我在应用程序中使用servicestack.redis，我的订阅方法如下：

protected void Subscribe(string channelsToSubscribe)
        {
            using IRedisClient redisClient = new RedisClient('127.0.0.1', '6379');
            using var subscription = redisClient.CreateSubscription();
            subscription.OnMessage = (channel, msg) =>
            {
                // do something with the message
            };
            subscription.SubscribeToChannels(channelsToSubscribe);
        }

问题是：当我尝试订阅一个频道而redis离线时，我需要继续尝试，直到我有一个稳定的连接并正确订阅为止
所以我做了这个：

protected void Subscribe(string channelsToSubscribe)
        {
            try
            {
                using IRedisClient redisClient = new RedisClient('127.0.0.1', '6379');
                using var subscription = redisClient.CreateSubscription();
                subscription.OnMessage = (channel, msg) =>
                {
                    // do something with the message
                };
                subscription.SubscribeToChannels(channelsToSubscribe);
            }
            catch (Exception e)
            {
                // notify someone that an error happen
                Subscribe(channelsToSubscribe);
            }
        }

这是可行的，但是如果redis离线很长时间，递归堆栈在满的时候会抛出一个错误（stackoverflowexception）。
所以我将递归循环改为do while循环：

protected void Subscribe(string channelsToSubscribe)
        {
            using IRedisClient redisClient = new RedisClient('127.0.0.1', '6379');
            using var subscription = redisClient.CreateSubscription();
            do
            {
                try
                {
                    subscription.OnMessage = (channel, msg) =>
                    {
                        // do something with the message
                    };

                    subscription.SubscribeToChannels(channelsToSubscribe);
                }
                catch (Exception e)
                {
                    // notify someone that an error happen
                }
            } while (redisClient.Ping());
        }

但看起来 redisClient.Ping() 当redis也断开连接时抛出一个异常，我需要得到一个信息告诉我redis是否有稳定的连接，有人知道解决这个问题的方法吗？