remove useless copy in strategy

Author: CMGS

client/client.go

@@ -44,7 +44,7 @@ func dial(ctx context.Context, addr string, authConfig types.AuthConfig) (*grpc.
 	opts := []grpc.DialOption{
 		grpc.WithInsecure(),
 		grpc.WithKeepaliveParams(keepalive.ClientParameters{Time: 6 * 60 * time.Second, Timeout: time.Second}),
-		grpc.WithBalancerName("round_robin"), // nolint:staticcheck
+		grpc.WithBalancerName("round_robin"), // nolintlint
 		grpc.WithUnaryInterceptor(interceptor.NewUnaryRetry(interceptor.RetryOptions{Max: 1})),
 		grpc.WithStreamInterceptor(interceptor.NewStreamRetry(interceptor.RetryOptions{Max: 1})),
 	}

strategy/average.go

@@ -23,18 +23,16 @@ func AveragePlan(infos []Info, need, total, limit int) (map[string]int, error) {
 		return nil, errors.WithStack(types.NewDetailedErr(types.ErrInsufficientRes,
 			fmt.Sprintf("node len %d < limit, cannot alloc an average node plan", scheduleInfosLength)))
 	}
-	strategyInfos := make([]Info, scheduleInfosLength)
-	copy(strategyInfos, infos)
-	sort.Slice(strategyInfos, func(i, j int) bool { return strategyInfos[i].Capacity > strategyInfos[j].Capacity })
-	p := sort.Search(scheduleInfosLength, func(i int) bool { return strategyInfos[i].Capacity < need })
+	sort.Slice(infos, func(i, j int) bool { return infos[i].Capacity > infos[j].Capacity })
+	p := sort.Search(scheduleInfosLength, func(i int) bool { return infos[i].Capacity < need })
 	if p == 0 {
 		return nil, errors.WithStack(types.NewDetailedErr(types.ErrInsufficientCap, "insufficient nodes, at least 1 needed"))
 	}
 	if p < limit {
 		return nil, types.NewDetailedErr(types.ErrInsufficientRes, fmt.Sprintf("insufficient nodes, %d more needed", limit-p))
 	}
 	deployMap := map[string]int{}
-	for _, strategyInfo := range strategyInfos[:limit] {
+	for _, strategyInfo := range infos[:limit] {
 		deployMap[strategyInfo.Nodename] += need
 	}
 

strategy/fill.go

@@ -13,7 +13,7 @@ import (
 // FillPlan deploy workload each node
 // 根据之前部署的策略每一台补充到 N 个，已经超过 N 个的节点视为已满足
 // need 是每台上限, limit 是限制节点数, 保证最终状态至少有 limit*need 个实例
-// limit=0 代表对所有节点进行填充
+// limit = 0 代表对所有节点进行填充
 func FillPlan(infos []Info, need, _, limit int) (_ map[string]int, err error) {
 	log.Debugf("[FillPlan] need %d limit %d infos %+v", need, limit, infos)
 	scheduleInfosLength := len(infos)