Microsoft Orleans - Run Multiple Silos from a .NET Core Console App

Follow @AbhithRajanby Abhith RajanApril 24, 2019 · 2 min read · Last Updated: April 24, 2019

My Silo Host project Program.cs Main method looks like below,

1private static async Task Main(string[] args)
2{
3    int siloPort, gatewayPort;
4    try
5    {
6        siloPort = int.Parse(args[0]);
7        gatewayPort = int.Parse(args[1]);
8    }
9    catch (Exception)
10    {
11        siloPort = 11111;
12        gatewayPort = 30000;
13    }
14
15    var invariant = "System.Data.SqlClient"; // for Microsoft SQL Server
16    var connectionString = "Data Source=.;Initial Catalog=OrleansCluster;Integrated Security=True;Pooling=False;Max Pool Size=200;MultipleActiveResultSets=True";
17
18    var siloBuilder = new SiloHostBuilder()
19                    // Clustering information
20                    .Configure<ClusterOptions>(options =>
21                    {
22                        options.ClusterId = "dev";
23                        options.ServiceId = "ServiceApp";
24                    })
25                    .UseAdoNetClustering(options =>
26                    {
27                        options.Invariant = invariant;
28                        options.ConnectionString = connectionString;
29                    })
30                    .ConfigureEndpoints(siloPort: siloPort, gatewayPort: gatewayPort)
31                    
32                    .ConfigureLogging(logging => logging.AddConsole());
33
34    using (var host = siloBuilder.Build())
35    {
36        await host.StartAsync();
37        Console.ReadLine();
38    }
39}

To run multiple Silo, we need to specify different set of ports for each. Here we are achieving the same via parsing the args.

Now you can run a Silo by executing following command on the Silo project root directory

1dotnet run <siloPort> <gatewayPort>

eg,

1dotnet run 11111 30000
2dotnet run 11112 30001
3dotnet run 11113 30002

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Microsoft Orleans - Run Multiple Silos from a .NET Core Console App

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