Adjust weight of PodTopologySpread to 2 in legacy Policy API

Author: Huang-Wei

pkg/scheduler/framework/plugins/legacy_registry.go

@@ -213,7 +213,7 @@ func NewLegacyRegistry() *LegacyRegistry {
 			NodeAffinityPriority:        1,
 			TaintTolerationPriority:     1,
 			ImageLocalityPriority:       1,
-			EvenPodsSpreadPriority:      1,
+			EvenPodsSpreadPriority:      2,
 		},
 
 		PredicateToConfigProducer: make(map[string]ConfigProducer),

test/integration/scheduler/scheduler_test.go

@@ -134,7 +134,7 @@ func TestSchedulerCreationFromConfigMap(t *testing.T) {
 				},
 				"ScorePlugin": {
 					{Name: "NodeResourcesBalancedAllocation", Weight: 1},
-					{Name: "PodTopologySpread", Weight: 1},
+					{Name: "PodTopologySpread", Weight: 2},
 					{Name: "ImageLocality", Weight: 1},
 					{Name: "InterPodAffinity", Weight: 1},
 					{Name: "NodeResourcesLeastAllocated", Weight: 1},
@@ -228,7 +228,7 @@ kind: Policy
 				},
 				"ScorePlugin": {
 					{Name: "NodeResourcesBalancedAllocation", Weight: 1},
-					{Name: "PodTopologySpread", Weight: 1},
+					{Name: "PodTopologySpread", Weight: 2},
 					{Name: "ImageLocality", Weight: 1},
 					{Name: "InterPodAffinity", Weight: 1},
 					{Name: "NodeResourcesLeastAllocated", Weight: 1},