicates.NewInsufficientResourceError(api.ResourceMemory, 500, 0, 100),
}
}
scheduler, _, errChan := setupTestScheduler(queuedPodStore, scache, nodeLister, predicateMap)
queuedPodStore.Add(podWithTooBigResourceRequests)
scheduler.scheduleOne()
select {
case err := <-errChan:
expectErr := &FitError{
Pod: podWithTooBigResourceRequests,
FailedPredicates: failedPredicatesMap,
}
if len(fmt.Sprint(expectErr)) > 150 {
t.Errorf("message is too spammy ! %v ", len(fmt.Sprint(expectErr)))
}
if !reflect.DeepEqual(expectErr, err) {
t.Errorf("\n err \nWANT=%+v,\nGOT=%+v", expectErr, err)
}
case <-time.After(wait.ForeverTestTimeout):
t.Fatalf("timeout after %v", wait.ForeverTestTimeout)
}
}