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Ensure deletion of pods in queues and cache

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When the client misses a delete event from the watcher, it will use the last state of the pod in the informer cache to produce a delete event. At that point, it's not clear if the pod was in the queues or the cache, so we should issue a deletion in both.

The pod could be assumed, so deletion of assumed pods from the cache should work.

Change-Id: I11ce9785de603924fc121fe2fa6ed5cb1e16922f
This commit is contained in:
Aldo Culquicondor
2021-11-02 15:40:34 -04:00
parent f08ad3e0ed
commit ff741f6a96
3 changed files with 57 additions and 51 deletions
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81
pkg/scheduler/internal/cache/cache_test.go vendored
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@@ -807,57 +807,62 @@ func TestEphemeralStorageResource(t *testing.T) {
// TestRemovePod tests after added pod is removed, its information should also be subtracted.
func TestRemovePod(t *testing.T) {
basePod := makeBasePod(t, "node-1", "test", "100m", "500", "", []v1.ContainerPort{{HostIP: "127.0.0.1", HostPort: 80, Protocol: "TCP"}})
tests := []struct {
nodes []*v1.Node
pod *v1.Pod
wNodeInfo *framework.NodeInfo
}{{
nodes: []*v1.Node{
{
ObjectMeta: metav1.ObjectMeta{Name: "node-1"},
},
{
ObjectMeta: metav1.ObjectMeta{Name: "node-2"},
},
pod := makeBasePod(t, "node-1", "test", "100m", "500", "", []v1.ContainerPort{{HostIP: "127.0.0.1", HostPort: 80, Protocol: "TCP"}})
nodes := []*v1.Node{
{
ObjectMeta: metav1.ObjectMeta{Name: "node-1"},
},
pod: basePod,
wNodeInfo: newNodeInfo(
&framework.Resource{
MilliCPU: 100,
Memory: 500,
},
&framework.Resource{
MilliCPU: 100,
Memory: 500,
},
[]*v1.Pod{basePod},
newHostPortInfoBuilder().add("TCP", "127.0.0.1", 80).build(),
make(map[string]*framework.ImageStateSummary),
),
}}
{
ObjectMeta: metav1.ObjectMeta{Name: "node-2"},
},
}
wNodeInfo := newNodeInfo(
&framework.Resource{
MilliCPU: 100,
Memory: 500,
},
&framework.Resource{
MilliCPU: 100,
Memory: 500,
},
[]*v1.Pod{pod},
newHostPortInfoBuilder().add("TCP", "127.0.0.1", 80).build(),
make(map[string]*framework.ImageStateSummary),
)
tests := map[string]struct {
assume bool
}{
"bound": {},
"assumed": {assume: true},
}
for i, tt := range tests {
t.Run(fmt.Sprintf("case_%d", i), func(t *testing.T) {
nodeName := tt.pod.Spec.NodeName
for name, tt := range tests {
t.Run(name, func(t *testing.T) {
nodeName := pod.Spec.NodeName
cache := newSchedulerCache(time.Second, time.Second, nil)
// Add pod succeeds even before adding the nodes.
if err := cache.AddPod(tt.pod); err != nil {
t.Fatalf("AddPod failed: %v", err)
// Add/Assume pod succeeds even before adding the nodes.
if tt.assume {
if err := cache.AddPod(pod); err != nil {
t.Fatalf("AddPod failed: %v", err)
}
} else {
if err := cache.AssumePod(pod); err != nil {
t.Fatalf("AssumePod failed: %v", err)
}
}
n := cache.nodes[nodeName]
if err := deepEqualWithoutGeneration(n, tt.wNodeInfo); err != nil {
if err := deepEqualWithoutGeneration(n, wNodeInfo); err != nil {
t.Error(err)
}
for _, n := range tt.nodes {
for _, n := range nodes {
cache.AddNode(n)
}
if err := cache.RemovePod(tt.pod); err != nil {
if err := cache.RemovePod(pod); err != nil {
t.Fatalf("RemovePod failed: %v", err)
}
if _, err := cache.GetPod(tt.pod); err == nil {
if _, err := cache.GetPod(pod); err == nil {
t.Errorf("pod was not deleted")
}