public static void Close(RedisInstanceSetting setting)
{
if (_connectionDict.TryGetValue(setting.InstanceName, out ConnectionMultiplexer? connection))
{
connection.Dispose();
_connectionDict.TryRemove(setting.InstanceName, out ConnectionMultiplexer _);
}
}
private static ConnectionMultiplexer GetConnectionMultiplexer(RedisInstanceSetting setting, ILogger logger)
{
if (_connectionDict.TryGetValue(setting.InstanceName, out ConnectionMultiplexer? cached))
{
return(cached);
}
try
{
_connectionLock.Wait();
//Double check
if (_connectionDict.TryGetValue(setting.InstanceName, out ConnectionMultiplexer? cached2))
{
return(cached2);
}
ConfigurationOptions configurationOptions = ConfigurationOptions.Parse(setting.ConnectionString);
//TODO: 调查参数
//configurationOptions.KeepAlive = 30;
//configurationOptions.ConnectTimeout = 10 * 1000;
//configurationOptions.SyncTimeout = 100 * 1000;
//configurationOptions.ReconnectRetryPolicy = new ExponentialRetry(5000);
ConnectionMultiplexer connection = null !;
ReConnectPolicy(setting.ConnectionString, logger).Execute(() =>
{
connection = ConnectionMultiplexer.Connect(configurationOptions);
_connectionDict[setting.InstanceName] = connection;
SetConnectionEvents(connection, logger);
logger.LogInformation($"Redis 链接建立 Connected : {setting.InstanceName}");
});
_connectionLock.Release();
return(connection);
}
catch (Exception ex)
{
_connectionLock.Release();
logger.LogCritical(ex, $"Redis Database获取失败.尝试重新获取。 SettingName:{setting.InstanceName}, Connection:{setting.ConnectionString}");
Close(setting);
Thread.Sleep(5000);
return(GetConnectionMultiplexer(setting, logger));
}
}
public static async Task <IServer> GetServerAsync(RedisInstanceSetting setting, ILogger logger)
{
ConnectionMultiplexer connection = await GetConnectionMultiplexerAsync(setting, logger).ConfigureAwait(false);
return(connection.GetServer(setting.ServerEndPoint));
}
public static IServer GetServer(RedisInstanceSetting setting, ILogger logger)
{
ConnectionMultiplexer connection = GetConnectionMultiplexer(setting, logger);
return(connection.GetServer(setting.ServerEndPoint));
}
public static async Task <IDatabase> GetDatabaseAsync(RedisInstanceSetting setting, ILogger logger)
{
ConnectionMultiplexer connection = await GetConnectionMultiplexerAsync(setting, logger).ConfigureAwait(false);
return(connection.GetDatabase(setting.DatabaseNumber));
}
public static IDatabase GetDatabase(RedisInstanceSetting setting, ILogger logger)
{
//StackExchange.Redis会在GetDatabase缓存，所以这里我们不用缓存IDatabase
return(GetConnectionMultiplexer(setting, logger).GetDatabase(setting.DatabaseNumber));
}