Check if connection timeout is invalid in cluster mode

[FangPengbo]

standalone mode

ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second) rdb := redis.NewClient(&redis.Options{	Addr: u.IP,	Password: u.Password,	})	result, err := rdb.Ping(ctx).Result()	if err != nil {	defer cancel()	if errors.Is(err, context.DeadlineExceeded) {	return res, errors.New("redis connection timed out")	}	return ‘’, err	} 

Effective, return redis connection timed out in 5 seconds

cluster mode

ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second) rdb := redis.NewClusterClient(&redis.ClusterOptions{	Addrs: strings.Split(u.IP, `,`),	Password: u.Password,	})	result, err := rdb.Ping(ctx).Result()	if err != nil {	defer cancel()	if errors.Is(err, context.DeadlineExceeded) {	return res, errors.New("redis connection timed out")	}	return ‘’, err	} 

It is invalid no matter how the context is modified WithTimeout will return after 12 seconds

Does anyone know what's going on?