diff --git a/pkg/common/db/model/group.go b/pkg/common/db/model/group.go
index 60f1cd88f..e1d03a14f 100644
--- a/pkg/common/db/model/group.go
+++ b/pkg/common/db/model/group.go
@@ -24,6 +24,15 @@ type GroupModel struct {
 	cache *cache.GroupCache
 	mongo *mongoDB.Client
 }
+type DataBase interface {
+	Find(ctx context.Context, groupIDs []string) (groups []*mysql.Group, err error)
+	Create(ctx context.Context, groups []*mysql.Group) error
+	Delete(ctx context.Context, groupIDs []string) error
+	Take(ctx context.Context, groupID string) (group *mysql.Group, err error)
+	DeleteTx(ctx context.Context, groupIDs []string) error
+}
+type Database struct {
+}
 
 func NewGroupModel(db mysql.GroupModelInterface, rdb redis.UniversalClient, mdb *mongo.Client) *GroupModel {
 	var groupModel GroupModel
@@ -32,8 +41,6 @@ func NewGroupModel(db mysql.GroupModelInterface, rdb redis.UniversalClient, mdb
 		DisableCacheRead:  false,
 		StrongConsistency: true,
 	})
-	sg := mdb.Database().Collection()
-	sg.Find()
 	groupModel.mongo = mongoDB.NewMongoClient(mdb)
 	return &groupModel
 }
diff --git a/pkg/common/db/mysql/group_model_k.go b/pkg/common/db/mysql/group_model_k.go
index 987ace740..7f7a626bf 100644
--- a/pkg/common/db/mysql/group_model_k.go
+++ b/pkg/common/db/mysql/group_model_k.go
@@ -16,7 +16,6 @@ type GroupModelInterface interface {
 	Update(ctx context.Context, groups []*Group) (err error)
 	Find(ctx context.Context, groupIDs []string) (groups []*Group, err error)
 	Take(ctx context.Context, groupID string) (group *Group, err error)
-	DeleteTx(ctx context.Context, groupIDs []string) error
 
 	//mongo
 }