fix: add ai Random RandomStrategy

Former-commit-id: bde21281fe09457b3353852e75776df92209a155

api/internal/logic/schedule/schedulesubmitlogic.go

@@ -44,6 +44,7 @@ func (l *ScheduleSubmitLogic) ScheduleSubmit(req *types.ScheduleReq) (resp *type
 		Params:                req.AiOption.Params,
 		Envs:                  req.AiOption.Envs,
 		Cmd:                   req.AiOption.Cmd,
+		ClusterIds:            req.AiOption.AiClusterIds,
 	}
 	aiSchdl, err := schedulers.NewAiScheduler(l.ctx, "", l.svcCtx.Scheduler, opt)
 	if err != nil {

api/internal/scheduler/schedulers/aiScheduler.go

@@ -25,7 +25,6 @@ import (
 	"gitlink.org.cn/JointCloud/pcm-coordinator/api/internal/scheduler/schedulers/option"
 	"gitlink.org.cn/JointCloud/pcm-coordinator/api/internal/scheduler/service/collector"
 	"gitlink.org.cn/JointCloud/pcm-coordinator/api/internal/scheduler/strategy"
-	"gitlink.org.cn/JointCloud/pcm-coordinator/api/internal/scheduler/strategy/param"
 	"gitlink.org.cn/JointCloud/pcm-coordinator/api/pkg/response"
 	"gitlink.org.cn/JointCloud/pcm-coordinator/pkg/constants"
 	"gitlink.org.cn/JointCloud/pcm-coordinator/pkg/models"
@@ -71,44 +70,45 @@ func (as *AiScheduler) PickOptimalStrategy() (strategy.Strategy, error) {
 		return &strategy.SingleAssignment{Cluster: &strategy.AssignedCluster{ClusterId: as.option.ClusterIds[0], Replicas: 1}}, nil
 	}
 
-	resources, err := as.findClustersWithResources()
+	/*	resources, err := as.findClustersWithResources()
 
-	if err != nil {
-		return nil, err
-	}
-	if len(resources) == 0 {
-		return nil, errors.New("no cluster has resources")
-	}
+		if err != nil {
+			return nil, err
+		}
+		if len(resources) == 0 {
+			return nil, errors.New("no cluster has resources")
+		}
 
-	if len(resources) == 1 {
-		var cluster strategy.AssignedCluster
-		cluster.ClusterId = resources[0].ClusterId
-		cluster.Replicas = 1
-		return &strategy.SingleAssignment{Cluster: &cluster}, nil
-	}
+		if len(resources) == 1 {
+			var cluster strategy.AssignedCluster
+			cluster.ClusterId = resources[0].ClusterId
+			cluster.Replicas = 1
+			return &strategy.SingleAssignment{Cluster: &cluster}, nil
+		}
 
-	params := &param.Params{Resources: resources}
+		params := &param.Params{Resources: resources}*/
 
 	switch as.option.StrategyName {
 	case strategy.REPLICATION:
 		var clusterIds []string
-		for _, resource := range resources {
+		/*	for _, resource := range resources {
 			clusterIds = append(clusterIds, resource.ClusterId)
-		}
+		}*/
 		strategy := strategy.NewReplicationStrategy(clusterIds, 1)
 		return strategy, nil
-	case strategy.RESOURCES_PRICING:
-		strategy := strategy.NewPricingStrategy(&param.ResourcePricingParams{Params: params, Replicas: 1})
-		return strategy, nil
-	case strategy.DYNAMIC_RESOURCES:
-		strategy := strategy.NewDynamicResourcesStrategy(params.Resources, as.option, 1)
-		return strategy, nil
+		/*	case strategy.RESOURCES_PRICING:
+				strategy := strategy.NewPricingStrategy(&param.ResourcePricingParams{Params: params, Replicas: 1})
+				return strategy, nil
+			case strategy.DYNAMIC_RESOURCES:
+				strategy := strategy.NewDynamicResourcesStrategy(params.Resources, as.option, 1)
+				return strategy, nil*/
 	case strategy.STATIC_WEIGHT:
 		//todo resources should match cluster StaticWeightMap
 		strategy := strategy.NewStaticWeightStrategy(as.option.ClusterToStaticWeight, as.option.Replica)
 		return strategy, nil
 	case strategy.RANDOM:
-
+		strategy := strategy.NewRandomStrategy(as.option.ClusterIds, as.option.Replica)
+		return strategy, nil
 	}
 
 	return nil, errors.New("no strategy has been chosen")

api/internal/scheduler/strategy/random.go

@@ -1,10 +1,66 @@
 package strategy
 
-/*type RandomStrategy struct {
+import (
+	"github.com/pkg/errors"
+	"math/rand"
+)
+
+type RandomStrategy struct {
 	clusterIds []string
 	replicas   int32
 }
 
-func NewRandomStrategy(clusterIds []string, replicas int32) *NewRandomStrategy {
-	return &RandomStrategy{clusterIds: clusterIds, replicas: replicas}
-}*/
+func NewRandomStrategy(clusterIds []string, replicas int32) *RandomStrategy {
+	return &RandomStrategy{clusterIds: clusterIds,
+		replicas: replicas,
+	}
+}
+
+func (s *RandomStrategy) Schedule() ([]*AssignedCluster, error) {
+
+	if s.replicas < 1 {
+		return nil, errors.New("replicas must be greater than 0")
+	}
+
+	if len(s.clusterIds) < 1 {
+		return nil, errors.New("cluster must be greater than 0")
+	}
+
+	if len(s.clusterIds) == 0 || s.clusterIds == nil {
+		return nil, errors.New("weight must be set")
+	}
+
+	// 创建一个切片来保存每个部分的数量
+	parts := make([]int32, len(s.clusterIds))
+
+	// 首先将每个部分都分配至少一个副本
+	for i := range parts {
+		parts[i] = 1
+		s.replicas--
+	}
+
+	// 剩余要分配的副本数
+	remaining := s.replicas
+
+	// 随机分配剩余的副本
+	for remaining > 0 {
+		// 随机选择一个部分（索引从0到numParts-1）
+		partIndex := rand.Intn(len(s.clusterIds))
+
+		// 如果该部分加上一个副本后不会超过总数，则分配一个副本
+		if parts[partIndex]+1 <= s.replicas {
+			parts[partIndex]++
+			remaining--
+		}
+	}
+
+	var results []*AssignedCluster
+	if len(s.clusterIds) == len(parts) {
+		for i, key := range s.clusterIds {
+			cluster := &AssignedCluster{ClusterId: key, Replicas: parts[i]}
+			results = append(results, cluster)
+		}
+	}
+	return results, nil
+
+}

api/internal/scheduler/strategy/test/strategy_test.go

@@ -202,7 +202,7 @@ func splitRandomParts(total int) []int {
 
 func TestNumRandom(t *testing.T) {
 	total := 10   // 假设副本数是10
-	numParts := 3 // 假设要分成5个集群
+	numParts := 2 // 假设要分成5个集群
 
 	parts, err := splitIntoParts(total, numParts)
 	if err != nil {