private static async Task <IClusterClient> InitializeWithRetries(ClientBuilderContext context)
{
var attempt = 0;
var stopwatch = Stopwatch.StartNew();
var clientClusterConfig = new ClientConfiguration();
await Task.Delay(TimeSpan.FromSeconds(clientClusterConfig.DelayInitialConnectSeconds));
var clientConfig = new ClientBuilder()
.UseConfiguration(context);
context.ConfigureClientBuilder?.Invoke(clientConfig);
var client = clientConfig.Build();
await client.Connect(async ex =>
{
attempt++;
if (attempt > clientClusterConfig.ConnectionRetry.TotalRetries)
{
Console.WriteLine(ex.Message);
return(false);
}
var delay = RandomUtils.GenerateNumber(clientClusterConfig.ConnectionRetry.MinDelaySeconds, clientClusterConfig.ConnectionRetry.MaxDelaySeconds);
Console.WriteLine("Client cluster {0} failed to connect. Attempt {1} of {2}. Retrying in {3}s.",
context.ClusterId, attempt, clientClusterConfig.ConnectionRetry.TotalRetries, delay);
await Task.Delay(TimeSpan.FromSeconds(delay));
return(true);
});
Console.WriteLine("Client cluster connected successfully to silo {0} in {1:#.##}s.",
context.ClusterId, stopwatch.Elapsed.TotalSeconds);
return(client);
}
public static IClientBuilder UseConfiguration(
this IClientBuilder clientBuilder,
ClientBuilderContext context
)
{
return(clientBuilder
.Configure <ClusterOptions>(config =>
{
config.ClusterId = "dev";
config.ServiceId = "Heroes";
})
.UseConsulClustering(options => {
options.Address = new Uri(context.ConsulEndPoint);
})
.ConfigureApplicationParts(parts => parts.AddApplicationPart(typeof(IHeroGrain).Assembly).WithReferences())
.ConfigureLogging(logging => logging.AddConsole()));
}
public static IServiceCollection UseOrleansClient(this IServiceCollection services, ClientBuilderContext context)
{
if (context == null)
{
throw new ArgumentNullException($"{nameof(context)}");
}
if (context.AppInfo == null)
{
throw new ArgumentNullException($"{nameof(context.AppInfo)}");
}
try
{
Console.WriteLine("Client cluster connecting to silo {0}", context.ClusterId);
var client = InitializeWithRetries(context).Result;
services.AddSingleton(client);
services.AddSignalR().AddOrleans(new SignalRClusterClientProvider(client));
}
catch (Exception ex)
{
Console.WriteLine($"Orleans client initialization failed failed due to {ex}");
Console.ReadLine();
}
return(services);
}
