加分布式锁

internal/service/package/usage_service.go

@@ -13,6 +13,7 @@ import (
 	"github.com/redis/go-redis/v9"
 	"go.uber.org/zap"
 	"gorm.io/gorm"
+	"gorm.io/gorm/clause"
 )
 
 const (
@@ -301,7 +302,8 @@ func (s *UsageService) queryActivePackages(tx *gorm.DB, carrierType string, carr
 
 	var packages []*model.PackageUsage
 	if err := query.
-		Order("CASE WHEN master_usage_id IS NOT NULL THEN 0 ELSE 1 END, priority ASC").
+		Clauses(clause.Locking{Strength: "UPDATE"}).
+		Order("CASE WHEN master_usage_id IS NOT NULL THEN 0 ELSE 1 END, priority ASC, id ASC").
 		Find(&packages).Error; err != nil {
 		return nil, errors.Wrap(errors.CodeDatabaseError, err, "查询生效套餐失败")
 	}