.Net支持Redis哨兵模式

csredis 博客

csRedisgit地址

csRedis3.2.1 Nuget地址 (在使用csredis3.2.1获取sentinel时产生运行时异常，调查问题最后发现是获取sentinel的s-down-time配置参数存在问题。在sentinel集群中并非每个sentinel都能获取到这个参数，获取不到就抛出异常了。)

https://yq.aliyun.com/articles/503938

修复csredis获取redis sentinel的问题

http://blog.bossma.cn/csharp/fix-csredis-get-redis-sentinel-problem/

/// <summary>
    /// RedisSentinelManagerContext
    /// </summary>
    public class RedisSentinelManagerContext
    {
        /// <summary>
        /// 哨兵默认端口
        /// </summary>
        private const int DefaultSentinelPort = 26379;

        /// <summary>
        /// Redis哨兵配置地址
        /// </summary>
        private static readonly string RedisSentinelAddresses = ConfigurationHelper.AppSetting("redis.sentinelAddresses");

        /// <summary>
        /// Redis哨兵Master地址
        /// </summary>
        private static readonly string RedisMasterName = ConfigurationHelper.AppSetting("redis.masterName");

        /// <summary>
        /// Redis密码
        /// </summary>
        private static readonly string RedisPassword = ConfigurationHelper.AppSetting("redis.password");

        /// <summary>
        /// RedisSentinelManager实例
        /// </summary>
        private static RedisSentinelManager _instance;

        /// <summary>
        /// RedisSentinelManager实例
        /// </summary>
        public static RedisSentinelManager Instance()
        {
            if (_instance == null)
            {
                if (string.IsNullOrEmpty(RedisSentinelAddresses) || string.IsNullOrEmpty(RedisMasterName))
                {
                    throw new Exception("没有配置Redis的哨兵地址或Master名称");
                }

                var param = new string[0];
                _instance = new RedisSentinelManager(param);
                RedisSentinelAddresses.Split(',').ForEach(p =>
                {
                    var arr = p.Split(':');
                    _instance.Add(arr[0], arr.Length >= 2 ? int.Parse(arr[1]) : DefaultSentinelPort);
                });
                if(!string.IsNullOrEmpty(RedisPassword))
                _instance.Connected += (s, e) => _instance.Call(x => x.Auth(RedisPassword));
                _instance.Connect(RedisMasterName);
            }

            return _instance;
        }

        public static string StringSet(string key, string value, int seconds)
        {
            return _instance.Call(r => r.Set(key, value, seconds));
        }

        public static string StringSet(string key, string value, TimeSpan ts)
        {
            return _instance.Call(r => r.Set(key, value, ts));
        }

        public static string StringGet(string key)
        {
            return _instance.Call(r => r.Get(key));
        }

        public static bool KeyExpire(string key, int seconds)
        {
            return _instance.Call(r => r.Expire(key, seconds));
        }
        public static bool KeyExpire(string key, TimeSpan expiration)
        {
            return _instance.Call(r => r.Expire(key, expiration));
        }

        public static bool KeyExist(string key)
        {
            return _instance.Call(r => r.Exists(key));
        }

        public static bool HSet(string key, string field, object value)
        {
            return _instance.Call(r => r.HSet(key, field, value));
        }
        public static string HMSet(string key, Dictionary<string, string> dict)
        {
            return _instance.Call(r => r.HMSet(key, dict));
        }

        public static Dictionary<string, string> HGetAll(string key)
        {
            return _instance.Call(r => r.HGetAll(key));
        }

        public static string HGet(string key, string field)
        {
            return _instance.Call(r => r.HGet(key, field));
        }

        public static bool HExists(string key, string field)
        {
            return _instance.Call(r => r.HExists(key, field));
        }

        public static long HDel(string key, params string[] fields)
        {
            return _instance.Call(r => r.HDel(key, fields));
        }
    }