fix strategy bugs

Former-commit-id: 1a10655de7ace36f0888008c23b50edb9d89af7c

api/internal/logic/core/pagelisttasklogic.go

@@ -101,8 +101,8 @@ func (l *PageListTaskLogic) updateTaskStatus(tasklist []*types.TaskModel, ch cha
 
 	task := list[0]
 	for i := range list {
-		earliest, _ := time.Parse(constants.Layout_temp, task.UpdatedTime)
-		latest, _ := time.Parse(constants.Layout_temp, list[i].UpdatedTime)
+		earliest, _ := time.Parse(time.RFC3339, task.UpdatedTime)
+		latest, _ := time.Parse(time.RFC3339, list[i].UpdatedTime)
 		if latest.Before(earliest) {
 			task = list[i]
 		}

api/internal/scheduler/schedulers/aiScheduler.go

@@ -113,6 +113,9 @@ func (as *AiScheduler) PickOptimalStrategy() (strategy.Strategy, error) {
 	case strategy.REPLICATION:
 		var clusterIds []string
 		for _, resource := range resources {
+			if resource == nil {
+				continue
+			}
 			clusterIds = append(clusterIds, resource.ClusterId)
 		}
 		strategy := strategy.NewReplicationStrategy(clusterIds, 1)

api/internal/scheduler/strategy/dynamicResources.go

@@ -31,6 +31,11 @@ func (ps *DynamicResourcesStrategy) Schedule() ([]*AssignedCluster, error) {
 		var assignedCluster AssignedCluster
 		var results []*AssignedCluster
 		for _, res := range ps.resources {
+
+			if res == nil {
+				continue
+			}
+
 			if opt.ResourceType == "cpu" {
 				if res.CpuCoreHours <= 0 {
 					cluster := &AssignedCluster{ClusterId: res.ClusterId, Replicas: ps.replicas}