redis-有可能对endpoint进行优先级排序吗？

Question

null

编辑：

这是我的连接代码。我没有使用推荐的懒惰getter的原因是，我希望在其中一个节点出现故障时连接/重新连接，这与我的解决方案非常吻合。

internal class RedisConnector
{
    private readonly ConfigurationOptions _currentConfiguration;
    internal ConnectionMultiplexer Connection;

    internal RedisCacheStore Store;

    internal RedisConnector(ConfigurationOptions configuration)
    {
        _currentConfiguration = configuration;
        Connect();
    }

    internal IDatabase Database
        => Connection.GetDatabase(RedisCacheConfiguration.Instance.Connection.DatabaseId);

    internal IServer Server => Connection.GetServer(Database.IdentifyEndpoint());

    private void Connect()
    {
        Connection = ConnectionMultiplexer.Connect(_currentConfiguration);
        if (Connection == null || !Connection.IsConnected)
            throw new CacheNotAvailableException();
        Connection.ConnectionFailed += OnConnectionFailed;
        Connection.ConnectionRestored += OnConnectionRestored;
        Store = new RedisCacheStore(Database);
    }

    private void Reconnect()
    {
        if (Connection != null && !Connection.IsConnected)
            Connection.Dispose();
        Connect();
    }

    private void OnConnectionFailed(object sender, ConnectionFailedEventArgs args)
    {
        lock (_currentConfiguration)
        {
            if (_currentConfiguration.EndPoints.Contains(args.EndPoint))
            {
                _currentConfiguration.EndPoints.Remove(args.EndPoint);
                Reconnect();
            }
        }
    }

    private void OnConnectionRestored(object sender, ConnectionFailedEventArgs args)
    {
        lock (_currentConfiguration)
        {
            if (!_currentConfiguration.EndPoints.Contains(args.EndPoint))
            {
                _currentConfiguration.EndPoints.Add(args.EndPoint);
                Reconnect();
            }
        }
    }
}

Answer 1

在这种情况下。

您可以实现一些规则，如下所示：

private static Lazy<ConfigurationOptions> configOptions
    = new Lazy<ConfigurationOptions>(() => 
    {
        var configOptions = new ConfigurationOptions();
        configOptions.EndPoints.Add("x.x.x.1:6379");          
        configOptions.EndPoints.Add("x.x.x.2:6379");
        configOptions.EndPoints.Add("x.x.x.3:6379");

        configOptions.ClientName = "LeakyRedisConnection";
        configOptions.ConnectTimeout = 100000;
        configOptions.SyncTimeout = 100000;
        return configOptions;
    });



private static string getIP()
{
    var host = Dns.GetHostEntry(Dns.GetHostName());
    foreach (var ip in host.AddressList)
    {
        if (ip.AddressFamily == AddressFamily.InterNetwork)
        {
            return ip.ToString();
        }
    }
    throw new Exception("ip not found!");
}


private static Lazy<ConfigurationOptions> getOptionsForIp(string myip)
        {
            var configOptions = new ConfigurationOptions();
            configOptions.EndPoints.Add(myip);
            configOptions.ClientName = "LeakyRedisConnectionDirectVM";
            configOptions.ConnectTimeout = 100000;
            configOptions.SyncTimeout = 100000;
            return configOptions;
        });


private static ConnectionMultiplexer conn;

private static ConnectionMultiplexer LeakyConn
{
    get
    {
        if (conn == null || !conn.IsConnected){               
            string myIP = getIP();

            conn = ConnectionMultiplexer.Connect(getOptionsForIp(myIP).Value);
            if(conn == null || !conn.IsConnected){
                conn = ConnectionMultiplexer.Connect(configOptions.Value);
            }

        }
        return conn;
    }
}

如何使用此代码：

 var db = LeakyConn.GetDatabase();
 db.StringSet(key, i);
 db.StringGet(key);