php - laravel 跨数据库事务问题

Question

我想在 Laravel 中跨数据库事务，我在 DB 中使用了连接，但它无法正常工作，它给出了一个错误，如（一般错误：1205 Lock wait timeout exceeded; try restarting transaction）

class User extends Model
{   
    protected $connection = 'mysql';
}

class StudentDetail extends Model
{
     protected $connection = 'tenant';
}
public function update($id){

try {
     //in Controllerfile 
     //Default connection is 'tenant'
     DB::beginTransaction();
     DB::connection('mysql')->beginTransaction();
     //create a role
     $student = StudentDetail::find($id)
     $student = student->update([
           'name' => $request->name,
           'type' =>  $request->type
     ]);
     $user= Auth::user();
     $uesr->last_accessed_date = date('Y-m-d H:i:s');
     $uesr->update();
     DB::commit();
     DB::connection('mysql')->commit();
}
catch (Exception $e) {
     DB::rollBack();
     DB::connection('mysql')->rollBack();
}
return response()->json(['status' => true, 'message' => 'success']);
}